3 # Copyright 2006, Google Inc.
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32 """Unit test for Google Test's --gtest_list_tests flag.
34 A user can ask Google Test to list all tests by specifying the
35 --gtest_list_tests flag. This script tests such functionality
36 by invoking gtest_list_tests_unittest_ (a program written with
37 Google Test) the command line flags.
40 __author__ = 'phanna@google.com (Patrick Hanna)'
42 import gtest_test_utils
47 # The command line flag for enabling/disabling listing all tests.
48 LIST_TESTS_FLAG = 'gtest_list_tests'
50 # Path to the gtest_list_tests_unittest_ program.
51 EXE_PATH = gtest_test_utils.GetTestExecutablePath('gtest_list_tests_unittest_')
53 # The expected output when running gtest_list_tests_unittest_ with
55 EXPECTED_OUTPUT_NO_FILTER = """FooDeathTest.
72 # The expected output when running gtest_list_tests_unittest_ with
73 # --gtest_list_tests and --gtest_filter=Foo*.
74 EXPECTED_OUTPUT_FILTER_FOO = """FooDeathTest.
92 """Runs gtest_list_tests_unittest_ and returns the list of tests printed."""
94 return gtest_test_utils.Subprocess([EXE_PATH] + args,
95 capture_stderr=False).output
100 class GTestListTestsUnitTest(gtest_test_utils.TestCase):
101 """Tests using the --gtest_list_tests flag to list all tests."""
103 def RunAndVerify(self, flag_value, expected_output, other_flag):
104 """Runs gtest_list_tests_unittest_ and verifies that it prints
108 flag_value: value of the --gtest_list_tests flag;
109 None if the flag should not be present.
111 expected_output: the expected output after running command;
113 other_flag: a different flag to be passed to command
114 along with gtest_list_tests;
115 None if the flag should not be present.
118 if flag_value is None:
120 flag_expression = 'not set'
121 elif flag_value == '0':
122 flag = '--%s=0' % LIST_TESTS_FLAG
123 flag_expression = '0'
125 flag = '--%s' % LIST_TESTS_FLAG
126 flag_expression = '1'
130 if other_flag is not None:
135 msg = ('when %s is %s, the output of "%s" is "%s".' %
136 (LIST_TESTS_FLAG, flag_expression, ' '.join(args), output))
138 if expected_output is not None:
139 self.assert_(output == expected_output, msg)
141 self.assert_(output != EXPECTED_OUTPUT_NO_FILTER, msg)
143 def testDefaultBehavior(self):
144 """Tests the behavior of the default mode."""
146 self.RunAndVerify(flag_value=None,
147 expected_output=None,
151 """Tests using the --gtest_list_tests flag."""
153 self.RunAndVerify(flag_value='0',
154 expected_output=None,
156 self.RunAndVerify(flag_value='1',
157 expected_output=EXPECTED_OUTPUT_NO_FILTER,
160 def testOverrideNonFilterFlags(self):
161 """Tests that --gtest_list_tests overrides the non-filter flags."""
163 self.RunAndVerify(flag_value='1',
164 expected_output=EXPECTED_OUTPUT_NO_FILTER,
165 other_flag='--gtest_break_on_failure')
167 def testWithFilterFlags(self):
168 """Tests that --gtest_list_tests takes into account the
169 --gtest_filter flag."""
171 self.RunAndVerify(flag_value='1',
172 expected_output=EXPECTED_OUTPUT_FILTER_FOO,
173 other_flag='--gtest_filter=Foo*')
176 if __name__ == '__main__':
177 gtest_test_utils.Main()