[ceph.git] / ceph / src / seastar / 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 <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::buffered_file;
using fmt::error_code;
using fmt::file;

TEST(ErrorCodeTest, Ctor) {
  EXPECT_EQ(error_code().get(), 0);
  EXPECT_EQ(error_code(42).get(), 42);
}

TEST(OutputRedirectTest, ScopedRedirect) {
  file read_end, write_end;
  file::pipe(read_end, write_end);
  {
    buffered_file 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);
  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));
  scoped_ptr<OutputRedirect> redir{FMT_NULL};
  EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new OutputRedirect(f.get())),
      EBADF, "cannot flush stream");
  redir.reset(FMT_NULL);
  write_copy.dup2(write_fd);  // "undo" close or dtor will fail
}

TEST(OutputRedirectTest, DupErrorInCtor) {
  buffered_file f = open_buffered_file();
  int fd = (f.fileno)();
  file copy = file::dup(fd);
  FMT_POSIX(close(fd));
  scoped_ptr<OutputRedirect> redir{FMT_NULL};
  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);
  buffered_file 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 = buffered_file();
  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);
  buffered_file 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);
  buffered_file 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(FMT_NULL));
  }, format_system_error(EBADF, "cannot flush stream"));
  write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail
}

#endif  // FMT_USE_FILE_DESCRIPTORS

}  // namespace
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
	10	#include <cstring>
	11	#include <algorithm>
	12	#include <stdexcept>
	13	#include <gtest/gtest-spi.h>
	14
	15	#if defined(_WIN32) && !defined(__MINGW32__)
	16	# include <crtdbg.h> // for _CrtSetReportMode
	17	#endif // _WIN32
	18
	19	#include "util.h"
	20
	21	using testing::internal::scoped_ptr;
	22
	23	namespace {
	24
	25	// This is used to suppress coverity warnings about untrusted values.
	26	std::string sanitize(const std::string &s) {
	27	std::string result;
	28	for (std::string::const_iterator i = s.begin(), end = s.end(); i != end; ++i)
	29	result.push_back(static_cast<char>(*i & 0xff));
	30	return result;
	31	}
	32
	33	// Tests that assertion macros evaluate their arguments exactly once.
	34	class SingleEvaluationTest : public ::testing::Test {
	35	protected:
	36	SingleEvaluationTest() {
	37	p_ = s_;
	38	a_ = 0;
	39	b_ = 0;
	40	}
	41
	42	static const char* const s_;
	43	static const char* p_;
	44
	45	static int a_;
	46	static int b_;
	47	};
	48
	49	const char* const SingleEvaluationTest::s_ = "01234";
	50	const char* SingleEvaluationTest::p_;
	51	int SingleEvaluationTest::a_;
	52	int SingleEvaluationTest::b_;
	53
	54	void do_nothing() {}
	55
	56	void throw_exception() {
	57	throw std::runtime_error("test");
	58	}
	59
	60	void throw_system_error() {
	61	throw fmt::system_error(EDOM, "test");
	62	}
	63
	64	// Tests that when EXPECT_THROW_MSG fails, it evaluates its message argument
65	// exactly once.
66	TEST_F(SingleEvaluationTest, FailedEXPECT_THROW_MSG) {
67	EXPECT_NONFATAL_FAILURE(
68	EXPECT_THROW_MSG(throw_exception(), std::exception, p_++), "01234");
69	EXPECT_EQ(s_ + 1, p_);
70	}
71
72	// Tests that when EXPECT_SYSTEM_ERROR fails, it evaluates its message argument
73	// exactly once.
74	TEST_F(SingleEvaluationTest, FailedEXPECT_SYSTEM_ERROR) {
75	EXPECT_NONFATAL_FAILURE(
76	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, p_++), "01234");
77	EXPECT_EQ(s_ + 1, p_);
78	}
79
80	// Tests that when EXPECT_WRITE fails, it evaluates its message argument
81	// exactly once.
82	TEST_F(SingleEvaluationTest, FailedEXPECT_WRITE) {
83	EXPECT_NONFATAL_FAILURE(
84	EXPECT_WRITE(stdout, std::printf("test"), p_++), "01234");
85	EXPECT_EQ(s_ + 1, p_);
86	}
87
88	// Tests that assertion arguments are evaluated exactly once.
89	TEST_F(SingleEvaluationTest, ExceptionTests) {
90	// successful EXPECT_THROW_MSG
91	EXPECT_THROW_MSG({ // NOLINT
92	a_++;
93	throw_exception();
94	}, std::exception, (b_++, "test"));
95	EXPECT_EQ(1, a_);
96	EXPECT_EQ(1, b_);
97
98	// failed EXPECT_THROW_MSG, throws different type
99	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG({ // NOLINT
100	a_++;
101	throw_exception();
102	}, std::logic_error, (b_++, "test")), "throws a different type");
103	EXPECT_EQ(2, a_);
104	EXPECT_EQ(2, b_);
105
106	// failed EXPECT_THROW_MSG, throws an exception with different message
107	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG({ // NOLINT
108	a_++;
109	throw_exception();
110	}, std::exception, (b_++, "other")),
111	"throws an exception with a different message");
112	EXPECT_EQ(3, a_);
113	EXPECT_EQ(3, b_);
114
115	// failed EXPECT_THROW_MSG, throws nothing
116	EXPECT_NONFATAL_FAILURE(
117	EXPECT_THROW_MSG(a_++, std::exception, (b_++, "test")), "throws nothing");
118	EXPECT_EQ(4, a_);
119	EXPECT_EQ(4, b_);
120	}
121
122	TEST_F(SingleEvaluationTest, SystemErrorTests) {
123	// successful EXPECT_SYSTEM_ERROR
124	EXPECT_SYSTEM_ERROR({ // NOLINT
125	a_++;
126	throw_system_error();
127	}, EDOM, (b_++, "test"));
128	EXPECT_EQ(1, a_);
129	EXPECT_EQ(1, b_);
130
131	// failed EXPECT_SYSTEM_ERROR, throws different type
132	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR({ // NOLINT
133	a_++;
134	throw_exception();
135	}, EDOM, (b_++, "test")), "throws a different type");
136	EXPECT_EQ(2, a_);
137	EXPECT_EQ(2, b_);
138
139	// failed EXPECT_SYSTEM_ERROR, throws an exception with different message
140	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR({ // NOLINT
141	a_++;
142	throw_system_error();
143	}, EDOM, (b_++, "other")),
144	"throws an exception with a different message");
145	EXPECT_EQ(3, a_);
146	EXPECT_EQ(3, b_);
147
148	// failed EXPECT_SYSTEM_ERROR, throws nothing
149	EXPECT_NONFATAL_FAILURE(
150	EXPECT_SYSTEM_ERROR(a_++, EDOM, (b_++, "test")), "throws nothing");
151	EXPECT_EQ(4, a_);
152	EXPECT_EQ(4, b_);
153	}
154
155	// Tests that assertion arguments are evaluated exactly once.
156	TEST_F(SingleEvaluationTest, WriteTests) {
157	// successful EXPECT_WRITE
158	EXPECT_WRITE(stdout, { // NOLINT
159	a_++;
160	std::printf("test");
161	}, (b_++, "test"));
162	EXPECT_EQ(1, a_);
163	EXPECT_EQ(1, b_);
164
165	// failed EXPECT_WRITE
166	EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, { // NOLINT
167	a_++;
168	std::printf("test");
169	}, (b_++, "other")), "Actual: test");
170	EXPECT_EQ(2, a_);
171	EXPECT_EQ(2, b_);
172	}
173
174	// Tests that the compiler will not complain about unreachable code in the
175	// EXPECT_THROW_MSG macro.
176	TEST(ExpectThrowTest, DoesNotGenerateUnreachableCodeWarning) {
177	int n = 0;
178	using std::runtime_error;
179	EXPECT_THROW_MSG(throw runtime_error(""), runtime_error, "");
180	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(n++, runtime_error, ""), "");
181	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(throw 1, runtime_error, ""), "");
182	EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(
183	throw runtime_error("a"), runtime_error, "b"), "");
184	}
185
186	// Tests that the compiler will not complain about unreachable code in the
187	// EXPECT_SYSTEM_ERROR macro.
188	TEST(ExpectSystemErrorTest, DoesNotGenerateUnreachableCodeWarning) {
189	int n = 0;
190	EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "test"), EDOM, "test");
191	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(n++, EDOM, ""), "");
192	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw 1, EDOM, ""), "");
193	EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(
194	throw fmt::system_error(EDOM, "aaa"), EDOM, "bbb"), "");
195	}
196
197	TEST(AssertionSyntaxTest, ExceptionAssertionBehavesLikeSingleStatement) {
198	if (::testing::internal::AlwaysFalse())
199	EXPECT_THROW_MSG(do_nothing(), std::exception, "");
200
201	if (::testing::internal::AlwaysTrue())
202	EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
203	else
204	do_nothing();
205	}
206
207	TEST(AssertionSyntaxTest, SystemErrorAssertionBehavesLikeSingleStatement) {
208	if (::testing::internal::AlwaysFalse())
209	EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "");
210
211	if (::testing::internal::AlwaysTrue())
212	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
213	else
214	do_nothing();
215	}
216
217	TEST(AssertionSyntaxTest, WriteAssertionBehavesLikeSingleStatement) {
218	if (::testing::internal::AlwaysFalse())
219	EXPECT_WRITE(stdout, std::printf("x"), "x");
220
221	if (::testing::internal::AlwaysTrue())
222	EXPECT_WRITE(stdout, std::printf("x"), "x");
223	else
224	do_nothing();
225	}
226
227	// Tests EXPECT_THROW_MSG.
228	TEST(ExpectTest, EXPECT_THROW_MSG) {
229	EXPECT_THROW_MSG(throw_exception(), std::exception, "test");
230	EXPECT_NONFATAL_FAILURE(
231	EXPECT_THROW_MSG(throw_exception(), std::logic_error, "test"),
232	"Expected: throw_exception() throws an exception of "
233	"type std::logic_error.\n Actual: it throws a different type.");
234	EXPECT_NONFATAL_FAILURE(
235	EXPECT_THROW_MSG(do_nothing(), std::exception, "test"),
236	"Expected: do_nothing() throws an exception of type std::exception.\n"
237	" Actual: it throws nothing.");
238	EXPECT_NONFATAL_FAILURE(
239	EXPECT_THROW_MSG(throw_exception(), std::exception, "other"),
240	"throw_exception() throws an exception with a different message.\n"
241	"Expected: other\n"
242	" Actual: test");
243	}
244
245	// Tests EXPECT_SYSTEM_ERROR.
246	TEST(ExpectTest, EXPECT_SYSTEM_ERROR) {
247	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test");
248	EXPECT_NONFATAL_FAILURE(
249	EXPECT_SYSTEM_ERROR(throw_exception(), EDOM, "test"),
250	"Expected: throw_exception() throws an exception of "
251	"type fmt::system_error.\n Actual: it throws a different type.");
252	EXPECT_NONFATAL_FAILURE(
253	EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "test"),
254	"Expected: do_nothing() throws an exception of type fmt::system_error.\n"
255	" Actual: it throws nothing.");
256	EXPECT_NONFATAL_FAILURE(
257	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other"),
258	fmt::format(
259	"throw_system_error() throws an exception with a different message.\n"
260	"Expected: {}\n"
261	" Actual: {}",
262	format_system_error(EDOM, "other"),
263	format_system_error(EDOM, "test")));
264	}
265
266	// Tests EXPECT_WRITE.
267	TEST(ExpectTest, EXPECT_WRITE) {
268	EXPECT_WRITE(stdout, do_nothing(), "");
269	EXPECT_WRITE(stdout, std::printf("test"), "test");
270	EXPECT_WRITE(stderr, std::fprintf(stderr, "test"), "test");
271	EXPECT_NONFATAL_FAILURE(
272	EXPECT_WRITE(stdout, std::printf("that"), "this"),
273	"Expected: this\n"
274	" Actual: that");
275	}
276
277	TEST(StreamingAssertionsTest, EXPECT_THROW_MSG) {
278	EXPECT_THROW_MSG(throw_exception(), std::exception, "test")
279	<< "unexpected failure";
280	EXPECT_NONFATAL_FAILURE(
281	EXPECT_THROW_MSG(throw_exception(), std::exception, "other")
282	<< "expected failure", "expected failure");
283	}
284
285	TEST(StreamingAssertionsTest, EXPECT_SYSTEM_ERROR) {
286	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test")
287	<< "unexpected failure";
288	EXPECT_NONFATAL_FAILURE(
289	EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other")
290	<< "expected failure", "expected failure");
291	}
292
293	TEST(StreamingAssertionsTest, EXPECT_WRITE) {
294	EXPECT_WRITE(stdout, std::printf("test"), "test")
295	<< "unexpected failure";
296	EXPECT_NONFATAL_FAILURE(
297	EXPECT_WRITE(stdout, std::printf("test"), "other")
298	<< "expected failure", "expected failure");
299	}
300
301	TEST(UtilTest, FormatSystemError) {
302	fmt::memory_buffer out;
303	fmt::format_system_error(out, EDOM, "test message");
304	EXPECT_EQ(to_string(out), format_system_error(EDOM, "test message"));
305	}
306
307	#if FMT_USE_FILE_DESCRIPTORS
308
309	using fmt::buffered_file;
310	using fmt::error_code;
311	using fmt::file;
312
313	TEST(ErrorCodeTest, Ctor) {
eafe8130 TL	314	EXPECT_EQ(error_code().get(), 0);
eafe8130 TL	315	EXPECT_EQ(error_code(42).get(), 42);
11fdf7f2 TL	316	}
	317
	318	TEST(OutputRedirectTest, ScopedRedirect) {
	319	file read_end, write_end;
	320	file::pipe(read_end, write_end);
	321	{
	322	buffered_file file(write_end.fdopen("w"));
	323	std::fprintf(file.get(), "[[[");
	324	{
	325	OutputRedirect redir(file.get());
	326	std::fprintf(file.get(), "censored");
	327	}
	328	std::fprintf(file.get(), "]]]");
	329	}
	330	EXPECT_READ(read_end, "[[[]]]");
	331	}
	332
	333	// Test that OutputRedirect handles errors in flush correctly.
	334	TEST(OutputRedirectTest, FlushErrorInCtor) {
	335	file read_end, write_end;
	336	file::pipe(read_end, write_end);
	337	int write_fd = write_end.descriptor();
	338	file write_copy = write_end.dup(write_fd);
	339	buffered_file f = write_end.fdopen("w");
	340	// Put a character in a file buffer.
	341	EXPECT_EQ('x', fputc('x', f.get()));
	342	FMT_POSIX(close(write_fd));
eafe8130	343	scoped_ptr<OutputRedirect> redir{FMT_NULL};
11fdf7f2 TL	344	EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new OutputRedirect(f.get())),
11fdf7f2 TL	345	EBADF, "cannot flush stream");
eafe8130	346	redir.reset(FMT_NULL);
11fdf7f2 TL	347	write_copy.dup2(write_fd); // "undo" close or dtor will fail
	348	}
	349
	350	TEST(OutputRedirectTest, DupErrorInCtor) {
	351	buffered_file f = open_buffered_file();
	352	int fd = (f.fileno)();
	353	file copy = file::dup(fd);
	354	FMT_POSIX(close(fd));
eafe8130	355	scoped_ptr<OutputRedirect> redir{FMT_NULL};
11fdf7f2 TL	356	EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new OutputRedirect(f.get())),
	357	EBADF, fmt::format("cannot duplicate file descriptor {}", fd));
	358	copy.dup2(fd); // "undo" close or dtor will fail
	359	}
	360
	361	TEST(OutputRedirectTest, RestoreAndRead) {
	362	file read_end, write_end;
	363	file::pipe(read_end, write_end);
	364	buffered_file file(write_end.fdopen("w"));
	365	std::fprintf(file.get(), "[[[");
	366	OutputRedirect redir(file.get());
	367	std::fprintf(file.get(), "censored");
	368	EXPECT_EQ("censored", sanitize(redir.restore_and_read()));
	369	EXPECT_EQ("", sanitize(redir.restore_and_read()));
	370	std::fprintf(file.get(), "]]]");
	371	file = buffered_file();
	372	EXPECT_READ(read_end, "[[[]]]");
	373	}
	374
	375	// Test that OutputRedirect handles errors in flush correctly.
	376	TEST(OutputRedirectTest, FlushErrorInRestoreAndRead) {
	377	file read_end, write_end;
	378	file::pipe(read_end, write_end);
	379	int write_fd = write_end.descriptor();
	380	file write_copy = write_end.dup(write_fd);
	381	buffered_file f = write_end.fdopen("w");
	382	OutputRedirect redir(f.get());
	383	// Put a character in a file buffer.
	384	EXPECT_EQ('x', fputc('x', f.get()));
	385	FMT_POSIX(close(write_fd));
	386	EXPECT_SYSTEM_ERROR_NOASSERT(redir.restore_and_read(),
	387	EBADF, "cannot flush stream");
	388	write_copy.dup2(write_fd); // "undo" close or dtor will fail
	389	}
	390
	391	TEST(OutputRedirectTest, ErrorInDtor) {
	392	file read_end, write_end;
	393	file::pipe(read_end, write_end);
	394	int write_fd = write_end.descriptor();
	395	file write_copy = write_end.dup(write_fd);
	396	buffered_file f = write_end.fdopen("w");
	397	scoped_ptr<OutputRedirect> redir(new OutputRedirect(f.get()));
	398	// Put a character in a file buffer.
	399	EXPECT_EQ('x', fputc('x', f.get()));
	400	EXPECT_WRITE(stderr, {
	401	// The close function must be called inside EXPECT_WRITE, otherwise
	402	// the system may recycle closed file descriptor when redirecting the
	403	// output in EXPECT_STDERR and the second close will break output
	404	// redirection.
	405	FMT_POSIX(close(write_fd));
eafe8130	406	SUPPRESS_ASSERT(redir.reset(FMT_NULL));
11fdf7f2 TL	407	}, format_system_error(EBADF, "cannot flush stream"));
	408	write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail
	409	}
	410
	411	#endif // FMT_USE_FILE_DESCRIPTORS
	412
	413	} // namespace