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28 """Unit test for Google Test's global test environment behavior.
30 A user can specify a global test environment via
31 testing::AddGlobalTestEnvironment. Failures in the global environment should
32 result in all unit tests being skipped.
34 This script tests such functionality by invoking
35 googletest-global-environment-unittest_ (a program written with Google Test).
39 from googletest.test import gtest_test_utils
42 def RunAndReturnOutput(args=None):
43 """Runs the test program and returns its output."""
45 return gtest_test_utils.Subprocess([
46 gtest_test_utils.GetTestExecutablePath(
47 'googletest-global-environment-unittest_')
48 ] + (args or [])).output
51 class GTestGlobalEnvironmentUnitTest(gtest_test_utils.TestCase):
52 """Tests global test environment failures."""
54 def testEnvironmentSetUpFails(self):
55 """Tests the behavior of not specifying the fail_fast."""
58 txt = RunAndReturnOutput()
60 # We should see the text of the global environment setup error.
61 self.assertIn('Canned environment setup error', txt)
63 # Our test should have been skipped due to the error, and not treated as a
65 self.assertIn('[ SKIPPED ] 1 test', txt)
66 self.assertIn('[ PASSED ] 0 tests', txt)
68 # The test case shouldn't have been run.
69 self.assertNotIn('Unexpected call', txt)
71 def testEnvironmentSetUpAndTornDownForEachRepeat(self):
72 """Tests the behavior of test environments and gtest_repeat."""
74 # When --gtest_recreate_environments_when_repeating is true, the global test
75 # environment should be set up and torn down for each iteration.
76 txt = RunAndReturnOutput([
78 '--gtest_recreate_environments_when_repeating=true',
81 expected_pattern = ('(.|\n)*'
82 r'Repeating all tests \(iteration 1\)'
84 'Global test environment set-up.'
88 'Global test environment tear-down'
90 r'Repeating all tests \(iteration 2\)'
92 'Global test environment set-up.'
96 'Global test environment tear-down'
98 self.assertRegex(txt, expected_pattern)
100 def testEnvironmentSetUpAndTornDownOnce(self):
101 """Tests environment and --gtest_recreate_environments_when_repeating."""
103 # By default the environment should only be set up and torn down once, at
104 # the start and end of the test respectively.
105 txt = RunAndReturnOutput([
109 expected_pattern = ('(.|\n)*'
110 r'Repeating all tests \(iteration 1\)'
112 'Global test environment set-up.'
116 r'Repeating all tests \(iteration 2\)'
120 'Global test environment tear-down'
122 self.assertRegex(txt, expected_pattern)
124 self.assertEqual(len(re.findall('Global test environment set-up', txt)), 1)
126 len(re.findall('Global test environment tear-down', txt)), 1)
129 if __name__ == '__main__':
130 gtest_test_utils.Main()