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gtest_list_output_unittest.py
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Wed, Jun 26, 01:12
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R9484 sp4e-homework-lars-bertil
gtest_list_output_unittest.py
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#!/usr/bin/env python
#
# Copyright 2006, 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.
"""Unit test for Google Test's --gtest_list_tests flag.
A user can ask Google Test to list all tests by specifying the
--gtest_list_tests flag. If output is requested, via --gtest_output=xml
or --gtest_output=json, the tests are listed, with extra information in the
output file.
This script tests such functionality by invoking gtest_list_output_unittest_
(a program written with Google Test) the command line flags.
"""
import
os
import
re
import
gtest_test_utils
GTEST_LIST_TESTS_FLAG
=
'--gtest_list_tests'
GTEST_OUTPUT_FLAG
=
'--gtest_output'
EXPECTED_XML
=
"""<\?xml version="1.0" encoding="UTF-8"\?>
<testsuites tests="2" name="AllTests">
<testsuite name="FooTest" tests="2">
<testcase name="Test1" file=".*gtest_list_output_unittest_.cc" line="43" />
<testcase name="Test2" file=".*gtest_list_output_unittest_.cc" line="45" />
</testsuite>
</testsuites>
"""
EXPECTED_JSON
=
"""{
"tests": 2,
"name": "AllTests",
"testsuites": \[
{
"name": "FooTest",
"tests": 2,
"testsuite": \[
{
"name": "Test1",
"file": ".*gtest_list_output_unittest_.cc",
"line": 43
},
{
"name": "Test2",
"file": ".*gtest_list_output_unittest_.cc",
"line": 45
}
\]
}
\]
}
"""
class
GTestListTestsOutputUnitTest
(
gtest_test_utils
.
TestCase
):
"""Unit test for Google Test's list tests with output to file functionality.
"""
def
testXml
(
self
):
"""Verifies XML output for listing tests in a Google Test binary.
Runs a test program that generates an empty XML output, and
tests that the XML output is expected.
"""
self
.
_TestOutput
(
'xml'
,
EXPECTED_XML
)
def
testJSON
(
self
):
"""Verifies XML output for listing tests in a Google Test binary.
Runs a test program that generates an empty XML output, and
tests that the XML output is expected.
"""
self
.
_TestOutput
(
'json'
,
EXPECTED_JSON
)
def
_GetOutput
(
self
,
out_format
):
file_path
=
os
.
path
.
join
(
gtest_test_utils
.
GetTempDir
(),
'test_out.'
+
out_format
)
gtest_prog_path
=
gtest_test_utils
.
GetTestExecutablePath
(
'gtest_list_output_unittest_'
)
command
=
([
gtest_prog_path
,
'
%s
=
%s
:
%s
'
%
(
GTEST_OUTPUT_FLAG
,
out_format
,
file_path
),
'--gtest_list_tests'
])
environ_copy
=
os
.
environ
.
copy
()
p
=
gtest_test_utils
.
Subprocess
(
command
,
env
=
environ_copy
,
working_dir
=
gtest_test_utils
.
GetTempDir
())
self
.
assert_
(
p
.
exited
)
self
.
assertEquals
(
0
,
p
.
exit_code
)
with
open
(
file_path
)
as
f
:
result
=
f
.
read
()
return
result
def
_TestOutput
(
self
,
test_format
,
expected_output
):
actual
=
self
.
_GetOutput
(
test_format
)
actual_lines
=
actual
.
splitlines
()
expected_lines
=
expected_output
.
splitlines
()
line_count
=
0
for
actual_line
in
actual_lines
:
expected_line
=
expected_lines
[
line_count
]
expected_line_re
=
re
.
compile
(
expected_line
.
strip
())
self
.
assert_
(
expected_line_re
.
match
(
actual_line
.
strip
()),
(
'actual output of "
%s
",
\n
'
'which does not match expected regex of "
%s
"
\n
'
'on line
%d
'
%
(
actual
,
expected_output
,
line_count
)))
line_count
=
line_count
+
1
if
__name__
==
'__main__'
:
os
.
environ
[
'GTEST_STACK_TRACE_DEPTH'
]
=
'1'
gtest_test_utils
.
Main
()
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