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Commit ecf94595 authored by Billy Donahue's avatar Billy Donahue
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googlemock/scripts/gmock_doctor.py 0 → 100755
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#!/usr/bin/env python
#
# Copyright 2008, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Converts compiler's errors in code using Google Mock to plain English."""
__author__ = 'wan@google.com (Zhanyong Wan)'
import re
import sys
_VERSION = '1.0.3'
_EMAIL = 'googlemock@googlegroups.com'
_COMMON_GMOCK_SYMBOLS = [
# Matchers
'_',
'A',
'AddressSatisfies',
'AllOf',
'An',
'AnyOf',
'ContainerEq',
'Contains',
'ContainsRegex',
'DoubleEq',
'ElementsAre',
'ElementsAreArray',
'EndsWith',
'Eq',
'Field',
'FloatEq',
'Ge',
'Gt',
'HasSubstr',
'IsInitializedProto',
'Le',
'Lt',
'MatcherCast',
'Matches',
'MatchesRegex',
'NanSensitiveDoubleEq',
'NanSensitiveFloatEq',
'Ne',
'Not',
'NotNull',
'Pointee',
'Property',
'Ref',
'ResultOf',
'SafeMatcherCast',
'StartsWith',
'StrCaseEq',
'StrCaseNe',
'StrEq',
'StrNe',
'Truly',
'TypedEq',
'Value',
# Actions
'Assign',
'ByRef',
'DeleteArg',
'DoAll',
'DoDefault',
'IgnoreResult',
'Invoke',
'InvokeArgument',
'InvokeWithoutArgs',
'Return',
'ReturnNew',
'ReturnNull',
'ReturnRef',
'SaveArg',
'SetArgReferee',
'SetArgPointee',
'SetArgumentPointee',
'SetArrayArgument',
'SetErrnoAndReturn',
'Throw',
'WithArg',
'WithArgs',
'WithoutArgs',
# Cardinalities
'AnyNumber',
'AtLeast',
'AtMost',
'Between',
'Exactly',
# Sequences
'InSequence',
'Sequence',
# Misc
'DefaultValue',
'Mock',
]
# Regex for matching source file path and line number in the compiler's errors.
_GCC_FILE_LINE_RE = r'(?P<file>.*):(?P<line>\d+):(\d+:)?\s+'
_CLANG_FILE_LINE_RE = r'(?P<file>.*):(?P<line>\d+):(?P<column>\d+):\s+'
_CLANG_NON_GMOCK_FILE_LINE_RE = (
r'(?P<file>.*[/\\^](?!gmock-)[^/\\]+):(?P<line>\d+):(?P<column>\d+):\s+')
def _FindAllMatches(regex, s):
"""Generates all matches of regex in string s."""
r = re.compile(regex)
return r.finditer(s)
def _GenericDiagnoser(short_name, long_name, diagnoses, msg):
"""Diagnoses the given disease by pattern matching.
Can provide different diagnoses for different patterns.
Args:
short_name: Short name of the disease.
long_name: Long name of the disease.
diagnoses: A list of pairs (regex, pattern for formatting the diagnosis
for matching regex).
msg: Compiler's error messages.
Yields:
Tuples of the form
(short name of disease, long name of disease, diagnosis).
"""
for regex, diagnosis in diagnoses:
if re.search(regex, msg):
diagnosis = '%(file)s:%(line)s:' + diagnosis
for m in _FindAllMatches(regex, msg):
yield (short_name, long_name, diagnosis % m.groupdict())
def _NeedToReturnReferenceDiagnoser(msg):
"""Diagnoses the NRR disease, given the error messages by the compiler."""
gcc_regex = (r'In member function \'testing::internal::ReturnAction<R>.*\n'
+ _GCC_FILE_LINE_RE + r'instantiated from here\n'
r'.*gmock-actions\.h.*error: creating array with negative size')
clang_regex = (r'error:.*array.*negative.*\r?\n'
r'(.*\n)*?' +
_CLANG_NON_GMOCK_FILE_LINE_RE +
r'note: in instantiation of function template specialization '
r'\'testing::internal::ReturnAction<(?P<type>.*)>'
r'::operator Action<.*>\' requested here')
clang11_re = (r'use_ReturnRef_instead_of_Return_to_return_a_reference.*'
r'(.*\n)*?' + _CLANG_NON_GMOCK_FILE_LINE_RE)
diagnosis = """
You are using a Return() action in a function that returns a reference to
%(type)s. Please use ReturnRef() instead."""
return _GenericDiagnoser('NRR', 'Need to Return Reference',
[(clang_regex, diagnosis),
(clang11_re, diagnosis % {'type': 'a type'}),
(gcc_regex, diagnosis % {'type': 'a type'})],
msg)
def _NeedToReturnSomethingDiagnoser(msg):
"""Diagnoses the NRS disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'(instantiated from here\n.'
r'*gmock.*actions\.h.*error: void value not ignored)'
r'|(error: control reaches end of non-void function)')
clang_regex1 = (_CLANG_FILE_LINE_RE +
r'error: cannot initialize return object '
r'of type \'Result\' \(aka \'(?P<return_type>.*)\'\) '
r'with an rvalue of type \'void\'')
clang_regex2 = (_CLANG_FILE_LINE_RE +
r'error: cannot initialize return object '
r'of type \'(?P<return_type>.*)\' '
r'with an rvalue of type \'void\'')
diagnosis = """
You are using an action that returns void, but it needs to return
%(return_type)s. Please tell it *what* to return. Perhaps you can use
the pattern DoAll(some_action, Return(some_value))?"""
return _GenericDiagnoser(
'NRS',
'Need to Return Something',
[(gcc_regex, diagnosis % {'return_type': '*something*'}),
(clang_regex1, diagnosis),
(clang_regex2, diagnosis)],
msg)
def _NeedToReturnNothingDiagnoser(msg):
"""Diagnoses the NRN disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'instantiated from here\n'
r'.*gmock-actions\.h.*error: instantiation of '
r'\'testing::internal::ReturnAction<R>::Impl<F>::value_\' '
r'as type \'void\'')
clang_regex1 = (r'error: field has incomplete type '
r'\'Result\' \(aka \'void\'\)(\r)?\n'
r'(.*\n)*?' +
_CLANG_NON_GMOCK_FILE_LINE_RE + r'note: in instantiation '
r'of function template specialization '
r'\'testing::internal::ReturnAction<(?P<return_type>.*)>'
r'::operator Action<void \(.*\)>\' requested here')
clang_regex2 = (r'error: field has incomplete type '
r'\'Result\' \(aka \'void\'\)(\r)?\n'
r'(.*\n)*?' +
_CLANG_NON_GMOCK_FILE_LINE_RE + r'note: in instantiation '
r'of function template specialization '
r'\'testing::internal::DoBothAction<.*>'
r'::operator Action<(?P<return_type>.*) \(.*\)>\' '
r'requested here')
diagnosis = """
You are using an action that returns %(return_type)s, but it needs to return
void. Please use a void-returning action instead.
All actions but the last in DoAll(...) must return void. Perhaps you need
to re-arrange the order of actions in a DoAll(), if you are using one?"""
return _GenericDiagnoser(
'NRN',
'Need to Return Nothing',
[(gcc_regex, diagnosis % {'return_type': '*something*'}),
(clang_regex1, diagnosis),
(clang_regex2, diagnosis)],
msg)
def _IncompleteByReferenceArgumentDiagnoser(msg):
"""Diagnoses the IBRA disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'instantiated from here\n'
r'.*gtest-printers\.h.*error: invalid application of '
r'\'sizeof\' to incomplete type \'(?P<type>.*)\'')
clang_regex = (r'.*gtest-printers\.h.*error: invalid application of '
r'\'sizeof\' to an incomplete type '
r'\'(?P<type>.*)( const)?\'\r?\n'
r'(.*\n)*?' +
_CLANG_NON_GMOCK_FILE_LINE_RE +
r'note: in instantiation of member function '
r'\'testing::internal2::TypeWithoutFormatter<.*>::'
r'PrintValue\' requested here')
diagnosis = """
In order to mock this function, Google Mock needs to see the definition
of type "%(type)s" - declaration alone is not enough. Either #include
the header that defines it, or change the argument to be passed
by pointer."""
return _GenericDiagnoser('IBRA', 'Incomplete By-Reference Argument Type',
[(gcc_regex, diagnosis),
(clang_regex, diagnosis)],
msg)
def _OverloadedFunctionMatcherDiagnoser(msg):
"""Diagnoses the OFM disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'error: no matching function for '
r'call to \'Truly\(<unresolved overloaded function type>\)')
clang_regex = (_CLANG_FILE_LINE_RE + r'error: no matching function for '
r'call to \'Truly')
diagnosis = """
The argument you gave to Truly() is an overloaded function. Please tell
your compiler which overloaded version you want to use.
For example, if you want to use the version whose signature is
bool Foo(int n);
you should write
Truly(static_cast<bool (*)(int n)>(Foo))"""
return _GenericDiagnoser('OFM', 'Overloaded Function Matcher',
[(gcc_regex, diagnosis),
(clang_regex, diagnosis)],
msg)
def _OverloadedFunctionActionDiagnoser(msg):
"""Diagnoses the OFA disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'error: no matching function for call to '
r'\'Invoke\(<unresolved overloaded function type>')
clang_regex = (_CLANG_FILE_LINE_RE + r'error: no matching '
r'function for call to \'Invoke\'\r?\n'
r'(.*\n)*?'
r'.*\bgmock-generated-actions\.h:\d+:\d+:\s+'
r'note: candidate template ignored:\s+'
r'couldn\'t infer template argument \'FunctionImpl\'')
diagnosis = """
Function you are passing to Invoke is overloaded. Please tell your compiler
which overloaded version you want to use.
For example, if you want to use the version whose signature is
bool MyFunction(int n, double x);
you should write something like
Invoke(static_cast<bool (*)(int n, double x)>(MyFunction))"""
return _GenericDiagnoser('OFA', 'Overloaded Function Action',
[(gcc_regex, diagnosis),
(clang_regex, diagnosis)],
msg)
def _OverloadedMethodActionDiagnoser(msg):
"""Diagnoses the OMA disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'error: no matching function for '
r'call to \'Invoke\(.+, <unresolved overloaded function '
r'type>\)')
clang_regex = (_CLANG_FILE_LINE_RE + r'error: no matching function '
r'for call to \'Invoke\'\r?\n'
r'(.*\n)*?'
r'.*\bgmock-generated-actions\.h:\d+:\d+: '
r'note: candidate function template not viable: '
r'requires .*, but 2 (arguments )?were provided')
diagnosis = """
The second argument you gave to Invoke() is an overloaded method. Please
tell your compiler which overloaded version you want to use.
For example, if you want to use the version whose signature is
class Foo {
...
bool Bar(int n, double x);
};
you should write something like
Invoke(foo, static_cast<bool (Foo::*)(int n, double x)>(&Foo::Bar))"""
return _GenericDiagnoser('OMA', 'Overloaded Method Action',
[(gcc_regex, diagnosis),
(clang_regex, diagnosis)],
msg)
def _MockObjectPointerDiagnoser(msg):
"""Diagnoses the MOP disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'error: request for member '
r'\'gmock_(?P<method>.+)\' in \'(?P<mock_object>.+)\', '
r'which is of non-class type \'(.*::)*(?P<class_name>.+)\*\'')
clang_regex = (_CLANG_FILE_LINE_RE + r'error: member reference type '
r'\'(?P<class_name>.*?) *\' is a pointer; '
r'(did you mean|maybe you meant) to use \'->\'\?')
diagnosis = """
The first argument to ON_CALL() and EXPECT_CALL() must be a mock *object*,
not a *pointer* to it. Please write '*(%(mock_object)s)' instead of
'%(mock_object)s' as your first argument.
For example, given the mock class:
class %(class_name)s : public ... {
...
MOCK_METHOD0(%(method)s, ...);
};
and the following mock instance:
%(class_name)s* mock_ptr = ...
you should use the EXPECT_CALL like this:
EXPECT_CALL(*mock_ptr, %(method)s(...));"""
return _GenericDiagnoser(
'MOP',
'Mock Object Pointer',
[(gcc_regex, diagnosis),
(clang_regex, diagnosis % {'mock_object': 'mock_object',
'method': 'method',
'class_name': '%(class_name)s'})],
msg)
def _NeedToUseSymbolDiagnoser(msg):
"""Diagnoses the NUS disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE + r'error: \'(?P<symbol>.+)\' '
r'(was not declared in this scope|has not been declared)')
clang_regex = (_CLANG_FILE_LINE_RE +
r'error: (use of undeclared identifier|unknown type name|'
r'no template named) \'(?P<symbol>[^\']+)\'')
diagnosis = """
'%(symbol)s' is defined by Google Mock in the testing namespace.
Did you forget to write
using testing::%(symbol)s;
?"""
for m in (list(_FindAllMatches(gcc_regex, msg)) +
list(_FindAllMatches(clang_regex, msg))):
symbol = m.groupdict()['symbol']
if symbol in _COMMON_GMOCK_SYMBOLS:
yield ('NUS', 'Need to Use Symbol', diagnosis % m.groupdict())
def _NeedToUseReturnNullDiagnoser(msg):
"""Diagnoses the NRNULL disease, given the error messages by the compiler."""
gcc_regex = ('instantiated from \'testing::internal::ReturnAction<R>'
'::operator testing::Action<Func>\(\) const.*\n' +
_GCC_FILE_LINE_RE + r'instantiated from here\n'
r'.*error: no matching function for call to \'ImplicitCast_\('
r'(:?long )?int&\)')
clang_regex = (r'\bgmock-actions.h:.* error: no matching function for '
r'call to \'ImplicitCast_\'\r?\n'
r'(.*\n)*?' +
_CLANG_NON_GMOCK_FILE_LINE_RE + r'note: in instantiation '
r'of function template specialization '
r'\'testing::internal::ReturnAction<(int|long)>::operator '
r'Action<(?P<type>.*)\(\)>\' requested here')
diagnosis = """
You are probably calling Return(NULL) and the compiler isn't sure how to turn
NULL into %(type)s. Use ReturnNull() instead.
Note: the line number may be off; please fix all instances of Return(NULL)."""
return _GenericDiagnoser(
'NRNULL', 'Need to use ReturnNull',
[(clang_regex, diagnosis),
(gcc_regex, diagnosis % {'type': 'the right type'})],
msg)
def _TypeInTemplatedBaseDiagnoser(msg):
"""Diagnoses the TTB disease, given the error messages by the compiler."""
# This version works when the type is used as the mock function's return
# type.
gcc_4_3_1_regex_type_in_retval = (
r'In member function \'int .*\n' + _GCC_FILE_LINE_RE +
r'error: a function call cannot appear in a constant-expression')
gcc_4_4_0_regex_type_in_retval = (
r'error: a function call cannot appear in a constant-expression'
+ _GCC_FILE_LINE_RE + r'error: template argument 1 is invalid\n')
# This version works when the type is used as the mock function's sole
# parameter type.
gcc_regex_type_of_sole_param = (
_GCC_FILE_LINE_RE +
r'error: \'(?P<type>.+)\' was not declared in this scope\n'
r'.*error: template argument 1 is invalid\n')
# This version works when the type is used as a parameter of a mock
# function that has multiple parameters.
gcc_regex_type_of_a_param = (
r'error: expected `;\' before \'::\' token\n'
+ _GCC_FILE_LINE_RE +
r'error: \'(?P<type>.+)\' was not declared in this scope\n'
r'.*error: template argument 1 is invalid\n'
r'.*error: \'.+\' was not declared in this scope')
clang_regex_type_of_retval_or_sole_param = (
_CLANG_FILE_LINE_RE +
r'error: use of undeclared identifier \'(?P<type>.*)\'\n'
r'(.*\n)*?'
r'(?P=file):(?P=line):\d+: error: '
r'non-friend class member \'Result\' cannot have a qualified name'
)
clang_regex_type_of_a_param = (
_CLANG_FILE_LINE_RE +
r'error: C\+\+ requires a type specifier for all declarations\n'
r'(.*\n)*?'
r'(?P=file):(?P=line):(?P=column): error: '
r'C\+\+ requires a type specifier for all declarations'
)
clang_regex_unknown_type = (
_CLANG_FILE_LINE_RE +
r'error: unknown type name \'(?P<type>[^\']+)\''
)
diagnosis = """
In a mock class template, types or typedefs defined in the base class
template are *not* automatically visible. This is how C++ works. Before
you can use a type or typedef named %(type)s defined in base class Base<T>, you
need to make it visible. One way to do it is:
typedef typename Base<T>::%(type)s %(type)s;"""
for diag in _GenericDiagnoser(
'TTB', 'Type in Template Base',
[(gcc_4_3_1_regex_type_in_retval, diagnosis % {'type': 'Foo'}),
(gcc_4_4_0_regex_type_in_retval, diagnosis % {'type': 'Foo'}),
(gcc_regex_type_of_sole_param, diagnosis),
(gcc_regex_type_of_a_param, diagnosis),
(clang_regex_type_of_retval_or_sole_param, diagnosis),
(clang_regex_type_of_a_param, diagnosis % {'type': 'Foo'})],
msg):
yield diag
# Avoid overlap with the NUS pattern.
for m in _FindAllMatches(clang_regex_unknown_type, msg):
type_ = m.groupdict()['type']
if type_ not in _COMMON_GMOCK_SYMBOLS:
yield ('TTB', 'Type in Template Base', diagnosis % m.groupdict())
def _WrongMockMethodMacroDiagnoser(msg):
"""Diagnoses the WMM disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE +
r'.*this_method_does_not_take_(?P<wrong_args>\d+)_argument.*\n'
r'.*\n'
r'.*candidates are.*FunctionMocker<[^>]+A(?P<args>\d+)\)>')
clang_regex = (_CLANG_NON_GMOCK_FILE_LINE_RE +
r'error:.*array.*negative.*r?\n'
r'(.*\n)*?'
r'(?P=file):(?P=line):(?P=column): error: too few arguments '
r'to function call, expected (?P<args>\d+), '
r'have (?P<wrong_args>\d+)')
clang11_re = (_CLANG_NON_GMOCK_FILE_LINE_RE +
r'.*this_method_does_not_take_'
r'(?P<wrong_args>\d+)_argument.*')
diagnosis = """
You are using MOCK_METHOD%(wrong_args)s to define a mock method that has
%(args)s arguments. Use MOCK_METHOD%(args)s (or MOCK_CONST_METHOD%(args)s,
MOCK_METHOD%(args)s_T, MOCK_CONST_METHOD%(args)s_T as appropriate) instead."""
return _GenericDiagnoser('WMM', 'Wrong MOCK_METHODn Macro',
[(gcc_regex, diagnosis),
(clang11_re, diagnosis % {'wrong_args': 'm',
'args': 'n'}),
(clang_regex, diagnosis)],
msg)
def _WrongParenPositionDiagnoser(msg):
"""Diagnoses the WPP disease, given the error messages by the compiler."""
gcc_regex = (_GCC_FILE_LINE_RE +
r'error:.*testing::internal::MockSpec<.* has no member named \''
r'(?P<method>\w+)\'')
clang_regex = (_CLANG_NON_GMOCK_FILE_LINE_RE +
r'error: no member named \'(?P<method>\w+)\' in '
r'\'testing::internal::MockSpec<.*>\'')
diagnosis = """
The closing parenthesis of ON_CALL or EXPECT_CALL should be *before*
".%(method)s". For example, you should write:
EXPECT_CALL(my_mock, Foo(_)).%(method)s(...);
instead of:
EXPECT_CALL(my_mock, Foo(_).%(method)s(...));"""
return _GenericDiagnoser('WPP', 'Wrong Parenthesis Position',
[(gcc_regex, diagnosis),
(clang_regex, diagnosis)],
msg)
_DIAGNOSERS = [
_IncompleteByReferenceArgumentDiagnoser,
_MockObjectPointerDiagnoser,
_NeedToReturnNothingDiagnoser,
_NeedToReturnReferenceDiagnoser,
_NeedToReturnSomethingDiagnoser,
_NeedToUseReturnNullDiagnoser,
_NeedToUseSymbolDiagnoser,
_OverloadedFunctionActionDiagnoser,
_OverloadedFunctionMatcherDiagnoser,
_OverloadedMethodActionDiagnoser,
_TypeInTemplatedBaseDiagnoser,
_WrongMockMethodMacroDiagnoser,
_WrongParenPositionDiagnoser,
]
def Diagnose(msg):
"""Generates all possible diagnoses given the compiler error message."""
msg = re.sub(r'\x1b\[[^m]*m', '', msg) # Strips all color formatting.
# Assuming the string is using the UTF-8 encoding, replaces the left and
# the right single quote characters with apostrophes.
msg = re.sub(r'(\xe2\x80\x98|\xe2\x80\x99)', "'", msg)
diagnoses = []
for diagnoser in _DIAGNOSERS:
for diag in diagnoser(msg):
diagnosis = '[%s - %s]\n%s' % diag
if not diagnosis in diagnoses:
diagnoses.append(diagnosis)
return diagnoses
def main():
print ('Google Mock Doctor v%s - '
'diagnoses problems in code using Google Mock.' % _VERSION)
if sys.stdin.isatty():
print ('Please copy and paste the compiler errors here. Press c-D when '
'you are done:')
else:
print 'Waiting for compiler errors on stdin . . .'
msg = sys.stdin.read().strip()
diagnoses = Diagnose(msg)
count = len(diagnoses)
if not count:
print ("""
Your compiler complained:
8<------------------------------------------------------------
%s
------------------------------------------------------------>8
Uh-oh, I'm not smart enough to figure out what the problem is. :-(
However...
If you send your source code and the compiler's error messages to
%s, you can be helped and I can get smarter --
win-win for us!""" % (msg, _EMAIL))
else:
print '------------------------------------------------------------'
print 'Your code appears to have the following',
if count > 1:
print '%s diseases:' % (count,)
else:
print 'disease:'
i = 0
for d in diagnoses:
i += 1
if count > 1:
print '\n#%s:' % (i,)
print d
print ("""
How did I do? If you think I'm wrong or unhelpful, please send your
source code and the compiler's error messages to %s.
Then you can be helped and I can get smarter -- I promise I won't be upset!""" %
_EMAIL)
if __name__ == '__main__':
main()
googlemock/scripts/upload_gmock.py 0 → 100755
View file @ ecf94595
#!/usr/bin/env python
#
# Copyright 2009, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""upload_gmock.py v0.1.0 -- uploads a Google Mock patch for review.
This simple wrapper passes all command line flags and
--cc=googlemock@googlegroups.com to upload.py.
USAGE: upload_gmock.py [options for upload.py]
"""
__author__ = 'wan@google.com (Zhanyong Wan)'
import os
import sys
CC_FLAG = '--cc='
GMOCK_GROUP = 'googlemock@googlegroups.com'
def main():
# Finds the path to upload.py, assuming it is in the same directory
# as this file.
my_dir = os.path.dirname(os.path.abspath(__file__))
upload_py_path = os.path.join(my_dir, 'upload.py')
# Adds Google Mock discussion group to the cc line if it's not there
# already.
upload_py_argv = [upload_py_path]
found_cc_flag = False
for arg in sys.argv[1:]:
if arg.startswith(CC_FLAG):
found_cc_flag = True
cc_line = arg[len(CC_FLAG):]
cc_list = [addr for addr in cc_line.split(',') if addr]
if GMOCK_GROUP not in cc_list:
cc_list.append(GMOCK_GROUP)
upload_py_argv.append(CC_FLAG + ','.join(cc_list))
else:
upload_py_argv.append(arg)
if not found_cc_flag:
upload_py_argv.append(CC_FLAG + GMOCK_GROUP)
# Invokes upload.py with the modified command line flags.
os.execv(upload_py_path, upload_py_argv)
if __name__ == '__main__':
main()
googlemock/src/gmock-all.cc 0 → 100644
View file @ ecf94595
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
//
// Google C++ Mocking Framework (Google Mock)
//
// This file #includes all Google Mock implementation .cc files. The
// purpose is to allow a user to build Google Mock by compiling this
// file alone.
// This line ensures that gmock.h can be compiled on its own, even
// when it's fused.
#include "gmock/gmock.h"
// The following lines pull in the real gmock *.cc files.
#include "src/gmock-cardinalities.cc"
#include "src/gmock-internal-utils.cc"
#include "src/gmock-matchers.cc"
#include "src/gmock-spec-builders.cc"
#include "src/gmock.cc"
googlemock/src/gmock-cardinalities.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements cardinalities.
#include "gmock/gmock-cardinalities.h"
#include <limits.h>
#include <ostream> // NOLINT
#include <sstream>
#include <string>
#include "gmock/internal/gmock-internal-utils.h"
#include "gtest/gtest.h"
namespace testing {
namespace {
// Implements the Between(m, n) cardinality.
class BetweenCardinalityImpl : public CardinalityInterface {
public:
BetweenCardinalityImpl(int min, int max)
: min_(min >= 0 ? min : 0),
max_(max >= min_ ? max : min_) {
std::stringstream ss;
if (min < 0) {
ss << "The invocation lower bound must be >= 0, "
<< "but is actually " << min << ".";
internal::Expect(false, __FILE__, __LINE__, ss.str());
} else if (max < 0) {
ss << "The invocation upper bound must be >= 0, "
<< "but is actually " << max << ".";
internal::Expect(false, __FILE__, __LINE__, ss.str());
} else if (min > max) {
ss << "The invocation upper bound (" << max
<< ") must be >= the invocation lower bound (" << min
<< ").";
internal::Expect(false, __FILE__, __LINE__, ss.str());
}
}
// Conservative estimate on the lower/upper bound of the number of
// calls allowed.
virtual int ConservativeLowerBound() const { return min_; }
virtual int ConservativeUpperBound() const { return max_; }
virtual bool IsSatisfiedByCallCount(int call_count) const {
return min_ <= call_count && call_count <= max_;
}
virtual bool IsSaturatedByCallCount(int call_count) const {
return call_count >= max_;
}
virtual void DescribeTo(::std::ostream* os) const;
private:
const int min_;
const int max_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(BetweenCardinalityImpl);
};
// Formats "n times" in a human-friendly way.
inline internal::string FormatTimes(int n) {
if (n == 1) {
return "once";
} else if (n == 2) {
return "twice";
} else {
std::stringstream ss;
ss << n << " times";
return ss.str();
}
}
// Describes the Between(m, n) cardinality in human-friendly text.
void BetweenCardinalityImpl::DescribeTo(::std::ostream* os) const {
if (min_ == 0) {
if (max_ == 0) {
*os << "never called";
} else if (max_ == INT_MAX) {
*os << "called any number of times";
} else {
*os << "called at most " << FormatTimes(max_);
}
} else if (min_ == max_) {
*os << "called " << FormatTimes(min_);
} else if (max_ == INT_MAX) {
*os << "called at least " << FormatTimes(min_);
} else {
// 0 < min_ < max_ < INT_MAX
*os << "called between " << min_ << " and " << max_ << " times";
}
}
} // Unnamed namespace
// Describes the given call count to an ostream.
void Cardinality::DescribeActualCallCountTo(int actual_call_count,
::std::ostream* os) {
if (actual_call_count > 0) {
*os << "called " << FormatTimes(actual_call_count);
} else {
*os << "never called";
}
}
// Creates a cardinality that allows at least n calls.
GTEST_API_ Cardinality AtLeast(int n) { return Between(n, INT_MAX); }
// Creates a cardinality that allows at most n calls.
GTEST_API_ Cardinality AtMost(int n) { return Between(0, n); }
// Creates a cardinality that allows any number of calls.
GTEST_API_ Cardinality AnyNumber() { return AtLeast(0); }
// Creates a cardinality that allows between min and max calls.
GTEST_API_ Cardinality Between(int min, int max) {
return Cardinality(new BetweenCardinalityImpl(min, max));
}
// Creates a cardinality that allows exactly n calls.
GTEST_API_ Cardinality Exactly(int n) { return Between(n, n); }
} // namespace testing
googlemock/src/gmock-internal-utils.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file defines some utilities useful for implementing Google
// Mock. They are subject to change without notice, so please DO NOT
// USE THEM IN USER CODE.
#include "gmock/internal/gmock-internal-utils.h"
#include <ctype.h>
#include <ostream> // NOLINT
#include <string>
#include "gmock/gmock.h"
#include "gmock/internal/gmock-port.h"
#include "gtest/gtest.h"
namespace testing {
namespace internal {
// Converts an identifier name to a space-separated list of lower-case
// words. Each maximum substring of the form [A-Za-z][a-z]*|\d+ is
// treated as one word. For example, both "FooBar123" and
// "foo_bar_123" are converted to "foo bar 123".
GTEST_API_ string ConvertIdentifierNameToWords(const char* id_name) {
string result;
char prev_char = '\0';
for (const char* p = id_name; *p != '\0'; prev_char = *(p++)) {
// We don't care about the current locale as the input is
// guaranteed to be a valid C++ identifier name.
const bool starts_new_word = IsUpper(*p) ||
(!IsAlpha(prev_char) && IsLower(*p)) ||
(!IsDigit(prev_char) && IsDigit(*p));
if (IsAlNum(*p)) {
if (starts_new_word && result != "")
result += ' ';
result += ToLower(*p);
}
}
return result;
}
// This class reports Google Mock failures as Google Test failures. A
// user can define another class in a similar fashion if he intends to
// use Google Mock with a testing framework other than Google Test.
class GoogleTestFailureReporter : public FailureReporterInterface {
public:
virtual void ReportFailure(FailureType type, const char* file, int line,
const string& message) {
AssertHelper(type == kFatal ?
TestPartResult::kFatalFailure :
TestPartResult::kNonFatalFailure,
file,
line,
message.c_str()) = Message();
if (type == kFatal) {
posix::Abort();
}
}
};
// Returns the global failure reporter. Will create a
// GoogleTestFailureReporter and return it the first time called.
GTEST_API_ FailureReporterInterface* GetFailureReporter() {
// Points to the global failure reporter used by Google Mock. gcc
// guarantees that the following use of failure_reporter is
// thread-safe. We may need to add additional synchronization to
// protect failure_reporter if we port Google Mock to other
// compilers.
static FailureReporterInterface* const failure_reporter =
new GoogleTestFailureReporter();
return failure_reporter;
}
// Protects global resources (stdout in particular) used by Log().
static GTEST_DEFINE_STATIC_MUTEX_(g_log_mutex);
// Returns true iff a log with the given severity is visible according
// to the --gmock_verbose flag.
GTEST_API_ bool LogIsVisible(LogSeverity severity) {
if (GMOCK_FLAG(verbose) == kInfoVerbosity) {
// Always show the log if --gmock_verbose=info.
return true;
} else if (GMOCK_FLAG(verbose) == kErrorVerbosity) {
// Always hide it if --gmock_verbose=error.
return false;
} else {
// If --gmock_verbose is neither "info" nor "error", we treat it
// as "warning" (its default value).
return severity == kWarning;
}
}
// Prints the given message to stdout iff 'severity' >= the level
// specified by the --gmock_verbose flag. If stack_frames_to_skip >=
// 0, also prints the stack trace excluding the top
// stack_frames_to_skip frames. In opt mode, any positive
// stack_frames_to_skip is treated as 0, since we don't know which
// function calls will be inlined by the compiler and need to be
// conservative.
GTEST_API_ void Log(LogSeverity severity,
const string& message,
int stack_frames_to_skip) {
if (!LogIsVisible(severity))
return;
// Ensures that logs from different threads don't interleave.
MutexLock l(&g_log_mutex);
// "using ::std::cout;" doesn't work with Symbian's STLport, where cout is a
// macro.
if (severity == kWarning) {
// Prints a GMOCK WARNING marker to make the warnings easily searchable.
std::cout << "\nGMOCK WARNING:";
}
// Pre-pends a new-line to message if it doesn't start with one.
if (message.empty() || message[0] != '\n') {
std::cout << "\n";
}
std::cout << message;
if (stack_frames_to_skip >= 0) {
#ifdef NDEBUG
// In opt mode, we have to be conservative and skip no stack frame.
const int actual_to_skip = 0;
#else
// In dbg mode, we can do what the caller tell us to do (plus one
// for skipping this function's stack frame).
const int actual_to_skip = stack_frames_to_skip + 1;
#endif // NDEBUG
// Appends a new-line to message if it doesn't end with one.
if (!message.empty() && *message.rbegin() != '\n') {
std::cout << "\n";
}
std::cout << "Stack trace:\n"
<< ::testing::internal::GetCurrentOsStackTraceExceptTop(
::testing::UnitTest::GetInstance(), actual_to_skip);
}
std::cout << ::std::flush;
}
} // namespace internal
} // namespace testing
googlemock/src/gmock-matchers.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements Matcher<const string&>, Matcher<string>, and
// utilities for defining matchers.
#include "gmock/gmock-matchers.h"
#include "gmock/gmock-generated-matchers.h"
#include <string.h>
#include <sstream>
#include <string>
namespace testing {
// Constructs a matcher that matches a const string& whose value is
// equal to s.
Matcher<const internal::string&>::Matcher(const internal::string& s) {
*this = Eq(s);
}
// Constructs a matcher that matches a const string& whose value is
// equal to s.
Matcher<const internal::string&>::Matcher(const char* s) {
*this = Eq(internal::string(s));
}
// Constructs a matcher that matches a string whose value is equal to s.
Matcher<internal::string>::Matcher(const internal::string& s) { *this = Eq(s); }
// Constructs a matcher that matches a string whose value is equal to s.
Matcher<internal::string>::Matcher(const char* s) {
*this = Eq(internal::string(s));
}
#if GTEST_HAS_STRING_PIECE_
// Constructs a matcher that matches a const StringPiece& whose value is
// equal to s.
Matcher<const StringPiece&>::Matcher(const internal::string& s) {
*this = Eq(s);
}
// Constructs a matcher that matches a const StringPiece& whose value is
// equal to s.
Matcher<const StringPiece&>::Matcher(const char* s) {
*this = Eq(internal::string(s));
}
// Constructs a matcher that matches a const StringPiece& whose value is
// equal to s.
Matcher<const StringPiece&>::Matcher(StringPiece s) {
*this = Eq(s.ToString());
}
// Constructs a matcher that matches a StringPiece whose value is equal to s.
Matcher<StringPiece>::Matcher(const internal::string& s) {
*this = Eq(s);
}
// Constructs a matcher that matches a StringPiece whose value is equal to s.
Matcher<StringPiece>::Matcher(const char* s) {
*this = Eq(internal::string(s));
}
// Constructs a matcher that matches a StringPiece whose value is equal to s.
Matcher<StringPiece>::Matcher(StringPiece s) {
*this = Eq(s.ToString());
}
#endif // GTEST_HAS_STRING_PIECE_
namespace internal {
// Joins a vector of strings as if they are fields of a tuple; returns
// the joined string.
GTEST_API_ string JoinAsTuple(const Strings& fields) {
switch (fields.size()) {
case 0:
return "";
case 1:
return fields[0];
default:
string result = "(" + fields[0];
for (size_t i = 1; i < fields.size(); i++) {
result += ", ";
result += fields[i];
}
result += ")";
return result;
}
}
// Returns the description for a matcher defined using the MATCHER*()
// macro where the user-supplied description string is "", if
// 'negation' is false; otherwise returns the description of the
// negation of the matcher. 'param_values' contains a list of strings
// that are the print-out of the matcher's parameters.
GTEST_API_ string FormatMatcherDescription(bool negation,
const char* matcher_name,
const Strings& param_values) {
string result = ConvertIdentifierNameToWords(matcher_name);
if (param_values.size() >= 1)
result += " " + JoinAsTuple(param_values);
return negation ? "not (" + result + ")" : result;
}
// FindMaxBipartiteMatching and its helper class.
//
// Uses the well-known Ford-Fulkerson max flow method to find a maximum
// bipartite matching. Flow is considered to be from left to right.
// There is an implicit source node that is connected to all of the left
// nodes, and an implicit sink node that is connected to all of the
// right nodes. All edges have unit capacity.
//
// Neither the flow graph nor the residual flow graph are represented
// explicitly. Instead, they are implied by the information in 'graph' and
// a vector<int> called 'left_' whose elements are initialized to the
// value kUnused. This represents the initial state of the algorithm,
// where the flow graph is empty, and the residual flow graph has the
// following edges:
// - An edge from source to each left_ node
// - An edge from each right_ node to sink
// - An edge from each left_ node to each right_ node, if the
// corresponding edge exists in 'graph'.
//
// When the TryAugment() method adds a flow, it sets left_[l] = r for some
// nodes l and r. This induces the following changes:
// - The edges (source, l), (l, r), and (r, sink) are added to the
// flow graph.
// - The same three edges are removed from the residual flow graph.
// - The reverse edges (l, source), (r, l), and (sink, r) are added
// to the residual flow graph, which is a directional graph
// representing unused flow capacity.
//
// When the method augments a flow (moving left_[l] from some r1 to some
// other r2), this can be thought of as "undoing" the above steps with
// respect to r1 and "redoing" them with respect to r2.
//
// It bears repeating that the flow graph and residual flow graph are
// never represented explicitly, but can be derived by looking at the
// information in 'graph' and in left_.
//
// As an optimization, there is a second vector<int> called right_ which
// does not provide any new information. Instead, it enables more
// efficient queries about edges entering or leaving the right-side nodes
// of the flow or residual flow graphs. The following invariants are
// maintained:
//
// left[l] == kUnused or right[left[l]] == l
// right[r] == kUnused or left[right[r]] == r
//
// . [ source ] .
// . ||| .
// . ||| .
// . ||\--> left[0]=1 ---\ right[0]=-1 ----\ .
// . || | | .
// . |\---> left[1]=-1 \--> right[1]=0 ---\| .
// . | || .
// . \----> left[2]=2 ------> right[2]=2 --\|| .
// . ||| .
// . elements matchers vvv .
// . [ sink ] .
//
// See Also:
// [1] Cormen, et al (2001). "Section 26.2: The Ford-Fulkerson method".
// "Introduction to Algorithms (Second ed.)", pp. 651-664.
// [2] "Ford-Fulkerson algorithm", Wikipedia,
// 'http://en.wikipedia.org/wiki/Ford%E2%80%93Fulkerson_algorithm'
class MaxBipartiteMatchState {
public:
explicit MaxBipartiteMatchState(const MatchMatrix& graph)
: graph_(&graph),
left_(graph_->LhsSize(), kUnused),
right_(graph_->RhsSize(), kUnused) {
}
// Returns the edges of a maximal match, each in the form {left, right}.
ElementMatcherPairs Compute() {
// 'seen' is used for path finding { 0: unseen, 1: seen }.
::std::vector<char> seen;
// Searches the residual flow graph for a path from each left node to
// the sink in the residual flow graph, and if one is found, add flow
// to the graph. It's okay to search through the left nodes once. The
// edge from the implicit source node to each previously-visited left
// node will have flow if that left node has any path to the sink
// whatsoever. Subsequent augmentations can only add flow to the
// network, and cannot take away that previous flow unit from the source.
// Since the source-to-left edge can only carry one flow unit (or,
// each element can be matched to only one matcher), there is no need
// to visit the left nodes more than once looking for augmented paths.
// The flow is known to be possible or impossible by looking at the
// node once.
for (size_t ilhs = 0; ilhs < graph_->LhsSize(); ++ilhs) {
// Reset the path-marking vector and try to find a path from
// source to sink starting at the left_[ilhs] node.
GTEST_CHECK_(left_[ilhs] == kUnused)
<< "ilhs: " << ilhs << ", left_[ilhs]: " << left_[ilhs];
// 'seen' initialized to 'graph_->RhsSize()' copies of 0.
seen.assign(graph_->RhsSize(), 0);
TryAugment(ilhs, &seen);
}
ElementMatcherPairs result;
for (size_t ilhs = 0; ilhs < left_.size(); ++ilhs) {
size_t irhs = left_[ilhs];
if (irhs == kUnused) continue;
result.push_back(ElementMatcherPair(ilhs, irhs));
}
return result;
}
private:
static const size_t kUnused = static_cast<size_t>(-1);
// Perform a depth-first search from left node ilhs to the sink. If a
// path is found, flow is added to the network by linking the left and
// right vector elements corresponding each segment of the path.
// Returns true if a path to sink was found, which means that a unit of
// flow was added to the network. The 'seen' vector elements correspond
// to right nodes and are marked to eliminate cycles from the search.
//
// Left nodes will only be explored at most once because they
// are accessible from at most one right node in the residual flow
// graph.
//
// Note that left_[ilhs] is the only element of left_ that TryAugment will
// potentially transition from kUnused to another value. Any other
// left_ element holding kUnused before TryAugment will be holding it
// when TryAugment returns.
//
bool TryAugment(size_t ilhs, ::std::vector<char>* seen) {
for (size_t irhs = 0; irhs < graph_->RhsSize(); ++irhs) {
if ((*seen)[irhs])
continue;
if (!graph_->HasEdge(ilhs, irhs))
continue;
// There's an available edge from ilhs to irhs.
(*seen)[irhs] = 1;
// Next a search is performed to determine whether
// this edge is a dead end or leads to the sink.
//
// right_[irhs] == kUnused means that there is residual flow from
// right node irhs to the sink, so we can use that to finish this
// flow path and return success.
//
// Otherwise there is residual flow to some ilhs. We push flow
// along that path and call ourselves recursively to see if this
// ultimately leads to sink.
if (right_[irhs] == kUnused || TryAugment(right_[irhs], seen)) {
// Add flow from left_[ilhs] to right_[irhs].
left_[ilhs] = irhs;
right_[irhs] = ilhs;
return true;
}
}
return false;
}
const MatchMatrix* graph_; // not owned
// Each element of the left_ vector represents a left hand side node
// (i.e. an element) and each element of right_ is a right hand side
// node (i.e. a matcher). The values in the left_ vector indicate
// outflow from that node to a node on the the right_ side. The values
// in the right_ indicate inflow, and specify which left_ node is
// feeding that right_ node, if any. For example, left_[3] == 1 means
// there's a flow from element #3 to matcher #1. Such a flow would also
// be redundantly represented in the right_ vector as right_[1] == 3.
// Elements of left_ and right_ are either kUnused or mutually
// referent. Mutually referent means that left_[right_[i]] = i and
// right_[left_[i]] = i.
::std::vector<size_t> left_;
::std::vector<size_t> right_;
GTEST_DISALLOW_ASSIGN_(MaxBipartiteMatchState);
};
const size_t MaxBipartiteMatchState::kUnused;
GTEST_API_ ElementMatcherPairs
FindMaxBipartiteMatching(const MatchMatrix& g) {
return MaxBipartiteMatchState(g).Compute();
}
static void LogElementMatcherPairVec(const ElementMatcherPairs& pairs,
::std::ostream* stream) {
typedef ElementMatcherPairs::const_iterator Iter;
::std::ostream& os = *stream;
os << "{";
const char *sep = "";
for (Iter it = pairs.begin(); it != pairs.end(); ++it) {
os << sep << "\n ("
<< "element #" << it->first << ", "
<< "matcher #" << it->second << ")";
sep = ",";
}
os << "\n}";
}
// Tries to find a pairing, and explains the result.
GTEST_API_ bool FindPairing(const MatchMatrix& matrix,
MatchResultListener* listener) {
ElementMatcherPairs matches = FindMaxBipartiteMatching(matrix);
size_t max_flow = matches.size();
bool result = (max_flow == matrix.RhsSize());
if (!result) {
if (listener->IsInterested()) {
*listener << "where no permutation of the elements can "
"satisfy all matchers, and the closest match is "
<< max_flow << " of " << matrix.RhsSize()
<< " matchers with the pairings:\n";
LogElementMatcherPairVec(matches, listener->stream());
}
return false;
}
if (matches.size() > 1) {
if (listener->IsInterested()) {
const char *sep = "where:\n";
for (size_t mi = 0; mi < matches.size(); ++mi) {
*listener << sep << " - element #" << matches[mi].first
<< " is matched by matcher #" << matches[mi].second;
sep = ",\n";
}
}
}
return true;
}
bool MatchMatrix::NextGraph() {
for (size_t ilhs = 0; ilhs < LhsSize(); ++ilhs) {
for (size_t irhs = 0; irhs < RhsSize(); ++irhs) {
char& b = matched_[SpaceIndex(ilhs, irhs)];
if (!b) {
b = 1;
return true;
}
b = 0;
}
}
return false;
}
void MatchMatrix::Randomize() {
for (size_t ilhs = 0; ilhs < LhsSize(); ++ilhs) {
for (size_t irhs = 0; irhs < RhsSize(); ++irhs) {
char& b = matched_[SpaceIndex(ilhs, irhs)];
b = static_cast<char>(rand() & 1); // NOLINT
}
}
}
string MatchMatrix::DebugString() const {
::std::stringstream ss;
const char *sep = "";
for (size_t i = 0; i < LhsSize(); ++i) {
ss << sep;
for (size_t j = 0; j < RhsSize(); ++j) {
ss << HasEdge(i, j);
}
sep = ";";
}
return ss.str();
}
void UnorderedElementsAreMatcherImplBase::DescribeToImpl(
::std::ostream* os) const {
if (matcher_describers_.empty()) {
*os << "is empty";
return;
}
if (matcher_describers_.size() == 1) {
*os << "has " << Elements(1) << " and that element ";
matcher_describers_[0]->DescribeTo(os);
return;
}
*os << "has " << Elements(matcher_describers_.size())
<< " and there exists some permutation of elements such that:\n";
const char* sep = "";
for (size_t i = 0; i != matcher_describers_.size(); ++i) {
*os << sep << " - element #" << i << " ";
matcher_describers_[i]->DescribeTo(os);
sep = ", and\n";
}
}
void UnorderedElementsAreMatcherImplBase::DescribeNegationToImpl(
::std::ostream* os) const {
if (matcher_describers_.empty()) {
*os << "isn't empty";
return;
}
if (matcher_describers_.size() == 1) {
*os << "doesn't have " << Elements(1)
<< ", or has " << Elements(1) << " that ";
matcher_describers_[0]->DescribeNegationTo(os);
return;
}
*os << "doesn't have " << Elements(matcher_describers_.size())
<< ", or there exists no permutation of elements such that:\n";
const char* sep = "";
for (size_t i = 0; i != matcher_describers_.size(); ++i) {
*os << sep << " - element #" << i << " ";
matcher_describers_[i]->DescribeTo(os);
sep = ", and\n";
}
}
// Checks that all matchers match at least one element, and that all
// elements match at least one matcher. This enables faster matching
// and better error reporting.
// Returns false, writing an explanation to 'listener', if and only
// if the success criteria are not met.
bool UnorderedElementsAreMatcherImplBase::
VerifyAllElementsAndMatchersAreMatched(
const ::std::vector<string>& element_printouts,
const MatchMatrix& matrix,
MatchResultListener* listener) const {
bool result = true;
::std::vector<char> element_matched(matrix.LhsSize(), 0);
::std::vector<char> matcher_matched(matrix.RhsSize(), 0);
for (size_t ilhs = 0; ilhs < matrix.LhsSize(); ilhs++) {
for (size_t irhs = 0; irhs < matrix.RhsSize(); irhs++) {
char matched = matrix.HasEdge(ilhs, irhs);
element_matched[ilhs] |= matched;
matcher_matched[irhs] |= matched;
}
}
{
const char* sep =
"where the following matchers don't match any elements:\n";
for (size_t mi = 0; mi < matcher_matched.size(); ++mi) {
if (matcher_matched[mi])
continue;
result = false;
if (listener->IsInterested()) {
*listener << sep << "matcher #" << mi << ": ";
matcher_describers_[mi]->DescribeTo(listener->stream());
sep = ",\n";
}
}
}
{
const char* sep =
"where the following elements don't match any matchers:\n";
const char* outer_sep = "";
if (!result) {
outer_sep = "\nand ";
}
for (size_t ei = 0; ei < element_matched.size(); ++ei) {
if (element_matched[ei])
continue;
result = false;
if (listener->IsInterested()) {
*listener << outer_sep << sep << "element #" << ei << ": "
<< element_printouts[ei];
sep = ",\n";
outer_sep = "";
}
}
}
return result;
}
} // namespace internal
} // namespace testing
googlemock/src/gmock-spec-builders.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements the spec builder syntax (ON_CALL and
// EXPECT_CALL).
#include "gmock/gmock-spec-builders.h"
#include <stdlib.h>
#include <iostream> // NOLINT
#include <map>
#include <set>
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#if GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC
# include <unistd.h> // NOLINT
#endif
namespace testing {
namespace internal {
// Protects the mock object registry (in class Mock), all function
// mockers, and all expectations.
GTEST_API_ GTEST_DEFINE_STATIC_MUTEX_(g_gmock_mutex);
// Logs a message including file and line number information.
GTEST_API_ void LogWithLocation(testing::internal::LogSeverity severity,
const char* file, int line,
const string& message) {
::std::ostringstream s;
s << file << ":" << line << ": " << message << ::std::endl;
Log(severity, s.str(), 0);
}
// Constructs an ExpectationBase object.
ExpectationBase::ExpectationBase(const char* a_file,
int a_line,
const string& a_source_text)
: file_(a_file),
line_(a_line),
source_text_(a_source_text),
cardinality_specified_(false),
cardinality_(Exactly(1)),
call_count_(0),
retired_(false),
extra_matcher_specified_(false),
repeated_action_specified_(false),
retires_on_saturation_(false),
last_clause_(kNone),
action_count_checked_(false) {}
// Destructs an ExpectationBase object.
ExpectationBase::~ExpectationBase() {}
// Explicitly specifies the cardinality of this expectation. Used by
// the subclasses to implement the .Times() clause.
void ExpectationBase::SpecifyCardinality(const Cardinality& a_cardinality) {
cardinality_specified_ = true;
cardinality_ = a_cardinality;
}
// Retires all pre-requisites of this expectation.
void ExpectationBase::RetireAllPreRequisites()
GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
if (is_retired()) {
// We can take this short-cut as we never retire an expectation
// until we have retired all its pre-requisites.
return;
}
for (ExpectationSet::const_iterator it = immediate_prerequisites_.begin();
it != immediate_prerequisites_.end(); ++it) {
ExpectationBase* const prerequisite = it->expectation_base().get();
if (!prerequisite->is_retired()) {
prerequisite->RetireAllPreRequisites();
prerequisite->Retire();
}
}
}
// Returns true iff all pre-requisites of this expectation have been
// satisfied.
bool ExpectationBase::AllPrerequisitesAreSatisfied() const
GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
g_gmock_mutex.AssertHeld();
for (ExpectationSet::const_iterator it = immediate_prerequisites_.begin();
it != immediate_prerequisites_.end(); ++it) {
if (!(it->expectation_base()->IsSatisfied()) ||
!(it->expectation_base()->AllPrerequisitesAreSatisfied()))
return false;
}
return true;
}
// Adds unsatisfied pre-requisites of this expectation to 'result'.
void ExpectationBase::FindUnsatisfiedPrerequisites(ExpectationSet* result) const
GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
g_gmock_mutex.AssertHeld();
for (ExpectationSet::const_iterator it = immediate_prerequisites_.begin();
it != immediate_prerequisites_.end(); ++it) {
if (it->expectation_base()->IsSatisfied()) {
// If *it is satisfied and has a call count of 0, some of its
// pre-requisites may not be satisfied yet.
if (it->expectation_base()->call_count_ == 0) {
it->expectation_base()->FindUnsatisfiedPrerequisites(result);
}
} else {
// Now that we know *it is unsatisfied, we are not so interested
// in whether its pre-requisites are satisfied. Therefore we
// don't recursively call FindUnsatisfiedPrerequisites() here.
*result += *it;
}
}
}
// Describes how many times a function call matching this
// expectation has occurred.
void ExpectationBase::DescribeCallCountTo(::std::ostream* os) const
GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
g_gmock_mutex.AssertHeld();
// Describes how many times the function is expected to be called.
*os << " Expected: to be ";
cardinality().DescribeTo(os);
*os << "\n Actual: ";
Cardinality::DescribeActualCallCountTo(call_count(), os);
// Describes the state of the expectation (e.g. is it satisfied?
// is it active?).
*os << " - " << (IsOverSaturated() ? "over-saturated" :
IsSaturated() ? "saturated" :
IsSatisfied() ? "satisfied" : "unsatisfied")
<< " and "
<< (is_retired() ? "retired" : "active");
}
// Checks the action count (i.e. the number of WillOnce() and
// WillRepeatedly() clauses) against the cardinality if this hasn't
// been done before. Prints a warning if there are too many or too
// few actions.
void ExpectationBase::CheckActionCountIfNotDone() const
GTEST_LOCK_EXCLUDED_(mutex_) {
bool should_check = false;
{
MutexLock l(&mutex_);
if (!action_count_checked_) {
action_count_checked_ = true;
should_check = true;
}
}
if (should_check) {
if (!cardinality_specified_) {
// The cardinality was inferred - no need to check the action
// count against it.
return;
}
// The cardinality was explicitly specified.
const int action_count = static_cast<int>(untyped_actions_.size());
const int upper_bound = cardinality().ConservativeUpperBound();
const int lower_bound = cardinality().ConservativeLowerBound();
bool too_many; // True if there are too many actions, or false
// if there are too few.
if (action_count > upper_bound ||
(action_count == upper_bound && repeated_action_specified_)) {
too_many = true;
} else if (0 < action_count && action_count < lower_bound &&
!repeated_action_specified_) {
too_many = false;
} else {
return;
}
::std::stringstream ss;
DescribeLocationTo(&ss);
ss << "Too " << (too_many ? "many" : "few")
<< " actions specified in " << source_text() << "...\n"
<< "Expected to be ";
cardinality().DescribeTo(&ss);
ss << ", but has " << (too_many ? "" : "only ")
<< action_count << " WillOnce()"
<< (action_count == 1 ? "" : "s");
if (repeated_action_specified_) {
ss << " and a WillRepeatedly()";
}
ss << ".";
Log(kWarning, ss.str(), -1); // -1 means "don't print stack trace".
}
}
// Implements the .Times() clause.
void ExpectationBase::UntypedTimes(const Cardinality& a_cardinality) {
if (last_clause_ == kTimes) {
ExpectSpecProperty(false,
".Times() cannot appear "
"more than once in an EXPECT_CALL().");
} else {
ExpectSpecProperty(last_clause_ < kTimes,
".Times() cannot appear after "
".InSequence(), .WillOnce(), .WillRepeatedly(), "
"or .RetiresOnSaturation().");
}
last_clause_ = kTimes;
SpecifyCardinality(a_cardinality);
}
// Points to the implicit sequence introduced by a living InSequence
// object (if any) in the current thread or NULL.
GTEST_API_ ThreadLocal<Sequence*> g_gmock_implicit_sequence;
// Reports an uninteresting call (whose description is in msg) in the
// manner specified by 'reaction'.
void ReportUninterestingCall(CallReaction reaction, const string& msg) {
// Include a stack trace only if --gmock_verbose=info is specified.
const int stack_frames_to_skip =
GMOCK_FLAG(verbose) == kInfoVerbosity ? 3 : -1;
switch (reaction) {
case kAllow:
Log(kInfo, msg, stack_frames_to_skip);
break;
case kWarn:
Log(kWarning,
msg +
"\nNOTE: You can safely ignore the above warning unless this "
"call should not happen. Do not suppress it by blindly adding "
"an EXPECT_CALL() if you don't mean to enforce the call. "
"See http://code.google.com/p/googlemock/wiki/CookBook#"
"Knowing_When_to_Expect for details.\n",
stack_frames_to_skip);
break;
default: // FAIL
Expect(false, NULL, -1, msg);
}
}
UntypedFunctionMockerBase::UntypedFunctionMockerBase()
: mock_obj_(NULL), name_("") {}
UntypedFunctionMockerBase::~UntypedFunctionMockerBase() {}
// Sets the mock object this mock method belongs to, and registers
// this information in the global mock registry. Will be called
// whenever an EXPECT_CALL() or ON_CALL() is executed on this mock
// method.
void UntypedFunctionMockerBase::RegisterOwner(const void* mock_obj)
GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
{
MutexLock l(&g_gmock_mutex);
mock_obj_ = mock_obj;
}
Mock::Register(mock_obj, this);
}
// Sets the mock object this mock method belongs to, and sets the name
// of the mock function. Will be called upon each invocation of this
// mock function.
void UntypedFunctionMockerBase::SetOwnerAndName(const void* mock_obj,
const char* name)
GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
// We protect name_ under g_gmock_mutex in case this mock function
// is called from two threads concurrently.
MutexLock l(&g_gmock_mutex);
mock_obj_ = mock_obj;
name_ = name;
}
// Returns the name of the function being mocked. Must be called
// after RegisterOwner() or SetOwnerAndName() has been called.
const void* UntypedFunctionMockerBase::MockObject() const
GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
const void* mock_obj;
{
// We protect mock_obj_ under g_gmock_mutex in case this mock
// function is called from two threads concurrently.
MutexLock l(&g_gmock_mutex);
Assert(mock_obj_ != NULL, __FILE__, __LINE__,
"MockObject() must not be called before RegisterOwner() or "
"SetOwnerAndName() has been called.");
mock_obj = mock_obj_;
}
return mock_obj;
}
// Returns the name of this mock method. Must be called after
// SetOwnerAndName() has been called.
const char* UntypedFunctionMockerBase::Name() const
GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
const char* name;
{
// We protect name_ under g_gmock_mutex in case this mock
// function is called from two threads concurrently.
MutexLock l(&g_gmock_mutex);
Assert(name_ != NULL, __FILE__, __LINE__,
"Name() must not be called before SetOwnerAndName() has "
"been called.");
name = name_;
}
return name;
}
// Calculates the result of invoking this mock function with the given
// arguments, prints it, and returns it. The caller is responsible
// for deleting the result.
UntypedActionResultHolderBase*
UntypedFunctionMockerBase::UntypedInvokeWith(const void* const untyped_args)
GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
if (untyped_expectations_.size() == 0) {
// No expectation is set on this mock method - we have an
// uninteresting call.
// We must get Google Mock's reaction on uninteresting calls
// made on this mock object BEFORE performing the action,
// because the action may DELETE the mock object and make the
// following expression meaningless.
const CallReaction reaction =
Mock::GetReactionOnUninterestingCalls(MockObject());
// True iff we need to print this call's arguments and return
// value. This definition must be kept in sync with
// the behavior of ReportUninterestingCall().
const bool need_to_report_uninteresting_call =
// If the user allows this uninteresting call, we print it
// only when he wants informational messages.
reaction == kAllow ? LogIsVisible(kInfo) :
// If the user wants this to be a warning, we print it only
// when he wants to see warnings.
reaction == kWarn ? LogIsVisible(kWarning) :
// Otherwise, the user wants this to be an error, and we
// should always print detailed information in the error.
true;
if (!need_to_report_uninteresting_call) {
// Perform the action without printing the call information.
return this->UntypedPerformDefaultAction(untyped_args, "");
}
// Warns about the uninteresting call.
::std::stringstream ss;
this->UntypedDescribeUninterestingCall(untyped_args, &ss);
// Calculates the function result.
UntypedActionResultHolderBase* const result =
this->UntypedPerformDefaultAction(untyped_args, ss.str());
// Prints the function result.
if (result != NULL)
result->PrintAsActionResult(&ss);
ReportUninterestingCall(reaction, ss.str());
return result;
}
bool is_excessive = false;
::std::stringstream ss;
::std::stringstream why;
::std::stringstream loc;
const void* untyped_action = NULL;
// The UntypedFindMatchingExpectation() function acquires and
// releases g_gmock_mutex.
const ExpectationBase* const untyped_expectation =
this->UntypedFindMatchingExpectation(
untyped_args, &untyped_action, &is_excessive,
&ss, &why);
const bool found = untyped_expectation != NULL;
// True iff we need to print the call's arguments and return value.
// This definition must be kept in sync with the uses of Expect()
// and Log() in this function.
const bool need_to_report_call =
!found || is_excessive || LogIsVisible(kInfo);
if (!need_to_report_call) {
// Perform the action without printing the call information.
return
untyped_action == NULL ?
this->UntypedPerformDefaultAction(untyped_args, "") :
this->UntypedPerformAction(untyped_action, untyped_args);
}
ss << " Function call: " << Name();
this->UntypedPrintArgs(untyped_args, &ss);
// In case the action deletes a piece of the expectation, we
// generate the message beforehand.
if (found && !is_excessive) {
untyped_expectation->DescribeLocationTo(&loc);
}
UntypedActionResultHolderBase* const result =
untyped_action == NULL ?
this->UntypedPerformDefaultAction(untyped_args, ss.str()) :
this->UntypedPerformAction(untyped_action, untyped_args);
if (result != NULL)
result->PrintAsActionResult(&ss);
ss << "\n" << why.str();
if (!found) {
// No expectation matches this call - reports a failure.
Expect(false, NULL, -1, ss.str());
} else if (is_excessive) {
// We had an upper-bound violation and the failure message is in ss.
Expect(false, untyped_expectation->file(),
untyped_expectation->line(), ss.str());
} else {
// We had an expected call and the matching expectation is
// described in ss.
Log(kInfo, loc.str() + ss.str(), 2);
}
return result;
}
// Returns an Expectation object that references and co-owns exp,
// which must be an expectation on this mock function.
Expectation UntypedFunctionMockerBase::GetHandleOf(ExpectationBase* exp) {
for (UntypedExpectations::const_iterator it =
untyped_expectations_.begin();
it != untyped_expectations_.end(); ++it) {
if (it->get() == exp) {
return Expectation(*it);
}
}
Assert(false, __FILE__, __LINE__, "Cannot find expectation.");
return Expectation();
// The above statement is just to make the code compile, and will
// never be executed.
}
// Verifies that all expectations on this mock function have been
// satisfied. Reports one or more Google Test non-fatal failures
// and returns false if not.
bool UntypedFunctionMockerBase::VerifyAndClearExpectationsLocked()
GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
g_gmock_mutex.AssertHeld();
bool expectations_met = true;
for (UntypedExpectations::const_iterator it =
untyped_expectations_.begin();
it != untyped_expectations_.end(); ++it) {
ExpectationBase* const untyped_expectation = it->get();
if (untyped_expectation->IsOverSaturated()) {
// There was an upper-bound violation. Since the error was
// already reported when it occurred, there is no need to do
// anything here.
expectations_met = false;
} else if (!untyped_expectation->IsSatisfied()) {
expectations_met = false;
::std::stringstream ss;
ss << "Actual function call count doesn't match "
<< untyped_expectation->source_text() << "...\n";
// No need to show the source file location of the expectation
// in the description, as the Expect() call that follows already
// takes care of it.
untyped_expectation->MaybeDescribeExtraMatcherTo(&ss);
untyped_expectation->DescribeCallCountTo(&ss);
Expect(false, untyped_expectation->file(),
untyped_expectation->line(), ss.str());
}
}
// Deleting our expectations may trigger other mock objects to be deleted, for
// example if an action contains a reference counted smart pointer to that
// mock object, and that is the last reference. So if we delete our
// expectations within the context of the global mutex we may deadlock when
// this method is called again. Instead, make a copy of the set of
// expectations to delete, clear our set within the mutex, and then clear the
// copied set outside of it.
UntypedExpectations expectations_to_delete;
untyped_expectations_.swap(expectations_to_delete);
g_gmock_mutex.Unlock();
expectations_to_delete.clear();
g_gmock_mutex.Lock();
return expectations_met;
}
} // namespace internal
// Class Mock.
namespace {
typedef std::set<internal::UntypedFunctionMockerBase*> FunctionMockers;
// The current state of a mock object. Such information is needed for
// detecting leaked mock objects and explicitly verifying a mock's
// expectations.
struct MockObjectState {
MockObjectState()
: first_used_file(NULL), first_used_line(-1), leakable(false) {}
// Where in the source file an ON_CALL or EXPECT_CALL is first
// invoked on this mock object.
const char* first_used_file;
int first_used_line;
::std::string first_used_test_case;
::std::string first_used_test;
bool leakable; // true iff it's OK to leak the object.
FunctionMockers function_mockers; // All registered methods of the object.
};
// A global registry holding the state of all mock objects that are
// alive. A mock object is added to this registry the first time
// Mock::AllowLeak(), ON_CALL(), or EXPECT_CALL() is called on it. It
// is removed from the registry in the mock object's destructor.
class MockObjectRegistry {
public:
// Maps a mock object (identified by its address) to its state.
typedef std::map<const void*, MockObjectState> StateMap;
// This destructor will be called when a program exits, after all
// tests in it have been run. By then, there should be no mock
// object alive. Therefore we report any living object as test
// failure, unless the user explicitly asked us to ignore it.
~MockObjectRegistry() {
// "using ::std::cout;" doesn't work with Symbian's STLport, where cout is
// a macro.
if (!GMOCK_FLAG(catch_leaked_mocks))
return;
int leaked_count = 0;
for (StateMap::const_iterator it = states_.begin(); it != states_.end();
++it) {
if (it->second.leakable) // The user said it's fine to leak this object.
continue;
// TODO(wan@google.com): Print the type of the leaked object.
// This can help the user identify the leaked object.
std::cout << "\n";
const MockObjectState& state = it->second;
std::cout << internal::FormatFileLocation(state.first_used_file,
state.first_used_line);
std::cout << " ERROR: this mock object";
if (state.first_used_test != "") {
std::cout << " (used in test " << state.first_used_test_case << "."
<< state.first_used_test << ")";
}
std::cout << " should be deleted but never is. Its address is @"
<< it->first << ".";
leaked_count++;
}
if (leaked_count > 0) {
std::cout << "\nERROR: " << leaked_count
<< " leaked mock " << (leaked_count == 1 ? "object" : "objects")
<< " found at program exit.\n";
std::cout.flush();
::std::cerr.flush();
// RUN_ALL_TESTS() has already returned when this destructor is
// called. Therefore we cannot use the normal Google Test
// failure reporting mechanism.
_exit(1); // We cannot call exit() as it is not reentrant and
// may already have been called.
}
}
StateMap& states() { return states_; }
private:
StateMap states_;
};
// Protected by g_gmock_mutex.
MockObjectRegistry g_mock_object_registry;
// Maps a mock object to the reaction Google Mock should have when an
// uninteresting method is called. Protected by g_gmock_mutex.
std::map<const void*, internal::CallReaction> g_uninteresting_call_reaction;
// Sets the reaction Google Mock should have when an uninteresting
// method of the given mock object is called.
void SetReactionOnUninterestingCalls(const void* mock_obj,
internal::CallReaction reaction)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
g_uninteresting_call_reaction[mock_obj] = reaction;
}
} // namespace
// Tells Google Mock to allow uninteresting calls on the given mock
// object.
void Mock::AllowUninterestingCalls(const void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
SetReactionOnUninterestingCalls(mock_obj, internal::kAllow);
}
// Tells Google Mock to warn the user about uninteresting calls on the
// given mock object.
void Mock::WarnUninterestingCalls(const void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
SetReactionOnUninterestingCalls(mock_obj, internal::kWarn);
}
// Tells Google Mock to fail uninteresting calls on the given mock
// object.
void Mock::FailUninterestingCalls(const void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
SetReactionOnUninterestingCalls(mock_obj, internal::kFail);
}
// Tells Google Mock the given mock object is being destroyed and its
// entry in the call-reaction table should be removed.
void Mock::UnregisterCallReaction(const void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
g_uninteresting_call_reaction.erase(mock_obj);
}
// Returns the reaction Google Mock will have on uninteresting calls
// made on the given mock object.
internal::CallReaction Mock::GetReactionOnUninterestingCalls(
const void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
return (g_uninteresting_call_reaction.count(mock_obj) == 0) ?
internal::kDefault : g_uninteresting_call_reaction[mock_obj];
}
// Tells Google Mock to ignore mock_obj when checking for leaked mock
// objects.
void Mock::AllowLeak(const void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
g_mock_object_registry.states()[mock_obj].leakable = true;
}
// Verifies and clears all expectations on the given mock object. If
// the expectations aren't satisfied, generates one or more Google
// Test non-fatal failures and returns false.
bool Mock::VerifyAndClearExpectations(void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
return VerifyAndClearExpectationsLocked(mock_obj);
}
// Verifies all expectations on the given mock object and clears its
// default actions and expectations. Returns true iff the
// verification was successful.
bool Mock::VerifyAndClear(void* mock_obj)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
ClearDefaultActionsLocked(mock_obj);
return VerifyAndClearExpectationsLocked(mock_obj);
}
// Verifies and clears all expectations on the given mock object. If
// the expectations aren't satisfied, generates one or more Google
// Test non-fatal failures and returns false.
bool Mock::VerifyAndClearExpectationsLocked(void* mock_obj)
GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex) {
internal::g_gmock_mutex.AssertHeld();
if (g_mock_object_registry.states().count(mock_obj) == 0) {
// No EXPECT_CALL() was set on the given mock object.
return true;
}
// Verifies and clears the expectations on each mock method in the
// given mock object.
bool expectations_met = true;
FunctionMockers& mockers =
g_mock_object_registry.states()[mock_obj].function_mockers;
for (FunctionMockers::const_iterator it = mockers.begin();
it != mockers.end(); ++it) {
if (!(*it)->VerifyAndClearExpectationsLocked()) {
expectations_met = false;
}
}
// We don't clear the content of mockers, as they may still be
// needed by ClearDefaultActionsLocked().
return expectations_met;
}
// Registers a mock object and a mock method it owns.
void Mock::Register(const void* mock_obj,
internal::UntypedFunctionMockerBase* mocker)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
g_mock_object_registry.states()[mock_obj].function_mockers.insert(mocker);
}
// Tells Google Mock where in the source code mock_obj is used in an
// ON_CALL or EXPECT_CALL. In case mock_obj is leaked, this
// information helps the user identify which object it is.
void Mock::RegisterUseByOnCallOrExpectCall(const void* mock_obj,
const char* file, int line)
GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
internal::MutexLock l(&internal::g_gmock_mutex);
MockObjectState& state = g_mock_object_registry.states()[mock_obj];
if (state.first_used_file == NULL) {
state.first_used_file = file;
state.first_used_line = line;
const TestInfo* const test_info =
UnitTest::GetInstance()->current_test_info();
if (test_info != NULL) {
// TODO(wan@google.com): record the test case name when the
// ON_CALL or EXPECT_CALL is invoked from SetUpTestCase() or
// TearDownTestCase().
state.first_used_test_case = test_info->test_case_name();
state.first_used_test = test_info->name();
}
}
}
// Unregisters a mock method; removes the owning mock object from the
// registry when the last mock method associated with it has been
// unregistered. This is called only in the destructor of
// FunctionMockerBase.
void Mock::UnregisterLocked(internal::UntypedFunctionMockerBase* mocker)
GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex) {
internal::g_gmock_mutex.AssertHeld();
for (MockObjectRegistry::StateMap::iterator it =
g_mock_object_registry.states().begin();
it != g_mock_object_registry.states().end(); ++it) {
FunctionMockers& mockers = it->second.function_mockers;
if (mockers.erase(mocker) > 0) {
// mocker was in mockers and has been just removed.
if (mockers.empty()) {
g_mock_object_registry.states().erase(it);
}
return;
}
}
}
// Clears all ON_CALL()s set on the given mock object.
void Mock::ClearDefaultActionsLocked(void* mock_obj)
GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex) {
internal::g_gmock_mutex.AssertHeld();
if (g_mock_object_registry.states().count(mock_obj) == 0) {
// No ON_CALL() was set on the given mock object.
return;
}
// Clears the default actions for each mock method in the given mock
// object.
FunctionMockers& mockers =
g_mock_object_registry.states()[mock_obj].function_mockers;
for (FunctionMockers::const_iterator it = mockers.begin();
it != mockers.end(); ++it) {
(*it)->ClearDefaultActionsLocked();
}
// We don't clear the content of mockers, as they may still be
// needed by VerifyAndClearExpectationsLocked().
}
Expectation::Expectation() {}
Expectation::Expectation(
const internal::linked_ptr<internal::ExpectationBase>& an_expectation_base)
: expectation_base_(an_expectation_base) {}
Expectation::~Expectation() {}
// Adds an expectation to a sequence.
void Sequence::AddExpectation(const Expectation& expectation) const {
if (*last_expectation_ != expectation) {
if (last_expectation_->expectation_base() != NULL) {
expectation.expectation_base()->immediate_prerequisites_
+= *last_expectation_;
}
*last_expectation_ = expectation;
}
}
// Creates the implicit sequence if there isn't one.
InSequence::InSequence() {
if (internal::g_gmock_implicit_sequence.get() == NULL) {
internal::g_gmock_implicit_sequence.set(new Sequence);
sequence_created_ = true;
} else {
sequence_created_ = false;
}
}
// Deletes the implicit sequence if it was created by the constructor
// of this object.
InSequence::~InSequence() {
if (sequence_created_) {
delete internal::g_gmock_implicit_sequence.get();
internal::g_gmock_implicit_sequence.set(NULL);
}
}
} // namespace testing
googlemock/src/gmock.cc 0 → 100644
View file @ ecf94595
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
#include "gmock/gmock.h"
#include "gmock/internal/gmock-port.h"
namespace testing {
// TODO(wan@google.com): support using environment variables to
// control the flag values, like what Google Test does.
GMOCK_DEFINE_bool_(catch_leaked_mocks, true,
"true iff Google Mock should report leaked mock objects "
"as failures.");
GMOCK_DEFINE_string_(verbose, internal::kWarningVerbosity,
"Controls how verbose Google Mock's output is."
" Valid values:\n"
" info - prints all messages.\n"
" warning - prints warnings and errors.\n"
" error - prints errors only.");
namespace internal {
// Parses a string as a command line flag. The string should have the
// format "--gmock_flag=value". When def_optional is true, the
// "=value" part can be omitted.
//
// Returns the value of the flag, or NULL if the parsing failed.
static const char* ParseGoogleMockFlagValue(const char* str,
const char* flag,
bool def_optional) {
// str and flag must not be NULL.
if (str == NULL || flag == NULL) return NULL;
// The flag must start with "--gmock_".
const std::string flag_str = std::string("--gmock_") + flag;
const size_t flag_len = flag_str.length();
if (strncmp(str, flag_str.c_str(), flag_len) != 0) return NULL;
// Skips the flag name.
const char* flag_end = str + flag_len;
// When def_optional is true, it's OK to not have a "=value" part.
if (def_optional && (flag_end[0] == '\0')) {
return flag_end;
}
// If def_optional is true and there are more characters after the
// flag name, or if def_optional is false, there must be a '=' after
// the flag name.
if (flag_end[0] != '=') return NULL;
// Returns the string after "=".
return flag_end + 1;
}
// Parses a string for a Google Mock bool flag, in the form of
// "--gmock_flag=value".
//
// On success, stores the value of the flag in *value, and returns
// true. On failure, returns false without changing *value.
static bool ParseGoogleMockBoolFlag(const char* str, const char* flag,
bool* value) {
// Gets the value of the flag as a string.
const char* const value_str = ParseGoogleMockFlagValue(str, flag, true);
// Aborts if the parsing failed.
if (value_str == NULL) return false;
// Converts the string value to a bool.
*value = !(*value_str == '0' || *value_str == 'f' || *value_str == 'F');
return true;
}
// Parses a string for a Google Mock string flag, in the form of
// "--gmock_flag=value".
//
// On success, stores the value of the flag in *value, and returns
// true. On failure, returns false without changing *value.
template <typename String>
static bool ParseGoogleMockStringFlag(const char* str, const char* flag,
String* value) {
// Gets the value of the flag as a string.
const char* const value_str = ParseGoogleMockFlagValue(str, flag, false);
// Aborts if the parsing failed.
if (value_str == NULL) return false;
// Sets *value to the value of the flag.
*value = value_str;
return true;
}
// The internal implementation of InitGoogleMock().
//
// The type parameter CharType can be instantiated to either char or
// wchar_t.
template <typename CharType>
void InitGoogleMockImpl(int* argc, CharType** argv) {
// Makes sure Google Test is initialized. InitGoogleTest() is
// idempotent, so it's fine if the user has already called it.
InitGoogleTest(argc, argv);
if (*argc <= 0) return;
for (int i = 1; i != *argc; i++) {
const std::string arg_string = StreamableToString(argv[i]);
const char* const arg = arg_string.c_str();
// Do we see a Google Mock flag?
if (ParseGoogleMockBoolFlag(arg, "catch_leaked_mocks",
&GMOCK_FLAG(catch_leaked_mocks)) ||
ParseGoogleMockStringFlag(arg, "verbose", &GMOCK_FLAG(verbose))) {
// Yes. Shift the remainder of the argv list left by one. Note
// that argv has (*argc + 1) elements, the last one always being
// NULL. The following loop moves the trailing NULL element as
// well.
for (int j = i; j != *argc; j++) {
argv[j] = argv[j + 1];
}
// Decrements the argument count.
(*argc)--;
// We also need to decrement the iterator as we just removed
// an element.
i--;
}
}
}
} // namespace internal
// Initializes Google Mock. This must be called before running the
// tests. In particular, it parses a command line for the flags that
// Google Mock recognizes. Whenever a Google Mock flag is seen, it is
// removed from argv, and *argc is decremented.
//
// No value is returned. Instead, the Google Mock flag variables are
// updated.
//
// Since Google Test is needed for Google Mock to work, this function
// also initializes Google Test and parses its flags, if that hasn't
// been done.
GTEST_API_ void InitGoogleMock(int* argc, char** argv) {
internal::InitGoogleMockImpl(argc, argv);
}
// This overloaded version can be used in Windows programs compiled in
// UNICODE mode.
GTEST_API_ void InitGoogleMock(int* argc, wchar_t** argv) {
internal::InitGoogleMockImpl(argc, argv);
}
} // namespace testing
googlemock/src/gmock_main.cc 0 → 100644
View file @ ecf94595
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
#include <iostream>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
// MS C++ compiler/linker has a bug on Windows (not on Windows CE), which
// causes a link error when _tmain is defined in a static library and UNICODE
// is enabled. For this reason instead of _tmain, main function is used on
// Windows. See the following link to track the current status of this bug:
// http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=394464 // NOLINT
#if GTEST_OS_WINDOWS_MOBILE
# include <tchar.h> // NOLINT
GTEST_API_ int _tmain(int argc, TCHAR** argv) {
#else
GTEST_API_ int main(int argc, char** argv) {
#endif // GTEST_OS_WINDOWS_MOBILE
std::cout << "Running main() from gmock_main.cc\n";
// Since Google Mock depends on Google Test, InitGoogleMock() is
// also responsible for initializing Google Test. Therefore there's
// no need for calling testing::InitGoogleTest() separately.
testing::InitGoogleMock(&argc, argv);
return RUN_ALL_TESTS();
}
googlemock/test/gmock-actions_test.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the built-in actions.
#include "gmock/gmock-actions.h"
#include <algorithm>
#include <iterator>
#include <memory>
#include <string>
#include "gmock/gmock.h"
#include "gmock/internal/gmock-port.h"
#include "gtest/gtest.h"
#include "gtest/gtest-spi.h"
namespace {
// This list should be kept sorted.
using testing::Action;
using testing::ActionInterface;
using testing::Assign;
using testing::ByMove;
using testing::ByRef;
using testing::DefaultValue;
using testing::DoDefault;
using testing::IgnoreResult;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::MakePolymorphicAction;
using testing::Ne;
using testing::PolymorphicAction;
using testing::Return;
using testing::ReturnNull;
using testing::ReturnRef;
using testing::ReturnRefOfCopy;
using testing::SetArgPointee;
using testing::SetArgumentPointee;
using testing::_;
using testing::get;
using testing::internal::BuiltInDefaultValue;
using testing::internal::Int64;
using testing::internal::UInt64;
using testing::make_tuple;
using testing::tuple;
using testing::tuple_element;
#if !GTEST_OS_WINDOWS_MOBILE
using testing::SetErrnoAndReturn;
#endif
#if GTEST_HAS_PROTOBUF_
using testing::internal::TestMessage;
#endif // GTEST_HAS_PROTOBUF_
// Tests that BuiltInDefaultValue<T*>::Get() returns NULL.
TEST(BuiltInDefaultValueTest, IsNullForPointerTypes) {
EXPECT_TRUE(BuiltInDefaultValue<int*>::Get() == NULL);
EXPECT_TRUE(BuiltInDefaultValue<const char*>::Get() == NULL);
EXPECT_TRUE(BuiltInDefaultValue<void*>::Get() == NULL);
}
// Tests that BuiltInDefaultValue<T*>::Exists() return true.
TEST(BuiltInDefaultValueTest, ExistsForPointerTypes) {
EXPECT_TRUE(BuiltInDefaultValue<int*>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<const char*>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<void*>::Exists());
}
// Tests that BuiltInDefaultValue<T>::Get() returns 0 when T is a
// built-in numeric type.
TEST(BuiltInDefaultValueTest, IsZeroForNumericTypes) {
EXPECT_EQ(0U, BuiltInDefaultValue<unsigned char>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<signed char>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<char>::Get());
#if GMOCK_HAS_SIGNED_WCHAR_T_
EXPECT_EQ(0U, BuiltInDefaultValue<unsigned wchar_t>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<signed wchar_t>::Get());
#endif
#if GMOCK_WCHAR_T_IS_NATIVE_
EXPECT_EQ(0, BuiltInDefaultValue<wchar_t>::Get());
#endif
EXPECT_EQ(0U, BuiltInDefaultValue<unsigned short>::Get()); // NOLINT
EXPECT_EQ(0, BuiltInDefaultValue<signed short>::Get()); // NOLINT
EXPECT_EQ(0, BuiltInDefaultValue<short>::Get()); // NOLINT
EXPECT_EQ(0U, BuiltInDefaultValue<unsigned int>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<signed int>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<int>::Get());
EXPECT_EQ(0U, BuiltInDefaultValue<unsigned long>::Get()); // NOLINT
EXPECT_EQ(0, BuiltInDefaultValue<signed long>::Get()); // NOLINT
EXPECT_EQ(0, BuiltInDefaultValue<long>::Get()); // NOLINT
EXPECT_EQ(0U, BuiltInDefaultValue<UInt64>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<Int64>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<float>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<double>::Get());
}
// Tests that BuiltInDefaultValue<T>::Exists() returns true when T is a
// built-in numeric type.
TEST(BuiltInDefaultValueTest, ExistsForNumericTypes) {
EXPECT_TRUE(BuiltInDefaultValue<unsigned char>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<signed char>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<char>::Exists());
#if GMOCK_HAS_SIGNED_WCHAR_T_
EXPECT_TRUE(BuiltInDefaultValue<unsigned wchar_t>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<signed wchar_t>::Exists());
#endif
#if GMOCK_WCHAR_T_IS_NATIVE_
EXPECT_TRUE(BuiltInDefaultValue<wchar_t>::Exists());
#endif
EXPECT_TRUE(BuiltInDefaultValue<unsigned short>::Exists()); // NOLINT
EXPECT_TRUE(BuiltInDefaultValue<signed short>::Exists()); // NOLINT
EXPECT_TRUE(BuiltInDefaultValue<short>::Exists()); // NOLINT
EXPECT_TRUE(BuiltInDefaultValue<unsigned int>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<signed int>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<int>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<unsigned long>::Exists()); // NOLINT
EXPECT_TRUE(BuiltInDefaultValue<signed long>::Exists()); // NOLINT
EXPECT_TRUE(BuiltInDefaultValue<long>::Exists()); // NOLINT
EXPECT_TRUE(BuiltInDefaultValue<UInt64>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<Int64>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<float>::Exists());
EXPECT_TRUE(BuiltInDefaultValue<double>::Exists());
}
// Tests that BuiltInDefaultValue<bool>::Get() returns false.
TEST(BuiltInDefaultValueTest, IsFalseForBool) {
EXPECT_FALSE(BuiltInDefaultValue<bool>::Get());
}
// Tests that BuiltInDefaultValue<bool>::Exists() returns true.
TEST(BuiltInDefaultValueTest, BoolExists) {
EXPECT_TRUE(BuiltInDefaultValue<bool>::Exists());
}
// Tests that BuiltInDefaultValue<T>::Get() returns "" when T is a
// string type.
TEST(BuiltInDefaultValueTest, IsEmptyStringForString) {
#if GTEST_HAS_GLOBAL_STRING
EXPECT_EQ("", BuiltInDefaultValue< ::string>::Get());
#endif // GTEST_HAS_GLOBAL_STRING
EXPECT_EQ("", BuiltInDefaultValue< ::std::string>::Get());
}
// Tests that BuiltInDefaultValue<T>::Exists() returns true when T is a
// string type.
TEST(BuiltInDefaultValueTest, ExistsForString) {
#if GTEST_HAS_GLOBAL_STRING
EXPECT_TRUE(BuiltInDefaultValue< ::string>::Exists());
#endif // GTEST_HAS_GLOBAL_STRING
EXPECT_TRUE(BuiltInDefaultValue< ::std::string>::Exists());
}
// Tests that BuiltInDefaultValue<const T>::Get() returns the same
// value as BuiltInDefaultValue<T>::Get() does.
TEST(BuiltInDefaultValueTest, WorksForConstTypes) {
EXPECT_EQ("", BuiltInDefaultValue<const std::string>::Get());
EXPECT_EQ(0, BuiltInDefaultValue<const int>::Get());
EXPECT_TRUE(BuiltInDefaultValue<char* const>::Get() == NULL);
EXPECT_FALSE(BuiltInDefaultValue<const bool>::Get());
}
// A type that's default constructible.
class MyDefaultConstructible {
public:
MyDefaultConstructible() : value_(42) {}
int value() const { return value_; }
private:
int value_;
};
// A type that's not default constructible.
class MyNonDefaultConstructible {
public:
// Does not have a default ctor.
explicit MyNonDefaultConstructible(int a_value) : value_(a_value) {}
int value() const { return value_; }
private:
int value_;
};
#if GTEST_LANG_CXX11
TEST(BuiltInDefaultValueTest, ExistsForDefaultConstructibleType) {
EXPECT_TRUE(BuiltInDefaultValue<MyDefaultConstructible>::Exists());
}
TEST(BuiltInDefaultValueTest, IsDefaultConstructedForDefaultConstructibleType) {
EXPECT_EQ(42, BuiltInDefaultValue<MyDefaultConstructible>::Get().value());
}
#endif // GTEST_LANG_CXX11
TEST(BuiltInDefaultValueTest, DoesNotExistForNonDefaultConstructibleType) {
EXPECT_FALSE(BuiltInDefaultValue<MyNonDefaultConstructible>::Exists());
}
// Tests that BuiltInDefaultValue<T&>::Get() aborts the program.
TEST(BuiltInDefaultValueDeathTest, IsUndefinedForReferences) {
EXPECT_DEATH_IF_SUPPORTED({
BuiltInDefaultValue<int&>::Get();
}, "");
EXPECT_DEATH_IF_SUPPORTED({
BuiltInDefaultValue<const char&>::Get();
}, "");
}
TEST(BuiltInDefaultValueDeathTest, IsUndefinedForNonDefaultConstructibleType) {
EXPECT_DEATH_IF_SUPPORTED({
BuiltInDefaultValue<MyNonDefaultConstructible>::Get();
}, "");
}
// Tests that DefaultValue<T>::IsSet() is false initially.
TEST(DefaultValueTest, IsInitiallyUnset) {
EXPECT_FALSE(DefaultValue<int>::IsSet());
EXPECT_FALSE(DefaultValue<MyDefaultConstructible>::IsSet());
EXPECT_FALSE(DefaultValue<const MyNonDefaultConstructible>::IsSet());
}
// Tests that DefaultValue<T> can be set and then unset.
TEST(DefaultValueTest, CanBeSetAndUnset) {
EXPECT_TRUE(DefaultValue<int>::Exists());
EXPECT_FALSE(DefaultValue<const MyNonDefaultConstructible>::Exists());
DefaultValue<int>::Set(1);
DefaultValue<const MyNonDefaultConstructible>::Set(
MyNonDefaultConstructible(42));
EXPECT_EQ(1, DefaultValue<int>::Get());
EXPECT_EQ(42, DefaultValue<const MyNonDefaultConstructible>::Get().value());
EXPECT_TRUE(DefaultValue<int>::Exists());
EXPECT_TRUE(DefaultValue<const MyNonDefaultConstructible>::Exists());
DefaultValue<int>::Clear();
DefaultValue<const MyNonDefaultConstructible>::Clear();
EXPECT_FALSE(DefaultValue<int>::IsSet());
EXPECT_FALSE(DefaultValue<const MyNonDefaultConstructible>::IsSet());
EXPECT_TRUE(DefaultValue<int>::Exists());
EXPECT_FALSE(DefaultValue<const MyNonDefaultConstructible>::Exists());
}
// Tests that DefaultValue<T>::Get() returns the
// BuiltInDefaultValue<T>::Get() when DefaultValue<T>::IsSet() is
// false.
TEST(DefaultValueDeathTest, GetReturnsBuiltInDefaultValueWhenUnset) {
EXPECT_FALSE(DefaultValue<int>::IsSet());
EXPECT_TRUE(DefaultValue<int>::Exists());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible>::IsSet());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible>::Exists());
EXPECT_EQ(0, DefaultValue<int>::Get());
EXPECT_DEATH_IF_SUPPORTED({
DefaultValue<MyNonDefaultConstructible>::Get();
}, "");
}
#if GTEST_HAS_STD_UNIQUE_PTR_
TEST(DefaultValueTest, GetWorksForMoveOnlyIfSet) {
EXPECT_TRUE(DefaultValue<std::unique_ptr<int>>::Exists());
EXPECT_TRUE(DefaultValue<std::unique_ptr<int>>::Get() == NULL);
DefaultValue<std::unique_ptr<int>>::SetFactory([] {
return std::unique_ptr<int>(new int(42));
});
EXPECT_TRUE(DefaultValue<std::unique_ptr<int>>::Exists());
std::unique_ptr<int> i = DefaultValue<std::unique_ptr<int>>::Get();
EXPECT_EQ(42, *i);
}
#endif // GTEST_HAS_STD_UNIQUE_PTR_
// Tests that DefaultValue<void>::Get() returns void.
TEST(DefaultValueTest, GetWorksForVoid) {
return DefaultValue<void>::Get();
}
// Tests using DefaultValue with a reference type.
// Tests that DefaultValue<T&>::IsSet() is false initially.
TEST(DefaultValueOfReferenceTest, IsInitiallyUnset) {
EXPECT_FALSE(DefaultValue<int&>::IsSet());
EXPECT_FALSE(DefaultValue<MyDefaultConstructible&>::IsSet());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible&>::IsSet());
}
// Tests that DefaultValue<T&>::Exists is false initiallly.
TEST(DefaultValueOfReferenceTest, IsInitiallyNotExisting) {
EXPECT_FALSE(DefaultValue<int&>::Exists());
EXPECT_FALSE(DefaultValue<MyDefaultConstructible&>::Exists());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible&>::Exists());
}
// Tests that DefaultValue<T&> can be set and then unset.
TEST(DefaultValueOfReferenceTest, CanBeSetAndUnset) {
int n = 1;
DefaultValue<const int&>::Set(n);
MyNonDefaultConstructible x(42);
DefaultValue<MyNonDefaultConstructible&>::Set(x);
EXPECT_TRUE(DefaultValue<const int&>::Exists());
EXPECT_TRUE(DefaultValue<MyNonDefaultConstructible&>::Exists());
EXPECT_EQ(&n, &(DefaultValue<const int&>::Get()));
EXPECT_EQ(&x, &(DefaultValue<MyNonDefaultConstructible&>::Get()));
DefaultValue<const int&>::Clear();
DefaultValue<MyNonDefaultConstructible&>::Clear();
EXPECT_FALSE(DefaultValue<const int&>::Exists());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible&>::Exists());
EXPECT_FALSE(DefaultValue<const int&>::IsSet());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible&>::IsSet());
}
// Tests that DefaultValue<T&>::Get() returns the
// BuiltInDefaultValue<T&>::Get() when DefaultValue<T&>::IsSet() is
// false.
TEST(DefaultValueOfReferenceDeathTest, GetReturnsBuiltInDefaultValueWhenUnset) {
EXPECT_FALSE(DefaultValue<int&>::IsSet());
EXPECT_FALSE(DefaultValue<MyNonDefaultConstructible&>::IsSet());
EXPECT_DEATH_IF_SUPPORTED({
DefaultValue<int&>::Get();
}, "");
EXPECT_DEATH_IF_SUPPORTED({
DefaultValue<MyNonDefaultConstructible>::Get();
}, "");
}
// Tests that ActionInterface can be implemented by defining the
// Perform method.
typedef int MyGlobalFunction(bool, int);
class MyActionImpl : public ActionInterface<MyGlobalFunction> {
public:
virtual int Perform(const tuple<bool, int>& args) {
return get<0>(args) ? get<1>(args) : 0;
}
};
TEST(ActionInterfaceTest, CanBeImplementedByDefiningPerform) {
MyActionImpl my_action_impl;
(void)my_action_impl;
}
TEST(ActionInterfaceTest, MakeAction) {
Action<MyGlobalFunction> action = MakeAction(new MyActionImpl);
// When exercising the Perform() method of Action<F>, we must pass
// it a tuple whose size and type are compatible with F's argument
// types. For example, if F is int(), then Perform() takes a
// 0-tuple; if F is void(bool, int), then Perform() takes a
// tuple<bool, int>, and so on.
EXPECT_EQ(5, action.Perform(make_tuple(true, 5)));
}
// Tests that Action<F> can be contructed from a pointer to
// ActionInterface<F>.
TEST(ActionTest, CanBeConstructedFromActionInterface) {
Action<MyGlobalFunction> action(new MyActionImpl);
}
// Tests that Action<F> delegates actual work to ActionInterface<F>.
TEST(ActionTest, DelegatesWorkToActionInterface) {
const Action<MyGlobalFunction> action(new MyActionImpl);
EXPECT_EQ(5, action.Perform(make_tuple(true, 5)));
EXPECT_EQ(0, action.Perform(make_tuple(false, 1)));
}
// Tests that Action<F> can be copied.
TEST(ActionTest, IsCopyable) {
Action<MyGlobalFunction> a1(new MyActionImpl);
Action<MyGlobalFunction> a2(a1); // Tests the copy constructor.
// a1 should continue to work after being copied from.
EXPECT_EQ(5, a1.Perform(make_tuple(true, 5)));
EXPECT_EQ(0, a1.Perform(make_tuple(false, 1)));
// a2 should work like the action it was copied from.
EXPECT_EQ(5, a2.Perform(make_tuple(true, 5)));
EXPECT_EQ(0, a2.Perform(make_tuple(false, 1)));
a2 = a1; // Tests the assignment operator.
// a1 should continue to work after being copied from.
EXPECT_EQ(5, a1.Perform(make_tuple(true, 5)));
EXPECT_EQ(0, a1.Perform(make_tuple(false, 1)));
// a2 should work like the action it was copied from.
EXPECT_EQ(5, a2.Perform(make_tuple(true, 5)));
EXPECT_EQ(0, a2.Perform(make_tuple(false, 1)));
}
// Tests that an Action<From> object can be converted to a
// compatible Action<To> object.
class IsNotZero : public ActionInterface<bool(int)> { // NOLINT
public:
virtual bool Perform(const tuple<int>& arg) {
return get<0>(arg) != 0;
}
};
#if !GTEST_OS_SYMBIAN
// Compiling this test on Nokia's Symbian compiler fails with:
// 'Result' is not a member of class 'testing::internal::Function<int>'
// (point of instantiation: '@unnamed@gmock_actions_test_cc@::
// ActionTest_CanBeConvertedToOtherActionType_Test::TestBody()')
// with no obvious fix.
TEST(ActionTest, CanBeConvertedToOtherActionType) {
const Action<bool(int)> a1(new IsNotZero); // NOLINT
const Action<int(char)> a2 = Action<int(char)>(a1); // NOLINT
EXPECT_EQ(1, a2.Perform(make_tuple('a')));
EXPECT_EQ(0, a2.Perform(make_tuple('\0')));
}
#endif // !GTEST_OS_SYMBIAN
// The following two classes are for testing MakePolymorphicAction().
// Implements a polymorphic action that returns the second of the
// arguments it receives.
class ReturnSecondArgumentAction {
public:
// We want to verify that MakePolymorphicAction() can work with a
// polymorphic action whose Perform() method template is either
// const or not. This lets us verify the non-const case.
template <typename Result, typename ArgumentTuple>
Result Perform(const ArgumentTuple& args) { return get<1>(args); }
};
// Implements a polymorphic action that can be used in a nullary
// function to return 0.
class ReturnZeroFromNullaryFunctionAction {
public:
// For testing that MakePolymorphicAction() works when the
// implementation class' Perform() method template takes only one
// template parameter.
//
// We want to verify that MakePolymorphicAction() can work with a
// polymorphic action whose Perform() method template is either
// const or not. This lets us verify the const case.
template <typename Result>
Result Perform(const tuple<>&) const { return 0; }
};
// These functions verify that MakePolymorphicAction() returns a
// PolymorphicAction<T> where T is the argument's type.
PolymorphicAction<ReturnSecondArgumentAction> ReturnSecondArgument() {
return MakePolymorphicAction(ReturnSecondArgumentAction());
}
PolymorphicAction<ReturnZeroFromNullaryFunctionAction>
ReturnZeroFromNullaryFunction() {
return MakePolymorphicAction(ReturnZeroFromNullaryFunctionAction());
}
// Tests that MakePolymorphicAction() turns a polymorphic action
// implementation class into a polymorphic action.
TEST(MakePolymorphicActionTest, ConstructsActionFromImpl) {
Action<int(bool, int, double)> a1 = ReturnSecondArgument(); // NOLINT
EXPECT_EQ(5, a1.Perform(make_tuple(false, 5, 2.0)));
}
// Tests that MakePolymorphicAction() works when the implementation
// class' Perform() method template has only one template parameter.
TEST(MakePolymorphicActionTest, WorksWhenPerformHasOneTemplateParameter) {
Action<int()> a1 = ReturnZeroFromNullaryFunction();
EXPECT_EQ(0, a1.Perform(make_tuple()));
Action<void*()> a2 = ReturnZeroFromNullaryFunction();
EXPECT_TRUE(a2.Perform(make_tuple()) == NULL);
}
// Tests that Return() works as an action for void-returning
// functions.
TEST(ReturnTest, WorksForVoid) {
const Action<void(int)> ret = Return(); // NOLINT
return ret.Perform(make_tuple(1));
}
// Tests that Return(v) returns v.
TEST(ReturnTest, ReturnsGivenValue) {
Action<int()> ret = Return(1); // NOLINT
EXPECT_EQ(1, ret.Perform(make_tuple()));
ret = Return(-5);
EXPECT_EQ(-5, ret.Perform(make_tuple()));
}
// Tests that Return("string literal") works.
TEST(ReturnTest, AcceptsStringLiteral) {
Action<const char*()> a1 = Return("Hello");
EXPECT_STREQ("Hello", a1.Perform(make_tuple()));
Action<std::string()> a2 = Return("world");
EXPECT_EQ("world", a2.Perform(make_tuple()));
}
// Test struct which wraps a vector of integers. Used in
// 'SupportsWrapperReturnType' test.
struct IntegerVectorWrapper {
std::vector<int> * v;
IntegerVectorWrapper(std::vector<int>& _v) : v(&_v) {} // NOLINT
};
// Tests that Return() works when return type is a wrapper type.
TEST(ReturnTest, SupportsWrapperReturnType) {
// Initialize vector of integers.
std::vector<int> v;
for (int i = 0; i < 5; ++i) v.push_back(i);
// Return() called with 'v' as argument. The Action will return the same data
// as 'v' (copy) but it will be wrapped in an IntegerVectorWrapper.
Action<IntegerVectorWrapper()> a = Return(v);
const std::vector<int>& result = *(a.Perform(make_tuple()).v);
EXPECT_THAT(result, ::testing::ElementsAre(0, 1, 2, 3, 4));
}
// Tests that Return(v) is covaraint.
struct Base {
bool operator==(const Base&) { return true; }
};
struct Derived : public Base {
bool operator==(const Derived&) { return true; }
};
TEST(ReturnTest, IsCovariant) {
Base base;
Derived derived;
Action<Base*()> ret = Return(&base);
EXPECT_EQ(&base, ret.Perform(make_tuple()));
ret = Return(&derived);
EXPECT_EQ(&derived, ret.Perform(make_tuple()));
}
// Tests that the type of the value passed into Return is converted into T
// when the action is cast to Action<T(...)> rather than when the action is
// performed. See comments on testing::internal::ReturnAction in
// gmock-actions.h for more information.
class FromType {
public:
explicit FromType(bool* is_converted) : converted_(is_converted) {}
bool* converted() const { return converted_; }
private:
bool* const converted_;
GTEST_DISALLOW_ASSIGN_(FromType);
};
class ToType {
public:
// Must allow implicit conversion due to use in ImplicitCast_<T>.
ToType(const FromType& x) { *x.converted() = true; } // NOLINT
};
TEST(ReturnTest, ConvertsArgumentWhenConverted) {
bool converted = false;
FromType x(&converted);
Action<ToType()> action(Return(x));
EXPECT_TRUE(converted) << "Return must convert its argument in its own "
<< "conversion operator.";
converted = false;
action.Perform(tuple<>());
EXPECT_FALSE(converted) << "Action must NOT convert its argument "
<< "when performed.";
}
class DestinationType {};
class SourceType {
public:
// Note: a non-const typecast operator.
operator DestinationType() { return DestinationType(); }
};
TEST(ReturnTest, CanConvertArgumentUsingNonConstTypeCastOperator) {
SourceType s;
Action<DestinationType()> action(Return(s));
}
// Tests that ReturnNull() returns NULL in a pointer-returning function.
TEST(ReturnNullTest, WorksInPointerReturningFunction) {
const Action<int*()> a1 = ReturnNull();
EXPECT_TRUE(a1.Perform(make_tuple()) == NULL);
const Action<const char*(bool)> a2 = ReturnNull(); // NOLINT
EXPECT_TRUE(a2.Perform(make_tuple(true)) == NULL);
}
#if GTEST_HAS_STD_UNIQUE_PTR_
// Tests that ReturnNull() returns NULL for shared_ptr and unique_ptr returning
// functions.
TEST(ReturnNullTest, WorksInSmartPointerReturningFunction) {
const Action<std::unique_ptr<const int>()> a1 = ReturnNull();
EXPECT_TRUE(a1.Perform(make_tuple()) == nullptr);
const Action<std::shared_ptr<int>(std::string)> a2 = ReturnNull();
EXPECT_TRUE(a2.Perform(make_tuple("foo")) == nullptr);
}
#endif // GTEST_HAS_STD_UNIQUE_PTR_
// Tests that ReturnRef(v) works for reference types.
TEST(ReturnRefTest, WorksForReference) {
const int n = 0;
const Action<const int&(bool)> ret = ReturnRef(n); // NOLINT
EXPECT_EQ(&n, &ret.Perform(make_tuple(true)));
}
// Tests that ReturnRef(v) is covariant.
TEST(ReturnRefTest, IsCovariant) {
Base base;
Derived derived;
Action<Base&()> a = ReturnRef(base);
EXPECT_EQ(&base, &a.Perform(make_tuple()));
a = ReturnRef(derived);
EXPECT_EQ(&derived, &a.Perform(make_tuple()));
}
// Tests that ReturnRefOfCopy(v) works for reference types.
TEST(ReturnRefOfCopyTest, WorksForReference) {
int n = 42;
const Action<const int&()> ret = ReturnRefOfCopy(n);
EXPECT_NE(&n, &ret.Perform(make_tuple()));
EXPECT_EQ(42, ret.Perform(make_tuple()));
n = 43;
EXPECT_NE(&n, &ret.Perform(make_tuple()));
EXPECT_EQ(42, ret.Perform(make_tuple()));
}
// Tests that ReturnRefOfCopy(v) is covariant.
TEST(ReturnRefOfCopyTest, IsCovariant) {
Base base;
Derived derived;
Action<Base&()> a = ReturnRefOfCopy(base);
EXPECT_NE(&base, &a.Perform(make_tuple()));
a = ReturnRefOfCopy(derived);
EXPECT_NE(&derived, &a.Perform(make_tuple()));
}
// Tests that DoDefault() does the default action for the mock method.
class MockClass {
public:
MockClass() {}
MOCK_METHOD1(IntFunc, int(bool flag)); // NOLINT
MOCK_METHOD0(Foo, MyNonDefaultConstructible());
#if GTEST_HAS_STD_UNIQUE_PTR_
MOCK_METHOD0(MakeUnique, std::unique_ptr<int>());
MOCK_METHOD0(MakeUniqueBase, std::unique_ptr<Base>());
MOCK_METHOD0(MakeVectorUnique, std::vector<std::unique_ptr<int>>());
#endif
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(MockClass);
};
// Tests that DoDefault() returns the built-in default value for the
// return type by default.
TEST(DoDefaultTest, ReturnsBuiltInDefaultValueByDefault) {
MockClass mock;
EXPECT_CALL(mock, IntFunc(_))
.WillOnce(DoDefault());
EXPECT_EQ(0, mock.IntFunc(true));
}
// Tests that DoDefault() throws (when exceptions are enabled) or aborts
// the process when there is no built-in default value for the return type.
TEST(DoDefaultDeathTest, DiesForUnknowType) {
MockClass mock;
EXPECT_CALL(mock, Foo())
.WillRepeatedly(DoDefault());
#if GTEST_HAS_EXCEPTIONS
EXPECT_ANY_THROW(mock.Foo());
#else
EXPECT_DEATH_IF_SUPPORTED({
mock.Foo();
}, "");
#endif
}
// Tests that using DoDefault() inside a composite action leads to a
// run-time error.
void VoidFunc(bool /* flag */) {}
TEST(DoDefaultDeathTest, DiesIfUsedInCompositeAction) {
MockClass mock;
EXPECT_CALL(mock, IntFunc(_))
.WillRepeatedly(DoAll(Invoke(VoidFunc),
DoDefault()));
// Ideally we should verify the error message as well. Sadly,
// EXPECT_DEATH() can only capture stderr, while Google Mock's
// errors are printed on stdout. Therefore we have to settle for
// not verifying the message.
EXPECT_DEATH_IF_SUPPORTED({
mock.IntFunc(true);
}, "");
}
// Tests that DoDefault() returns the default value set by
// DefaultValue<T>::Set() when it's not overriden by an ON_CALL().
TEST(DoDefaultTest, ReturnsUserSpecifiedPerTypeDefaultValueWhenThereIsOne) {
DefaultValue<int>::Set(1);
MockClass mock;
EXPECT_CALL(mock, IntFunc(_))
.WillOnce(DoDefault());
EXPECT_EQ(1, mock.IntFunc(false));
DefaultValue<int>::Clear();
}
// Tests that DoDefault() does the action specified by ON_CALL().
TEST(DoDefaultTest, DoesWhatOnCallSpecifies) {
MockClass mock;
ON_CALL(mock, IntFunc(_))
.WillByDefault(Return(2));
EXPECT_CALL(mock, IntFunc(_))
.WillOnce(DoDefault());
EXPECT_EQ(2, mock.IntFunc(false));
}
// Tests that using DoDefault() in ON_CALL() leads to a run-time failure.
TEST(DoDefaultTest, CannotBeUsedInOnCall) {
MockClass mock;
EXPECT_NONFATAL_FAILURE({ // NOLINT
ON_CALL(mock, IntFunc(_))
.WillByDefault(DoDefault());
}, "DoDefault() cannot be used in ON_CALL()");
}
// Tests that SetArgPointee<N>(v) sets the variable pointed to by
// the N-th (0-based) argument to v.
TEST(SetArgPointeeTest, SetsTheNthPointee) {
typedef void MyFunction(bool, int*, char*);
Action<MyFunction> a = SetArgPointee<1>(2);
int n = 0;
char ch = '\0';
a.Perform(make_tuple(true, &n, &ch));
EXPECT_EQ(2, n);
EXPECT_EQ('\0', ch);
a = SetArgPointee<2>('a');
n = 0;
ch = '\0';
a.Perform(make_tuple(true, &n, &ch));
EXPECT_EQ(0, n);
EXPECT_EQ('a', ch);
}
#if !((GTEST_GCC_VER_ && GTEST_GCC_VER_ < 40000) || GTEST_OS_SYMBIAN)
// Tests that SetArgPointee<N>() accepts a string literal.
// GCC prior to v4.0 and the Symbian compiler do not support this.
TEST(SetArgPointeeTest, AcceptsStringLiteral) {
typedef void MyFunction(std::string*, const char**);
Action<MyFunction> a = SetArgPointee<0>("hi");
std::string str;
const char* ptr = NULL;
a.Perform(make_tuple(&str, &ptr));
EXPECT_EQ("hi", str);
EXPECT_TRUE(ptr == NULL);
a = SetArgPointee<1>("world");
str = "";
a.Perform(make_tuple(&str, &ptr));
EXPECT_EQ("", str);
EXPECT_STREQ("world", ptr);
}
TEST(SetArgPointeeTest, AcceptsWideStringLiteral) {
typedef void MyFunction(const wchar_t**);
Action<MyFunction> a = SetArgPointee<0>(L"world");
const wchar_t* ptr = NULL;
a.Perform(make_tuple(&ptr));
EXPECT_STREQ(L"world", ptr);
# if GTEST_HAS_STD_WSTRING
typedef void MyStringFunction(std::wstring*);
Action<MyStringFunction> a2 = SetArgPointee<0>(L"world");
std::wstring str = L"";
a2.Perform(make_tuple(&str));
EXPECT_EQ(L"world", str);
# endif
}
#endif
// Tests that SetArgPointee<N>() accepts a char pointer.
TEST(SetArgPointeeTest, AcceptsCharPointer) {
typedef void MyFunction(bool, std::string*, const char**);
const char* const hi = "hi";
Action<MyFunction> a = SetArgPointee<1>(hi);
std::string str;
const char* ptr = NULL;
a.Perform(make_tuple(true, &str, &ptr));
EXPECT_EQ("hi", str);
EXPECT_TRUE(ptr == NULL);
char world_array[] = "world";
char* const world = world_array;
a = SetArgPointee<2>(world);
str = "";
a.Perform(make_tuple(true, &str, &ptr));
EXPECT_EQ("", str);
EXPECT_EQ(world, ptr);
}
TEST(SetArgPointeeTest, AcceptsWideCharPointer) {
typedef void MyFunction(bool, const wchar_t**);
const wchar_t* const hi = L"hi";
Action<MyFunction> a = SetArgPointee<1>(hi);
const wchar_t* ptr = NULL;
a.Perform(make_tuple(true, &ptr));
EXPECT_EQ(hi, ptr);
# if GTEST_HAS_STD_WSTRING
typedef void MyStringFunction(bool, std::wstring*);
wchar_t world_array[] = L"world";
wchar_t* const world = world_array;
Action<MyStringFunction> a2 = SetArgPointee<1>(world);
std::wstring str;
a2.Perform(make_tuple(true, &str));
EXPECT_EQ(world_array, str);
# endif
}
#if GTEST_HAS_PROTOBUF_
// Tests that SetArgPointee<N>(proto_buffer) sets the v1 protobuf
// variable pointed to by the N-th (0-based) argument to proto_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProtoBufferType) {
TestMessage* const msg = new TestMessage;
msg->set_member("yes");
TestMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, TestMessage*)> a = SetArgPointee<1>(*msg);
// SetArgPointee<N>(proto_buffer) makes a copy of proto_buffer
// s.t. the action works even when the original proto_buffer has
// died. We ensure this behavior by deleting msg before using the
// action.
delete msg;
TestMessage dest;
EXPECT_FALSE(orig_msg.Equals(dest));
a.Perform(make_tuple(true, &dest));
EXPECT_TRUE(orig_msg.Equals(dest));
}
// Tests that SetArgPointee<N>(proto_buffer) sets the
// ::ProtocolMessage variable pointed to by the N-th (0-based)
// argument to proto_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProtoBufferBaseType) {
TestMessage* const msg = new TestMessage;
msg->set_member("yes");
TestMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, ::ProtocolMessage*)> a = SetArgPointee<1>(*msg);
// SetArgPointee<N>(proto_buffer) makes a copy of proto_buffer
// s.t. the action works even when the original proto_buffer has
// died. We ensure this behavior by deleting msg before using the
// action.
delete msg;
TestMessage dest;
::ProtocolMessage* const dest_base = &dest;
EXPECT_FALSE(orig_msg.Equals(dest));
a.Perform(make_tuple(true, dest_base));
EXPECT_TRUE(orig_msg.Equals(dest));
}
// Tests that SetArgPointee<N>(proto2_buffer) sets the v2
// protobuf variable pointed to by the N-th (0-based) argument to
// proto2_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProto2BufferType) {
using testing::internal::FooMessage;
FooMessage* const msg = new FooMessage;
msg->set_int_field(2);
msg->set_string_field("hi");
FooMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, FooMessage*)> a = SetArgPointee<1>(*msg);
// SetArgPointee<N>(proto2_buffer) makes a copy of
// proto2_buffer s.t. the action works even when the original
// proto2_buffer has died. We ensure this behavior by deleting msg
// before using the action.
delete msg;
FooMessage dest;
dest.set_int_field(0);
a.Perform(make_tuple(true, &dest));
EXPECT_EQ(2, dest.int_field());
EXPECT_EQ("hi", dest.string_field());
}
// Tests that SetArgPointee<N>(proto2_buffer) sets the
// proto2::Message variable pointed to by the N-th (0-based) argument
// to proto2_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProto2BufferBaseType) {
using testing::internal::FooMessage;
FooMessage* const msg = new FooMessage;
msg->set_int_field(2);
msg->set_string_field("hi");
FooMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, ::proto2::Message*)> a = SetArgPointee<1>(*msg);
// SetArgPointee<N>(proto2_buffer) makes a copy of
// proto2_buffer s.t. the action works even when the original
// proto2_buffer has died. We ensure this behavior by deleting msg
// before using the action.
delete msg;
FooMessage dest;
dest.set_int_field(0);
::proto2::Message* const dest_base = &dest;
a.Perform(make_tuple(true, dest_base));
EXPECT_EQ(2, dest.int_field());
EXPECT_EQ("hi", dest.string_field());
}
#endif // GTEST_HAS_PROTOBUF_
// Tests that SetArgumentPointee<N>(v) sets the variable pointed to by
// the N-th (0-based) argument to v.
TEST(SetArgumentPointeeTest, SetsTheNthPointee) {
typedef void MyFunction(bool, int*, char*);
Action<MyFunction> a = SetArgumentPointee<1>(2);
int n = 0;
char ch = '\0';
a.Perform(make_tuple(true, &n, &ch));
EXPECT_EQ(2, n);
EXPECT_EQ('\0', ch);
a = SetArgumentPointee<2>('a');
n = 0;
ch = '\0';
a.Perform(make_tuple(true, &n, &ch));
EXPECT_EQ(0, n);
EXPECT_EQ('a', ch);
}
#if GTEST_HAS_PROTOBUF_
// Tests that SetArgumentPointee<N>(proto_buffer) sets the v1 protobuf
// variable pointed to by the N-th (0-based) argument to proto_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProtoBufferType) {
TestMessage* const msg = new TestMessage;
msg->set_member("yes");
TestMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, TestMessage*)> a = SetArgumentPointee<1>(*msg);
// SetArgumentPointee<N>(proto_buffer) makes a copy of proto_buffer
// s.t. the action works even when the original proto_buffer has
// died. We ensure this behavior by deleting msg before using the
// action.
delete msg;
TestMessage dest;
EXPECT_FALSE(orig_msg.Equals(dest));
a.Perform(make_tuple(true, &dest));
EXPECT_TRUE(orig_msg.Equals(dest));
}
// Tests that SetArgumentPointee<N>(proto_buffer) sets the
// ::ProtocolMessage variable pointed to by the N-th (0-based)
// argument to proto_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProtoBufferBaseType) {
TestMessage* const msg = new TestMessage;
msg->set_member("yes");
TestMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, ::ProtocolMessage*)> a = SetArgumentPointee<1>(*msg);
// SetArgumentPointee<N>(proto_buffer) makes a copy of proto_buffer
// s.t. the action works even when the original proto_buffer has
// died. We ensure this behavior by deleting msg before using the
// action.
delete msg;
TestMessage dest;
::ProtocolMessage* const dest_base = &dest;
EXPECT_FALSE(orig_msg.Equals(dest));
a.Perform(make_tuple(true, dest_base));
EXPECT_TRUE(orig_msg.Equals(dest));
}
// Tests that SetArgumentPointee<N>(proto2_buffer) sets the v2
// protobuf variable pointed to by the N-th (0-based) argument to
// proto2_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProto2BufferType) {
using testing::internal::FooMessage;
FooMessage* const msg = new FooMessage;
msg->set_int_field(2);
msg->set_string_field("hi");
FooMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, FooMessage*)> a = SetArgumentPointee<1>(*msg);
// SetArgumentPointee<N>(proto2_buffer) makes a copy of
// proto2_buffer s.t. the action works even when the original
// proto2_buffer has died. We ensure this behavior by deleting msg
// before using the action.
delete msg;
FooMessage dest;
dest.set_int_field(0);
a.Perform(make_tuple(true, &dest));
EXPECT_EQ(2, dest.int_field());
EXPECT_EQ("hi", dest.string_field());
}
// Tests that SetArgumentPointee<N>(proto2_buffer) sets the
// proto2::Message variable pointed to by the N-th (0-based) argument
// to proto2_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProto2BufferBaseType) {
using testing::internal::FooMessage;
FooMessage* const msg = new FooMessage;
msg->set_int_field(2);
msg->set_string_field("hi");
FooMessage orig_msg;
orig_msg.CopyFrom(*msg);
Action<void(bool, ::proto2::Message*)> a = SetArgumentPointee<1>(*msg);
// SetArgumentPointee<N>(proto2_buffer) makes a copy of
// proto2_buffer s.t. the action works even when the original
// proto2_buffer has died. We ensure this behavior by deleting msg
// before using the action.
delete msg;
FooMessage dest;
dest.set_int_field(0);
::proto2::Message* const dest_base = &dest;
a.Perform(make_tuple(true, dest_base));
EXPECT_EQ(2, dest.int_field());
EXPECT_EQ("hi", dest.string_field());
}
#endif // GTEST_HAS_PROTOBUF_
// Sample functions and functors for testing Invoke() and etc.
int Nullary() { return 1; }
class NullaryFunctor {
public:
int operator()() { return 2; }
};
bool g_done = false;
void VoidNullary() { g_done = true; }
class VoidNullaryFunctor {
public:
void operator()() { g_done = true; }
};
class Foo {
public:
Foo() : value_(123) {}
int Nullary() const { return value_; }
private:
int value_;
};
// Tests InvokeWithoutArgs(function).
TEST(InvokeWithoutArgsTest, Function) {
// As an action that takes one argument.
Action<int(int)> a = InvokeWithoutArgs(Nullary); // NOLINT
EXPECT_EQ(1, a.Perform(make_tuple(2)));
// As an action that takes two arguments.
Action<int(int, double)> a2 = InvokeWithoutArgs(Nullary); // NOLINT
EXPECT_EQ(1, a2.Perform(make_tuple(2, 3.5)));
// As an action that returns void.
Action<void(int)> a3 = InvokeWithoutArgs(VoidNullary); // NOLINT
g_done = false;
a3.Perform(make_tuple(1));
EXPECT_TRUE(g_done);
}
// Tests InvokeWithoutArgs(functor).
TEST(InvokeWithoutArgsTest, Functor) {
// As an action that takes no argument.
Action<int()> a = InvokeWithoutArgs(NullaryFunctor()); // NOLINT
EXPECT_EQ(2, a.Perform(make_tuple()));
// As an action that takes three arguments.
Action<int(int, double, char)> a2 = // NOLINT
InvokeWithoutArgs(NullaryFunctor());
EXPECT_EQ(2, a2.Perform(make_tuple(3, 3.5, 'a')));
// As an action that returns void.
Action<void()> a3 = InvokeWithoutArgs(VoidNullaryFunctor());
g_done = false;
a3.Perform(make_tuple());
EXPECT_TRUE(g_done);
}
// Tests InvokeWithoutArgs(obj_ptr, method).
TEST(InvokeWithoutArgsTest, Method) {
Foo foo;
Action<int(bool, char)> a = // NOLINT
InvokeWithoutArgs(&foo, &Foo::Nullary);
EXPECT_EQ(123, a.Perform(make_tuple(true, 'a')));
}
// Tests using IgnoreResult() on a polymorphic action.
TEST(IgnoreResultTest, PolymorphicAction) {
Action<void(int)> a = IgnoreResult(Return(5)); // NOLINT
a.Perform(make_tuple(1));
}
// Tests using IgnoreResult() on a monomorphic action.
int ReturnOne() {
g_done = true;
return 1;
}
TEST(IgnoreResultTest, MonomorphicAction) {
g_done = false;
Action<void()> a = IgnoreResult(Invoke(ReturnOne));
a.Perform(make_tuple());
EXPECT_TRUE(g_done);
}
// Tests using IgnoreResult() on an action that returns a class type.
MyNonDefaultConstructible ReturnMyNonDefaultConstructible(double /* x */) {
g_done = true;
return MyNonDefaultConstructible(42);
}
TEST(IgnoreResultTest, ActionReturningClass) {
g_done = false;
Action<void(int)> a =
IgnoreResult(Invoke(ReturnMyNonDefaultConstructible)); // NOLINT
a.Perform(make_tuple(2));
EXPECT_TRUE(g_done);
}
TEST(AssignTest, Int) {
int x = 0;
Action<void(int)> a = Assign(&x, 5);
a.Perform(make_tuple(0));
EXPECT_EQ(5, x);
}
TEST(AssignTest, String) {
::std::string x;
Action<void(void)> a = Assign(&x, "Hello, world");
a.Perform(make_tuple());
EXPECT_EQ("Hello, world", x);
}
TEST(AssignTest, CompatibleTypes) {
double x = 0;
Action<void(int)> a = Assign(&x, 5);
a.Perform(make_tuple(0));
EXPECT_DOUBLE_EQ(5, x);
}
#if !GTEST_OS_WINDOWS_MOBILE
class SetErrnoAndReturnTest : public testing::Test {
protected:
virtual void SetUp() { errno = 0; }
virtual void TearDown() { errno = 0; }
};
TEST_F(SetErrnoAndReturnTest, Int) {
Action<int(void)> a = SetErrnoAndReturn(ENOTTY, -5);
EXPECT_EQ(-5, a.Perform(make_tuple()));
EXPECT_EQ(ENOTTY, errno);
}
TEST_F(SetErrnoAndReturnTest, Ptr) {
int x;
Action<int*(void)> a = SetErrnoAndReturn(ENOTTY, &x);
EXPECT_EQ(&x, a.Perform(make_tuple()));
EXPECT_EQ(ENOTTY, errno);
}
TEST_F(SetErrnoAndReturnTest, CompatibleTypes) {
Action<double()> a = SetErrnoAndReturn(EINVAL, 5);
EXPECT_DOUBLE_EQ(5.0, a.Perform(make_tuple()));
EXPECT_EQ(EINVAL, errno);
}
#endif // !GTEST_OS_WINDOWS_MOBILE
// Tests ByRef().
// Tests that ReferenceWrapper<T> is copyable.
TEST(ByRefTest, IsCopyable) {
const std::string s1 = "Hi";
const std::string s2 = "Hello";
::testing::internal::ReferenceWrapper<const std::string> ref_wrapper =
ByRef(s1);
const std::string& r1 = ref_wrapper;
EXPECT_EQ(&s1, &r1);
// Assigns a new value to ref_wrapper.
ref_wrapper = ByRef(s2);
const std::string& r2 = ref_wrapper;
EXPECT_EQ(&s2, &r2);
::testing::internal::ReferenceWrapper<const std::string> ref_wrapper1 =
ByRef(s1);
// Copies ref_wrapper1 to ref_wrapper.
ref_wrapper = ref_wrapper1;
const std::string& r3 = ref_wrapper;
EXPECT_EQ(&s1, &r3);
}
// Tests using ByRef() on a const value.
TEST(ByRefTest, ConstValue) {
const int n = 0;
// int& ref = ByRef(n); // This shouldn't compile - we have a
// negative compilation test to catch it.
const int& const_ref = ByRef(n);
EXPECT_EQ(&n, &const_ref);
}
// Tests using ByRef() on a non-const value.
TEST(ByRefTest, NonConstValue) {
int n = 0;
// ByRef(n) can be used as either an int&,
int& ref = ByRef(n);
EXPECT_EQ(&n, &ref);
// or a const int&.
const int& const_ref = ByRef(n);
EXPECT_EQ(&n, &const_ref);
}
// Tests explicitly specifying the type when using ByRef().
TEST(ByRefTest, ExplicitType) {
int n = 0;
const int& r1 = ByRef<const int>(n);
EXPECT_EQ(&n, &r1);
// ByRef<char>(n); // This shouldn't compile - we have a negative
// compilation test to catch it.
Derived d;
Derived& r2 = ByRef<Derived>(d);
EXPECT_EQ(&d, &r2);
const Derived& r3 = ByRef<const Derived>(d);
EXPECT_EQ(&d, &r3);
Base& r4 = ByRef<Base>(d);
EXPECT_EQ(&d, &r4);
const Base& r5 = ByRef<const Base>(d);
EXPECT_EQ(&d, &r5);
// The following shouldn't compile - we have a negative compilation
// test for it.
//
// Base b;
// ByRef<Derived>(b);
}
// Tests that Google Mock prints expression ByRef(x) as a reference to x.
TEST(ByRefTest, PrintsCorrectly) {
int n = 42;
::std::stringstream expected, actual;
testing::internal::UniversalPrinter<const int&>::Print(n, &expected);
testing::internal::UniversalPrint(ByRef(n), &actual);
EXPECT_EQ(expected.str(), actual.str());
}
#if GTEST_HAS_STD_UNIQUE_PTR_
std::unique_ptr<int> UniquePtrSource() {
return std::unique_ptr<int>(new int(19));
}
std::vector<std::unique_ptr<int>> VectorUniquePtrSource() {
std::vector<std::unique_ptr<int>> out;
out.emplace_back(new int(7));
return out;
}
TEST(MockMethodTest, CanReturnMoveOnlyValue_Return) {
MockClass mock;
std::unique_ptr<int> i(new int(19));
EXPECT_CALL(mock, MakeUnique()).WillOnce(Return(ByMove(std::move(i))));
EXPECT_CALL(mock, MakeVectorUnique())
.WillOnce(Return(ByMove(VectorUniquePtrSource())));
Derived* d = new Derived;
EXPECT_CALL(mock, MakeUniqueBase())
.WillOnce(Return(ByMove(std::unique_ptr<Derived>(d))));
std::unique_ptr<int> result1 = mock.MakeUnique();
EXPECT_EQ(19, *result1);
std::vector<std::unique_ptr<int>> vresult = mock.MakeVectorUnique();
EXPECT_EQ(1u, vresult.size());
EXPECT_NE(nullptr, vresult[0]);
EXPECT_EQ(7, *vresult[0]);
std::unique_ptr<Base> result2 = mock.MakeUniqueBase();
EXPECT_EQ(d, result2.get());
}
TEST(MockMethodTest, CanReturnMoveOnlyValue_DoAllReturn) {
testing::MockFunction<void()> mock_function;
MockClass mock;
std::unique_ptr<int> i(new int(19));
EXPECT_CALL(mock_function, Call());
EXPECT_CALL(mock, MakeUnique()).WillOnce(DoAll(
InvokeWithoutArgs(&mock_function, &testing::MockFunction<void()>::Call),
Return(ByMove(std::move(i)))));
std::unique_ptr<int> result1 = mock.MakeUnique();
EXPECT_EQ(19, *result1);
}
TEST(MockMethodTest, CanReturnMoveOnlyValue_Invoke) {
MockClass mock;
// Check default value
DefaultValue<std::unique_ptr<int>>::SetFactory([] {
return std::unique_ptr<int>(new int(42));
});
EXPECT_EQ(42, *mock.MakeUnique());
EXPECT_CALL(mock, MakeUnique()).WillRepeatedly(Invoke(UniquePtrSource));
EXPECT_CALL(mock, MakeVectorUnique())
.WillRepeatedly(Invoke(VectorUniquePtrSource));
std::unique_ptr<int> result1 = mock.MakeUnique();
EXPECT_EQ(19, *result1);
std::unique_ptr<int> result2 = mock.MakeUnique();
EXPECT_EQ(19, *result2);
EXPECT_NE(result1, result2);
std::vector<std::unique_ptr<int>> vresult = mock.MakeVectorUnique();
EXPECT_EQ(1u, vresult.size());
EXPECT_NE(nullptr, vresult[0]);
EXPECT_EQ(7, *vresult[0]);
}
#endif // GTEST_HAS_STD_UNIQUE_PTR_
} // Unnamed namespace
googlemock/test/gmock-cardinalities_test.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the built-in cardinalities.
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "gtest/gtest-spi.h"
namespace {
using std::stringstream;
using testing::AnyNumber;
using testing::AtLeast;
using testing::AtMost;
using testing::Between;
using testing::Cardinality;
using testing::CardinalityInterface;
using testing::Exactly;
using testing::IsSubstring;
using testing::MakeCardinality;
class MockFoo {
public:
MockFoo() {}
MOCK_METHOD0(Bar, int()); // NOLINT
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
};
// Tests that Cardinality objects can be default constructed.
TEST(CardinalityTest, IsDefaultConstructable) {
Cardinality c;
}
// Tests that Cardinality objects are copyable.
TEST(CardinalityTest, IsCopyable) {
// Tests the copy constructor.
Cardinality c = Exactly(1);
EXPECT_FALSE(c.IsSatisfiedByCallCount(0));
EXPECT_TRUE(c.IsSatisfiedByCallCount(1));
EXPECT_TRUE(c.IsSaturatedByCallCount(1));
// Tests the assignment operator.
c = Exactly(2);
EXPECT_FALSE(c.IsSatisfiedByCallCount(1));
EXPECT_TRUE(c.IsSatisfiedByCallCount(2));
EXPECT_TRUE(c.IsSaturatedByCallCount(2));
}
TEST(CardinalityTest, IsOverSaturatedByCallCountWorks) {
const Cardinality c = AtMost(5);
EXPECT_FALSE(c.IsOverSaturatedByCallCount(4));
EXPECT_FALSE(c.IsOverSaturatedByCallCount(5));
EXPECT_TRUE(c.IsOverSaturatedByCallCount(6));
}
// Tests that Cardinality::DescribeActualCallCountTo() creates the
// correct description.
TEST(CardinalityTest, CanDescribeActualCallCount) {
stringstream ss0;
Cardinality::DescribeActualCallCountTo(0, &ss0);
EXPECT_EQ("never called", ss0.str());
stringstream ss1;
Cardinality::DescribeActualCallCountTo(1, &ss1);
EXPECT_EQ("called once", ss1.str());
stringstream ss2;
Cardinality::DescribeActualCallCountTo(2, &ss2);
EXPECT_EQ("called twice", ss2.str());
stringstream ss3;
Cardinality::DescribeActualCallCountTo(3, &ss3);
EXPECT_EQ("called 3 times", ss3.str());
}
// Tests AnyNumber()
TEST(AnyNumber, Works) {
const Cardinality c = AnyNumber();
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_FALSE(c.IsSaturatedByCallCount(0));
EXPECT_TRUE(c.IsSatisfiedByCallCount(1));
EXPECT_FALSE(c.IsSaturatedByCallCount(1));
EXPECT_TRUE(c.IsSatisfiedByCallCount(9));
EXPECT_FALSE(c.IsSaturatedByCallCount(9));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "called any number of times",
ss.str());
}
TEST(AnyNumberTest, HasCorrectBounds) {
const Cardinality c = AnyNumber();
EXPECT_EQ(0, c.ConservativeLowerBound());
EXPECT_EQ(INT_MAX, c.ConservativeUpperBound());
}
// Tests AtLeast(n).
TEST(AtLeastTest, OnNegativeNumber) {
EXPECT_NONFATAL_FAILURE({ // NOLINT
AtLeast(-1);
}, "The invocation lower bound must be >= 0");
}
TEST(AtLeastTest, OnZero) {
const Cardinality c = AtLeast(0);
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_FALSE(c.IsSaturatedByCallCount(0));
EXPECT_TRUE(c.IsSatisfiedByCallCount(1));
EXPECT_FALSE(c.IsSaturatedByCallCount(1));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "any number of times",
ss.str());
}
TEST(AtLeastTest, OnPositiveNumber) {
const Cardinality c = AtLeast(2);
EXPECT_FALSE(c.IsSatisfiedByCallCount(0));
EXPECT_FALSE(c.IsSaturatedByCallCount(0));
EXPECT_FALSE(c.IsSatisfiedByCallCount(1));
EXPECT_FALSE(c.IsSaturatedByCallCount(1));
EXPECT_TRUE(c.IsSatisfiedByCallCount(2));
EXPECT_FALSE(c.IsSaturatedByCallCount(2));
stringstream ss1;
AtLeast(1).DescribeTo(&ss1);
EXPECT_PRED_FORMAT2(IsSubstring, "at least once",
ss1.str());
stringstream ss2;
c.DescribeTo(&ss2);
EXPECT_PRED_FORMAT2(IsSubstring, "at least twice",
ss2.str());
stringstream ss3;
AtLeast(3).DescribeTo(&ss3);
EXPECT_PRED_FORMAT2(IsSubstring, "at least 3 times",
ss3.str());
}
TEST(AtLeastTest, HasCorrectBounds) {
const Cardinality c = AtLeast(2);
EXPECT_EQ(2, c.ConservativeLowerBound());
EXPECT_EQ(INT_MAX, c.ConservativeUpperBound());
}
// Tests AtMost(n).
TEST(AtMostTest, OnNegativeNumber) {
EXPECT_NONFATAL_FAILURE({ // NOLINT
AtMost(-1);
}, "The invocation upper bound must be >= 0");
}
TEST(AtMostTest, OnZero) {
const Cardinality c = AtMost(0);
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_TRUE(c.IsSaturatedByCallCount(0));
EXPECT_FALSE(c.IsSatisfiedByCallCount(1));
EXPECT_TRUE(c.IsSaturatedByCallCount(1));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "never called",
ss.str());
}
TEST(AtMostTest, OnPositiveNumber) {
const Cardinality c = AtMost(2);
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_FALSE(c.IsSaturatedByCallCount(0));
EXPECT_TRUE(c.IsSatisfiedByCallCount(1));
EXPECT_FALSE(c.IsSaturatedByCallCount(1));
EXPECT_TRUE(c.IsSatisfiedByCallCount(2));
EXPECT_TRUE(c.IsSaturatedByCallCount(2));
stringstream ss1;
AtMost(1).DescribeTo(&ss1);
EXPECT_PRED_FORMAT2(IsSubstring, "called at most once",
ss1.str());
stringstream ss2;
c.DescribeTo(&ss2);
EXPECT_PRED_FORMAT2(IsSubstring, "called at most twice",
ss2.str());
stringstream ss3;
AtMost(3).DescribeTo(&ss3);
EXPECT_PRED_FORMAT2(IsSubstring, "called at most 3 times",
ss3.str());
}
TEST(AtMostTest, HasCorrectBounds) {
const Cardinality c = AtMost(2);
EXPECT_EQ(0, c.ConservativeLowerBound());
EXPECT_EQ(2, c.ConservativeUpperBound());
}
// Tests Between(m, n).
TEST(BetweenTest, OnNegativeStart) {
EXPECT_NONFATAL_FAILURE({ // NOLINT
Between(-1, 2);
}, "The invocation lower bound must be >= 0, but is actually -1");
}
TEST(BetweenTest, OnNegativeEnd) {
EXPECT_NONFATAL_FAILURE({ // NOLINT
Between(1, -2);
}, "The invocation upper bound must be >= 0, but is actually -2");
}
TEST(BetweenTest, OnStartBiggerThanEnd) {
EXPECT_NONFATAL_FAILURE({ // NOLINT
Between(2, 1);
}, "The invocation upper bound (1) must be >= "
"the invocation lower bound (2)");
}
TEST(BetweenTest, OnZeroStartAndZeroEnd) {
const Cardinality c = Between(0, 0);
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_TRUE(c.IsSaturatedByCallCount(0));
EXPECT_FALSE(c.IsSatisfiedByCallCount(1));
EXPECT_TRUE(c.IsSaturatedByCallCount(1));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "never called",
ss.str());
}
TEST(BetweenTest, OnZeroStartAndNonZeroEnd) {
const Cardinality c = Between(0, 2);
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_FALSE(c.IsSaturatedByCallCount(0));
EXPECT_TRUE(c.IsSatisfiedByCallCount(2));
EXPECT_TRUE(c.IsSaturatedByCallCount(2));
EXPECT_FALSE(c.IsSatisfiedByCallCount(4));
EXPECT_TRUE(c.IsSaturatedByCallCount(4));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "called at most twice",
ss.str());
}
TEST(BetweenTest, OnSameStartAndEnd) {
const Cardinality c = Between(3, 3);
EXPECT_FALSE(c.IsSatisfiedByCallCount(2));
EXPECT_FALSE(c.IsSaturatedByCallCount(2));
EXPECT_TRUE(c.IsSatisfiedByCallCount(3));
EXPECT_TRUE(c.IsSaturatedByCallCount(3));
EXPECT_FALSE(c.IsSatisfiedByCallCount(4));
EXPECT_TRUE(c.IsSaturatedByCallCount(4));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "called 3 times",
ss.str());
}
TEST(BetweenTest, OnDifferentStartAndEnd) {
const Cardinality c = Between(3, 5);
EXPECT_FALSE(c.IsSatisfiedByCallCount(2));
EXPECT_FALSE(c.IsSaturatedByCallCount(2));
EXPECT_TRUE(c.IsSatisfiedByCallCount(3));
EXPECT_FALSE(c.IsSaturatedByCallCount(3));
EXPECT_TRUE(c.IsSatisfiedByCallCount(5));
EXPECT_TRUE(c.IsSaturatedByCallCount(5));
EXPECT_FALSE(c.IsSatisfiedByCallCount(6));
EXPECT_TRUE(c.IsSaturatedByCallCount(6));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "called between 3 and 5 times",
ss.str());
}
TEST(BetweenTest, HasCorrectBounds) {
const Cardinality c = Between(3, 5);
EXPECT_EQ(3, c.ConservativeLowerBound());
EXPECT_EQ(5, c.ConservativeUpperBound());
}
// Tests Exactly(n).
TEST(ExactlyTest, OnNegativeNumber) {
EXPECT_NONFATAL_FAILURE({ // NOLINT
Exactly(-1);
}, "The invocation lower bound must be >= 0");
}
TEST(ExactlyTest, OnZero) {
const Cardinality c = Exactly(0);
EXPECT_TRUE(c.IsSatisfiedByCallCount(0));
EXPECT_TRUE(c.IsSaturatedByCallCount(0));
EXPECT_FALSE(c.IsSatisfiedByCallCount(1));
EXPECT_TRUE(c.IsSaturatedByCallCount(1));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_PRED_FORMAT2(IsSubstring, "never called",
ss.str());
}
TEST(ExactlyTest, OnPositiveNumber) {
const Cardinality c = Exactly(2);
EXPECT_FALSE(c.IsSatisfiedByCallCount(0));
EXPECT_FALSE(c.IsSaturatedByCallCount(0));
EXPECT_TRUE(c.IsSatisfiedByCallCount(2));
EXPECT_TRUE(c.IsSaturatedByCallCount(2));
stringstream ss1;
Exactly(1).DescribeTo(&ss1);
EXPECT_PRED_FORMAT2(IsSubstring, "called once",
ss1.str());
stringstream ss2;
c.DescribeTo(&ss2);
EXPECT_PRED_FORMAT2(IsSubstring, "called twice",
ss2.str());
stringstream ss3;
Exactly(3).DescribeTo(&ss3);
EXPECT_PRED_FORMAT2(IsSubstring, "called 3 times",
ss3.str());
}
TEST(ExactlyTest, HasCorrectBounds) {
const Cardinality c = Exactly(3);
EXPECT_EQ(3, c.ConservativeLowerBound());
EXPECT_EQ(3, c.ConservativeUpperBound());
}
// Tests that a user can make his own cardinality by implementing
// CardinalityInterface and calling MakeCardinality().
class EvenCardinality : public CardinalityInterface {
public:
// Returns true iff call_count calls will satisfy this cardinality.
virtual bool IsSatisfiedByCallCount(int call_count) const {
return (call_count % 2 == 0);
}
// Returns true iff call_count calls will saturate this cardinality.
virtual bool IsSaturatedByCallCount(int /* call_count */) const {
return false;
}
// Describes self to an ostream.
virtual void DescribeTo(::std::ostream* ss) const {
*ss << "called even number of times";
}
};
TEST(MakeCardinalityTest, ConstructsCardinalityFromInterface) {
const Cardinality c = MakeCardinality(new EvenCardinality);
EXPECT_TRUE(c.IsSatisfiedByCallCount(2));
EXPECT_FALSE(c.IsSatisfiedByCallCount(3));
EXPECT_FALSE(c.IsSaturatedByCallCount(10000));
stringstream ss;
c.DescribeTo(&ss);
EXPECT_EQ("called even number of times", ss.str());
}
} // Unnamed namespace
googlemock/test/gmock-generated-actions_test.cc 0 → 100644
View file @ ecf94595
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the built-in actions generated by a script.
#include "gmock/gmock-generated-actions.h"
#include <functional>
#include <sstream>
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace testing {
namespace gmock_generated_actions_test {
using ::std::plus;
using ::std::string;
using testing::get;
using testing::make_tuple;
using testing::tuple;
using testing::tuple_element;
using testing::_;
using testing::Action;
using testing::ActionInterface;
using testing::ByRef;
using testing::DoAll;
using testing::Invoke;
using testing::Return;
using testing::ReturnNew;
using testing::SetArgPointee;
using testing::StaticAssertTypeEq;
using testing::Unused;
using testing::WithArgs;
// For suppressing compiler warnings on conversion possibly losing precision.
inline short Short(short n) { return n; } // NOLINT
inline char Char(char ch) { return ch; }
// Sample functions and functors for testing various actions.
int Nullary() { return 1; }
class NullaryFunctor {
public:
int operator()() { return 2; }
};
bool g_done = false;
bool Unary(int x) { return x < 0; }
const char* Plus1(const char* s) { return s + 1; }
bool ByConstRef(const string& s) { return s == "Hi"; }
const double g_double = 0;
bool ReferencesGlobalDouble(const double& x) { return &x == &g_double; }
string ByNonConstRef(string& s) { return s += "+"; } // NOLINT
struct UnaryFunctor {
int operator()(bool x) { return x ? 1 : -1; }
};
const char* Binary(const char* input, short n) { return input + n; } // NOLINT
void VoidBinary(int, char) { g_done = true; }
int Ternary(int x, char y, short z) { return x + y + z; } // NOLINT
void VoidTernary(int, char, bool) { g_done = true; }
int SumOf4(int a, int b, int c, int d) { return a + b + c + d; }
string Concat4(const char* s1, const char* s2, const char* s3,
const char* s4) {
return string(s1) + s2 + s3 + s4;
}
int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
struct SumOf5Functor {
int operator()(int a, int b, int c, int d, int e) {
return a + b + c + d + e;
}
};
string Concat5(const char* s1, const char* s2, const char* s3,
const char* s4, const char* s5) {
return string(s1) + s2 + s3 + s4 + s5;
}
int SumOf6(int a, int b, int c, int d, int e, int f) {
return a + b + c + d + e + f;
}
struct SumOf6Functor {
int operator()(int a, int b, int c, int d, int e, int f) {
return a + b + c + d + e + f;
}
};
string Concat6(const char* s1, const char* s2, const char* s3,
const char* s4, const char* s5, const char* s6) {
return string(s1) + s2 + s3 + s4 + s5 + s6;
}
string Concat7(const char* s1, const char* s2, const char* s3,
const char* s4, const char* s5, const char* s6,
const char* s7) {
return string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
}
string Concat8(const char* s1, const char* s2, const char* s3,
const char* s4, const char* s5, const char* s6,
const char* s7, const char* s8) {
return string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
}
string Concat9(const char* s1, const char* s2, const char* s3,
const char* s4, const char* s5, const char* s6,
const char* s7, const char* s8, const char* s9) {
return string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
}
string Concat10(const char* s1, const char* s2, const char* s3,
const char* s4, const char* s5, const char* s6,
const char* s7, const char* s8, const char* s9,
const char* s10) {
return string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
}
// A helper that turns the type of a C-string literal from const
// char[N] to const char*.
inline const char* CharPtr(const char* s) { return s; }
// Tests InvokeArgument<N>(...).
// Tests using InvokeArgument with a nullary function.
TEST(InvokeArgumentTest, Function0) {
Action<int(int, int(*)())> a = InvokeArgument<1>(); // NOLINT
EXPECT_EQ(1, a.Perform(make_tuple(2, &Nullary)));
}
// Tests using InvokeArgument with a unary function.
TEST(InvokeArgumentTest, Functor1) {
Action<int(UnaryFunctor)> a = InvokeArgument<0>(true); // NOLINT
EXPECT_EQ(1, a.Perform(make_tuple(UnaryFunctor())));
}
// Tests using InvokeArgument with a 5-ary function.
TEST(InvokeArgumentTest, Function5) {
Action<int(int(*)(int, int, int, int, int))> a = // NOLINT
InvokeArgument<0>(10000, 2000, 300, 40, 5);
EXPECT_EQ(12345, a.Perform(make_tuple(&SumOf5)));
}
// Tests using InvokeArgument with a 5-ary functor.
TEST(InvokeArgumentTest, Functor5) {
Action<int(SumOf5Functor)> a = // NOLINT
InvokeArgument<0>(10000, 2000, 300, 40, 5);
EXPECT_EQ(12345, a.Perform(make_tuple(SumOf5Functor())));
}
// Tests using InvokeArgument with a 6-ary function.
TEST(InvokeArgumentTest, Function6) {
Action<int(int(*)(int, int, int, int, int, int))> a = // NOLINT
InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6);
EXPECT_EQ(123456, a.Perform(make_tuple(&SumOf6)));
}
// Tests using InvokeArgument with a 6-ary functor.
TEST(InvokeArgumentTest, Functor6) {
Action<int(SumOf6Functor)> a = // NOLINT
InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6);
EXPECT_EQ(123456, a.Perform(make_tuple(SumOf6Functor())));
}
// Tests using InvokeArgument with a 7-ary function.
TEST(InvokeArgumentTest, Function7) {
Action<string(string(*)(const char*, const char*, const char*,
const char*, const char*, const char*,
const char*))> a =
InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7");
EXPECT_EQ("1234567", a.Perform(make_tuple(&Concat7)));
}
// Tests using InvokeArgument with a 8-ary function.
TEST(InvokeArgumentTest, Function8) {
Action<string(string(*)(const char*, const char*, const char*,
const char*, const char*, const char*,
const char*, const char*))> a =
InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8");
EXPECT_EQ("12345678", a.Perform(make_tuple(&Concat8)));
}
// Tests using InvokeArgument with a 9-ary function.
TEST(InvokeArgumentTest, Function9) {
Action<string(string(*)(const char*, const char*, const char*,
const char*, const char*, const char*,
const char*, const char*, const char*))> a =
InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9");
EXPECT_EQ("123456789", a.Perform(make_tuple(&Concat9)));
}
// Tests using InvokeArgument with a 10-ary function.
TEST(InvokeArgumentTest, Function10) {
Action<string(string(*)(const char*, const char*, const char*,
const char*, const char*, const char*,
const char*, const char*, const char*,
const char*))> a =
InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9", "0");
EXPECT_EQ("1234567890", a.Perform(make_tuple(&Concat10)));
}
// Tests using InvokeArgument with a function that takes a pointer argument.
TEST(InvokeArgumentTest, ByPointerFunction) {
Action<const char*(const char*(*)(const char* input, short n))> a = // NOLINT
InvokeArgument<0>(static_cast<const char*>("Hi"), Short(1));
EXPECT_STREQ("i", a.Perform(make_tuple(&Binary)));
}
// Tests using InvokeArgument with a function that takes a const char*
// by passing it a C-string literal.
TEST(InvokeArgumentTest, FunctionWithCStringLiteral) {
Action<const char*(const char*(*)(const char* input, short n))> a = // NOLINT
InvokeArgument<0>("Hi", Short(1));
EXPECT_STREQ("i", a.Perform(make_tuple(&Binary)));
}
// Tests using InvokeArgument with a function that takes a const reference.
TEST(InvokeArgumentTest, ByConstReferenceFunction) {
Action<bool(bool(*function)(const string& s))> a = // NOLINT
InvokeArgument<0>(string("Hi"));
// When action 'a' is constructed, it makes a copy of the temporary
// string object passed to it, so it's OK to use 'a' later, when the
// temporary object has already died.
EXPECT_TRUE(a.Perform(make_tuple(&ByConstRef)));
}
// Tests using InvokeArgument with ByRef() and a function that takes a
// const reference.
TEST(InvokeArgumentTest, ByExplicitConstReferenceFunction) {
Action<bool(bool(*)(const double& x))> a = // NOLINT
InvokeArgument<0>(ByRef(g_double));
// The above line calls ByRef() on a const value.
EXPECT_TRUE(a.Perform(make_tuple(&ReferencesGlobalDouble)));
double x = 0;
a = InvokeArgument<0>(ByRef(x)); // This calls ByRef() on a non-const.
EXPECT_FALSE(a.Perform(make_tuple(&ReferencesGlobalDouble)));
}
// Tests using WithArgs and with an action that takes 1 argument.
TEST(WithArgsTest, OneArg) {
Action<bool(double x, int n)> a = WithArgs<1>(Invoke(Unary)); // NOLINT
EXPECT_TRUE(a.Perform(make_tuple(1.5, -1)));
EXPECT_FALSE(a.Perform(make_tuple(1.5, 1)));
}
// Tests using WithArgs with an action that takes 2 arguments.
TEST(WithArgsTest, TwoArgs) {
Action<const char*(const char* s, double x, short n)> a =
WithArgs<0, 2>(Invoke(Binary));
const char s[] = "Hello";
EXPECT_EQ(s + 2, a.Perform(make_tuple(CharPtr(s), 0.5, Short(2))));
}
// Tests using WithArgs with an action that takes 3 arguments.
TEST(WithArgsTest, ThreeArgs) {
Action<int(int, double, char, short)> a = // NOLINT
WithArgs<0, 2, 3>(Invoke(Ternary));
EXPECT_EQ(123, a.Perform(make_tuple(100, 6.5, Char(20), Short(3))));
}
// Tests using WithArgs with an action that takes 4 arguments.
TEST(WithArgsTest, FourArgs) {
Action<string(const char*, const char*, double, const char*, const char*)> a =
WithArgs<4, 3, 1, 0>(Invoke(Concat4));
EXPECT_EQ("4310", a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), 2.5,
CharPtr("3"), CharPtr("4"))));
}
// Tests using WithArgs with an action that takes 5 arguments.
TEST(WithArgsTest, FiveArgs) {
Action<string(const char*, const char*, const char*,
const char*, const char*)> a =
WithArgs<4, 3, 2, 1, 0>(Invoke(Concat5));
EXPECT_EQ("43210",
a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
CharPtr("3"), CharPtr("4"))));
}
// Tests using WithArgs with an action that takes 6 arguments.
TEST(WithArgsTest, SixArgs) {
Action<string(const char*, const char*, const char*)> a =
WithArgs<0, 1, 2, 2, 1, 0>(Invoke(Concat6));
EXPECT_EQ("012210",
a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"))));
}
// Tests using WithArgs with an action that takes 7 arguments.
TEST(WithArgsTest, SevenArgs) {
Action<string(const char*, const char*, const char*, const char*)> a =
WithArgs<0, 1, 2, 3, 2, 1, 0>(Invoke(Concat7));
EXPECT_EQ("0123210",
a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
CharPtr("3"))));
}
// Tests using WithArgs with an action that takes 8 arguments.
TEST(WithArgsTest, EightArgs) {
Action<string(const char*, const char*, const char*, const char*)> a =
WithArgs<0, 1, 2, 3, 0, 1, 2, 3>(Invoke(Concat8));
EXPECT_EQ("01230123",
a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
CharPtr("3"))));
}
// Tests using WithArgs with an action that takes 9 arguments.
TEST(WithArgsTest, NineArgs) {
Action<string(const char*, const char*, const char*, const char*)> a =
WithArgs<0, 1, 2, 3, 1, 2, 3, 2, 3>(Invoke(Concat9));
EXPECT_EQ("012312323",
a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
CharPtr("3"))));
}
// Tests using WithArgs with an action that takes 10 arguments.
TEST(WithArgsTest, TenArgs) {
Action<string(const char*, const char*, const char*, const char*)> a =
WithArgs<0, 1, 2, 3, 2, 1, 0, 1, 2, 3>(Invoke(Concat10));
EXPECT_EQ("0123210123",
a.Perform(make_tuple(CharPtr("0"), CharPtr("1"), CharPtr("2"),
CharPtr("3"))));
}
// Tests using WithArgs with an action that is not Invoke().
class SubstractAction : public ActionInterface<int(int, int)> { // NOLINT
public:
virtual int Perform(const tuple<int, int>& args) {
return get<0>(args) - get<1>(args);
}
};
TEST(WithArgsTest, NonInvokeAction) {
Action<int(const string&, int, int)> a = // NOLINT
WithArgs<2, 1>(MakeAction(new SubstractAction));
EXPECT_EQ(8, a.Perform(make_tuple(string("hi"), 2, 10)));
}
// Tests using WithArgs to pass all original arguments in the original order.
TEST(WithArgsTest, Identity) {
Action<int(int x, char y, short z)> a = // NOLINT
WithArgs<0, 1, 2>(Invoke(Ternary));
EXPECT_EQ(123, a.Perform(make_tuple(100, Char(20), Short(3))));
}
// Tests using WithArgs with repeated arguments.
TEST(WithArgsTest, RepeatedArguments) {
Action<int(bool, int m, int n)> a = // NOLINT
WithArgs<1, 1, 1, 1>(Invoke(SumOf4));
EXPECT_EQ(4, a.Perform(make_tuple(false, 1, 10)));
}
// Tests using WithArgs with reversed argument order.
TEST(WithArgsTest, ReversedArgumentOrder) {
Action<const char*(short n, const char* input)> a = // NOLINT
WithArgs<1, 0>(Invoke(Binary));
const char s[] = "Hello";
EXPECT_EQ(s + 2, a.Perform(make_tuple(Short(2), CharPtr(s))));
}
// Tests using WithArgs with compatible, but not identical, argument types.
TEST(WithArgsTest, ArgsOfCompatibleTypes) {
Action<long(short x, char y, double z, char c)> a = // NOLINT
WithArgs<0, 1, 3>(Invoke(Ternary));
EXPECT_EQ(123, a.Perform(make_tuple(Short(100), Char(20), 5.6, Char(3))));
}
// Tests using WithArgs with an action that returns void.
TEST(WithArgsTest, VoidAction) {
Action<void(double x, char c, int n)> a = WithArgs<2, 1>(Invoke(VoidBinary));
g_done = false;
a.Perform(make_tuple(1.5, 'a', 3));
EXPECT_TRUE(g_done);
}
// Tests DoAll(a1, a2).
TEST(DoAllTest, TwoActions) {
int n = 0;
Action<int(int*)> a = DoAll(SetArgPointee<0>(1), // NOLINT
Return(2));
EXPECT_EQ(2, a.Perform(make_tuple(&n)));
EXPECT_EQ(1, n);
}
// Tests DoAll(a1, a2, a3).
TEST(DoAllTest, ThreeActions) {
int m = 0, n = 0;
Action<int(int*, int*)> a = DoAll(SetArgPointee<0>(1), // NOLINT
SetArgPointee<1>(2),
Return(3));
EXPECT_EQ(3, a.Perform(make_tuple(&m, &n)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
}
// Tests DoAll(a1, a2, a3, a4).
TEST(DoAllTest, FourActions) {
int m = 0, n = 0;
char ch = '\0';
Action<int(int*, int*, char*)> a = // NOLINT
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
Return(3));
EXPECT_EQ(3, a.Perform(make_tuple(&m, &n, &ch)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', ch);
}
// Tests DoAll(a1, a2, a3, a4, a5).
TEST(DoAllTest, FiveActions) {
int m = 0, n = 0;
char a = '\0', b = '\0';
Action<int(int*, int*, char*, char*)> action = // NOLINT
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
SetArgPointee<3>('b'),
Return(3));
EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', a);
EXPECT_EQ('b', b);
}
// Tests DoAll(a1, a2, ..., a6).
TEST(DoAllTest, SixActions) {
int m = 0, n = 0;
char a = '\0', b = '\0', c = '\0';
Action<int(int*, int*, char*, char*, char*)> action = // NOLINT
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
SetArgPointee<3>('b'),
SetArgPointee<4>('c'),
Return(3));
EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', a);
EXPECT_EQ('b', b);
EXPECT_EQ('c', c);
}
// Tests DoAll(a1, a2, ..., a7).
TEST(DoAllTest, SevenActions) {
int m = 0, n = 0;
char a = '\0', b = '\0', c = '\0', d = '\0';
Action<int(int*, int*, char*, char*, char*, char*)> action = // NOLINT
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
SetArgPointee<3>('b'),
SetArgPointee<4>('c'),
SetArgPointee<5>('d'),
Return(3));
EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', a);
EXPECT_EQ('b', b);
EXPECT_EQ('c', c);
EXPECT_EQ('d', d);
}
// Tests DoAll(a1, a2, ..., a8).
TEST(DoAllTest, EightActions) {
int m = 0, n = 0;
char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0';
Action<int(int*, int*, char*, char*, char*, char*, // NOLINT
char*)> action =
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
SetArgPointee<3>('b'),
SetArgPointee<4>('c'),
SetArgPointee<5>('d'),
SetArgPointee<6>('e'),
Return(3));
EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d, &e)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', a);
EXPECT_EQ('b', b);
EXPECT_EQ('c', c);
EXPECT_EQ('d', d);
EXPECT_EQ('e', e);
}
// Tests DoAll(a1, a2, ..., a9).
TEST(DoAllTest, NineActions) {
int m = 0, n = 0;
char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0', f = '\0';
Action<int(int*, int*, char*, char*, char*, char*, // NOLINT
char*, char*)> action =
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
SetArgPointee<3>('b'),
SetArgPointee<4>('c'),
SetArgPointee<5>('d'),
SetArgPointee<6>('e'),
SetArgPointee<7>('f'),
Return(3));
EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d, &e, &f)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', a);
EXPECT_EQ('b', b);
EXPECT_EQ('c', c);
EXPECT_EQ('d', d);
EXPECT_EQ('e', e);
EXPECT_EQ('f', f);
}
// Tests DoAll(a1, a2, ..., a10).
TEST(DoAllTest, TenActions) {
int m = 0, n = 0;
char a = '\0', b = '\0', c = '\0', d = '\0';
char e = '\0', f = '\0', g = '\0';
Action<int(int*, int*, char*, char*, char*, char*, // NOLINT
char*, char*, char*)> action =
DoAll(SetArgPointee<0>(1),
SetArgPointee<1>(2),
SetArgPointee<2>('a'),
SetArgPointee<3>('b'),
SetArgPointee<4>('c'),
SetArgPointee<5>('d'),
SetArgPointee<6>('e'),
SetArgPointee<7>('f'),
SetArgPointee<8>('g'),
Return(3));
EXPECT_EQ(3, action.Perform(make_tuple(&m, &n, &a, &b, &c, &d, &e, &f, &g)));
EXPECT_EQ(1, m);
EXPECT_EQ(2, n);
EXPECT_EQ('a', a);
EXPECT_EQ('b', b);
EXPECT_EQ('c', c);
EXPECT_EQ('d', d);
EXPECT_EQ('e', e);
EXPECT_EQ('f', f);
EXPECT_EQ('g', g);
}
// The ACTION*() macros trigger warning C4100 (unreferenced formal
// parameter) in MSVC with -W4. Unfortunately they cannot be fixed in
// the macro definition, as the warnings are generated when the macro
// is expanded and macro expansion cannot contain #pragma. Therefore
// we suppress them here.
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4100)
#endif
// Tests the ACTION*() macro family.
// Tests that ACTION() can define an action that doesn't reference the
// mock function arguments.
ACTION(Return5) { return 5; }
TEST(ActionMacroTest, WorksWhenNotReferencingArguments) {
Action<double()> a1 = Return5();
EXPECT_DOUBLE_EQ(5, a1.Perform(make_tuple()));
Action<int(double, bool)> a2 = Return5();
EXPECT_EQ(5, a2.Perform(make_tuple(1, true)));
}
// Tests that ACTION() can define an action that returns void.
ACTION(IncrementArg1) { (*arg1)++; }
TEST(ActionMacroTest, WorksWhenReturningVoid) {
Action<void(int, int*)> a1 = IncrementArg1();
int n = 0;
a1.Perform(make_tuple(5, &n));
EXPECT_EQ(1, n);
}
// Tests that the body of ACTION() can reference the type of the
// argument.
ACTION(IncrementArg2) {
StaticAssertTypeEq<int*, arg2_type>();
arg2_type temp = arg2;
(*temp)++;
}
TEST(ActionMacroTest, CanReferenceArgumentType) {
Action<void(int, bool, int*)> a1 = IncrementArg2();
int n = 0;
a1.Perform(make_tuple(5, false, &n));
EXPECT_EQ(1, n);
}
// Tests that the body of ACTION() can reference the argument tuple
// via args_type and args.
ACTION(Sum2) {
StaticAssertTypeEq<tuple<int, char, int*>, args_type>();
args_type args_copy = args;
return get<0>(args_copy) + get<1>(args_copy);
}
TEST(ActionMacroTest, CanReferenceArgumentTuple) {
Action<int(int, char, int*)> a1 = Sum2();
int dummy = 0;
EXPECT_EQ(11, a1.Perform(make_tuple(5, Char(6), &dummy)));
}
// Tests that the body of ACTION() can reference the mock function
// type.
int Dummy(bool flag) { return flag? 1 : 0; }
ACTION(InvokeDummy) {
StaticAssertTypeEq<int(bool), function_type>();
function_type* fp = &Dummy;
return (*fp)(true);
}
TEST(ActionMacroTest, CanReferenceMockFunctionType) {
Action<int(bool)> a1 = InvokeDummy();
EXPECT_EQ(1, a1.Perform(make_tuple(true)));
EXPECT_EQ(1, a1.Perform(make_tuple(false)));
}
// Tests that the body of ACTION() can reference the mock function's
// return type.
ACTION(InvokeDummy2) {
StaticAssertTypeEq<int, return_type>();
return_type result = Dummy(true);
return result;
}
TEST(ActionMacroTest, CanReferenceMockFunctionReturnType) {
Action<int(bool)> a1 = InvokeDummy2();
EXPECT_EQ(1, a1.Perform(make_tuple(true)));
EXPECT_EQ(1, a1.Perform(make_tuple(false)));
}
// Tests that ACTION() works for arguments passed by const reference.
ACTION(ReturnAddrOfConstBoolReferenceArg) {
StaticAssertTypeEq<const bool&, arg1_type>();
return &arg1;
}
TEST(ActionMacroTest, WorksForConstReferenceArg) {
Action<const bool*(int, const bool&)> a = ReturnAddrOfConstBoolReferenceArg();
const bool b = false;
EXPECT_EQ(&b, a.Perform(tuple<int, const bool&>(0, b)));
}
// Tests that ACTION() works for arguments passed by non-const reference.
ACTION(ReturnAddrOfIntReferenceArg) {
StaticAssertTypeEq<int&, arg0_type>();
return &arg0;
}
TEST(ActionMacroTest, WorksForNonConstReferenceArg) {
Action<int*(int&, bool, int)> a = ReturnAddrOfIntReferenceArg();
int n = 0;
EXPECT_EQ(&n, a.Perform(tuple<int&, bool, int>(n, true, 1)));
}
// Tests that ACTION() can be used in a namespace.
namespace action_test {
ACTION(Sum) { return arg0 + arg1; }
} // namespace action_test
TEST(ActionMacroTest, WorksInNamespace) {
Action<int(int, int)> a1 = action_test::Sum();
EXPECT_EQ(3, a1.Perform(make_tuple(1, 2)));
}
// Tests that the same ACTION definition works for mock functions with
// different argument numbers.
ACTION(PlusTwo) { return arg0 + 2; }
TEST(ActionMacroTest, WorksForDifferentArgumentNumbers) {
Action<int(int)> a1 = PlusTwo();
EXPECT_EQ(4, a1.Perform(make_tuple(2)));
Action<double(float, void*)> a2 = PlusTwo();
int dummy;
EXPECT_DOUBLE_EQ(6, a2.Perform(make_tuple(4.0f, &dummy)));
}
// Tests that ACTION_P can define a parameterized action.
ACTION_P(Plus, n) { return arg0 + n; }
TEST(ActionPMacroTest, DefinesParameterizedAction) {
Action<int(int m, bool t)> a1 = Plus(9);
EXPECT_EQ(10, a1.Perform(make_tuple(1, true)));
}
// Tests that the body of ACTION_P can reference the argument types
// and the parameter type.
ACTION_P(TypedPlus, n) {
arg0_type t1 = arg0;
n_type t2 = n;
return t1 + t2;
}
TEST(ActionPMacroTest, CanReferenceArgumentAndParameterTypes) {
Action<int(char m, bool t)> a1 = TypedPlus(9);
EXPECT_EQ(10, a1.Perform(make_tuple(Char(1), true)));
}
// Tests that a parameterized action can be used in any mock function
// whose type is compatible.
TEST(ActionPMacroTest, WorksInCompatibleMockFunction) {
Action<std::string(const std::string& s)> a1 = Plus("tail");
const std::string re = "re";
EXPECT_EQ("retail", a1.Perform(make_tuple(re)));
}
// Tests that we can use ACTION*() to define actions overloaded on the
// number of parameters.
ACTION(OverloadedAction) { return arg0 ? arg1 : "hello"; }
ACTION_P(OverloadedAction, default_value) {
return arg0 ? arg1 : default_value;
}
ACTION_P2(OverloadedAction, true_value, false_value) {
return arg0 ? true_value : false_value;
}
TEST(ActionMacroTest, CanDefineOverloadedActions) {
typedef Action<const char*(bool, const char*)> MyAction;
const MyAction a1 = OverloadedAction();
EXPECT_STREQ("hello", a1.Perform(make_tuple(false, CharPtr("world"))));
EXPECT_STREQ("world", a1.Perform(make_tuple(true, CharPtr("world"))));
const MyAction a2 = OverloadedAction("hi");
EXPECT_STREQ("hi", a2.Perform(make_tuple(false, CharPtr("world"))));
EXPECT_STREQ("world", a2.Perform(make_tuple(true, CharPtr("world"))));
const MyAction a3 = OverloadedAction("hi", "you");
EXPECT_STREQ("hi", a3.Perform(make_tuple(true, CharPtr("world"))));
EXPECT_STREQ("you", a3.Perform(make_tuple(false, CharPtr("world"))));
}
// Tests ACTION_Pn where n >= 3.
ACTION_P3(Plus, m, n, k) { return arg0 + m + n + k; }
TEST(ActionPnMacroTest, WorksFor3Parameters) {
Action<double(int m, bool t)> a1 = Plus(100, 20, 3.4);
EXPECT_DOUBLE_EQ(3123.4, a1.Perform(make_tuple(3000, true)));
Action<std::string(const std::string& s)> a2 = Plus("tail", "-", ">");
const std::string re = "re";
EXPECT_EQ("retail->", a2.Perform(make_tuple(re)));
}
ACTION_P4(Plus, p0, p1, p2, p3) { return arg0 + p0 + p1 + p2 + p3; }
TEST(ActionPnMacroTest, WorksFor4Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4);
EXPECT_EQ(10 + 1 + 2 + 3 + 4, a1.Perform(make_tuple(10)));
}
ACTION_P5(Plus, p0, p1, p2, p3, p4) { return arg0 + p0 + p1 + p2 + p3 + p4; }
TEST(ActionPnMacroTest, WorksFor5Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4, 5);
EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5, a1.Perform(make_tuple(10)));
}
ACTION_P6(Plus, p0, p1, p2, p3, p4, p5) {
return arg0 + p0 + p1 + p2 + p3 + p4 + p5;
}
TEST(ActionPnMacroTest, WorksFor6Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6);
EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6, a1.Perform(make_tuple(10)));
}
ACTION_P7(Plus, p0, p1, p2, p3, p4, p5, p6) {
return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6;
}
TEST(ActionPnMacroTest, WorksFor7Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7);
EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7, a1.Perform(make_tuple(10)));
}
ACTION_P8(Plus, p0, p1, p2, p3, p4, p5, p6, p7) {
return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7;
}
TEST(ActionPnMacroTest, WorksFor8Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8);
EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, a1.Perform(make_tuple(10)));
}
ACTION_P9(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8) {
return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8;
}
TEST(ActionPnMacroTest, WorksFor9Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9);
EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9, a1.Perform(make_tuple(10)));
}
ACTION_P10(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8, last_param) {
arg0_type t0 = arg0;
last_param_type t9 = last_param;
return t0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + t9;
}
TEST(ActionPnMacroTest, WorksFor10Parameters) {
Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10,
a1.Perform(make_tuple(10)));
}
// Tests that the action body can promote the parameter types.
ACTION_P2(PadArgument, prefix, suffix) {
// The following lines promote the two parameters to desired types.
std::string prefix_str(prefix);
char suffix_char = static_cast<char>(suffix);
return prefix_str + arg0 + suffix_char;
}
TEST(ActionPnMacroTest, SimpleTypePromotion) {
Action<std::string(const char*)> no_promo =
PadArgument(std::string("foo"), 'r');
Action<std::string(const char*)> promo =
PadArgument("foo", static_cast<int>('r'));
EXPECT_EQ("foobar", no_promo.Perform(make_tuple(CharPtr("ba"))));
EXPECT_EQ("foobar", promo.Perform(make_tuple(CharPtr("ba"))));
}
// Tests that we can partially restrict parameter types using a
// straight-forward pattern.
// Defines a generic action that doesn't restrict the types of its
// parameters.
ACTION_P3(ConcatImpl, a, b, c) {
std::stringstream ss;
ss << a << b << c;
return ss.str();
}
// Next, we try to restrict that either the first parameter is a
// string, or the second parameter is an int.
// Defines a partially specialized wrapper that restricts the first
// parameter to std::string.
template <typename T1, typename T2>
// ConcatImplActionP3 is the class template ACTION_P3 uses to
// implement ConcatImpl. We shouldn't change the name as this
// pattern requires the user to use it directly.
ConcatImplActionP3<std::string, T1, T2>
Concat(const std::string& a, T1 b, T2 c) {
GTEST_INTENTIONAL_CONST_COND_PUSH_()
if (true) {
GTEST_INTENTIONAL_CONST_COND_POP_()
// This branch verifies that ConcatImpl() can be invoked without
// explicit template arguments.
return ConcatImpl(a, b, c);
} else {
// This branch verifies that ConcatImpl() can also be invoked with
// explicit template arguments. It doesn't really need to be
// executed as this is a compile-time verification.
return ConcatImpl<std::string, T1, T2>(a, b, c);
}
}
// Defines another partially specialized wrapper that restricts the
// second parameter to int.
template <typename T1, typename T2>
ConcatImplActionP3<T1, int, T2>
Concat(T1 a, int b, T2 c) {
return ConcatImpl(a, b, c);
}
TEST(ActionPnMacroTest, CanPartiallyRestrictParameterTypes) {
Action<const std::string()> a1 = Concat("Hello", "1", 2);
EXPECT_EQ("Hello12", a1.Perform(make_tuple()));
a1 = Concat(1, 2, 3);
EXPECT_EQ("123", a1.Perform(make_tuple()));
}
// Verifies the type of an ACTION*.
ACTION(DoFoo) {}
ACTION_P(DoFoo, p) {}
ACTION_P2(DoFoo, p0, p1) {}
TEST(ActionPnMacroTest, TypesAreCorrect) {
// DoFoo() must be assignable to a DoFooAction variable.
DoFooAction a0 = DoFoo();
// DoFoo(1) must be assignable to a DoFooActionP variable.
DoFooActionP<int> a1 = DoFoo(1);
// DoFoo(p1, ..., pk) must be assignable to a DoFooActionPk
// variable, and so on.
DoFooActionP2<int, char> a2 = DoFoo(1, '2');
PlusActionP3<int, int, char> a3 = Plus(1, 2, '3');
PlusActionP4<int, int, int, char> a4 = Plus(1, 2, 3, '4');
PlusActionP5<int, int, int, int, char> a5 = Plus(1, 2, 3, 4, '5');
PlusActionP6<int, int, int, int, int, char> a6 = Plus(1, 2, 3, 4, 5, '6');
PlusActionP7<int, int, int, int, int, int, char> a7 =
Plus(1, 2, 3, 4, 5, 6, '7');
PlusActionP8<int, int, int, int, int, int, int, char> a8 =
Plus(1, 2, 3, 4, 5, 6, 7, '8');
PlusActionP9<int, int, int, int, int, int, int, int, char> a9 =
Plus(1, 2, 3, 4, 5, 6, 7, 8, '9');
PlusActionP10<int, int, int, int, int, int, int, int, int, char> a10 =
Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, '0');
// Avoid "unused variable" warnings.
(void)a0;
(void)a1;
(void)a2;
(void)a3;
(void)a4;
(void)a5;
(void)a6;
(void)a7;
(void)a8;
(void)a9;
(void)a10;
}
// Tests that an ACTION_P*() action can be explicitly instantiated
// with reference-typed parameters.
ACTION_P(Plus1, x) { return x; }
ACTION_P2(Plus2, x, y) { return x + y; }
ACTION_P3(Plus3, x, y, z) { return x + y + z; }
ACTION_P10(Plus10, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
return a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9;
}
TEST(ActionPnMacroTest, CanExplicitlyInstantiateWithReferenceTypes) {
int x = 1, y = 2, z = 3;
const tuple<> empty = make_tuple();
Action<int()> a = Plus1<int&>(x);
EXPECT_EQ(1, a.Perform(empty));
a = Plus2<const int&, int&>(x, y);
EXPECT_EQ(3, a.Perform(empty));
a = Plus3<int&, const int&, int&>(x, y, z);
EXPECT_EQ(6, a.Perform(empty));
int n[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
a = Plus10<const int&, int&, const int&, int&, const int&, int&, const int&,
int&, const int&, int&>(n[0], n[1], n[2], n[3], n[4], n[5], n[6], n[7],
n[8], n[9]);
EXPECT_EQ(55, a.Perform(empty));
}
class NullaryConstructorClass {
public:
NullaryConstructorClass() : value_(123) {}
int value_;
};
// Tests using ReturnNew() with a nullary constructor.
TEST(ReturnNewTest, NoArgs) {
Action<NullaryConstructorClass*()> a = ReturnNew<NullaryConstructorClass>();
NullaryConstructorClass* c = a.Perform(make_tuple());
EXPECT_EQ(123, c->value_);
delete c;
}
class UnaryConstructorClass {
public:
explicit UnaryConstructorClass(int value) : value_(value) {}
int value_;
};
// Tests using ReturnNew() with a unary constructor.
TEST(ReturnNewTest, Unary) {
Action<UnaryConstructorClass*()> a = ReturnNew<UnaryConstructorClass>(4000);
UnaryConstructorClass* c = a.Perform(make_tuple());
EXPECT_EQ(4000, c->value_);
delete c;
}
TEST(ReturnNewTest, UnaryWorksWhenMockMethodHasArgs) {
Action<UnaryConstructorClass*(bool, int)> a =
ReturnNew<UnaryConstructorClass>(4000);
UnaryConstructorClass* c = a.Perform(make_tuple(false, 5));
EXPECT_EQ(4000, c->value_);
delete c;
}
TEST(ReturnNewTest, UnaryWorksWhenMockMethodReturnsPointerToConst) {
Action<const UnaryConstructorClass*()> a =
ReturnNew<UnaryConstructorClass>(4000);
const UnaryConstructorClass* c = a.Perform(make_tuple());
EXPECT_EQ(4000, c->value_);
delete c;
}
class TenArgConstructorClass {
public:
TenArgConstructorClass(int a1, int a2, int a3, int a4, int a5,
int a6, int a7, int a8, int a9, int a10)
: value_(a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9 + a10) {
}
int value_;
};
// Tests using ReturnNew() with a 10-argument constructor.
TEST(ReturnNewTest, ConstructorThatTakes10Arguments) {
Action<TenArgConstructorClass*()> a =
ReturnNew<TenArgConstructorClass>(1000000000, 200000000, 30000000,
4000000, 500000, 60000,
7000, 800, 90, 0);
TenArgConstructorClass* c = a.Perform(make_tuple());
EXPECT_EQ(1234567890, c->value_);
delete c;
}
// Tests that ACTION_TEMPLATE works when there is no value parameter.
ACTION_TEMPLATE(CreateNew,
HAS_1_TEMPLATE_PARAMS(typename, T),
AND_0_VALUE_PARAMS()) {
return new T;
}
TEST(ActionTemplateTest, WorksWithoutValueParam) {
const Action<int*()> a = CreateNew<int>();
int* p = a.Perform(make_tuple());
delete p;
}
// Tests that ACTION_TEMPLATE works when there are value parameters.
ACTION_TEMPLATE(CreateNew,
HAS_1_TEMPLATE_PARAMS(typename, T),
AND_1_VALUE_PARAMS(a0)) {
return new T(a0);
}
TEST(ActionTemplateTest, WorksWithValueParams) {
const Action<int*()> a = CreateNew<int>(42);
int* p = a.Perform(make_tuple());
EXPECT_EQ(42, *p);
delete p;
}
// Tests that ACTION_TEMPLATE works for integral template parameters.
ACTION_TEMPLATE(MyDeleteArg,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_0_VALUE_PARAMS()) {
delete get<k>(args);
}
// Resets a bool variable in the destructor.
class BoolResetter {
public:
explicit BoolResetter(bool* value) : value_(value) {}
~BoolResetter() { *value_ = false; }
private:
bool* value_;
};
TEST(ActionTemplateTest, WorksForIntegralTemplateParams) {
const Action<void(int*, BoolResetter*)> a = MyDeleteArg<1>();
int n = 0;
bool b = true;
BoolResetter* resetter = new BoolResetter(&b);
a.Perform(make_tuple(&n, resetter));
EXPECT_FALSE(b); // Verifies that resetter is deleted.
}
// Tests that ACTION_TEMPLATES works for template template parameters.
ACTION_TEMPLATE(ReturnSmartPointer,
HAS_1_TEMPLATE_PARAMS(template <typename Pointee> class,
Pointer),
AND_1_VALUE_PARAMS(pointee)) {
return Pointer<pointee_type>(new pointee_type(pointee));
}
TEST(ActionTemplateTest, WorksForTemplateTemplateParameters) {
using ::testing::internal::linked_ptr;
const Action<linked_ptr<int>()> a = ReturnSmartPointer<linked_ptr>(42);
linked_ptr<int> p = a.Perform(make_tuple());
EXPECT_EQ(42, *p);
}
// Tests that ACTION_TEMPLATE works for 10 template parameters.
template <typename T1, typename T2, typename T3, int k4, bool k5,
unsigned int k6, typename T7, typename T8, typename T9>
struct GiantTemplate {
public:
explicit GiantTemplate(int a_value) : value(a_value) {}
int value;
};
ACTION_TEMPLATE(ReturnGiant,
HAS_10_TEMPLATE_PARAMS(
typename, T1,
typename, T2,
typename, T3,
int, k4,
bool, k5,
unsigned int, k6,
class, T7,
class, T8,
class, T9,
template <typename T> class, T10),
AND_1_VALUE_PARAMS(value)) {
return GiantTemplate<T10<T1>, T2, T3, k4, k5, k6, T7, T8, T9>(value);
}
TEST(ActionTemplateTest, WorksFor10TemplateParameters) {
using ::testing::internal::linked_ptr;
typedef GiantTemplate<linked_ptr<int>, bool, double, 5,
true, 6, char, unsigned, int> Giant;
const Action<Giant()> a = ReturnGiant<
int, bool, double, 5, true, 6, char, unsigned, int, linked_ptr>(42);
Giant giant = a.Perform(make_tuple());
EXPECT_EQ(42, giant.value);
}
// Tests that ACTION_TEMPLATE works for 10 value parameters.
ACTION_TEMPLATE(ReturnSum,
HAS_1_TEMPLATE_PARAMS(typename, Number),
AND_10_VALUE_PARAMS(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10)) {
return static_cast<Number>(v1) + v2 + v3 + v4 + v5 + v6 + v7 + v8 + v9 + v10;
}
TEST(ActionTemplateTest, WorksFor10ValueParameters) {
const Action<int()> a = ReturnSum<int>(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
EXPECT_EQ(55, a.Perform(make_tuple()));
}
// Tests that ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded
// on the number of value parameters.
ACTION(ReturnSum) { return 0; }
ACTION_P(ReturnSum, x) { return x; }
ACTION_TEMPLATE(ReturnSum,
HAS_1_TEMPLATE_PARAMS(typename, Number),
AND_2_VALUE_PARAMS(v1, v2)) {
return static_cast<Number>(v1) + v2;
}
ACTION_TEMPLATE(ReturnSum,
HAS_1_TEMPLATE_PARAMS(typename, Number),
AND_3_VALUE_PARAMS(v1, v2, v3)) {
return static_cast<Number>(v1) + v2 + v3;
}
ACTION_TEMPLATE(ReturnSum,
HAS_2_TEMPLATE_PARAMS(typename, Number, int, k),
AND_4_VALUE_PARAMS(v1, v2, v3, v4)) {
return static_cast<Number>(v1) + v2 + v3 + v4 + k;
}
TEST(ActionTemplateTest, CanBeOverloadedOnNumberOfValueParameters) {
const Action<int()> a0 = ReturnSum();
const Action<int()> a1 = ReturnSum(1);
const Action<int()> a2 = ReturnSum<int>(1, 2);
const Action<int()> a3 = ReturnSum<int>(1, 2, 3);
const Action<int()> a4 = ReturnSum<int, 10000>(2000, 300, 40, 5);
EXPECT_EQ(0, a0.Perform(make_tuple()));
EXPECT_EQ(1, a1.Perform(make_tuple()));
EXPECT_EQ(3, a2.Perform(make_tuple()));
EXPECT_EQ(6, a3.Perform(make_tuple()));
EXPECT_EQ(12345, a4.Perform(make_tuple()));
}
#ifdef _MSC_VER
# pragma warning(pop)
#endif
} // namespace gmock_generated_actions_test
} // namespace testing
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