media/webrtc/trunk/testing/gtest/test/gtest_env_var_test.py

branch
TOR_BUG_3246
changeset 5
4ab42b5ab56c
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-1:000000000000 0:d5a6e415f466
1 #!/usr/bin/env python
2 #
3 # Copyright 2008, Google Inc.
4 # All rights reserved.
5 #
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions are
8 # met:
9 #
10 # * Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # * Redistributions in binary form must reproduce the above
13 # copyright notice, this list of conditions and the following disclaimer
14 # in the documentation and/or other materials provided with the
15 # distribution.
16 # * Neither the name of Google Inc. nor the names of its
17 # contributors may be used to endorse or promote products derived from
18 # this software without specific prior written permission.
19 #
20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32 """Verifies that Google Test correctly parses environment variables."""
33
34 __author__ = 'wan@google.com (Zhanyong Wan)'
35
36 import os
37 import gtest_test_utils
38
39
40 IS_WINDOWS = os.name == 'nt'
41 IS_LINUX = os.name == 'posix' and os.uname()[0] == 'Linux'
42
43 COMMAND = gtest_test_utils.GetTestExecutablePath('gtest_env_var_test_')
44
45 environ = os.environ.copy()
46
47
48 def AssertEq(expected, actual):
49 if expected != actual:
50 print 'Expected: %s' % (expected,)
51 print ' Actual: %s' % (actual,)
52 raise AssertionError
53
54
55 def SetEnvVar(env_var, value):
56 """Sets the env variable to 'value'; unsets it when 'value' is None."""
57
58 if value is not None:
59 environ[env_var] = value
60 elif env_var in environ:
61 del environ[env_var]
62
63
64 def GetFlag(flag):
65 """Runs gtest_env_var_test_ and returns its output."""
66
67 args = [COMMAND]
68 if flag is not None:
69 args += [flag]
70 return gtest_test_utils.Subprocess(args, env=environ,
71 capture_stderr=False).output
72
73
74 def TestFlag(flag, test_val, default_val):
75 """Verifies that the given flag is affected by the corresponding env var."""
76
77 env_var = 'GTEST_' + flag.upper()
78 SetEnvVar(env_var, test_val)
79 AssertEq(test_val, GetFlag(flag))
80 SetEnvVar(env_var, None)
81 AssertEq(default_val, GetFlag(flag))
82
83
84 class GTestEnvVarTest(gtest_test_utils.TestCase):
85 def testEnvVarAffectsFlag(self):
86 """Tests that environment variable should affect the corresponding flag."""
87
88 TestFlag('break_on_failure', '1', '0')
89 TestFlag('color', 'yes', 'auto')
90 TestFlag('filter', 'FooTest.Bar', '*')
91 TestFlag('output', 'xml:tmp/foo.xml', '')
92 TestFlag('print_time', '0', '1')
93 TestFlag('repeat', '999', '1')
94 TestFlag('throw_on_failure', '1', '0')
95 TestFlag('death_test_style', 'threadsafe', 'fast')
96 TestFlag('catch_exceptions', '0', '1')
97
98 if IS_LINUX:
99 TestFlag('death_test_use_fork', '1', '0')
100 TestFlag('stack_trace_depth', '0', '100')
101
102
103 if __name__ == '__main__':
104 gtest_test_utils.Main()

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