test/gmock_leak_test.py

#!/usr/bin/env python
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"""Tests that leaked mock objects can be caught be Google Mock."""

__author__ = 'wan@google.com (Zhanyong Wan)'

import gmock_test_utils
import os
import unittest

IS_WINDOWS = os.name == 'nt'

if IS_WINDOWS:
  # TODO(wan@google.com): test the opt build too.  We should do it
  # when Vlad Losev's work on Google Test's Python test driver is
  # done, such that we can reuse the work.
  PROGRAM = r'..\build.dbg\gmock_leak_test_.exe'
else:
  PROGRAM = 'gmock_leak_test_'

PROGRAM_PATH = os.path.join(gmock_test_utils.GetBuildDir(), PROGRAM)
TEST_WITH_EXPECT_CALL = PROGRAM_PATH + ' --gtest_filter=*ExpectCall*'
TEST_WITH_ON_CALL = PROGRAM_PATH + ' --gtest_filter=*OnCall*'
TEST_MULTIPLE_LEAKS = PROGRAM_PATH + ' --gtest_filter=*MultipleLeaked*'


class GMockLeakTest(unittest.TestCase):

  def testCatchesLeakedMockByDefault(self):
    self.assertNotEqual(os.system(TEST_WITH_EXPECT_CALL), 0)
    self.assertNotEqual(os.system(TEST_WITH_ON_CALL), 0)

  def testDoesNotCatchLeakedMockWhenDisabled(self):
    self.assertEquals(
        0, os.system(TEST_WITH_EXPECT_CALL + ' --gmock_catch_leaked_mocks=0'))
    self.assertEquals(
        0, os.system(TEST_WITH_ON_CALL + ' --gmock_catch_leaked_mocks=0'))

  def testCatchesLeakedMockWhenEnabled(self):
    self.assertNotEqual(
        os.system(TEST_WITH_EXPECT_CALL + ' --gmock_catch_leaked_mocks'), 0)
    self.assertNotEqual(
        os.system(TEST_WITH_ON_CALL + ' --gmock_catch_leaked_mocks'), 0)

  def testCatchesLeakedMockWhenEnabledWithExplictFlagValue(self):
    self.assertNotEqual(
        os.system(TEST_WITH_EXPECT_CALL + ' --gmock_catch_leaked_mocks=1'), 0)

  def testCatchesMultipleLeakedMocks(self):
    self.assertNotEqual(
        os.system(TEST_MULTIPLE_LEAKS + ' --gmock_catch_leaked_mocks'), 0)


if __name__ == '__main__':
  gmock_test_utils.Main()