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gtest_throw_on_failure_ex_test.cc
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Thu, May 16, 10:54
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R9484 sp4e-homework-lars-bertil
gtest_throw_on_failure_ex_test.cc
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// Copyright 2009, 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.
// Tests Google Test's throw-on-failure mode with exceptions enabled.
#include "gtest/gtest.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdexcept>
// Prints the given failure message and exits the program with
// non-zero. We use this instead of a Google Test assertion to
// indicate a failure, as the latter is been tested and cannot be
// relied on.
void
Fail
(
const
char
*
msg
)
{
printf
(
"FAILURE: %s
\n
"
,
msg
);
fflush
(
stdout
);
exit
(
1
);
}
// Tests that an assertion failure throws a subclass of
// std::runtime_error.
void
TestFailureThrowsRuntimeError
()
{
testing
::
GTEST_FLAG
(
throw_on_failure
)
=
true
;
// A successful assertion shouldn't throw.
try
{
EXPECT_EQ
(
3
,
3
);
}
catch
(...)
{
Fail
(
"A successful assertion wrongfully threw."
);
}
// A failed assertion should throw a subclass of std::runtime_error.
try
{
EXPECT_EQ
(
2
,
3
)
<<
"Expected failure"
;
}
catch
(
const
std
::
runtime_error
&
e
)
{
if
(
strstr
(
e
.
what
(),
"Expected failure"
)
!=
nullptr
)
return
;
printf
(
"%s"
,
"A failed assertion did throw an exception of the right type, "
"but the message is incorrect. Instead of containing
\"
Expected "
"failure
\"
, it is:
\n
"
);
Fail
(
e
.
what
());
}
catch
(...)
{
Fail
(
"A failed assertion threw the wrong type of exception."
);
}
Fail
(
"A failed assertion should've thrown but didn't."
);
}
int
main
(
int
argc
,
char
**
argv
)
{
testing
::
InitGoogleTest
(
&
argc
,
argv
);
// We want to ensure that people can use Google Test assertions in
// other testing frameworks, as long as they initialize Google Test
// properly and set the thrown-on-failure mode. Therefore, we don't
// use Google Test's constructs for defining and running tests
// (e.g. TEST and RUN_ALL_TESTS) here.
TestFailureThrowsRuntimeError
();
return
0
;
}
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