3 # Copyright 2010 Google Inc. All Rights Reserved.
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are
9 # * Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # * Redistributions in binary form must reproduce the above
12 # copyright notice, this list of conditions and the following disclaimer
13 # in the documentation and/or other materials provided with the
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16 # contributors may be used to endorse or promote products derived from
17 # this software without specific prior written permission.
19 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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31 """Tests Google Test's exception catching behavior.
33 This script invokes googletest-catch-exceptions-test_ and
34 googletest-catch-exceptions-ex-test_ (programs written with
35 Google Test) and verifies their output.
38 import gtest_test_utils
41 FLAG_PREFIX = '--gtest_'
42 LIST_TESTS_FLAG = FLAG_PREFIX + 'list_tests'
43 NO_CATCH_EXCEPTIONS_FLAG = FLAG_PREFIX + 'catch_exceptions=0'
44 FILTER_FLAG = FLAG_PREFIX + 'filter'
46 # Path to the googletest-catch-exceptions-ex-test_ binary, compiled with
48 EX_EXE_PATH = gtest_test_utils.GetTestExecutablePath(
49 'googletest-catch-exceptions-ex-test_')
51 # Path to the googletest-catch-exceptions-test_ binary, compiled with
52 # exceptions disabled.
53 EXE_PATH = gtest_test_utils.GetTestExecutablePath(
54 'googletest-catch-exceptions-no-ex-test_')
56 environ = gtest_test_utils.environ
57 SetEnvVar = gtest_test_utils.SetEnvVar
59 # Tests in this file run a Google-Test-based test program and expect it
60 # to terminate prematurely. Therefore they are incompatible with
61 # the premature-exit-file protocol by design. Unset the
62 # premature-exit filepath to prevent Google Test from creating
64 SetEnvVar(gtest_test_utils.PREMATURE_EXIT_FILE_ENV_VAR, None)
66 TEST_LIST = gtest_test_utils.Subprocess(
67 [EXE_PATH, LIST_TESTS_FLAG], env=environ).output
69 SUPPORTS_SEH_EXCEPTIONS = 'ThrowsSehException' in TEST_LIST
71 if SUPPORTS_SEH_EXCEPTIONS:
72 BINARY_OUTPUT = gtest_test_utils.Subprocess([EXE_PATH], env=environ).output
74 EX_BINARY_OUTPUT = gtest_test_utils.Subprocess(
75 [EX_EXE_PATH], env=environ).output
79 if SUPPORTS_SEH_EXCEPTIONS:
80 # pylint:disable-msg=C6302
81 class CatchSehExceptionsTest(gtest_test_utils.TestCase):
82 """Tests exception-catching behavior."""
85 def TestSehExceptions(self, test_output):
86 self.assert_('SEH exception with code 0x2a thrown '
87 'in the test fixture\'s constructor'
89 self.assert_('SEH exception with code 0x2a thrown '
90 'in the test fixture\'s destructor'
92 self.assert_('SEH exception with code 0x2a thrown in SetUpTestCase()'
94 self.assert_('SEH exception with code 0x2a thrown in TearDownTestCase()'
96 self.assert_('SEH exception with code 0x2a thrown in SetUp()'
98 self.assert_('SEH exception with code 0x2a thrown in TearDown()'
100 self.assert_('SEH exception with code 0x2a thrown in the test body'
103 def testCatchesSehExceptionsWithCxxExceptionsEnabled(self):
104 self.TestSehExceptions(EX_BINARY_OUTPUT)
106 def testCatchesSehExceptionsWithCxxExceptionsDisabled(self):
107 self.TestSehExceptions(BINARY_OUTPUT)
110 class CatchCxxExceptionsTest(gtest_test_utils.TestCase):
111 """Tests C++ exception-catching behavior.
113 Tests in this test case verify that:
114 * C++ exceptions are caught and logged as C++ (not SEH) exceptions
115 * Exception thrown affect the remainder of the test work flow in the
119 def testCatchesCxxExceptionsInFixtureConstructor(self):
120 self.assert_('C++ exception with description '
121 '"Standard C++ exception" thrown '
122 'in the test fixture\'s constructor'
124 self.assert_('unexpected' not in EX_BINARY_OUTPUT,
125 'This failure belongs in this test only if '
126 '"CxxExceptionInConstructorTest" (no quotes) '
127 'appears on the same line as words "called unexpectedly"')
129 if ('CxxExceptionInDestructorTest.ThrowsExceptionInDestructor' in
132 def testCatchesCxxExceptionsInFixtureDestructor(self):
133 self.assert_('C++ exception with description '
134 '"Standard C++ exception" thrown '
135 'in the test fixture\'s destructor'
137 self.assert_('CxxExceptionInDestructorTest::TearDownTestCase() '
138 'called as expected.'
141 def testCatchesCxxExceptionsInSetUpTestCase(self):
142 self.assert_('C++ exception with description "Standard C++ exception"'
143 ' thrown in SetUpTestCase()'
145 self.assert_('CxxExceptionInConstructorTest::TearDownTestCase() '
146 'called as expected.'
148 self.assert_('CxxExceptionInSetUpTestCaseTest constructor '
149 'called as expected.'
151 self.assert_('CxxExceptionInSetUpTestCaseTest destructor '
152 'called as expected.'
154 self.assert_('CxxExceptionInSetUpTestCaseTest::SetUp() '
155 'called as expected.'
157 self.assert_('CxxExceptionInSetUpTestCaseTest::TearDown() '
158 'called as expected.'
160 self.assert_('CxxExceptionInSetUpTestCaseTest test body '
161 'called as expected.'
164 def testCatchesCxxExceptionsInTearDownTestCase(self):
165 self.assert_('C++ exception with description "Standard C++ exception"'
166 ' thrown in TearDownTestCase()'
169 def testCatchesCxxExceptionsInSetUp(self):
170 self.assert_('C++ exception with description "Standard C++ exception"'
173 self.assert_('CxxExceptionInSetUpTest::TearDownTestCase() '
174 'called as expected.'
176 self.assert_('CxxExceptionInSetUpTest destructor '
177 'called as expected.'
179 self.assert_('CxxExceptionInSetUpTest::TearDown() '
180 'called as expected.'
182 self.assert_('unexpected' not in EX_BINARY_OUTPUT,
183 'This failure belongs in this test only if '
184 '"CxxExceptionInSetUpTest" (no quotes) '
185 'appears on the same line as words "called unexpectedly"')
187 def testCatchesCxxExceptionsInTearDown(self):
188 self.assert_('C++ exception with description "Standard C++ exception"'
189 ' thrown in TearDown()'
191 self.assert_('CxxExceptionInTearDownTest::TearDownTestCase() '
192 'called as expected.'
194 self.assert_('CxxExceptionInTearDownTest destructor '
195 'called as expected.'
198 def testCatchesCxxExceptionsInTestBody(self):
199 self.assert_('C++ exception with description "Standard C++ exception"'
200 ' thrown in the test body'
202 self.assert_('CxxExceptionInTestBodyTest::TearDownTestCase() '
203 'called as expected.'
205 self.assert_('CxxExceptionInTestBodyTest destructor '
206 'called as expected.'
208 self.assert_('CxxExceptionInTestBodyTest::TearDown() '
209 'called as expected.'
212 def testCatchesNonStdCxxExceptions(self):
213 self.assert_('Unknown C++ exception thrown in the test body'
216 def testUnhandledCxxExceptionsAbortTheProgram(self):
217 # Filters out SEH exception tests on Windows. Unhandled SEH exceptions
218 # cause tests to show pop-up windows there.
219 FITLER_OUT_SEH_TESTS_FLAG = FILTER_FLAG + '=-*Seh*'
220 # By default, Google Test doesn't catch the exceptions.
221 uncaught_exceptions_ex_binary_output = gtest_test_utils.Subprocess(
223 NO_CATCH_EXCEPTIONS_FLAG,
224 FITLER_OUT_SEH_TESTS_FLAG],
227 self.assert_('Unhandled C++ exception terminating the program'
228 in uncaught_exceptions_ex_binary_output)
229 self.assert_('unexpected' not in uncaught_exceptions_ex_binary_output)
232 if __name__ == '__main__':
233 gtest_test_utils.Main()