[ceph.git] / ceph / src / fmt / test / gtest-extra-test.cc

// 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
Commit	Line	Data
11fdf7f2 TL	1	// Formatting library for C++ - tests of custom Google Test assertions
	2	//
	3	// Copyright (c) 2012 - present, Victor Zverovich
	4	// All rights reserved.
	5	//
	6	// For the license information refer to format.h.
	7
	8	#include "gtest-extra.h"
	9
9f95a23c	10	#include <gtest/gtest-spi.h>
f67539c2	11
9f95a23c TL	12	#include <cstring>
9f95a23c TL	13	#include <memory>
11fdf7f2	14	#include <stdexcept>
11fdf7f2	15
20effc67	16	#include "fmt/os.h"
11fdf7f2 TL	17	#include "util.h"
11fdf7f2 TL	18
11fdf7f2	19	// Tests that assertion macros evaluate their arguments exactly once.
20effc67 TL	20	namespace {
20effc67 TL	21	class single_evaluation_test : public ::testing::Test {
11fdf7f2	22	protected:
20effc67	23	single_evaluation_test() {
11fdf7f2 TL	24	p_ = s_;
	25	a_ = 0;
	26	b_ = 0;
	27	}
	28
	29	static const char* const s_;
	30	static const char* p_;
	31
	32	static int a_;
	33	static int b_;
	34	};
20effc67	35	} // namespace
11fdf7f2	36
20effc67 TL	37	const char* const single_evaluation_test::s_ = "01234";
	38	const char* single_evaluation_test::p_;
	39	int single_evaluation_test::a_;
	40	int single_evaluation_test::b_;
11fdf7f2 TL	41
	42	void do_nothing() {}
	43
f67539c2	44	FMT_NORETURN void throw_exception() { throw std::runtime_error("test"); }
11fdf7f2	45
f67539c2 TL	46	FMT_NORETURN void throw_system_error() {
	47	throw fmt::system_error(EDOM, "test");
	48	}
11fdf7f2 TL	49
	50	// Tests that when EXPECT_THROW_MSG fails, it evaluates its message argument
	51	// exactly once.
20effc67	52	TEST_F(single_evaluation_test, failed_expect_throw_msg) {
11fdf7f2 TL	53	EXPECT_NONFATAL_FAILURE(
	54	EXPECT_THROW_MSG(throw_exception(), std::exception, p_++), "01234");
	55	EXPECT_EQ(s_ + 1, p_);
	56	}
	57
	58	// Tests that when EXPECT_SYSTEM_ERROR fails, it evaluates its message argument
	59	// exactly once.
20effc67	60	TEST_F(single_evaluation_test, failed_expect_system_error) {
9f95a23c TL	61	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, p_++),
9f95a23c TL	62	"01234");
11fdf7f2 TL	63	EXPECT_EQ(s_ + 1, p_);
	64	}
	65
11fdf7f2	66	// Tests that assertion arguments are evaluated exactly once.
20effc67	67	TEST_F(single_evaluation_test, exception_tests) {
11fdf7f2	68	// successful EXPECT_THROW_MSG
9f95a23c TL	69	EXPECT_THROW_MSG(
	70	{ // NOLINT
	71	a_++;
	72	throw_exception();
	73	},
	74	std::exception, (b_++, "test"));
11fdf7f2 TL	75	EXPECT_EQ(1, a_);
	76	EXPECT_EQ(1, b_);
	77
	78	// failed EXPECT_THROW_MSG, throws different type
9f95a23c TL	79	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(
	80	{ // NOLINT
	81	a_++;
	82	throw_exception();
	83	},
	84	std::logic_error, (b_++, "test")),
	85	"throws a different type");
11fdf7f2 TL	86	EXPECT_EQ(2, a_);
	87	EXPECT_EQ(2, b_);
	88
	89	// failed EXPECT_THROW_MSG, throws an exception with different message
9f95a23c TL	90	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(
	91	{ // NOLINT
	92	a_++;
	93	throw_exception();
	94	},
	95	std::exception, (b_++, "other")),
	96	"throws an exception with a different message");
11fdf7f2 TL	97	EXPECT_EQ(3, a_);
	98	EXPECT_EQ(3, b_);
	99
	100	// failed EXPECT_THROW_MSG, throws nothing
	101	EXPECT_NONFATAL_FAILURE(
	102	EXPECT_THROW_MSG(a_++, std::exception, (b_++, "test")), "throws nothing");
	103	EXPECT_EQ(4, a_);
	104	EXPECT_EQ(4, b_);
	105	}
	106
20effc67	107	TEST_F(single_evaluation_test, system_error_tests) {
11fdf7f2	108	// successful EXPECT_SYSTEM_ERROR
9f95a23c TL	109	EXPECT_SYSTEM_ERROR(
	110	{ // NOLINT
	111	a_++;
	112	throw_system_error();
	113	},
	114	EDOM, (b_++, "test"));
11fdf7f2 TL	115	EXPECT_EQ(1, a_);
	116	EXPECT_EQ(1, b_);
	117
	118	// failed EXPECT_SYSTEM_ERROR, throws different type
9f95a23c TL	119	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(
	120	{ // NOLINT
	121	a_++;
	122	throw_exception();
	123	},
	124	EDOM, (b_++, "test")),
	125	"throws a different type");
11fdf7f2 TL	126	EXPECT_EQ(2, a_);
	127	EXPECT_EQ(2, b_);
	128
	129	// failed EXPECT_SYSTEM_ERROR, throws an exception with different message
9f95a23c TL	130	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(
	131	{ // NOLINT
	132	a_++;
	133	throw_system_error();
	134	},
	135	EDOM, (b_++, "other")),
	136	"throws an exception with a different message");
11fdf7f2 TL	137	EXPECT_EQ(3, a_);
	138	EXPECT_EQ(3, b_);
	139
	140	// failed EXPECT_SYSTEM_ERROR, throws nothing
9f95a23c TL	141	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(a_++, EDOM, (b_++, "test")),
9f95a23c TL	142	"throws nothing");
11fdf7f2 TL	143	EXPECT_EQ(4, a_);
	144	EXPECT_EQ(4, b_);
	145	}
	146
f67539c2 TL	147	#if FMT_USE_FCNTL
	148	// Tests that when EXPECT_WRITE fails, it evaluates its message argument
	149	// exactly once.
20effc67	150	TEST_F(single_evaluation_test, failed_expect_write) {
f67539c2 TL	151	EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), p_++),
	152	"01234");
	153	EXPECT_EQ(s_ + 1, p_);
	154	}
	155
11fdf7f2	156	// Tests that assertion arguments are evaluated exactly once.
20effc67	157	TEST_F(single_evaluation_test, write_tests) {
11fdf7f2	158	// successful EXPECT_WRITE
f67539c2 TL	159	EXPECT_WRITE(
	160	stdout,
	161	{ // NOLINT
	162	a_++;
	163	std::printf("test");
	164	},
	165	(b_++, "test"));
11fdf7f2 TL	166	EXPECT_EQ(1, a_);
	167	EXPECT_EQ(1, b_);
	168
	169	// failed EXPECT_WRITE
f67539c2 TL	170	EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(
	171	stdout,
	172	{ // NOLINT
	173	a_++;
	174	std::printf("test");
	175	},
	176	(b_++, "other")),
9f95a23c	177	"Actual: test");
11fdf7f2 TL	178	EXPECT_EQ(2, a_);
	179	EXPECT_EQ(2, b_);
	180	}
	181
f67539c2	182	// Tests EXPECT_WRITE.
20effc67	183	TEST(gtest_extra_test, expect_write) {
f67539c2 TL	184	EXPECT_WRITE(stdout, do_nothing(), "");
	185	EXPECT_WRITE(stdout, std::printf("test"), "test");
	186	EXPECT_WRITE(stderr, std::fprintf(stderr, "test"), "test");
	187	EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("that"), "this"),
	188	"Expected: this\n"
	189	" Actual: that");
	190	}
	191
20effc67	192	TEST(gtest_extra_test, expect_write_streaming) {
f67539c2 TL	193	EXPECT_WRITE(stdout, std::printf("test"), "test") << "unexpected failure";
	194	EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), "other")
	195	<< "expected failure",
	196	"expected failure");
	197	}
	198	#endif // FMT_USE_FCNTL
	199
11fdf7f2 TL	200	// Tests that the compiler will not complain about unreachable code in the
11fdf7f2 TL	201	// EXPECT_THROW_MSG macro.
20effc67	202	TEST(gtest_extra_test, expect_throw_no_unreachable_code_warning) {
11fdf7f2 TL	203	int n = 0;
	204	using std::runtime_error;
	205	EXPECT_THROW_MSG(throw runtime_error(""), runtime_error, "");
	206	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(n++, runtime_error, ""), "");
	207	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(throw 1, runtime_error, ""), "");
9f95a23c TL	208	EXPECT_NONFATAL_FAILURE(
9f95a23c TL	209	EXPECT_THROW_MSG(throw runtime_error("a"), runtime_error, "b"), "");
11fdf7f2 TL	210	}
	211
	212	// Tests that the compiler will not complain about unreachable code in the
	213	// EXPECT_SYSTEM_ERROR macro.
20effc67	214	TEST(gtest_extra_test, expect_system_error_no_unreachable_code_warning) {
11fdf7f2 TL	215	int n = 0;
	216	EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "test"), EDOM, "test");
	217	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(n++, EDOM, ""), "");
	218	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw 1, EDOM, ""), "");
9f95a23c TL	219	EXPECT_NONFATAL_FAILURE(
	220	EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "aaa"), EDOM, "bbb"),
	221	"");
11fdf7f2 TL	222	}
11fdf7f2 TL	223
20effc67	224	TEST(gtest_extra_test, expect_throw_behaves_like_single_statement) {
11fdf7f2 TL	225	if (::testing::internal::AlwaysFalse())
	226	EXPECT_THROW_MSG(do_nothing(), std::exception, "");
	227
	228	if (::testing::internal::AlwaysTrue())
	229	EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
	230	else
	231	do_nothing();
	232	}
	233
20effc67	234	TEST(gtest_extra_test, expect_system_error_behaves_like_single_statement) {
11fdf7f2 TL	235	if (::testing::internal::AlwaysFalse())
	236	EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "");
	237
	238	if (::testing::internal::AlwaysTrue())
	239	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
	240	else
	241	do_nothing();
	242	}
	243
20effc67	244	TEST(gtest_extra_test, expect_write_behaves_like_single_statement) {
11fdf7f2 TL	245	if (::testing::internal::AlwaysFalse())
	246	EXPECT_WRITE(stdout, std::printf("x"), "x");
	247
	248	if (::testing::internal::AlwaysTrue())
	249	EXPECT_WRITE(stdout, std::printf("x"), "x");
	250	else
	251	do_nothing();
	252	}
	253
	254	// Tests EXPECT_THROW_MSG.
20effc67	255	TEST(gtest_extra_test, expect_throw_msg) {
11fdf7f2 TL	256	EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
	257	EXPECT_NONFATAL_FAILURE(
	258	EXPECT_THROW_MSG(throw_exception(), std::logic_error, "test"),
	259	"Expected: throw_exception() throws an exception of "
	260	"type std::logic_error.\n Actual: it throws a different type.");
	261	EXPECT_NONFATAL_FAILURE(
	262	EXPECT_THROW_MSG(do_nothing(), std::exception, "test"),
	263	"Expected: do_nothing() throws an exception of type std::exception.\n"
	264	" Actual: it throws nothing.");
	265	EXPECT_NONFATAL_FAILURE(
	266	EXPECT_THROW_MSG(throw_exception(), std::exception, "other"),
	267	"throw_exception() throws an exception with a different message.\n"
	268	"Expected: other\n"
	269	" Actual: test");
	270	}
	271
	272	// Tests EXPECT_SYSTEM_ERROR.
20effc67	273	TEST(gtest_extra_test, expect_system_error) {
11fdf7f2 TL	274	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
	275	EXPECT_NONFATAL_FAILURE(
	276	EXPECT_SYSTEM_ERROR(throw_exception(), EDOM, "test"),
	277	"Expected: throw_exception() throws an exception of "
20effc67	278	"type std::system_error.\n Actual: it throws a different type.");
11fdf7f2 TL	279	EXPECT_NONFATAL_FAILURE(
11fdf7f2 TL	280	EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "test"),
20effc67	281	"Expected: do_nothing() throws an exception of type std::system_error.\n"
11fdf7f2 TL	282	" Actual: it throws nothing.");
	283	EXPECT_NONFATAL_FAILURE(
	284	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other"),
	285	fmt::format(
	286	"throw_system_error() throws an exception with a different message.\n"
	287	"Expected: {}\n"
	288	" Actual: {}",
20effc67 TL	289	system_error_message(EDOM, "other"),
20effc67 TL	290	system_error_message(EDOM, "test")));
11fdf7f2 TL	291	}
11fdf7f2 TL	292
20effc67	293	TEST(gtest_extra_test, expect_throw_msg_streaming) {
11fdf7f2 TL	294	EXPECT_THROW_MSG(throw_exception(), std::exception, "test")
	295	<< "unexpected failure";
	296	EXPECT_NONFATAL_FAILURE(
	297	EXPECT_THROW_MSG(throw_exception(), std::exception, "other")
9f95a23c TL	298	<< "expected failure",
9f95a23c TL	299	"expected failure");
11fdf7f2 TL	300	}
11fdf7f2 TL	301
20effc67	302	TEST(gtest_extra_test, expect_system_error_streaming) {
11fdf7f2 TL	303	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test")
	304	<< "unexpected failure";
	305	EXPECT_NONFATAL_FAILURE(
	306	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other")
9f95a23c TL	307	<< "expected failure",
9f95a23c TL	308	"expected failure");
11fdf7f2 TL	309	}
11fdf7f2 TL	310
f67539c2	311	#if FMT_USE_FCNTL
11fdf7f2 TL	312
11fdf7f2 TL	313	using fmt::buffered_file;
11fdf7f2 TL	314	using fmt::file;
11fdf7f2 TL	315
20effc67	316	TEST(output_redirect_test, scoped_redirect) {
11fdf7f2 TL	317	file read_end, write_end;
	318	file::pipe(read_end, write_end);
	319	{
	320	buffered_file file(write_end.fdopen("w"));
	321	std::fprintf(file.get(), "[[[");
	322	{
20effc67	323	output_redirect redir(file.get());
11fdf7f2 TL	324	std::fprintf(file.get(), "censored");
	325	}
	326	std::fprintf(file.get(), "]]]");
	327	}
	328	EXPECT_READ(read_end, "[[[]]]");
	329	}
	330
20effc67 TL	331	// Test that output_redirect handles errors in flush correctly.
20effc67 TL	332	TEST(output_redirect_test, flush_error_in_ctor) {
11fdf7f2 TL	333	file read_end, write_end;
	334	file::pipe(read_end, write_end);
	335	int write_fd = write_end.descriptor();
	336	file write_copy = write_end.dup(write_fd);
	337	buffered_file f = write_end.fdopen("w");
	338	// Put a character in a file buffer.
	339	EXPECT_EQ('x', fputc('x', f.get()));
	340	FMT_POSIX(close(write_fd));
20effc67 TL	341	std::unique_ptr<output_redirect> redir{nullptr};
20effc67 TL	342	EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new output_redirect(f.get())), EBADF,
9f95a23c	343	"cannot flush stream");
f67539c2	344	redir.reset(nullptr);
11fdf7f2 TL	345	write_copy.dup2(write_fd); // "undo" close or dtor will fail
	346	}
	347
20effc67	348	TEST(output_redirect_test, dup_error_in_ctor) {
11fdf7f2	349	buffered_file f = open_buffered_file();
1e59de90	350	int fd = (f.descriptor)();
11fdf7f2 TL	351	file copy = file::dup(fd);
11fdf7f2 TL	352	FMT_POSIX(close(fd));
20effc67	353	std::unique_ptr<output_redirect> redir{nullptr};
9f95a23c	354	EXPECT_SYSTEM_ERROR_NOASSERT(
20effc67	355	redir.reset(new output_redirect(f.get())), EBADF,
9f95a23c	356	fmt::format("cannot duplicate file descriptor {}", fd));
11fdf7f2 TL	357	copy.dup2(fd); // "undo" close or dtor will fail
	358	}
	359
20effc67	360	TEST(output_redirect_test, restore_and_read) {
11fdf7f2 TL	361	file read_end, write_end;
	362	file::pipe(read_end, write_end);
	363	buffered_file file(write_end.fdopen("w"));
	364	std::fprintf(file.get(), "[[[");
20effc67	365	output_redirect redir(file.get());
11fdf7f2	366	std::fprintf(file.get(), "censored");
20effc67 TL	367	EXPECT_EQ("censored", redir.restore_and_read());
20effc67 TL	368	EXPECT_EQ("", redir.restore_and_read());
11fdf7f2 TL	369	std::fprintf(file.get(), "]]]");
	370	file = buffered_file();
	371	EXPECT_READ(read_end, "[[[]]]");
	372	}
	373
	374	// Test that OutputRedirect handles errors in flush correctly.
20effc67	375	TEST(output_redirect_test, flush_error_in_restore_and_read) {
11fdf7f2 TL	376	file read_end, write_end;
	377	file::pipe(read_end, write_end);
	378	int write_fd = write_end.descriptor();
	379	file write_copy = write_end.dup(write_fd);
	380	buffered_file f = write_end.fdopen("w");
20effc67	381	output_redirect redir(f.get());
11fdf7f2 TL	382	// Put a character in a file buffer.
	383	EXPECT_EQ('x', fputc('x', f.get()));
	384	FMT_POSIX(close(write_fd));
9f95a23c TL	385	EXPECT_SYSTEM_ERROR_NOASSERT(redir.restore_and_read(), EBADF,
9f95a23c TL	386	"cannot flush stream");
11fdf7f2 TL	387	write_copy.dup2(write_fd); // "undo" close or dtor will fail
	388	}
	389
20effc67	390	TEST(output_redirect_test, error_in_dtor) {
11fdf7f2 TL	391	file read_end, write_end;
	392	file::pipe(read_end, write_end);
	393	int write_fd = write_end.descriptor();
	394	file write_copy = write_end.dup(write_fd);
	395	buffered_file f = write_end.fdopen("w");
20effc67	396	std::unique_ptr<output_redirect> redir(new output_redirect(f.get()));
11fdf7f2 TL	397	// Put a character in a file buffer.
11fdf7f2 TL	398	EXPECT_EQ('x', fputc('x', f.get()));
f67539c2 TL	399	EXPECT_WRITE(
	400	stderr,
	401	{
	402	// The close function must be called inside EXPECT_WRITE,
	403	// otherwise the system may recycle closed file descriptor when
	404	// redirecting the output in EXPECT_STDERR and the second close
	405	// will break output redirection.
	406	FMT_POSIX(close(write_fd));
	407	SUPPRESS_ASSERT(redir.reset(nullptr));
	408	},
20effc67	409	system_error_message(EBADF, "cannot flush stream"));
9f95a23c	410	write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail
11fdf7f2 TL	411	}
11fdf7f2 TL	412
20effc67	413	#endif // FMT_USE_FCNTL