source: gtest-1.7.0/test/gtest_catch_exceptions_test.py@ 12756

Last change on this file since 12756 was 12746, checked in by hock@…, 11 years ago

integrated the Google Testing Framework (gtest)

and wrote an Hello World test, to ensure the framework is working..

  • Property svn:executable set to *
File size: 9.7 KB
Line 
1#!/usr/bin/env python
2#
3# Copyright 2010 Google Inc. All Rights Reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met:
8#
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
14# distribution.
15# * Neither the name of Google Inc. nor the names of its
16# contributors may be used to endorse or promote products derived from
17# this software without specific prior written permission.
18#
19# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31"""Tests Google Test's exception catching behavior.
32
33This script invokes gtest_catch_exceptions_test_ and
34gtest_catch_exceptions_ex_test_ (programs written with
35Google Test) and verifies their output.
36"""
37
38__author__ = 'vladl@google.com (Vlad Losev)'
39
40import os
41
42import gtest_test_utils
43
44# Constants.
45FLAG_PREFIX = '--gtest_'
46LIST_TESTS_FLAG = FLAG_PREFIX + 'list_tests'
47NO_CATCH_EXCEPTIONS_FLAG = FLAG_PREFIX + 'catch_exceptions=0'
48FILTER_FLAG = FLAG_PREFIX + 'filter'
49
50# Path to the gtest_catch_exceptions_ex_test_ binary, compiled with
51# exceptions enabled.
52EX_EXE_PATH = gtest_test_utils.GetTestExecutablePath(
53 'gtest_catch_exceptions_ex_test_')
54
55# Path to the gtest_catch_exceptions_test_ binary, compiled with
56# exceptions disabled.
57EXE_PATH = gtest_test_utils.GetTestExecutablePath(
58 'gtest_catch_exceptions_no_ex_test_')
59
60environ = gtest_test_utils.environ
61SetEnvVar = gtest_test_utils.SetEnvVar
62
63# Tests in this file run a Google-Test-based test program and expect it
64# to terminate prematurely. Therefore they are incompatible with
65# the premature-exit-file protocol by design. Unset the
66# premature-exit filepath to prevent Google Test from creating
67# the file.
68SetEnvVar(gtest_test_utils.PREMATURE_EXIT_FILE_ENV_VAR, None)
69
70TEST_LIST = gtest_test_utils.Subprocess(
71 [EXE_PATH, LIST_TESTS_FLAG], env=environ).output
72
73SUPPORTS_SEH_EXCEPTIONS = 'ThrowsSehException' in TEST_LIST
74
75if SUPPORTS_SEH_EXCEPTIONS:
76 BINARY_OUTPUT = gtest_test_utils.Subprocess([EXE_PATH], env=environ).output
77
78EX_BINARY_OUTPUT = gtest_test_utils.Subprocess(
79 [EX_EXE_PATH], env=environ).output
80
81
82# The tests.
83if SUPPORTS_SEH_EXCEPTIONS:
84 # pylint:disable-msg=C6302
85 class CatchSehExceptionsTest(gtest_test_utils.TestCase):
86 """Tests exception-catching behavior."""
87
88
89 def TestSehExceptions(self, test_output):
90 self.assert_('SEH exception with code 0x2a thrown '
91 'in the test fixture\'s constructor'
92 in test_output)
93 self.assert_('SEH exception with code 0x2a thrown '
94 'in the test fixture\'s destructor'
95 in test_output)
96 self.assert_('SEH exception with code 0x2a thrown in SetUpTestCase()'
97 in test_output)
98 self.assert_('SEH exception with code 0x2a thrown in TearDownTestCase()'
99 in test_output)
100 self.assert_('SEH exception with code 0x2a thrown in SetUp()'
101 in test_output)
102 self.assert_('SEH exception with code 0x2a thrown in TearDown()'
103 in test_output)
104 self.assert_('SEH exception with code 0x2a thrown in the test body'
105 in test_output)
106
107 def testCatchesSehExceptionsWithCxxExceptionsEnabled(self):
108 self.TestSehExceptions(EX_BINARY_OUTPUT)
109
110 def testCatchesSehExceptionsWithCxxExceptionsDisabled(self):
111 self.TestSehExceptions(BINARY_OUTPUT)
112
113
114class CatchCxxExceptionsTest(gtest_test_utils.TestCase):
115 """Tests C++ exception-catching behavior.
116
117 Tests in this test case verify that:
118 * C++ exceptions are caught and logged as C++ (not SEH) exceptions
119 * Exception thrown affect the remainder of the test work flow in the
120 expected manner.
121 """
122
123 def testCatchesCxxExceptionsInFixtureConstructor(self):
124 self.assert_('C++ exception with description '
125 '"Standard C++ exception" thrown '
126 'in the test fixture\'s constructor'
127 in EX_BINARY_OUTPUT)
128 self.assert_('unexpected' not in EX_BINARY_OUTPUT,
129 'This failure belongs in this test only if '
130 '"CxxExceptionInConstructorTest" (no quotes) '
131 'appears on the same line as words "called unexpectedly"')
132
133 if ('CxxExceptionInDestructorTest.ThrowsExceptionInDestructor' in
134 EX_BINARY_OUTPUT):
135
136 def testCatchesCxxExceptionsInFixtureDestructor(self):
137 self.assert_('C++ exception with description '
138 '"Standard C++ exception" thrown '
139 'in the test fixture\'s destructor'
140 in EX_BINARY_OUTPUT)
141 self.assert_('CxxExceptionInDestructorTest::TearDownTestCase() '
142 'called as expected.'
143 in EX_BINARY_OUTPUT)
144
145 def testCatchesCxxExceptionsInSetUpTestCase(self):
146 self.assert_('C++ exception with description "Standard C++ exception"'
147 ' thrown in SetUpTestCase()'
148 in EX_BINARY_OUTPUT)
149 self.assert_('CxxExceptionInConstructorTest::TearDownTestCase() '
150 'called as expected.'
151 in EX_BINARY_OUTPUT)
152 self.assert_('CxxExceptionInSetUpTestCaseTest constructor '
153 'called as expected.'
154 in EX_BINARY_OUTPUT)
155 self.assert_('CxxExceptionInSetUpTestCaseTest destructor '
156 'called as expected.'
157 in EX_BINARY_OUTPUT)
158 self.assert_('CxxExceptionInSetUpTestCaseTest::SetUp() '
159 'called as expected.'
160 in EX_BINARY_OUTPUT)
161 self.assert_('CxxExceptionInSetUpTestCaseTest::TearDown() '
162 'called as expected.'
163 in EX_BINARY_OUTPUT)
164 self.assert_('CxxExceptionInSetUpTestCaseTest test body '
165 'called as expected.'
166 in EX_BINARY_OUTPUT)
167
168 def testCatchesCxxExceptionsInTearDownTestCase(self):
169 self.assert_('C++ exception with description "Standard C++ exception"'
170 ' thrown in TearDownTestCase()'
171 in EX_BINARY_OUTPUT)
172
173 def testCatchesCxxExceptionsInSetUp(self):
174 self.assert_('C++ exception with description "Standard C++ exception"'
175 ' thrown in SetUp()'
176 in EX_BINARY_OUTPUT)
177 self.assert_('CxxExceptionInSetUpTest::TearDownTestCase() '
178 'called as expected.'
179 in EX_BINARY_OUTPUT)
180 self.assert_('CxxExceptionInSetUpTest destructor '
181 'called as expected.'
182 in EX_BINARY_OUTPUT)
183 self.assert_('CxxExceptionInSetUpTest::TearDown() '
184 'called as expected.'
185 in EX_BINARY_OUTPUT)
186 self.assert_('unexpected' not in EX_BINARY_OUTPUT,
187 'This failure belongs in this test only if '
188 '"CxxExceptionInSetUpTest" (no quotes) '
189 'appears on the same line as words "called unexpectedly"')
190
191 def testCatchesCxxExceptionsInTearDown(self):
192 self.assert_('C++ exception with description "Standard C++ exception"'
193 ' thrown in TearDown()'
194 in EX_BINARY_OUTPUT)
195 self.assert_('CxxExceptionInTearDownTest::TearDownTestCase() '
196 'called as expected.'
197 in EX_BINARY_OUTPUT)
198 self.assert_('CxxExceptionInTearDownTest destructor '
199 'called as expected.'
200 in EX_BINARY_OUTPUT)
201
202 def testCatchesCxxExceptionsInTestBody(self):
203 self.assert_('C++ exception with description "Standard C++ exception"'
204 ' thrown in the test body'
205 in EX_BINARY_OUTPUT)
206 self.assert_('CxxExceptionInTestBodyTest::TearDownTestCase() '
207 'called as expected.'
208 in EX_BINARY_OUTPUT)
209 self.assert_('CxxExceptionInTestBodyTest destructor '
210 'called as expected.'
211 in EX_BINARY_OUTPUT)
212 self.assert_('CxxExceptionInTestBodyTest::TearDown() '
213 'called as expected.'
214 in EX_BINARY_OUTPUT)
215
216 def testCatchesNonStdCxxExceptions(self):
217 self.assert_('Unknown C++ exception thrown in the test body'
218 in EX_BINARY_OUTPUT)
219
220 def testUnhandledCxxExceptionsAbortTheProgram(self):
221 # Filters out SEH exception tests on Windows. Unhandled SEH exceptions
222 # cause tests to show pop-up windows there.
223 FITLER_OUT_SEH_TESTS_FLAG = FILTER_FLAG + '=-*Seh*'
224 # By default, Google Test doesn't catch the exceptions.
225 uncaught_exceptions_ex_binary_output = gtest_test_utils.Subprocess(
226 [EX_EXE_PATH,
227 NO_CATCH_EXCEPTIONS_FLAG,
228 FITLER_OUT_SEH_TESTS_FLAG],
229 env=environ).output
230
231 self.assert_('Unhandled C++ exception terminating the program'
232 in uncaught_exceptions_ex_binary_output)
233 self.assert_('unexpected' not in uncaught_exceptions_ex_binary_output)
234
235
236if __name__ == '__main__':
237 gtest_test_utils.Main()
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