415 lines
14 KiB
C++
415 lines
14 KiB
C++
// 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;
|
|
(void)n;
|
|
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;
|
|
(void)n;
|
|
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
|