144 lines
5.3 KiB
C++
144 lines
5.3 KiB
C++
/*
|
|
Custom Google Test assertions.
|
|
|
|
Copyright (c) 2012-2014, Victor Zverovich
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice, this
|
|
list of conditions and the following disclaimer.
|
|
2. 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.
|
|
|
|
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.
|
|
*/
|
|
|
|
#ifndef FMT_GTEST_EXTRA_H
|
|
#define FMT_GTEST_EXTRA_H
|
|
|
|
#include <string>
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#include "format.h"
|
|
|
|
#ifdef FMT_INCLUDE_POSIX_TEST
|
|
# include "posix-test.h"
|
|
#endif
|
|
|
|
#ifndef FMT_USE_FILE_DESCRIPTORS
|
|
# define FMT_USE_FILE_DESCRIPTORS 0
|
|
#endif
|
|
|
|
#if FMT_USE_FILE_DESCRIPTORS
|
|
# include "posix.h"
|
|
#endif
|
|
|
|
#define FMT_TEST_THROW_(statement, expected_exception, expected_message, fail) \
|
|
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
|
|
if (::testing::AssertionResult gtest_ar = ::testing::AssertionSuccess()) { \
|
|
std::string gtest_expected_message = expected_message; \
|
|
bool gtest_caught_expected = false; \
|
|
try { \
|
|
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
|
|
} \
|
|
catch (expected_exception const& e) { \
|
|
if (gtest_expected_message != e.what()) { \
|
|
gtest_ar \
|
|
<< #statement " throws an exception with a different message.\n" \
|
|
<< "Expected: " << gtest_expected_message << "\n" \
|
|
<< " Actual: " << e.what(); \
|
|
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
|
|
} \
|
|
gtest_caught_expected = true; \
|
|
} \
|
|
catch (...) { \
|
|
gtest_ar << \
|
|
"Expected: " #statement " throws an exception of type " \
|
|
#expected_exception ".\n Actual: it throws a different type."; \
|
|
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
|
|
} \
|
|
if (!gtest_caught_expected) { \
|
|
gtest_ar << \
|
|
"Expected: " #statement " throws an exception of type " \
|
|
#expected_exception ".\n Actual: it throws nothing."; \
|
|
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
|
|
} \
|
|
} else \
|
|
GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__): \
|
|
fail(gtest_ar.failure_message())
|
|
|
|
// Tests that the statement throws the expected exception and the exception's
|
|
// what() method returns expected message.
|
|
#define EXPECT_THROW_MSG(statement, expected_exception, expected_message) \
|
|
FMT_TEST_THROW_(statement, expected_exception, \
|
|
expected_message, GTEST_NONFATAL_FAILURE_)
|
|
|
|
std::string FormatSystemErrorMessage(int error_code, fmt::StringRef message);
|
|
|
|
#define EXPECT_SYSTEM_ERROR(statement, error_code, message) \
|
|
EXPECT_THROW_MSG(statement, fmt::SystemError, \
|
|
FormatSystemErrorMessage(error_code, message))
|
|
|
|
#if FMT_USE_FILE_DESCRIPTORS
|
|
|
|
// Captures file output by redirecting it to a pipe.
|
|
// The output it can handle is limited by the pipe capacity.
|
|
class OutputRedirect {
|
|
private:
|
|
FILE *file_;
|
|
File original_; // Original file passed to redirector.
|
|
File read_end_; // Read end of the pipe where the output is redirected.
|
|
|
|
GTEST_DISALLOW_COPY_AND_ASSIGN_(OutputRedirect);
|
|
|
|
void Flush();
|
|
void Restore();
|
|
|
|
public:
|
|
explicit OutputRedirect(FILE *file);
|
|
~OutputRedirect() FMT_NOEXCEPT(true);
|
|
|
|
// Restores the original file, reads output from the pipe into a string
|
|
// and returns it.
|
|
std::string RestoreAndRead();
|
|
};
|
|
|
|
#define FMT_TEST_WRITE_(statement, expected_output, file, fail) \
|
|
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
|
|
if (::testing::AssertionResult gtest_ar = ::testing::AssertionSuccess()) { \
|
|
std::string gtest_expected_output = expected_output; \
|
|
OutputRedirect gtest_redir(file); \
|
|
GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
|
|
std::string gtest_output = gtest_redir.RestoreAndRead(); \
|
|
if (gtest_output != gtest_expected_output) { \
|
|
gtest_ar \
|
|
<< #statement " produces different output.\n" \
|
|
<< "Expected: " << gtest_expected_output << "\n" \
|
|
<< " Actual: " << gtest_output; \
|
|
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
|
|
} \
|
|
} else \
|
|
GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__): \
|
|
fail(gtest_ar.failure_message())
|
|
|
|
// Tests that the statement writes the expected output to file.
|
|
#define EXPECT_WRITE(file, statement, expected_output) \
|
|
FMT_TEST_WRITE_(statement, expected_output, file, GTEST_NONFATAL_FAILURE_)
|
|
|
|
#endif // FMT_USE_FILE_DESCRIPTORS
|
|
|
|
#endif // FMT_GTEST_EXTRA_H
|