/external/fmt-master/test/gtest-extra-test.cc
C++ | 433 lines | 318 code | 53 blank | 62 comment | 9 complexity | a54387b06b03ea65fc627ae2c08aa7f1 MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.1, CC-BY-3.0
- /*
- Tests of 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.
- */
- #include "gtest-extra.h"
- #include <cstring>
- #include <algorithm>
- #include <stdexcept>
- #include <gtest/gtest-spi.h>
- #if defined(_WIN32) && !defined(__MINGW32__)
- # include <crtdbg.h> // for _CrtSetReportMode
- #endif // _WIN32
- #include "util.h"
- using testing::internal::scoped_ptr;
- namespace {
- // This is used to suppress coverity warnings about untrusted values.
- std::string sanitize(const std::string &s) {
- std::string result;
- for (std::string::const_iterator i = s.begin(), end = s.end(); i != end; ++i)
- result.push_back(static_cast<char>(*i & 0xff));
- return result;
- }
- // Tests that assertion macros evaluate their arguments exactly once.
- class SingleEvaluationTest : public ::testing::Test {
- protected:
- SingleEvaluationTest() {
- p_ = s_;
- a_ = 0;
- b_ = 0;
- }
- static const char* const s_;
- static const char* p_;
- static int a_;
- static int b_;
- };
- const char* const SingleEvaluationTest::s_ = "01234";
- const char* SingleEvaluationTest::p_;
- int SingleEvaluationTest::a_;
- int SingleEvaluationTest::b_;
- void do_nothing() {}
- void throw_exception() {
- throw std::runtime_error("test");
- }
- void throw_system_error() {
- throw fmt::system_error(EDOM, "test");
- }
- // Tests that when EXPECT_THROW_MSG fails, it evaluates its message argument
- // exactly once.
- TEST_F(SingleEvaluationTest, FailedEXPECT_THROW_MSG) {
- EXPECT_NONFATAL_FAILURE(
- EXPECT_THROW_MSG(throw_exception(), std::exception, p_++), "01234");
- EXPECT_EQ(s_ + 1, p_);
- }
- // Tests that when EXPECT_SYSTEM_ERROR fails, it evaluates its message argument
- // exactly once.
- TEST_F(SingleEvaluationTest, FailedEXPECT_SYSTEM_ERROR) {
- EXPECT_NONFATAL_FAILURE(
- EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, p_++), "01234");
- EXPECT_EQ(s_ + 1, p_);
- }
- // Tests that when EXPECT_WRITE fails, it evaluates its message argument
- // exactly once.
- TEST_F(SingleEvaluationTest, FailedEXPECT_WRITE) {
- EXPECT_NONFATAL_FAILURE(
- EXPECT_WRITE(stdout, std::printf("test"), p_++), "01234");
- EXPECT_EQ(s_ + 1, p_);
- }
- // Tests that assertion arguments are evaluated exactly once.
- TEST_F(SingleEvaluationTest, ExceptionTests) {
- // successful EXPECT_THROW_MSG
- EXPECT_THROW_MSG({ // NOLINT
- a_++;
- throw_exception();
- }, std::exception, (b_++, "test"));
- EXPECT_EQ(1, a_);
- EXPECT_EQ(1, b_);
- // failed EXPECT_THROW_MSG, throws different type
- EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG({ // NOLINT
- a_++;
- throw_exception();
- }, std::logic_error, (b_++, "test")), "throws a different type");
- EXPECT_EQ(2, a_);
- EXPECT_EQ(2, b_);
- // failed EXPECT_THROW_MSG, throws an exception with different message
- EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG({ // NOLINT
- a_++;
- throw_exception();
- }, std::exception, (b_++, "other")),
- "throws an exception with a different message");
- EXPECT_EQ(3, a_);
- EXPECT_EQ(3, b_);
- // failed EXPECT_THROW_MSG, throws nothing
- EXPECT_NONFATAL_FAILURE(
- EXPECT_THROW_MSG(a_++, std::exception, (b_++, "test")), "throws nothing");
- EXPECT_EQ(4, a_);
- EXPECT_EQ(4, b_);
- }
- TEST_F(SingleEvaluationTest, SystemErrorTests) {
- // successful EXPECT_SYSTEM_ERROR
- EXPECT_SYSTEM_ERROR({ // NOLINT
- a_++;
- throw_system_error();
- }, EDOM, (b_++, "test"));
- EXPECT_EQ(1, a_);
- EXPECT_EQ(1, b_);
- // failed EXPECT_SYSTEM_ERROR, throws different type
- EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR({ // NOLINT
- a_++;
- throw_exception();
- }, EDOM, (b_++, "test")), "throws a different type");
- EXPECT_EQ(2, a_);
- EXPECT_EQ(2, b_);
- // failed EXPECT_SYSTEM_ERROR, throws an exception with different message
- EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR({ // NOLINT
- a_++;
- throw_system_error();
- }, EDOM, (b_++, "other")),
- "throws an exception with a different message");
- EXPECT_EQ(3, a_);
- EXPECT_EQ(3, b_);
- // failed EXPECT_SYSTEM_ERROR, throws nothing
- EXPECT_NONFATAL_FAILURE(
- EXPECT_SYSTEM_ERROR(a_++, EDOM, (b_++, "test")), "throws nothing");
- EXPECT_EQ(4, a_);
- EXPECT_EQ(4, b_);
- }
- // Tests that assertion arguments are evaluated exactly once.
- TEST_F(SingleEvaluationTest, WriteTests) {
- // successful EXPECT_WRITE
- EXPECT_WRITE(stdout, { // NOLINT
- a_++;
- std::printf("test");
- }, (b_++, "test"));
- EXPECT_EQ(1, a_);
- EXPECT_EQ(1, b_);
- // failed EXPECT_WRITE
- EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, { // NOLINT
- a_++;
- std::printf("test");
- }, (b_++, "other")), "Actual: test");
- EXPECT_EQ(2, a_);
- EXPECT_EQ(2, b_);
- }
- // Tests that the compiler will not complain about unreachable code in the
- // EXPECT_THROW_MSG macro.
- TEST(ExpectThrowTest, DoesNotGenerateUnreachableCodeWarning) {
- int n = 0;
- using std::runtime_error;
- EXPECT_THROW_MSG(throw runtime_error(""), runtime_error, "");
- EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(n++, runtime_error, ""), "");
- EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(throw 1, runtime_error, ""), "");
- EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(
- throw runtime_error("a"), runtime_error, "b"), "");
- }
- // Tests that the compiler will not complain about unreachable code in the
- // EXPECT_SYSTEM_ERROR macro.
- TEST(ExpectSystemErrorTest, DoesNotGenerateUnreachableCodeWarning) {
- int n = 0;
- EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "test"), EDOM, "test");
- EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(n++, EDOM, ""), "");
- EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw 1, EDOM, ""), "");
- EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(
- throw fmt::system_error(EDOM, "aaa"), EDOM, "bbb"), "");
- }
- TEST(AssertionSyntaxTest, ExceptionAssertionBehavesLikeSingleStatement) {
- if (::testing::internal::AlwaysFalse())
- EXPECT_THROW_MSG(do_nothing(), std::exception, "");
- if (::testing::internal::AlwaysTrue())
- EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
- else
- do_nothing();
- }
- TEST(AssertionSyntaxTest, SystemErrorAssertionBehavesLikeSingleStatement) {
- if (::testing::internal::AlwaysFalse())
- EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "");
- if (::testing::internal::AlwaysTrue())
- EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
- else
- do_nothing();
- }
- TEST(AssertionSyntaxTest, WriteAssertionBehavesLikeSingleStatement) {
- if (::testing::internal::AlwaysFalse())
- EXPECT_WRITE(stdout, std::printf("x"), "x");
- if (::testing::internal::AlwaysTrue())
- EXPECT_WRITE(stdout, std::printf("x"), "x");
- else
- do_nothing();
- }
- // Tests EXPECT_THROW_MSG.
- TEST(ExpectTest, EXPECT_THROW_MSG) {
- EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_THROW_MSG(throw_exception(), std::logic_error, "test"),
- "Expected: throw_exception() throws an exception of "
- "type std::logic_error.\n Actual: it throws a different type.");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_THROW_MSG(do_nothing(), std::exception, "test"),
- "Expected: do_nothing() throws an exception of type std::exception.\n"
- " Actual: it throws nothing.");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_THROW_MSG(throw_exception(), std::exception, "other"),
- "throw_exception() throws an exception with a different message.\n"
- "Expected: other\n"
- " Actual: test");
- }
- // Tests EXPECT_SYSTEM_ERROR.
- TEST(ExpectTest, EXPECT_SYSTEM_ERROR) {
- EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_SYSTEM_ERROR(throw_exception(), EDOM, "test"),
- "Expected: throw_exception() throws an exception of "
- "type fmt::system_error.\n Actual: it throws a different type.");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "test"),
- "Expected: do_nothing() throws an exception of type fmt::system_error.\n"
- " Actual: it throws nothing.");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other"),
- fmt::format(
- "throw_system_error() throws an exception with a different message.\n"
- "Expected: {}\n"
- " Actual: {}",
- format_system_error(EDOM, "other"),
- format_system_error(EDOM, "test")));
- }
- // Tests EXPECT_WRITE.
- TEST(ExpectTest, EXPECT_WRITE) {
- EXPECT_WRITE(stdout, do_nothing(), "");
- EXPECT_WRITE(stdout, std::printf("test"), "test");
- EXPECT_WRITE(stderr, std::fprintf(stderr, "test"), "test");
- EXPECT_NONFATAL_FAILURE(
- EXPECT_WRITE(stdout, std::printf("that"), "this"),
- "Expected: this\n"
- " Actual: that");
- }
- TEST(StreamingAssertionsTest, EXPECT_THROW_MSG) {
- EXPECT_THROW_MSG(throw_exception(), std::exception, "test")
- << "unexpected failure";
- EXPECT_NONFATAL_FAILURE(
- EXPECT_THROW_MSG(throw_exception(), std::exception, "other")
- << "expected failure", "expected failure");
- }
- TEST(StreamingAssertionsTest, EXPECT_SYSTEM_ERROR) {
- EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test")
- << "unexpected failure";
- EXPECT_NONFATAL_FAILURE(
- EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other")
- << "expected failure", "expected failure");
- }
- TEST(StreamingAssertionsTest, EXPECT_WRITE) {
- EXPECT_WRITE(stdout, std::printf("test"), "test")
- << "unexpected failure";
- EXPECT_NONFATAL_FAILURE(
- EXPECT_WRITE(stdout, std::printf("test"), "other")
- << "expected failure", "expected failure");
- }
- TEST(UtilTest, FormatSystemError) {
- fmt::memory_buffer out;
- fmt::format_system_error(out, EDOM, "test message");
- EXPECT_EQ(to_string(out), format_system_error(EDOM, "test message"));
- }
- #if FMT_USE_FILE_DESCRIPTORS
- using fmt::BufferedFile;
- using fmt::ErrorCode;
- using fmt::File;
- TEST(ErrorCodeTest, Ctor) {
- EXPECT_EQ(0, ErrorCode().get());
- EXPECT_EQ(42, ErrorCode(42).get());
- }
- TEST(OutputRedirectTest, ScopedRedirect) {
- File read_end, write_end;
- File::pipe(read_end, write_end);
- {
- BufferedFile file(write_end.fdopen("w"));
- std::fprintf(file.get(), "[[[");
- {
- OutputRedirect redir(file.get());
- std::fprintf(file.get(), "censored");
- }
- std::fprintf(file.get(), "]]]");
- }
- EXPECT_READ(read_end, "[[[]]]");
- }
- // Test that OutputRedirect handles errors in flush correctly.
- TEST(OutputRedirectTest, FlushErrorInCtor) {
- File read_end, write_end;
- File::pipe(read_end, write_end);
- int write_fd = write_end.descriptor();
- File write_copy = write_end.dup(write_fd);
- BufferedFile f = write_end.fdopen("w");
- // Put a character in a file buffer.
- EXPECT_EQ('x', fputc('x', f.get()));
- FMT_POSIX(close(write_fd));
- scoped_ptr<OutputRedirect> redir;
- EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new OutputRedirect(f.get())),
- EBADF, "cannot flush stream");
- redir.reset();
- write_copy.dup2(write_fd); // "undo" close or dtor will fail
- }
- TEST(OutputRedirectTest, DupErrorInCtor) {
- BufferedFile f = open_buffered_file();
- int fd = (f.fileno)();
- File copy = File::dup(fd);
- FMT_POSIX(close(fd));
- scoped_ptr<OutputRedirect> redir;
- EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new OutputRedirect(f.get())),
- EBADF, fmt::format("cannot duplicate file descriptor {}", fd));
- copy.dup2(fd); // "undo" close or dtor will fail
- }
- TEST(OutputRedirectTest, RestoreAndRead) {
- File read_end, write_end;
- File::pipe(read_end, write_end);
- BufferedFile file(write_end.fdopen("w"));
- std::fprintf(file.get(), "[[[");
- OutputRedirect redir(file.get());
- std::fprintf(file.get(), "censored");
- EXPECT_EQ("censored", sanitize(redir.restore_and_read()));
- EXPECT_EQ("", sanitize(redir.restore_and_read()));
- std::fprintf(file.get(), "]]]");
- file = BufferedFile();
- EXPECT_READ(read_end, "[[[]]]");
- }
- // Test that OutputRedirect handles errors in flush correctly.
- TEST(OutputRedirectTest, FlushErrorInRestoreAndRead) {
- File read_end, write_end;
- File::pipe(read_end, write_end);
- int write_fd = write_end.descriptor();
- File write_copy = write_end.dup(write_fd);
- BufferedFile f = write_end.fdopen("w");
- OutputRedirect redir(f.get());
- // Put a character in a file buffer.
- EXPECT_EQ('x', fputc('x', f.get()));
- FMT_POSIX(close(write_fd));
- EXPECT_SYSTEM_ERROR_NOASSERT(redir.restore_and_read(),
- EBADF, "cannot flush stream");
- write_copy.dup2(write_fd); // "undo" close or dtor will fail
- }
- TEST(OutputRedirectTest, ErrorInDtor) {
- File read_end, write_end;
- File::pipe(read_end, write_end);
- int write_fd = write_end.descriptor();
- File write_copy = write_end.dup(write_fd);
- BufferedFile f = write_end.fdopen("w");
- scoped_ptr<OutputRedirect> redir(new OutputRedirect(f.get()));
- // Put a character in a file buffer.
- EXPECT_EQ('x', fputc('x', f.get()));
- EXPECT_WRITE(stderr, {
- // The close function must be called inside EXPECT_WRITE, otherwise
- // the system may recycle closed file descriptor when redirecting the
- // output in EXPECT_STDERR and the second close will break output
- // redirection.
- FMT_POSIX(close(write_fd));
- SUPPRESS_ASSERT(redir.reset());
- }, format_system_error(EBADF, "cannot flush stream"));
- write_copy.dup2(write_fd); // "undo" close or dtor of BufferedFile will fail
- }
- #endif // FMT_USE_FILE_DESCRIPTORS
- } // namespace