#!/usr/bin/env python
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"""Unit test for the gtest_json_output module."""

import json
import os
import gtest_test_utils
import gtest_json_test_utils


GTEST_OUTPUT_SUBDIR = 'json_outfiles'
GTEST_OUTPUT_1_TEST = 'gtest_xml_outfile1_test_'
GTEST_OUTPUT_2_TEST = 'gtest_xml_outfile2_test_'

EXPECTED_1 = {
    u'tests': 1,
    u'failures': 0,
    u'disabled': 0,
    u'errors': 0,
    u'time': u'*',
    u'timestamp': u'*',
    u'name': u'AllTests',
    u'testsuites': [{
        u'name': u'PropertyOne',
        u'tests': 1,
        u'failures': 0,
        u'disabled': 0,
        u'errors': 0,
        u'time': u'*',
        u'testsuite': [{
            u'name': u'TestSomeProperties',
            u'status': u'RUN',
            u'time': u'*',
            u'classname': u'PropertyOne',
            u'SetUpProp': u'1',
            u'TestSomeProperty': u'1',
            u'TearDownProp': u'1',
        }],
    }],
}

EXPECTED_2 = {
    u'tests': 1,
    u'failures': 0,
    u'disabled': 0,
    u'errors': 0,
    u'time': u'*',
    u'timestamp': u'*',
    u'name': u'AllTests',
    u'testsuites': [{
        u'name': u'PropertyTwo',
        u'tests': 1,
        u'failures': 0,
        u'disabled': 0,
        u'errors': 0,
        u'time': u'*',
        u'testsuite': [{
            u'name': u'TestSomeProperties',
            u'status': u'RUN',
            u'time': u'*',
            u'classname': u'PropertyTwo',
            u'SetUpProp': u'2',
            u'TestSomeProperty': u'2',
            u'TearDownProp': u'2',
        }],
    }],
}


class GTestJsonOutFilesTest(gtest_test_utils.TestCase):
  """Unit test for Google Test's JSON output functionality."""

  def setUp(self):
    # We want the trailing '/' that the last "" provides in os.path.join, for
    # telling Google Test to create an output directory instead of a single file
    # for xml output.
    self.output_dir_ = os.path.join(gtest_test_utils.GetTempDir(),
                                    GTEST_OUTPUT_SUBDIR, '')
    self.DeleteFilesAndDir()

  def tearDown(self):
    self.DeleteFilesAndDir()

  def DeleteFilesAndDir(self):
    try:
      os.remove(os.path.join(self.output_dir_, GTEST_OUTPUT_1_TEST + '.json'))
    except os.error:
      pass
    try:
      os.remove(os.path.join(self.output_dir_, GTEST_OUTPUT_2_TEST + '.json'))
    except os.error:
      pass
    try:
      os.rmdir(self.output_dir_)
    except os.error:
      pass

  def testOutfile1(self):
    self._TestOutFile(GTEST_OUTPUT_1_TEST, EXPECTED_1)

  def testOutfile2(self):
    self._TestOutFile(GTEST_OUTPUT_2_TEST, EXPECTED_2)

  def _TestOutFile(self, test_name, expected):
    gtest_prog_path = gtest_test_utils.GetTestExecutablePath(test_name)
    command = [gtest_prog_path, '--gtest_output=json:%s' % self.output_dir_]
    p = gtest_test_utils.Subprocess(command,
                                    working_dir=gtest_test_utils.GetTempDir())
    self.assert_(p.exited)
    self.assertEquals(0, p.exit_code)

    # TODO(wan@google.com): libtool causes the built test binary to be
    #   named lt-gtest_xml_outfiles_test_ instead of
    #   gtest_xml_outfiles_test_.  To account for this possibility, we
    #   allow both names in the following code.  We should remove this
    #   hack when Chandler Carruth's libtool replacement tool is ready.
    output_file_name1 = test_name + '.json'
    output_file1 = os.path.join(self.output_dir_, output_file_name1)
    output_file_name2 = 'lt-' + output_file_name1
    output_file2 = os.path.join(self.output_dir_, output_file_name2)
    self.assert_(os.path.isfile(output_file1) or os.path.isfile(output_file2),
                 output_file1)

    if os.path.isfile(output_file1):
      with open(output_file1) as f:
        actual = json.load(f)
    else:
      with open(output_file2) as f:
        actual = json.load(f)
    self.assertEqual(expected, gtest_json_test_utils.normalize(actual))


if __name__ == '__main__':
  os.environ['GTEST_STACK_TRACE_DEPTH'] = '0'
  gtest_test_utils.Main()
