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googletest-env-var-test.py
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Mon, Oct 28, 12:00
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text/x-python
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R9484 sp4e-homework-lars-bertil
googletest-env-var-test.py
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#!/usr/bin/env python
#
# Copyright 2008, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Verifies that Google Test correctly parses environment variables."""
import
os
import
gtest_test_utils
IS_WINDOWS
=
os
.
name
==
'nt'
IS_LINUX
=
os
.
name
==
'posix'
and
os
.
uname
()[
0
]
==
'Linux'
COMMAND
=
gtest_test_utils
.
GetTestExecutablePath
(
'googletest-env-var-test_'
)
environ
=
os
.
environ
.
copy
()
def
AssertEq
(
expected
,
actual
):
if
expected
!=
actual
:
print
'Expected:
%s
'
%
(
expected
,)
print
' Actual:
%s
'
%
(
actual
,)
raise
AssertionError
def
SetEnvVar
(
env_var
,
value
):
"""Sets the env variable to 'value'; unsets it when 'value' is None."""
if
value
is
not
None
:
environ
[
env_var
]
=
value
elif
env_var
in
environ
:
del
environ
[
env_var
]
def
GetFlag
(
flag
):
"""Runs googletest-env-var-test_ and returns its output."""
args
=
[
COMMAND
]
if
flag
is
not
None
:
args
+=
[
flag
]
return
gtest_test_utils
.
Subprocess
(
args
,
env
=
environ
)
.
output
def
TestFlag
(
flag
,
test_val
,
default_val
):
"""Verifies that the given flag is affected by the corresponding env var."""
env_var
=
'GTEST_'
+
flag
.
upper
()
SetEnvVar
(
env_var
,
test_val
)
AssertEq
(
test_val
,
GetFlag
(
flag
))
SetEnvVar
(
env_var
,
None
)
AssertEq
(
default_val
,
GetFlag
(
flag
))
class
GTestEnvVarTest
(
gtest_test_utils
.
TestCase
):
def
testEnvVarAffectsFlag
(
self
):
"""Tests that environment variable should affect the corresponding flag."""
TestFlag
(
'break_on_failure'
,
'1'
,
'0'
)
TestFlag
(
'color'
,
'yes'
,
'auto'
)
TestFlag
(
'filter'
,
'FooTest.Bar'
,
'*'
)
SetEnvVar
(
'XML_OUTPUT_FILE'
,
None
)
# For 'output' test
TestFlag
(
'output'
,
'xml:tmp/foo.xml'
,
''
)
TestFlag
(
'print_time'
,
'0'
,
'1'
)
TestFlag
(
'repeat'
,
'999'
,
'1'
)
TestFlag
(
'throw_on_failure'
,
'1'
,
'0'
)
TestFlag
(
'death_test_style'
,
'threadsafe'
,
'fast'
)
TestFlag
(
'catch_exceptions'
,
'0'
,
'1'
)
if
IS_LINUX
:
TestFlag
(
'death_test_use_fork'
,
'1'
,
'0'
)
TestFlag
(
'stack_trace_depth'
,
'0'
,
'100'
)
def
testXmlOutputFile
(
self
):
"""Tests that $XML_OUTPUT_FILE affects the output flag."""
SetEnvVar
(
'GTEST_OUTPUT'
,
None
)
SetEnvVar
(
'XML_OUTPUT_FILE'
,
'tmp/bar.xml'
)
AssertEq
(
'xml:tmp/bar.xml'
,
GetFlag
(
'output'
))
def
testXmlOutputFileOverride
(
self
):
"""Tests that $XML_OUTPUT_FILE is overridden by $GTEST_OUTPUT."""
SetEnvVar
(
'GTEST_OUTPUT'
,
'xml:tmp/foo.xml'
)
SetEnvVar
(
'XML_OUTPUT_FILE'
,
'tmp/bar.xml'
)
AssertEq
(
'xml:tmp/foo.xml'
,
GetFlag
(
'output'
))
if
__name__
==
'__main__'
:
gtest_test_utils
.
Main
()
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