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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/fmt/test/gtest-extra-test.cc | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/fmt/test/gtest-extra-test.cc | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/src/fmt/test/gtest-extra-test.cc b/src/fmt/test/gtest-extra-test.cc new file mode 100644 index 000000000..69e42bc68 --- /dev/null +++ b/src/fmt/test/gtest-extra-test.cc @@ -0,0 +1,413 @@ +// Formatting library for C++ - tests of custom Google Test assertions +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "gtest-extra.h" + +#include <gtest/gtest-spi.h> + +#include <cstring> +#include <memory> +#include <stdexcept> + +#include "fmt/os.h" +#include "util.h" + +// Tests that assertion macros evaluate their arguments exactly once. +namespace { +class single_evaluation_test : public ::testing::Test { + protected: + single_evaluation_test() { + p_ = s_; + a_ = 0; + b_ = 0; + } + + static const char* const s_; + static const char* p_; + + static int a_; + static int b_; +}; +} // namespace + +const char* const single_evaluation_test::s_ = "01234"; +const char* single_evaluation_test::p_; +int single_evaluation_test::a_; +int single_evaluation_test::b_; + +void do_nothing() {} + +FMT_NORETURN void throw_exception() { throw std::runtime_error("test"); } + +FMT_NORETURN 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(single_evaluation_test, failed_expect_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(single_evaluation_test, failed_expect_system_error) { + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, p_++), + "01234"); + EXPECT_EQ(s_ + 1, p_); +} + +// Tests that assertion arguments are evaluated exactly once. +TEST_F(single_evaluation_test, exception_tests) { + // 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(single_evaluation_test, system_error_tests) { + // 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_); +} + +#if FMT_USE_FCNTL +// Tests that when EXPECT_WRITE fails, it evaluates its message argument +// exactly once. +TEST_F(single_evaluation_test, failed_expect_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(single_evaluation_test, write_tests) { + // 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 EXPECT_WRITE. +TEST(gtest_extra_test, 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(gtest_extra_test, expect_write_streaming) { + EXPECT_WRITE(stdout, std::printf("test"), "test") << "unexpected failure"; + EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), "other") + << "expected failure", + "expected failure"); +} +#endif // FMT_USE_FCNTL + +// Tests that the compiler will not complain about unreachable code in the +// EXPECT_THROW_MSG macro. +TEST(gtest_extra_test, expect_throw_no_unreachable_code_warning) { + 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(gtest_extra_test, expect_system_error_no_unreachable_code_warning) { + 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(gtest_extra_test, expect_throw_behaves_like_single_statement) { + 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(gtest_extra_test, expect_system_error_behaves_like_single_statement) { + 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(gtest_extra_test, expect_write_behaves_like_single_statement) { + 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(gtest_extra_test, 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(gtest_extra_test, 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 std::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 std::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: {}", + system_error_message(EDOM, "other"), + system_error_message(EDOM, "test"))); +} + +TEST(gtest_extra_test, expect_throw_msg_streaming) { + 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(gtest_extra_test, expect_system_error_streaming) { + 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"); +} + +#if FMT_USE_FCNTL + +using fmt::buffered_file; +using fmt::file; + +TEST(output_redirect_test, scoped_redirect) { + file read_end, write_end; + file::pipe(read_end, write_end); + { + buffered_file file(write_end.fdopen("w")); + std::fprintf(file.get(), "[[["); + { + output_redirect redir(file.get()); + std::fprintf(file.get(), "censored"); + } + std::fprintf(file.get(), "]]]"); + } + EXPECT_READ(read_end, "[[[]]]"); +} + +// Test that output_redirect handles errors in flush correctly. +TEST(output_redirect_test, flush_error_in_ctor) { + 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); + buffered_file f = write_end.fdopen("w"); + // Put a character in a file buffer. + EXPECT_EQ('x', fputc('x', f.get())); + FMT_POSIX(close(write_fd)); + std::unique_ptr<output_redirect> redir{nullptr}; + EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new output_redirect(f.get())), EBADF, + "cannot flush stream"); + redir.reset(nullptr); + write_copy.dup2(write_fd); // "undo" close or dtor will fail +} + +TEST(output_redirect_test, dup_error_in_ctor) { + buffered_file f = open_buffered_file(); + int fd = (f.descriptor)(); + file copy = file::dup(fd); + FMT_POSIX(close(fd)); + std::unique_ptr<output_redirect> redir{nullptr}; + EXPECT_SYSTEM_ERROR_NOASSERT( + redir.reset(new output_redirect(f.get())), EBADF, + fmt::format("cannot duplicate file descriptor {}", fd)); + copy.dup2(fd); // "undo" close or dtor will fail +} + +TEST(output_redirect_test, restore_and_read) { + file read_end, write_end; + file::pipe(read_end, write_end); + buffered_file file(write_end.fdopen("w")); + std::fprintf(file.get(), "[[["); + output_redirect redir(file.get()); + std::fprintf(file.get(), "censored"); + EXPECT_EQ("censored", redir.restore_and_read()); + EXPECT_EQ("", redir.restore_and_read()); + std::fprintf(file.get(), "]]]"); + file = buffered_file(); + EXPECT_READ(read_end, "[[[]]]"); +} + +// Test that OutputRedirect handles errors in flush correctly. +TEST(output_redirect_test, flush_error_in_restore_and_read) { + 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); + buffered_file f = write_end.fdopen("w"); + output_redirect 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(output_redirect_test, error_in_dtor) { + 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); + buffered_file f = write_end.fdopen("w"); + std::unique_ptr<output_redirect> redir(new output_redirect(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(nullptr)); + }, + system_error_message(EBADF, "cannot flush stream")); + write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail +} + +#endif // FMT_USE_FCNTL |