Unverified Commit 120863ba authored by Romain Deterre's avatar Romain Deterre Committed by GitHub
Browse files

Update Google Test to v1.10.0 (#840)

This commit updates the version of Google Test from 1.8 to 1.10.
parent b2f89386
#!/usr/bin/env sh
set -evx
. ci/get-nprocessors.sh
# if possible, ask for the precise number of processors,
# otherwise take 2 processors as reasonable default; see
# https://docs.travis-ci.com/user/speeding-up-the-build/#Makefile-optimization
if [ -x /usr/bin/getconf ]; then
NPROCESSORS=$(/usr/bin/getconf _NPROCESSORS_ONLN)
else
NPROCESSORS=2
fi
# as of 2017-09-04 Travis CI reports 32 processors, but GCC build
# crashes if parallelized too much (maybe memory consumption problem),
# so limit to 4 processors for the time being.
if [ $NPROCESSORS -gt 4 ] ; then
echo "$0:Note: Limiting processors to use by make from $NPROCESSORS to 4."
NPROCESSORS=4
fi
# Tell make to use the processors. No preceding '-' required.
MAKEFLAGS="j${NPROCESSORS}"
export MAKEFLAGS
env | sort
# Set default values to OFF for these variables if not specified.
: "${NO_EXCEPTION:=OFF}"
: "${NO_RTTI:=OFF}"
: "${COMPILER_IS_GNUCXX:=OFF}"
mkdir build || true
cd build
cmake -Dgtest_build_samples=ON \
-Dgtest_build_tests=ON \
-Dgmock_build_tests=ON \
-Dcxx_no_exception=$NO_EXCEPTION \
-Dcxx_no_rtti=$NO_RTTI \
-DCMAKE_COMPILER_IS_GNUCXX=$COMPILER_IS_GNUCXX \
-DCMAKE_CXX_FLAGS=$CXX_FLAGS \
-DCMAKE_BUILD_TYPE=$BUILD_TYPE \
..
make
CTEST_OUTPUT_ON_FAILURE=1 make test
########################################################################
# Note: CMake support is community-based. The maintainers do not use CMake
# internally.
#
# CMake build script for Google Mock.
#
# To run the tests for Google Mock itself on Linux, use 'make test' or
# ctest. You can select which tests to run using 'ctest -R regex'.
# For more options, run 'ctest --help'.
# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to
# make it prominent in the GUI.
option(BUILD_SHARED_LIBS "Build shared libraries (DLLs)." OFF)
option(gmock_build_tests "Build all of Google Mock's own tests." OFF)
# A directory to find Google Test sources.
......@@ -37,8 +36,13 @@ endif()
# as ${gmock_SOURCE_DIR} and to the root binary directory as
# ${gmock_BINARY_DIR}.
# Language "C" is required for find_package(Threads).
project(gmock CXX C)
cmake_minimum_required(VERSION 2.6.2)
if (CMAKE_VERSION VERSION_LESS 3.0)
project(gmock CXX C)
else()
cmake_policy(SET CMP0048 NEW)
project(gmock VERSION ${GOOGLETEST_VERSION} LANGUAGES CXX C)
endif()
cmake_minimum_required(VERSION 2.6.4)
if (COMMAND set_up_hermetic_build)
set_up_hermetic_build()
......@@ -48,7 +52,17 @@ endif()
# targets to the current scope. We are placing Google Test's binary
# directory in a subdirectory of our own as VC compilation may break
# if they are the same (the default).
add_subdirectory("${gtest_dir}" "${gmock_BINARY_DIR}/gtest")
add_subdirectory("${gtest_dir}" "${gmock_BINARY_DIR}/${gtest_dir}")
# These commands only run if this is the main project
if(CMAKE_PROJECT_NAME STREQUAL "gmock" OR CMAKE_PROJECT_NAME STREQUAL "googletest-distribution")
# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to
# make it prominent in the GUI.
option(BUILD_SHARED_LIBS "Build shared libraries (DLLs)." OFF)
else()
mark_as_advanced(gmock_build_tests)
endif()
# Although Google Test's CMakeLists.txt calls this function, the
# changes there don't affect the current scope. Therefore we have to
......@@ -56,22 +70,13 @@ add_subdirectory("${gtest_dir}" "${gmock_BINARY_DIR}/gtest")
config_compiler_and_linker() # from ${gtest_dir}/cmake/internal_utils.cmake
# Adds Google Mock's and Google Test's header directories to the search path.
include_directories("${gmock_SOURCE_DIR}/include"
"${gmock_SOURCE_DIR}"
"${gtest_SOURCE_DIR}/include"
# This directory is needed to build directly from Google
# Test sources.
"${gtest_SOURCE_DIR}")
# Summary of tuple support for Microsoft Visual Studio:
# Compiler version(MS) version(cmake) Support
# ---------- ----------- -------------- -----------------------------
# <= VS 2010 <= 10 <= 1600 Use Google Tests's own tuple.
# VS 2012 11 1700 std::tr1::tuple + _VARIADIC_MAX=10
# VS 2013 12 1800 std::tr1::tuple
if (MSVC AND MSVC_VERSION EQUAL 1700)
add_definitions(/D _VARIADIC_MAX=10)
endif()
set(gmock_build_include_dirs
"${gmock_SOURCE_DIR}/include"
"${gmock_SOURCE_DIR}"
"${gtest_SOURCE_DIR}/include"
# This directory is needed to build directly from Google Test sources.
"${gtest_SOURCE_DIR}")
include_directories(${gmock_build_include_dirs})
########################################################################
#
......@@ -81,32 +86,39 @@ endif()
# Google Mock libraries. We build them using more strict warnings than what
# are used for other targets, to ensure that Google Mock can be compiled by
# a user aggressive about warnings.
cxx_library(gmock
"${cxx_strict}"
"${gtest_dir}/src/gtest-all.cc"
src/gmock-all.cc)
cxx_library(gmock_main
"${cxx_strict}"
"${gtest_dir}/src/gtest-all.cc"
src/gmock-all.cc
src/gmock_main.cc)
if (MSVC)
cxx_library(gmock
"${cxx_strict}"
"${gtest_dir}/src/gtest-all.cc"
src/gmock-all.cc)
cxx_library(gmock_main
"${cxx_strict}"
"${gtest_dir}/src/gtest-all.cc"
src/gmock-all.cc
src/gmock_main.cc)
else()
cxx_library(gmock "${cxx_strict}" src/gmock-all.cc)
target_link_libraries(gmock PUBLIC gtest)
cxx_library(gmock_main "${cxx_strict}" src/gmock_main.cc)
target_link_libraries(gmock_main PUBLIC gmock)
endif()
# If the CMake version supports it, attach header directory information
# to the targets for when we are part of a parent build (ie being pulled
# in via add_subdirectory() rather than being a standalone build).
if (DEFINED CMAKE_VERSION AND NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.11")
target_include_directories(gmock INTERFACE "${gmock_SOURCE_DIR}/include")
target_include_directories(gmock_main INTERFACE "${gmock_SOURCE_DIR}/include")
target_include_directories(gmock SYSTEM INTERFACE
"$<BUILD_INTERFACE:${gmock_build_include_dirs}>"
"$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
target_include_directories(gmock_main SYSTEM INTERFACE
"$<BUILD_INTERFACE:${gmock_build_include_dirs}>"
"$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
endif()
########################################################################
#
# Install rules
install(TARGETS gmock gmock_main
DESTINATION lib)
install(DIRECTORY ${gmock_SOURCE_DIR}/include/gmock
DESTINATION include)
install_project(gmock gmock_main)
########################################################################
#
......@@ -124,15 +136,37 @@ if (gmock_build_tests)
# 'make test' or ctest.
enable_testing()
if (WIN32)
file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>/RunTest.ps1"
CONTENT
"$project_bin = \"${CMAKE_BINARY_DIR}/bin/$<CONFIG>\"
$env:Path = \"$project_bin;$env:Path\"
& $args")
elseif (MINGW OR CYGWIN)
file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/RunTest.ps1"
CONTENT
"$project_bin = (cygpath --windows ${CMAKE_BINARY_DIR}/bin)
$env:Path = \"$project_bin;$env:Path\"
& $args")
endif()
if (MINGW OR CYGWIN)
if (CMAKE_VERSION VERSION_LESS "2.8.12")
add_compile_options("-Wa,-mbig-obj")
else()
add_definitions("-Wa,-mbig-obj")
endif()
endif()
############################################################
# C++ tests built with standard compiler flags.
cxx_test(gmock-actions_test gmock_main)
cxx_test(gmock-cardinalities_test gmock_main)
cxx_test(gmock_ex_test gmock_main)
cxx_test(gmock-function-mocker_test gmock_main)
cxx_test(gmock-generated-actions_test gmock_main)
cxx_test(gmock-generated-function-mockers_test gmock_main)
cxx_test(gmock-generated-internal-utils_test gmock_main)
cxx_test(gmock-generated-matchers_test gmock_main)
cxx_test(gmock-internal-utils_test gmock_main)
cxx_test(gmock-matchers_test gmock_main)
......@@ -143,7 +177,7 @@ if (gmock_build_tests)
cxx_test(gmock_link_test gmock_main test/gmock_link2_test.cc)
cxx_test(gmock_test gmock_main)
if (CMAKE_USE_PTHREADS_INIT)
if (DEFINED GTEST_HAS_PTHREAD)
cxx_test(gmock_stress_test gmock)
endif()
......@@ -154,23 +188,20 @@ if (gmock_build_tests)
############################################################
# C++ tests built with non-standard compiler flags.
cxx_library(gmock_main_no_exception "${cxx_no_exception}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
cxx_library(gmock_main_no_rtti "${cxx_no_rtti}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
if (MSVC)
cxx_library(gmock_main_no_exception "${cxx_no_exception}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
if (NOT MSVC OR MSVC_VERSION LESS 1600) # 1600 is Visual Studio 2010.
# Visual Studio 2010, 2012, and 2013 define symbols in std::tr1 that
# conflict with our own definitions. Therefore using our own tuple does not
# work on those compilers.
cxx_library(gmock_main_use_own_tuple "${cxx_use_own_tuple}"
cxx_library(gmock_main_no_rtti "${cxx_no_rtti}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
cxx_test_with_flags(gmock_use_own_tuple_test "${cxx_use_own_tuple}"
gmock_main_use_own_tuple test/gmock-spec-builders_test.cc)
endif()
else()
cxx_library(gmock_main_no_exception "${cxx_no_exception}" src/gmock_main.cc)
target_link_libraries(gmock_main_no_exception PUBLIC gmock)
cxx_library(gmock_main_no_rtti "${cxx_no_rtti}" src/gmock_main.cc)
target_link_libraries(gmock_main_no_rtti PUBLIC gmock)
endif()
cxx_test_with_flags(gmock-more-actions_no_exception_test "${cxx_no_exception}"
gmock_main_no_exception test/gmock-more-actions_test.cc)
......
# Googletest Mocking (gMock) Framework
### Overview
Google's framework for writing and using C++ mock classes. It can help you
derive better designs of your system and write better tests.
It is inspired by:
* [jMock](http://www.jmock.org/),
* [EasyMock](http://www.easymock.org/), and
* [Hamcrest](http://code.google.com/p/hamcrest/),
and designed with C++'s specifics in mind.
gMock:
- provides a declarative syntax for defining mocks,
- can define partial (hybrid) mocks, which are a cross of real and mock
objects,
- handles functions of arbitrary types and overloaded functions,
- comes with a rich set of matchers for validating function arguments,
- uses an intuitive syntax for controlling the behavior of a mock,
- does automatic verification of expectations (no record-and-replay needed),
- allows arbitrary (partial) ordering constraints on function calls to be
expressed,
- lets a user extend it by defining new matchers and actions.
- does not use exceptions, and
- is easy to learn and use.
Details and examples can be found here:
* [gMock for Dummies](docs/for_dummies.md)
* [Legacy gMock FAQ](docs/gmock_faq.md)
* [gMock Cookbook](docs/cook_book.md)
* [gMock Cheat Sheet](docs/cheat_sheet.md)
Please note that code under scripts/generator/ is from the [cppclean
project](http://code.google.com/p/cppclean/) and under the Apache
License, which is different from Google Mock's license.
Google Mock is a part of
[Google Test C++ testing framework](http://github.com/google/googletest/) and a
subject to the same requirements.
prefix=${pcfiledir}/../..
libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
Name: gmock
Description: GoogleMock (without main() function)
Version: @PROJECT_VERSION@
URL: https://github.com/google/googletest
Requires: gtest
Libs: -L${libdir} -lgmock @CMAKE_THREAD_LIBS_INIT@
Cflags: -I${includedir} @GTEST_HAS_PTHREAD_MACRO@ @CMAKE_THREAD_LIBS_INIT@
prefix=${pcfiledir}/../..
libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
Name: gmock_main
Description: GoogleMock (with main() function)
Version: @PROJECT_VERSION@
URL: https://github.com/google/googletest
Requires: gmock
Libs: -L${libdir} -lgmock_main @CMAKE_THREAD_LIBS_INIT@
Cflags: -I${includedir} @GTEST_HAS_PTHREAD_MACRO@ @CMAKE_THREAD_LIBS_INIT@
This diff is collapsed.
This diff is collapsed.
## Legacy gMock FAQ {#GMockFaq}
<!-- GOOGLETEST_CM0021 DO NOT DELETE -->
### When I call a method on my mock object, the method for the real object is invoked instead. What's the problem?
In order for a method to be mocked, it must be *virtual*, unless you use the
[high-perf dependency injection technique](#MockingNonVirtualMethods).
### Can I mock a variadic function?
You cannot mock a variadic function (i.e. a function taking ellipsis (`...`)
arguments) directly in gMock.
The problem is that in general, there is *no way* for a mock object to know how
many arguments are passed to the variadic method, and what the arguments' types
are. Only the *author of the base class* knows the protocol, and we cannot look
into his or her head.
Therefore, to mock such a function, the *user* must teach the mock object how to
figure out the number of arguments and their types. One way to do it is to
provide overloaded versions of the function.
Ellipsis arguments are inherited from C and not really a C++ feature. They are
unsafe to use and don't work with arguments that have constructors or
destructors. Therefore we recommend to avoid them in C++ as much as possible.
### MSVC gives me warning C4301 or C4373 when I define a mock method with a const parameter. Why?
If you compile this using Microsoft Visual C++ 2005 SP1:
```cpp
class Foo {
...
virtual void Bar(const int i) = 0;
};
class MockFoo : public Foo {
...
MOCK_METHOD(void, Bar, (const int i), (override));
};
```
You may get the following warning:
```shell
warning C4301: 'MockFoo::Bar': overriding virtual function only differs from 'Foo::Bar' by const/volatile qualifier
```
This is a MSVC bug. The same code compiles fine with gcc, for example. If you
use Visual C++ 2008 SP1, you would get the warning:
```shell
warning C4373: 'MockFoo::Bar': virtual function overrides 'Foo::Bar', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers
```
In C++, if you *declare* a function with a `const` parameter, the `const`
modifier is ignored. Therefore, the `Foo` base class above is equivalent to:
```cpp
class Foo {
...
virtual void Bar(int i) = 0; // int or const int? Makes no difference.
};
```
In fact, you can *declare* `Bar()` with an `int` parameter, and define it with a
`const int` parameter. The compiler will still match them up.
Since making a parameter `const` is meaningless in the method declaration, we
recommend to remove it in both `Foo` and `MockFoo`. That should workaround the
VC bug.
Note that we are talking about the *top-level* `const` modifier here. If the
function parameter is passed by pointer or reference, declaring the pointee or
referee as `const` is still meaningful. For example, the following two
declarations are *not* equivalent:
```cpp
void Bar(int* p); // Neither p nor *p is const.
void Bar(const int* p); // p is not const, but *p is.
```
<!-- GOOGLETEST_CM0030 DO NOT DELETE -->
### I can't figure out why gMock thinks my expectations are not satisfied. What should I do?
You might want to run your test with `--gmock_verbose=info`. This flag lets
gMock print a trace of every mock function call it receives. By studying the
trace, you'll gain insights on why the expectations you set are not met.
If you see the message "The mock function has no default action set, and its
return type has no default value set.", then try
[adding a default action](for_dummies.md#DefaultValue). Due to a known issue,
unexpected calls on mocks without default actions don't print out a detailed
comparison between the actual arguments and the expected arguments.
### My program crashed and `ScopedMockLog` spit out tons of messages. Is it a gMock bug?
gMock and `ScopedMockLog` are likely doing the right thing here.
When a test crashes, the failure signal handler will try to log a lot of
information (the stack trace, and the address map, for example). The messages
are compounded if you have many threads with depth stacks. When `ScopedMockLog`
intercepts these messages and finds that they don't match any expectations, it
prints an error for each of them.
You can learn to ignore the errors, or you can rewrite your expectations to make
your test more robust, for example, by adding something like:
```cpp
using ::testing::AnyNumber;
using ::testing::Not;
...
// Ignores any log not done by us.
EXPECT_CALL(log, Log(_, Not(EndsWith("/my_file.cc")), _))
.Times(AnyNumber());
```
### How can I assert that a function is NEVER called?
```cpp
using ::testing::_;
...
EXPECT_CALL(foo, Bar(_))
.Times(0);
```
<!-- GOOGLETEST_CM0031 DO NOT DELETE -->
### I have a failed test where gMock tells me TWICE that a particular expectation is not satisfied. Isn't this redundant?
When gMock detects a failure, it prints relevant information (the mock function
arguments, the state of relevant expectations, and etc) to help the user debug.
If another failure is detected, gMock will do the same, including printing the
state of relevant expectations.
Sometimes an expectation's state didn't change between two failures, and you'll
see the same description of the state twice. They are however *not* redundant,
as they refer to *different points in time*. The fact they are the same *is*
interesting information.
### I get a heapcheck failure when using a mock object, but using a real object is fine. What can be wrong?
Does the class (hopefully a pure interface) you are mocking have a virtual
destructor?
Whenever you derive from a base class, make sure its destructor is virtual.
Otherwise Bad Things will happen. Consider the following code:
```cpp
class Base {
public:
// Not virtual, but should be.
~Base() { ... }
...
};
class Derived : public Base {
public:
...
private:
std::string value_;
};
...
Base* p = new Derived;
...
delete p; // Surprise! ~Base() will be called, but ~Derived() will not
// - value_ is leaked.
```
By changing `~Base()` to virtual, `~Derived()` will be correctly called when
`delete p` is executed, and the heap checker will be happy.
### The "newer expectations override older ones" rule makes writing expectations awkward. Why does gMock do that?
When people complain about this, often they are referring to code like:
```cpp
using ::testing::Return;
...
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. However, I have to write the expectations in the
// reverse order. This sucks big time!!!
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
```
The problem, is that they didn't pick the **best** way to express the test's
intent.
By default, expectations don't have to be matched in *any* particular order. If
you want them to match in a certain order, you need to be explicit. This is
gMock's (and jMock's) fundamental philosophy: it's easy to accidentally
over-specify your tests, and we want to make it harder to do so.
There are two better ways to write the test spec. You could either put the
expectations in sequence:
```cpp
using ::testing::Return;
...
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. Using a sequence, we can write the expectations
// in their natural order.
{
InSequence s;
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
}
```
or you can put the sequence of actions in the same expectation:
```cpp
using ::testing::Return;
...
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time.
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.WillOnce(Return(2))
.RetiresOnSaturation();
```
Back to the original questions: why does gMock search the expectations (and
`ON_CALL`s) from back to front? Because this allows a user to set up a mock's
behavior for the common case early (e.g. in the mock's constructor or the test
fixture's set-up phase) and customize it with more specific rules later. If
gMock searches from front to back, this very useful pattern won't be possible.
### gMock prints a warning when a function without EXPECT_CALL is called, even if I have set its behavior using ON_CALL. Would it be reasonable not to show the warning in this case?
When choosing between being neat and being safe, we lean toward the latter. So
the answer is that we think it's better to show the warning.
Often people write `ON_CALL`s in the mock object's constructor or `SetUp()`, as
the default behavior rarely changes from test to test. Then in the test body
they set the expectations, which are often different for each test. Having an
`ON_CALL` in the set-up part of a test doesn't mean that the calls are expected.
If there's no `EXPECT_CALL` and the method is called, it's possibly an error. If
we quietly let the call go through without notifying the user, bugs may creep in
unnoticed.
If, however, you are sure that the calls are OK, you can write
```cpp
using ::testing::_;
...
EXPECT_CALL(foo, Bar(_))
.WillRepeatedly(...);
```
instead of
```cpp
using ::testing::_;
...
ON_CALL(foo, Bar(_))
.WillByDefault(...);
```
This tells gMock that you do expect the calls and no warning should be printed.
Also, you can control the verbosity by specifying `--gmock_verbose=error`. Other
values are `info` and `warning`. If you find the output too noisy when
debugging, just choose a less verbose level.
### How can I delete the mock function's argument in an action?
If your mock function takes a pointer argument and you want to delete that
argument, you can use testing::DeleteArg<N>() to delete the N'th (zero-indexed)
argument:
```cpp
using ::testing::_;
...
MOCK_METHOD(void, Bar, (X* x, const Y& y));
...
EXPECT_CALL(mock_foo_, Bar(_, _))
.WillOnce(testing::DeleteArg<0>()));
```
### How can I perform an arbitrary action on a mock function's argument?
If you find yourself needing to perform some action that's not supported by
gMock directly, remember that you can define your own actions using
[`MakeAction()`](#NewMonoActions) or
[`MakePolymorphicAction()`](#NewPolyActions), or you can write a stub function
and invoke it using [`Invoke()`](#FunctionsAsActions).
```cpp
using ::testing::_;
using ::testing::Invoke;
...
MOCK_METHOD(void, Bar, (X* p));
...
EXPECT_CALL(mock_foo_, Bar(_))
.WillOnce(Invoke(MyAction(...)));
```
### My code calls a static/global function. Can I mock it?
You can, but you need to make some changes.
In general, if you find yourself needing to mock a static function, it's a sign
that your modules are too tightly coupled (and less flexible, less reusable,
less testable, etc). You are probably better off defining a small interface and
call the function through that interface, which then can be easily mocked. It's
a bit of work initially, but usually pays for itself quickly.
This Google Testing Blog
[post](https://testing.googleblog.com/2008/06/defeat-static-cling.html) says it
excellently. Check it out.
### My mock object needs to do complex stuff. It's a lot of pain to specify the actions. gMock sucks!
I know it's not a question, but you get an answer for free any way. :-)
With gMock, you can create mocks in C++ easily. And people might be tempted to
use them everywhere. Sometimes they work great, and sometimes you may find them,
well, a pain to use. So, what's wrong in the latter case?
When you write a test without using mocks, you exercise the code and assert that
it returns the correct value or that the system is in an expected state. This is
sometimes called "state-based testing".
Mocks are great for what some call "interaction-based" testing: instead of
checking the system state at the very end, mock objects verify that they are
invoked the right way and report an error as soon as it arises, giving you a
handle on the precise context in which the error was triggered. This is often
more effective and economical to do than state-based testing.
If you are doing state-based testing and using a test double just to simulate
the real object, you are probably better off using a fake. Using a mock in this
case causes pain, as it's not a strong point for mocks to perform complex
actions. If you experience this and think that mocks suck, you are just not
using the right tool for your problem. Or, you might be trying to solve the
wrong problem. :-)
### I got a warning "Uninteresting function call encountered - default action taken.." Should I panic?
By all means, NO! It's just an FYI. :-)
What it means is that you have a mock function, you haven't set any expectations
on it (by gMock's rule this means that you are not interested in calls to this
function and therefore it can be called any number of times), and it is called.
That's OK - you didn't say it's not OK to call the function!
What if you actually meant to disallow this function to be called, but forgot to
write `EXPECT_CALL(foo, Bar()).Times(0)`? While one can argue that it's the
user's fault, gMock tries to be nice and prints you a note.
So, when you see the message and believe that there shouldn't be any
uninteresting calls, you should investigate what's going on. To make your life
easier, gMock dumps the stack trace when an uninteresting call is encountered.
From that you can figure out which mock function it is, and how it is called.
### I want to define a custom action. Should I use Invoke() or implement the ActionInterface interface?
Either way is fine - you want to choose the one that's more convenient for your
circumstance.
Usually, if your action is for a particular function type, defining it using
`Invoke()` should be easier; if your action can be used in functions of
different types (e.g. if you are defining `Return(*value*)`),
`MakePolymorphicAction()` is easiest. Sometimes you want precise control on what
types of functions the action can be used in, and implementing `ActionInterface`
is the way to go here. See the implementation of `Return()` in
`testing/base/public/gmock-actions.h` for an example.
### I use SetArgPointee() in WillOnce(), but gcc complains about "conflicting return type specified". What does it mean?
You got this error as gMock has no idea what value it should return when the
mock method is called. `SetArgPointee()` says what the side effect is, but
doesn't say what the return value should be. You need `DoAll()` to chain a
`SetArgPointee()` with a `Return()` that provides a value appropriate to the API
being mocked.
See this [recipe](cook_book.md#mocking-side-effects) for more details and an
example.
### I have a huge mock class, and Microsoft Visual C++ runs out of memory when compiling it. What can I do?
We've noticed that when the `/clr` compiler flag is used, Visual C++ uses 5~6
times as much memory when compiling a mock class. We suggest to avoid `/clr`
when compiling native C++ mocks.
......@@ -26,8 +26,7 @@
// 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.
//
......@@ -35,14 +34,20 @@
// cardinalities can be defined by the user implementing the
// CardinalityInterface interface if necessary.
// GOOGLETEST_CM0002 DO NOT DELETE
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_CARDINALITIES_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_CARDINALITIES_H_
#include <limits.h>
#include <memory>
#include <ostream> // NOLINT
#include "gmock/internal/gmock-port.h"
#include "gtest/gtest.h"
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)
namespace testing {
// To implement a cardinality Foo, define:
......@@ -65,10 +70,12 @@ class CardinalityInterface {
virtual int ConservativeLowerBound() const { return 0; }
virtual int ConservativeUpperBound() const { return INT_MAX; }
// Returns true iff call_count calls will satisfy this cardinality.
// Returns true if and only if call_count calls will satisfy this
// cardinality.
virtual bool IsSatisfiedByCallCount(int call_count) const = 0;
// Returns true iff call_count calls will saturate this cardinality.
// Returns true if and only if call_count calls will saturate this
// cardinality.
virtual bool IsSaturatedByCallCount(int call_count) const = 0;
// Describes self to an ostream.
......@@ -77,9 +84,8 @@ class CardinalityInterface {
// A Cardinality is a copyable and IMMUTABLE (except by assignment)
// object that specifies how many times a mock function is expected to
// be called. The implementation of Cardinality is just a linked_ptr
// to const CardinalityInterface, so copying is fairly cheap.
// Don't inherit from Cardinality!
// be called. The implementation of Cardinality is just a std::shared_ptr
// to const CardinalityInterface. Don't inherit from Cardinality!
class GTEST_API_ Cardinality {
public:
// Constructs a null cardinality. Needed for storing Cardinality
......@@ -94,17 +100,19 @@ class GTEST_API_ Cardinality {
int ConservativeLowerBound() const { return impl_->ConservativeLowerBound(); }
int ConservativeUpperBound() const { return impl_->ConservativeUpperBound(); }
// Returns true iff call_count calls will satisfy this cardinality.
// Returns true if and only if call_count calls will satisfy this
// cardinality.
bool IsSatisfiedByCallCount(int call_count) const {
return impl_->IsSatisfiedByCallCount(call_count);
}
// Returns true iff call_count calls will saturate this cardinality.
// Returns true if and only if call_count calls will saturate this
// cardinality.
bool IsSaturatedByCallCount(int call_count) const {
return impl_->IsSaturatedByCallCount(call_count);
}
// Returns true iff call_count calls will over-saturate this
// Returns true if and only if call_count calls will over-saturate this
// cardinality, i.e. exceed the maximum number of allowed calls.
bool IsOverSaturatedByCallCount(int call_count) const {
return impl_->IsSaturatedByCallCount(call_count) &&
......@@ -119,7 +127,7 @@ class GTEST_API_ Cardinality {
::std::ostream* os);
private:
internal::linked_ptr<const CardinalityInterface> impl_;
std::shared_ptr<const CardinalityInterface> impl_;
};
// Creates a cardinality that allows at least n calls.
......@@ -144,4 +152,6 @@ inline Cardinality MakeCardinality(const CardinalityInterface* c) {
} // namespace testing
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_CARDINALITIES_H_
// 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.
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements MOCK_METHOD.
// GOOGLETEST_CM0002 DO NOT DELETE
#ifndef THIRD_PARTY_GOOGLETEST_GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_FUNCTION_MOCKER_H_ // NOLINT
#define THIRD_PARTY_GOOGLETEST_GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_FUNCTION_MOCKER_H_ // NOLINT
#include "gmock/gmock-generated-function-mockers.h" // NOLINT
#include "gmock/internal/gmock-pp.h"
#define MOCK_METHOD(...) \
GMOCK_PP_VARIADIC_CALL(GMOCK_INTERNAL_MOCK_METHOD_ARG_, __VA_ARGS__)
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_1(...) \
GMOCK_INTERNAL_WRONG_ARITY(__VA_ARGS__)
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_2(...) \
GMOCK_INTERNAL_WRONG_ARITY(__VA_ARGS__)
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_3(_Ret, _MethodName, _Args) \
GMOCK_INTERNAL_MOCK_METHOD_ARG_4(_Ret, _MethodName, _Args, ())
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_4(_Ret, _MethodName, _Args, _Spec) \
GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Args); \
GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Spec); \
GMOCK_INTERNAL_ASSERT_VALID_SIGNATURE( \
GMOCK_PP_NARG0 _Args, GMOCK_INTERNAL_SIGNATURE(_Ret, _Args)); \
GMOCK_INTERNAL_ASSERT_VALID_SPEC(_Spec) \
GMOCK_INTERNAL_MOCK_METHOD_IMPL( \
GMOCK_PP_NARG0 _Args, _MethodName, GMOCK_INTERNAL_HAS_CONST(_Spec), \
GMOCK_INTERNAL_HAS_OVERRIDE(_Spec), GMOCK_INTERNAL_HAS_FINAL(_Spec), \
GMOCK_INTERNAL_HAS_NOEXCEPT(_Spec), GMOCK_INTERNAL_GET_CALLTYPE(_Spec), \
(GMOCK_INTERNAL_SIGNATURE(_Ret, _Args)))
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_5(...) \
GMOCK_INTERNAL_WRONG_ARITY(__VA_ARGS__)
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_6(...) \
GMOCK_INTERNAL_WRONG_ARITY(__VA_ARGS__)
#define GMOCK_INTERNAL_MOCK_METHOD_ARG_7(...) \
GMOCK_INTERNAL_WRONG_ARITY(__VA_ARGS__)
#define GMOCK_INTERNAL_WRONG_ARITY(...) \
static_assert( \
false, \
"MOCK_METHOD must be called with 3 or 4 arguments. _Ret, " \
"_MethodName, _Args and optionally _Spec. _Args and _Spec must be " \
"enclosed in parentheses. If _Ret is a type with unprotected commas, " \
"it must also be enclosed in parentheses.")
#define GMOCK_INTERNAL_ASSERT_PARENTHESIS(_Tuple) \
static_assert( \
GMOCK_PP_IS_ENCLOSED_PARENS(_Tuple), \
GMOCK_PP_STRINGIZE(_Tuple) " should be enclosed in parentheses.")
#define GMOCK_INTERNAL_ASSERT_VALID_SIGNATURE(_N, ...) \
static_assert( \
std::is_function<__VA_ARGS__>::value, \
"Signature must be a function type, maybe return type contains " \
"unprotected comma."); \
static_assert( \
::testing::tuple_size<typename ::testing::internal::Function< \
__VA_ARGS__>::ArgumentTuple>::value == _N, \
"This method does not take " GMOCK_PP_STRINGIZE( \
_N) " arguments. Parenthesize all types with unproctected commas.")
#define GMOCK_INTERNAL_ASSERT_VALID_SPEC(_Spec) \
GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_ASSERT_VALID_SPEC_ELEMENT, ~, _Spec)
#define GMOCK_INTERNAL_MOCK_METHOD_IMPL(_N, _MethodName, _Constness, \
_Override, _Final, _Noexcept, \
_CallType, _Signature) \
typename ::testing::internal::Function<GMOCK_PP_REMOVE_PARENS( \
_Signature)>::Result \
GMOCK_INTERNAL_EXPAND(_CallType) \
_MethodName(GMOCK_PP_REPEAT(GMOCK_INTERNAL_PARAMETER, _Signature, _N)) \
GMOCK_PP_IF(_Constness, const, ) GMOCK_PP_IF(_Noexcept, noexcept, ) \
GMOCK_PP_IF(_Override, override, ) \
GMOCK_PP_IF(_Final, final, ) { \
GMOCK_MOCKER_(_N, _Constness, _MethodName) \
.SetOwnerAndName(this, #_MethodName); \
return GMOCK_MOCKER_(_N, _Constness, _MethodName) \
.Invoke(GMOCK_PP_REPEAT(GMOCK_INTERNAL_FORWARD_ARG, _Signature, _N)); \
} \
::testing::MockSpec<GMOCK_PP_REMOVE_PARENS(_Signature)> gmock_##_MethodName( \
GMOCK_PP_REPEAT(GMOCK_INTERNAL_MATCHER_PARAMETER, _Signature, _N)) \
GMOCK_PP_IF(_Constness, const, ) { \
GMOCK_MOCKER_(_N, _Constness, _MethodName).RegisterOwner(this); \
return GMOCK_MOCKER_(_N, _Constness, _MethodName) \
.With(GMOCK_PP_REPEAT(GMOCK_INTERNAL_MATCHER_ARGUMENT, , _N)); \
} \
::testing::MockSpec<GMOCK_PP_REMOVE_PARENS(_Signature)> gmock_##_MethodName( \
const ::testing::internal::WithoutMatchers&, \
GMOCK_PP_IF(_Constness, const, )::testing::internal::Function< \
GMOCK_PP_REMOVE_PARENS(_Signature)>*) \
const GMOCK_PP_IF(_Noexcept, noexcept, ) { \
return GMOCK_PP_CAT(::testing::internal::AdjustConstness_, \
GMOCK_PP_IF(_Constness, const, ))(this) \
->gmock_##_MethodName(GMOCK_PP_REPEAT( \
GMOCK_INTERNAL_A_MATCHER_ARGUMENT, _Signature, _N)); \
} \
mutable ::testing::FunctionMocker<GMOCK_PP_REMOVE_PARENS(_Signature)> \
GMOCK_MOCKER_(_N, _Constness, _MethodName)
#define GMOCK_INTERNAL_EXPAND(...) __VA_ARGS__
// Five Valid modifiers.
#define GMOCK_INTERNAL_HAS_CONST(_Tuple) \
GMOCK_PP_HAS_COMMA(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_DETECT_CONST, ~, _Tuple))
#define GMOCK_INTERNAL_HAS_OVERRIDE(_Tuple) \
GMOCK_PP_HAS_COMMA( \
GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_DETECT_OVERRIDE, ~, _Tuple))
#define GMOCK_INTERNAL_HAS_FINAL(_Tuple) \
GMOCK_PP_HAS_COMMA(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_DETECT_FINAL, ~, _Tuple))
#define GMOCK_INTERNAL_HAS_NOEXCEPT(_Tuple) \
GMOCK_PP_HAS_COMMA( \
GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_DETECT_NOEXCEPT, ~, _Tuple))
#define GMOCK_INTERNAL_GET_CALLTYPE(_Tuple) \
GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_GET_CALLTYPE_IMPL, ~, _Tuple)
#define GMOCK_INTERNAL_ASSERT_VALID_SPEC_ELEMENT(_i, _, _elem) \
static_assert( \
(GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_CONST(_i, _, _elem)) + \
GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_OVERRIDE(_i, _, _elem)) + \
GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_FINAL(_i, _, _elem)) + \
GMOCK_PP_HAS_COMMA(GMOCK_INTERNAL_DETECT_NOEXCEPT(_i, _, _elem)) + \
GMOCK_INTERNAL_IS_CALLTYPE(_elem)) == 1, \
GMOCK_PP_STRINGIZE( \
_elem) " cannot be recognized as a valid specification modifier.");
// Modifiers implementation.
#define GMOCK_INTERNAL_DETECT_CONST(_i, _, _elem) \
GMOCK_PP_CAT(GMOCK_INTERNAL_DETECT_CONST_I_, _elem)
#define GMOCK_INTERNAL_DETECT_CONST_I_const ,
#define GMOCK_INTERNAL_DETECT_OVERRIDE(_i, _, _elem) \
GMOCK_PP_CAT(GMOCK_INTERNAL_DETECT_OVERRIDE_I_, _elem)
#define GMOCK_INTERNAL_DETECT_OVERRIDE_I_override ,
#define GMOCK_INTERNAL_DETECT_FINAL(_i, _, _elem) \
GMOCK_PP_CAT(GMOCK_INTERNAL_DETECT_FINAL_I_, _elem)
#define GMOCK_INTERNAL_DETECT_FINAL_I_final ,
// TODO(iserna): Maybe noexcept should accept an argument here as well.
#define GMOCK_INTERNAL_DETECT_NOEXCEPT(_i, _, _elem) \
GMOCK_PP_CAT(GMOCK_INTERNAL_DETECT_NOEXCEPT_I_, _elem)
#define GMOCK_INTERNAL_DETECT_NOEXCEPT_I_noexcept ,
#define GMOCK_INTERNAL_GET_CALLTYPE_IMPL(_i, _, _elem) \
GMOCK_PP_IF(GMOCK_INTERNAL_IS_CALLTYPE(_elem), \
GMOCK_INTERNAL_GET_VALUE_CALLTYPE, GMOCK_PP_EMPTY) \
(_elem)
// TODO(iserna): GMOCK_INTERNAL_IS_CALLTYPE and
// GMOCK_INTERNAL_GET_VALUE_CALLTYPE needed more expansions to work on windows
// maybe they can be simplified somehow.
#define GMOCK_INTERNAL_IS_CALLTYPE(_arg) \
GMOCK_INTERNAL_IS_CALLTYPE_I( \
GMOCK_PP_CAT(GMOCK_INTERNAL_IS_CALLTYPE_HELPER_, _arg))
#define GMOCK_INTERNAL_IS_CALLTYPE_I(_arg) GMOCK_PP_IS_ENCLOSED_PARENS(_arg)
#define GMOCK_INTERNAL_GET_VALUE_CALLTYPE(_arg) \
GMOCK_INTERNAL_GET_VALUE_CALLTYPE_I( \
GMOCK_PP_CAT(GMOCK_INTERNAL_IS_CALLTYPE_HELPER_, _arg))
#define GMOCK_INTERNAL_GET_VALUE_CALLTYPE_I(_arg) \
GMOCK_PP_CAT(GMOCK_PP_IDENTITY, _arg)
#define GMOCK_INTERNAL_IS_CALLTYPE_HELPER_Calltype
#define GMOCK_INTERNAL_SIGNATURE(_Ret, _Args) \
GMOCK_PP_IF(GMOCK_PP_IS_BEGIN_PARENS(_Ret), GMOCK_PP_REMOVE_PARENS, \
GMOCK_PP_IDENTITY) \
(_Ret)(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_GET_TYPE, _, _Args))
#define GMOCK_INTERNAL_GET_TYPE(_i, _, _elem) \
GMOCK_PP_COMMA_IF(_i) \
GMOCK_PP_IF(GMOCK_PP_IS_BEGIN_PARENS(_elem), GMOCK_PP_REMOVE_PARENS, \
GMOCK_PP_IDENTITY) \
(_elem)
#define GMOCK_INTERNAL_PARAMETER(_i, _Signature, _) \
GMOCK_PP_COMMA_IF(_i) \
GMOCK_INTERNAL_ARG_O(typename, GMOCK_PP_INC(_i), \
GMOCK_PP_REMOVE_PARENS(_Signature)) \
gmock_a##_i
#define GMOCK_INTERNAL_FORWARD_ARG(_i, _Signature, _) \
GMOCK_PP_COMMA_IF(_i) \
::std::forward<GMOCK_INTERNAL_ARG_O(typename, GMOCK_PP_INC(_i), \
GMOCK_PP_REMOVE_PARENS(_Signature))>( \
gmock_a##_i)
#define GMOCK_INTERNAL_MATCHER_PARAMETER(_i, _Signature, _) \
GMOCK_PP_COMMA_IF(_i) \
GMOCK_INTERNAL_MATCHER_O(typename, GMOCK_PP_INC(_i), \
GMOCK_PP_REMOVE_PARENS(_Signature)) \
gmock_a##_i
#define GMOCK_INTERNAL_MATCHER_ARGUMENT(_i, _1, _2) \
GMOCK_PP_COMMA_IF(_i) \
gmock_a##_i
#define GMOCK_INTERNAL_A_MATCHER_ARGUMENT(_i, _Signature, _) \
GMOCK_PP_COMMA_IF(_i) \
::testing::A<GMOCK_INTERNAL_ARG_O(typename, GMOCK_PP_INC(_i), \
GMOCK_PP_REMOVE_PARENS(_Signature))>()
#define GMOCK_INTERNAL_ARG_O(_tn, _i, ...) GMOCK_ARG_(_tn, _i, __VA_ARGS__)
#define GMOCK_INTERNAL_MATCHER_O(_tn, _i, ...) \
GMOCK_MATCHER_(_tn, _i, __VA_ARGS__)
#endif // THIRD_PARTY_GOOGLETEST_GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_FUNCTION_MOCKER_H_
$$ -*- mode: c++; -*-
$$ This is a Pump source file. Please use Pump to convert it to
$$ This is a Pump source file. Please use Pump to convert it to
$$ gmock-generated-actions.h.
$$
$var n = 10 $$ The maximum arity we support.
......@@ -32,145 +32,26 @@ $$}} This meta comment fixes auto-indentation in editors.
// 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 some commonly used variadic actions.
// GOOGLETEST_CM0002 DO NOT DELETE
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
#include <memory>
#include <utility>
#include "gmock/gmock-actions.h"
#include "gmock/internal/gmock-port.h"
namespace testing {
namespace internal {
// InvokeHelper<F> knows how to unpack an N-tuple and invoke an N-ary
// function or method with the unpacked values, where F is a function
// type that takes N arguments.
template <typename Result, typename ArgumentTuple>
class InvokeHelper;
$range i 0..n
$for i [[
$range j 1..i
$var types = [[$for j [[, typename A$j]]]]
$var as = [[$for j, [[A$j]]]]
$var args = [[$if i==0 [[]] $else [[ args]]]]
$var gets = [[$for j, [[get<$(j - 1)>(args)]]]]
template <typename R$types>
class InvokeHelper<R, ::testing::tuple<$as> > {
public:
template <typename Function>
static R Invoke(Function function, const ::testing::tuple<$as>&$args) {
return function($gets);
}
template <class Class, typename MethodPtr>
static R InvokeMethod(Class* obj_ptr,
MethodPtr method_ptr,
const ::testing::tuple<$as>&$args) {
return (obj_ptr->*method_ptr)($gets);
}
};
]]
// An INTERNAL macro for extracting the type of a tuple field. It's
// subject to change without notice - DO NOT USE IN USER CODE!
#define GMOCK_FIELD_(Tuple, N) \
typename ::testing::tuple_element<N, Tuple>::type
$range i 1..n
// SelectArgs<Result, ArgumentTuple, k1, k2, ..., k_n>::type is the
// type of an n-ary function whose i-th (1-based) argument type is the
// k{i}-th (0-based) field of ArgumentTuple, which must be a tuple
// type, and whose return type is Result. For example,
// SelectArgs<int, ::testing::tuple<bool, char, double, long>, 0, 3>::type
// is int(bool, long).
//
// SelectArgs<Result, ArgumentTuple, k1, k2, ..., k_n>::Select(args)
// returns the selected fields (k1, k2, ..., k_n) of args as a tuple.
// For example,
// SelectArgs<int, tuple<bool, char, double>, 2, 0>::Select(
// ::testing::make_tuple(true, 'a', 2.5))
// returns tuple (2.5, true).
//
// The numbers in list k1, k2, ..., k_n must be >= 0, where n can be
// in the range [0, $n]. Duplicates are allowed and they don't have
// to be in an ascending or descending order.
template <typename Result, typename ArgumentTuple, $for i, [[int k$i]]>
class SelectArgs {
public:
typedef Result type($for i, [[GMOCK_FIELD_(ArgumentTuple, k$i)]]);
typedef typename Function<type>::ArgumentTuple SelectedArgs;
static SelectedArgs Select(const ArgumentTuple& args) {
return SelectedArgs($for i, [[get<k$i>(args)]]);
}
};
$for i [[
$range j 1..n
$range j1 1..i-1
template <typename Result, typename ArgumentTuple$for j1[[, int k$j1]]>
class SelectArgs<Result, ArgumentTuple,
$for j, [[$if j <= i-1 [[k$j]] $else [[-1]]]]> {
public:
typedef Result type($for j1, [[GMOCK_FIELD_(ArgumentTuple, k$j1)]]);
typedef typename Function<type>::ArgumentTuple SelectedArgs;
static SelectedArgs Select(const ArgumentTuple& [[]]
$if i == 1 [[/* args */]] $else [[args]]) {
return SelectedArgs($for j1, [[get<k$j1>(args)]]);
}
};
]]
#undef GMOCK_FIELD_
$var ks = [[$for i, [[k$i]]]]
// Implements the WithArgs action.
template <typename InnerAction, $for i, [[int k$i = -1]]>
class WithArgsAction {
public:
explicit WithArgsAction(const InnerAction& action) : action_(action) {}
template <typename F>
operator Action<F>() const { return MakeAction(new Impl<F>(action_)); }
private:
template <typename F>
class Impl : public ActionInterface<F> {
public:
typedef typename Function<F>::Result Result;
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
explicit Impl(const InnerAction& action) : action_(action) {}
virtual Result Perform(const ArgumentTuple& args) {
return action_.Perform(SelectArgs<Result, ArgumentTuple, $ks>::Select(args));
}
private:
typedef typename SelectArgs<Result, ArgumentTuple,
$ks>::type InnerFunctionType;
Action<InnerFunctionType> action_;
};
const InnerAction action_;
GTEST_DISALLOW_ASSIGN_(WithArgsAction);
};
// A macro from the ACTION* family (defined later in this file)
// defines an action that can be used in a mock function. Typically,
// these actions only care about a subset of the arguments of the mock
......@@ -201,12 +82,12 @@ $range j 0..i-1
]]]]
$range j 0..i-1
$var As = [[$for j, [[A$j]]]]
$var as = [[$for j, [[get<$j>(args)]]]]
$var as = [[$for j, [[std::get<$j>(args)]]]]
$range k 1..n-i
$var eas = [[$for k, [[ExcessiveArg()]]]]
$var arg_list = [[$if (i==0) | (i==n) [[$as$eas]] $else [[$as, $eas]]]]
$template
static Result Perform(Impl* impl, const ::testing::tuple<$As>& args) {
static Result Perform(Impl* impl, const ::std::tuple<$As>& args) {
return impl->template gmock_PerformImpl<$As>(args, $arg_list);
}
......@@ -214,53 +95,6 @@ $template
};
} // namespace internal
// Various overloads for Invoke().
// WithArgs<N1, N2, ..., Nk>(an_action) creates an action that passes
// the selected arguments of the mock function to an_action and
// performs it. It serves as an adaptor between actions with
// different argument lists. C++ doesn't support default arguments for
// function templates, so we have to overload it.
$range i 1..n
$for i [[
$range j 1..i
template <$for j [[int k$j, ]]typename InnerAction>
inline internal::WithArgsAction<InnerAction$for j [[, k$j]]>
WithArgs(const InnerAction& action) {
return internal::WithArgsAction<InnerAction$for j [[, k$j]]>(action);
}
]]
// Creates an action that does actions a1, a2, ..., sequentially in
// each invocation.
$range i 2..n
$for i [[
$range j 2..i
$var types = [[$for j, [[typename Action$j]]]]
$var Aas = [[$for j [[, Action$j a$j]]]]
template <typename Action1, $types>
$range k 1..i-1
inline $for k [[internal::DoBothAction<Action$k, ]]Action$i$for k [[>]]
DoAll(Action1 a1$Aas) {
$if i==2 [[
return internal::DoBothAction<Action1, Action2>(a1, a2);
]] $else [[
$range j2 2..i
return DoAll(a1, DoAll($for j2, [[a$j2]]));
]]
}
]]
} // namespace testing
// The ACTION* family of macros can be used in a namespace scope to
......@@ -348,16 +182,15 @@ $range j2 2..i
//
// CAVEAT:
//
// ACTION*() can only be used in a namespace scope. The reason is
// that C++ doesn't yet allow function-local types to be used to
// instantiate templates. The up-coming C++0x standard will fix this.
// Once that's done, we'll consider supporting using ACTION*() inside
// a function.
// ACTION*() can only be used in a namespace scope as templates cannot be
// declared inside of a local class.
// Users can, however, define any local functors (e.g. a lambda) that
// can be used as actions.
//
// MORE INFORMATION:
//
// To learn more about using these macros, please search for 'ACTION'
// on http://code.google.com/p/googlemock/wiki/CookBook.
// To learn more about using these macros, please search for 'ACTION' on
// https://github.com/google/googletest/blob/master/googlemock/docs/cook_book.md
$range i 0..n
$range k 0..n-1
......@@ -366,7 +199,7 @@ $range k 0..n-1
#define GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_\
const args_type& args GTEST_ATTRIBUTE_UNUSED_
$for k [[, \
arg$k[[]]_type arg$k GTEST_ATTRIBUTE_UNUSED_]]
const arg$k[[]]_type& arg$k GTEST_ATTRIBUTE_UNUSED_]]
// Sometimes you want to give an action explicit template parameters
......@@ -393,7 +226,7 @@ $for k [[, \
// ACTION_TEMPLATE(DuplicateArg,
// HAS_2_TEMPLATE_PARAMS(int, k, typename, T),
// AND_1_VALUE_PARAMS(output)) {
// *output = T(::testing::get<k>(args));
// *output = T(::std::get<k>(args));
// }
// ...
// int n;
......@@ -486,7 +319,7 @@ _VALUE_PARAMS($for j, [[p$j]]) $for j [[, typename p$j##_type]]
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_INIT_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]])\
($for j, [[p$j##_type gmock_p$j]])$if i>0 [[ : ]]$for j, [[p$j(gmock_p$j)]]
($for j, [[p$j##_type gmock_p$j]])$if i>0 [[ : ]]$for j, [[p$j(::std::move(gmock_p$j))]]
]]
......@@ -568,7 +401,7 @@ $range k 0..n-1
}\
template <$for k, [[typename arg$k[[]]_type]]>\
return_type gmock_PerformImpl(const args_type& args[[]]
$for k [[, arg$k[[]]_type arg$k]]) const;\
$for k [[, const arg$k[[]]_type& arg$k]]) const;\
GMOCK_INTERNAL_DEFN_##value_params\
private:\
GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
......@@ -619,7 +452,7 @@ $var class_name = [[name##Action[[$if i==0 [[]] $elif i==1 [[P]]
$range j 0..i-1
$var ctor_param_list = [[$for j, [[p$j##_type gmock_p$j]]]]
$var param_types_and_names = [[$for j, [[p$j##_type p$j]]]]
$var inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(gmock_p$j)]]]]]]
$var inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(::std::forward<p$j##_type>(gmock_p$j))]]]]]]
$var param_field_decls = [[$for j
[[
......@@ -633,7 +466,7 @@ $var param_field_decls2 = [[$for j
$var params = [[$for j, [[p$j]]]]
$var param_types = [[$if i==0 [[]] $else [[<$for j, [[p$j##_type]]>]]]]
$var typename_arg_types = [[$for k, [[typename arg$k[[]]_type]]]]
$var arg_types_and_names = [[$for k, [[arg$k[[]]_type arg$k]]]]
$var arg_types_and_names = [[$for k, [[const arg$k[[]]_type& arg$k]]]]
$var macro_name = [[$if i==0 [[ACTION]] $elif i==1 [[ACTION_P]]
$else [[ACTION_P$i]]]]
......@@ -757,7 +590,7 @@ ACTION_TEMPLATE(InvokeArgument,
using internal::invoke_argument::InvokeArgumentAdl;
return InvokeArgumentAdl<return_type>(
internal::invoke_argument::AdlTag(),
::testing::get<k>(args)$for j [[, p$j]]);
::std::get<k>(args)$for j [[, p$j]]);
}
]]
......
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