mirror of
https://github.com/fmtlib/fmt.git
synced 2024-12-12 02:10:09 +00:00
157 lines
7.0 KiB
C++
157 lines
7.0 KiB
C++
// Formatting library for C++ - custom Google Test assertions
|
|
//
|
|
// Copyright (c) 2012 - present, Victor Zverovich
|
|
// All rights reserved.
|
|
//
|
|
// For the license information refer to format.h.
|
|
|
|
#ifndef FMT_GTEST_EXTRA_H_
|
|
#define FMT_GTEST_EXTRA_H_
|
|
|
|
#include <string>
|
|
|
|
#include "fmt/os.h"
|
|
#include "gmock.h"
|
|
|
|
#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 format_system_error(int error_code, fmt::string_view message);
|
|
|
|
#define EXPECT_SYSTEM_ERROR(statement, error_code, message) \
|
|
EXPECT_THROW_MSG(statement, fmt::system_error, \
|
|
format_system_error(error_code, message))
|
|
|
|
#if FMT_USE_FCNTL
|
|
|
|
// 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_;
|
|
fmt::file original_; // Original file passed to redirector.
|
|
fmt::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;
|
|
|
|
// Restores the original file, reads output from the pipe into a string
|
|
// and returns it.
|
|
std::string restore_and_read();
|
|
};
|
|
|
|
# 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.restore_and_read(); \
|
|
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_)
|
|
|
|
# ifdef _MSC_VER
|
|
|
|
// Suppresses Windows assertions on invalid file descriptors, making
|
|
// POSIX functions return proper error codes instead of crashing on Windows.
|
|
class SuppressAssert {
|
|
private:
|
|
_invalid_parameter_handler original_handler_;
|
|
int original_report_mode_;
|
|
|
|
static void handle_invalid_parameter(const wchar_t*, const wchar_t*,
|
|
const wchar_t*, unsigned, uintptr_t) {}
|
|
|
|
public:
|
|
SuppressAssert()
|
|
: original_handler_(
|
|
_set_invalid_parameter_handler(handle_invalid_parameter)),
|
|
original_report_mode_(_CrtSetReportMode(_CRT_ASSERT, 0)) {}
|
|
~SuppressAssert() {
|
|
_set_invalid_parameter_handler(original_handler_);
|
|
_CrtSetReportMode(_CRT_ASSERT, original_report_mode_);
|
|
}
|
|
};
|
|
|
|
# define SUPPRESS_ASSERT(statement) \
|
|
{ \
|
|
SuppressAssert sa; \
|
|
statement; \
|
|
}
|
|
# else
|
|
# define SUPPRESS_ASSERT(statement) statement
|
|
# endif // _MSC_VER
|
|
|
|
# define EXPECT_SYSTEM_ERROR_NOASSERT(statement, error_code, message) \
|
|
EXPECT_SYSTEM_ERROR(SUPPRESS_ASSERT(statement), error_code, message)
|
|
|
|
// Attempts to read count characters from a file.
|
|
std::string read(fmt::file& f, size_t count);
|
|
|
|
# define EXPECT_READ(file, expected_content) \
|
|
EXPECT_EQ(expected_content, \
|
|
read(file, fmt::string_view(expected_content).size()))
|
|
|
|
#else
|
|
# define EXPECT_WRITE(file, statement, expected_output) SUCCEED()
|
|
#endif // FMT_USE_FCNTL
|
|
|
|
template <typename Mock> struct ScopedMock : testing::StrictMock<Mock> {
|
|
ScopedMock() { Mock::instance = this; }
|
|
~ScopedMock() { Mock::instance = nullptr; }
|
|
};
|
|
|
|
#endif // FMT_GTEST_EXTRA_H_
|