// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * 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.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// 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.
//
// The purpose of this file is to generate Google Test output under
// various conditions.  The output will then be verified by
// googletest-output-test.py to ensure that Google Test generates the
// desired messages.  Therefore, most tests in this file are MEANT TO
// FAIL.

#include "gtest/gtest-spi.h"
#include "gtest/gtest.h"
#include "src/gtest-internal-inl.h"

#include <stdlib.h>

#if _MSC_VER
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127 /* conditional expression is constant */)
#endif //  _MSC_VER

#if GTEST_IS_THREADSAFE
using testing::ScopedFakeTestPartResultReporter;
using testing::TestPartResultArray;

using testing::internal::Notification;
using testing::internal::ThreadWithParam;
#endif

namespace posix = ::testing::internal::posix;

// Tests catching fatal failures.

// A subroutine used by the following test.
void TestEq1(int x)
{
    ASSERT_EQ(1, x);
}

// This function calls a test subroutine, catches the fatal failure it
// generates, and then returns early.
void TryTestSubroutine()
{
    // Calls a subrountine that yields a fatal failure.
    TestEq1(2);

    // Catches the fatal failure and aborts the test.
    //
    // The testing::Test:: prefix is necessary when calling
    // HasFatalFailure() outside of a TEST, TEST_F, or test fixture.
    if (testing::Test::HasFatalFailure())
        return;

    // If we get here, something is wrong.
    FAIL() << "This should never be reached.";
}

TEST(PassingTest, PassingTest1)
{
}

TEST(PassingTest, PassingTest2)
{
}

// Tests that parameters of failing parameterized tests are printed in the
// failing test summary.
class FailingParamTest : public testing::TestWithParam<int>
{
};

TEST_P(FailingParamTest, Fails)
{
    EXPECT_EQ(1, GetParam());
}

// This generates a test which will fail. Google Test is expected to print
// its parameter when it outputs the list of all failed tests.
INSTANTIATE_TEST_SUITE_P(PrintingFailingParams,
                         FailingParamTest,
                         testing::Values(2));

// Tests that an empty value for the test suite basename yields just
// the test name without any prior /
class EmptyBasenameParamInst : public testing::TestWithParam<int>
{
};

TEST_P(EmptyBasenameParamInst, Passes)
{
    EXPECT_EQ(1, GetParam());
}

INSTANTIATE_TEST_SUITE_P(, EmptyBasenameParamInst, testing::Values(1));

static const char kGoldenString[] = "\"Line\0 1\"\nLine 2";

TEST(NonfatalFailureTest, EscapesStringOperands)
{
    std::string actual = "actual \"string\"";
    EXPECT_EQ(kGoldenString, actual);

    const char *golden = kGoldenString;
    EXPECT_EQ(golden, actual);
}

TEST(NonfatalFailureTest, DiffForLongStrings)
{
    std::string golden_str(kGoldenString, sizeof(kGoldenString) - 1);
    EXPECT_EQ(golden_str, "Line 2");
}

// Tests catching a fatal failure in a subroutine.
TEST(FatalFailureTest, FatalFailureInSubroutine)
{
    printf("(expecting a failure that x should be 1)\n");

    TryTestSubroutine();
}

// Tests catching a fatal failure in a nested subroutine.
TEST(FatalFailureTest, FatalFailureInNestedSubroutine)
{
    printf("(expecting a failure that x should be 1)\n");

    // Calls a subrountine that yields a fatal failure.
    TryTestSubroutine();

    // Catches the fatal failure and aborts the test.
    //
    // When calling HasFatalFailure() inside a TEST, TEST_F, or test
    // fixture, the testing::Test:: prefix is not needed.
    if (HasFatalFailure())
        return;

    // If we get here, something is wrong.
    FAIL() << "This should never be reached.";
}

// Tests HasFatalFailure() after a failed EXPECT check.
TEST(FatalFailureTest, NonfatalFailureInSubroutine)
{
    printf("(expecting a failure on false)\n");
    EXPECT_TRUE(false); // Generates a nonfatal failure
    ASSERT_FALSE(HasFatalFailure()); // This should succeed.
}

// Tests interleaving user logging and Google Test assertions.
TEST(LoggingTest, InterleavingLoggingAndAssertions)
{
    static const int a[4] = {
        3, 9, 2, 6};

    printf("(expecting 2 failures on (3) >= (a[i]))\n");
    for (int i = 0; i < static_cast<int>(sizeof(a) / sizeof(*a)); i++) {
        printf("i == %d\n", i);
        EXPECT_GE(3, a[i]);
    }
}

// Tests the SCOPED_TRACE macro.

// A helper function for testing SCOPED_TRACE.
void SubWithoutTrace(int n)
{
    EXPECT_EQ(1, n);
    ASSERT_EQ(2, n);
}

// Another helper function for testing SCOPED_TRACE.
void SubWithTrace(int n)
{
    SCOPED_TRACE(testing::Message() << "n = " << n);

    SubWithoutTrace(n);
}

TEST(SCOPED_TRACETest, AcceptedValues)
{
    SCOPED_TRACE("literal string");
    SCOPED_TRACE(std::string("std::string"));
    SCOPED_TRACE(1337); // streamable type
    const char *null_value = nullptr;
    SCOPED_TRACE(null_value);

    ADD_FAILURE() << "Just checking that all these values work fine.";
}

// Tests that SCOPED_TRACE() obeys lexical scopes.
TEST(SCOPED_TRACETest, ObeysScopes)
{
    printf("(expected to fail)\n");

    // There should be no trace before SCOPED_TRACE() is invoked.
    ADD_FAILURE() << "This failure is expected, and shouldn't have a trace.";

    {
        SCOPED_TRACE("Expected trace");
        // After SCOPED_TRACE(), a failure in the current scope should contain
        // the trace.
        ADD_FAILURE() << "This failure is expected, and should have a trace.";
    }

    // Once the control leaves the scope of the SCOPED_TRACE(), there
    // should be no trace again.
    ADD_FAILURE() << "This failure is expected, and shouldn't have a trace.";
}

// Tests that SCOPED_TRACE works inside a loop.
TEST(SCOPED_TRACETest, WorksInLoop)
{
    printf("(expected to fail)\n");

    for (int i = 1; i <= 2; i++) {
        SCOPED_TRACE(testing::Message() << "i = " << i);

        SubWithoutTrace(i);
    }
}

// Tests that SCOPED_TRACE works in a subroutine.
TEST(SCOPED_TRACETest, WorksInSubroutine)
{
    printf("(expected to fail)\n");

    SubWithTrace(1);
    SubWithTrace(2);
}

// Tests that SCOPED_TRACE can be nested.
TEST(SCOPED_TRACETest, CanBeNested)
{
    printf("(expected to fail)\n");

    SCOPED_TRACE(""); // A trace without a message.

    SubWithTrace(2);
}

// Tests that multiple SCOPED_TRACEs can be used in the same scope.
TEST(SCOPED_TRACETest, CanBeRepeated)
{
    printf("(expected to fail)\n");

    SCOPED_TRACE("A");
    ADD_FAILURE()
        << "This failure is expected, and should contain trace point A.";

    SCOPED_TRACE("B");
    ADD_FAILURE()
        << "This failure is expected, and should contain trace point A and B.";

    {
        SCOPED_TRACE("C");
        ADD_FAILURE() << "This failure is expected, and should "
                      << "contain trace point A, B, and C.";
    }

    SCOPED_TRACE("D");
    ADD_FAILURE() << "This failure is expected, and should "
                  << "contain trace point A, B, and D.";
}

#if GTEST_IS_THREADSAFE
// Tests that SCOPED_TRACE()s can be used concurrently from multiple
// threads.  Namely, an assertion should be affected by
// SCOPED_TRACE()s in its own thread only.

// Here's the sequence of actions that happen in the test:
//
//   Thread A (main)                | Thread B (spawned)
//   ===============================|================================
//   spawns thread B                |
//   -------------------------------+--------------------------------
//   waits for n1                   | SCOPED_TRACE("Trace B");
//                                  | generates failure #1
//                                  | notifies n1
//   -------------------------------+--------------------------------
//   SCOPED_TRACE("Trace A");       | waits for n2
//   generates failure #2           |
//   notifies n2                    |
//   -------------------------------|--------------------------------
//   waits for n3                   | generates failure #3
//                                  | trace B dies
//                                  | generates failure #4
//                                  | notifies n3
//   -------------------------------|--------------------------------
//   generates failure #5           | finishes
//   trace A dies                   |
//   generates failure #6           |
//   -------------------------------|--------------------------------
//   waits for thread B to finish   |

struct CheckPoints {
    Notification n1;
    Notification n2;
    Notification n3;
};

static void ThreadWithScopedTrace(CheckPoints *check_points)
{
    {
        SCOPED_TRACE("Trace B");
        ADD_FAILURE()
            << "Expected failure #1 (in thread B, only trace B alive).";
        check_points->n1.Notify();
        check_points->n2.WaitForNotification();

        ADD_FAILURE()
            << "Expected failure #3 (in thread B, trace A & B both alive).";
    } // Trace B dies here.
    ADD_FAILURE()
        << "Expected failure #4 (in thread B, only trace A alive).";
    check_points->n3.Notify();
}

TEST(SCOPED_TRACETest, WorksConcurrently)
{
    printf("(expecting 6 failures)\n");

    CheckPoints check_points;
    ThreadWithParam<CheckPoints *> thread(&ThreadWithScopedTrace, &check_points,
                                          nullptr);
    check_points.n1.WaitForNotification();

    {
        SCOPED_TRACE("Trace A");
        ADD_FAILURE()
            << "Expected failure #2 (in thread A, trace A & B both alive).";
        check_points.n2.Notify();
        check_points.n3.WaitForNotification();

        ADD_FAILURE()
            << "Expected failure #5 (in thread A, only trace A alive).";
    } // Trace A dies here.
    ADD_FAILURE()
        << "Expected failure #6 (in thread A, no trace alive).";
    thread.Join();
}
#endif // GTEST_IS_THREADSAFE

// Tests basic functionality of the ScopedTrace utility (most of its features
// are already tested in SCOPED_TRACETest).
TEST(ScopedTraceTest, WithExplicitFileAndLine)
{
    testing::ScopedTrace trace("explicit_file.cc", 123, "expected trace message");
    ADD_FAILURE() << "Check that the trace is attached to a particular location.";
}

TEST(DisabledTestsWarningTest,
     DISABLED_AlsoRunDisabledTestsFlagSuppressesWarning)
{
    // This test body is intentionally empty.  Its sole purpose is for
    // verifying that the --gtest_also_run_disabled_tests flag
    // suppresses the "YOU HAVE 12 DISABLED TESTS" warning at the end of
    // the test output.
}

// Tests using assertions outside of TEST and TEST_F.
//
// This function creates two failures intentionally.
void AdHocTest()
{
    printf("The non-test part of the code is expected to have 2 failures.\n\n");
    EXPECT_TRUE(false);
    EXPECT_EQ(2, 3);
}

// Runs all TESTs, all TEST_Fs, and the ad hoc test.
int RunAllTests()
{
    AdHocTest();
    return RUN_ALL_TESTS();
}

// Tests non-fatal failures in the fixture constructor.
class NonFatalFailureInFixtureConstructorTest : public testing::Test
{
protected:
    NonFatalFailureInFixtureConstructorTest()
    {
        printf("(expecting 5 failures)\n");
        ADD_FAILURE() << "Expected failure #1, in the test fixture c'tor.";
    }

    ~NonFatalFailureInFixtureConstructorTest() override
    {
        ADD_FAILURE() << "Expected failure #5, in the test fixture d'tor.";
    }

    void SetUp() override { ADD_FAILURE() << "Expected failure #2, in SetUp()."; }

    void TearDown() override
    {
        ADD_FAILURE() << "Expected failure #4, in TearDown.";
    }
};

TEST_F(NonFatalFailureInFixtureConstructorTest, FailureInConstructor)
{
    ADD_FAILURE() << "Expected failure #3, in the test body.";
}

// Tests fatal failures in the fixture constructor.
class FatalFailureInFixtureConstructorTest : public testing::Test
{
protected:
    FatalFailureInFixtureConstructorTest()
    {
        printf("(expecting 2 failures)\n");
        Init();
    }

    ~FatalFailureInFixtureConstructorTest() override
    {
        ADD_FAILURE() << "Expected failure #2, in the test fixture d'tor.";
    }

    void SetUp() override
    {
        ADD_FAILURE() << "UNEXPECTED failure in SetUp().  "
                      << "We should never get here, as the test fixture c'tor "
                      << "had a fatal failure.";
    }

    void TearDown() override
    {
        ADD_FAILURE() << "UNEXPECTED failure in TearDown().  "
                      << "We should never get here, as the test fixture c'tor "
                      << "had a fatal failure.";
    }

private:
    void Init()
    {
        FAIL() << "Expected failure #1, in the test fixture c'tor.";
    }
};

TEST_F(FatalFailureInFixtureConstructorTest, FailureInConstructor)
{
    ADD_FAILURE() << "UNEXPECTED failure in the test body.  "
                  << "We should never get here, as the test fixture c'tor "
                  << "had a fatal failure.";
}

// Tests non-fatal failures in SetUp().
class NonFatalFailureInSetUpTest : public testing::Test
{
protected:
    ~NonFatalFailureInSetUpTest() override { Deinit(); }

    void SetUp() override
    {
        printf("(expecting 4 failures)\n");
        ADD_FAILURE() << "Expected failure #1, in SetUp().";
    }

    void TearDown() override { FAIL() << "Expected failure #3, in TearDown()."; }

private:
    void Deinit()
    {
        FAIL() << "Expected failure #4, in the test fixture d'tor.";
    }
};

TEST_F(NonFatalFailureInSetUpTest, FailureInSetUp)
{
    FAIL() << "Expected failure #2, in the test function.";
}

// Tests fatal failures in SetUp().
class FatalFailureInSetUpTest : public testing::Test
{
protected:
    ~FatalFailureInSetUpTest() override { Deinit(); }

    void SetUp() override
    {
        printf("(expecting 3 failures)\n");
        FAIL() << "Expected failure #1, in SetUp().";
    }

    void TearDown() override { FAIL() << "Expected failure #2, in TearDown()."; }

private:
    void Deinit()
    {
        FAIL() << "Expected failure #3, in the test fixture d'tor.";
    }
};

TEST_F(FatalFailureInSetUpTest, FailureInSetUp)
{
    FAIL() << "UNEXPECTED failure in the test function.  "
           << "We should never get here, as SetUp() failed.";
}

TEST(AddFailureAtTest, MessageContainsSpecifiedFileAndLineNumber)
{
    ADD_FAILURE_AT("foo.cc", 42) << "Expected nonfatal failure in foo.cc";
}

TEST(GtestFailAtTest, MessageContainsSpecifiedFileAndLineNumber)
{
    GTEST_FAIL_AT("foo.cc", 42) << "Expected fatal failure in foo.cc";
}

// The MixedUpTestSuiteTest test case verifies that Google Test will fail a
// test if it uses a different fixture class than what other tests in
// the same test case use.  It deliberately contains two fixture
// classes with the same name but defined in different namespaces.

// The MixedUpTestSuiteWithSameTestNameTest test case verifies that
// when the user defines two tests with the same test case name AND
// same test name (but in different namespaces), the second test will
// fail.

namespace foo {

class MixedUpTestSuiteTest : public testing::Test
{
};

TEST_F(MixedUpTestSuiteTest, FirstTestFromNamespaceFoo)
{
}
TEST_F(MixedUpTestSuiteTest, SecondTestFromNamespaceFoo)
{
}

class MixedUpTestSuiteWithSameTestNameTest : public testing::Test
{
};

TEST_F(MixedUpTestSuiteWithSameTestNameTest,
       TheSecondTestWithThisNameShouldFail)
{
}

} // namespace foo

namespace bar {

class MixedUpTestSuiteTest : public testing::Test
{
};

// The following two tests are expected to fail.  We rely on the
// golden file to check that Google Test generates the right error message.
TEST_F(MixedUpTestSuiteTest, ThisShouldFail)
{
}
TEST_F(MixedUpTestSuiteTest, ThisShouldFailToo)
{
}

class MixedUpTestSuiteWithSameTestNameTest : public testing::Test
{
};

// Expected to fail.  We rely on the golden file to check that Google Test
// generates the right error message.
TEST_F(MixedUpTestSuiteWithSameTestNameTest,
       TheSecondTestWithThisNameShouldFail)
{
}

} // namespace bar

// The following two test cases verify that Google Test catches the user
// error of mixing TEST and TEST_F in the same test case.  The first
// test case checks the scenario where TEST_F appears before TEST, and
// the second one checks where TEST appears before TEST_F.

class TEST_F_before_TEST_in_same_test_case : public testing::Test
{
};

TEST_F(TEST_F_before_TEST_in_same_test_case, DefinedUsingTEST_F)
{
}

// Expected to fail.  We rely on the golden file to check that Google Test
// generates the right error message.
TEST(TEST_F_before_TEST_in_same_test_case, DefinedUsingTESTAndShouldFail)
{
}

class TEST_before_TEST_F_in_same_test_case : public testing::Test
{
};

TEST(TEST_before_TEST_F_in_same_test_case, DefinedUsingTEST)
{
}

// Expected to fail.  We rely on the golden file to check that Google Test
// generates the right error message.
TEST_F(TEST_before_TEST_F_in_same_test_case, DefinedUsingTEST_FAndShouldFail)
{
}

// Used for testing EXPECT_NONFATAL_FAILURE() and EXPECT_FATAL_FAILURE().
int global_integer = 0;

// Tests that EXPECT_NONFATAL_FAILURE() can reference global variables.
TEST(ExpectNonfatalFailureTest, CanReferenceGlobalVariables)
{
    global_integer = 0;
    EXPECT_NONFATAL_FAILURE({
        EXPECT_EQ(1, global_integer) << "Expected non-fatal failure.";
    },
                            "Expected non-fatal failure.");
}

// Tests that EXPECT_NONFATAL_FAILURE() can reference local variables
// (static or not).
TEST(ExpectNonfatalFailureTest, CanReferenceLocalVariables)
{
    int m = 0;
    static int n;
    n = 1;
    EXPECT_NONFATAL_FAILURE({
        EXPECT_EQ(m, n) << "Expected non-fatal failure.";
    },
                            "Expected non-fatal failure.");
}

// Tests that EXPECT_NONFATAL_FAILURE() succeeds when there is exactly
// one non-fatal failure and no fatal failure.
TEST(ExpectNonfatalFailureTest, SucceedsWhenThereIsOneNonfatalFailure)
{
    EXPECT_NONFATAL_FAILURE({
        ADD_FAILURE() << "Expected non-fatal failure.";
    },
                            "Expected non-fatal failure.");
}

// Tests that EXPECT_NONFATAL_FAILURE() fails when there is no
// non-fatal failure.
TEST(ExpectNonfatalFailureTest, FailsWhenThereIsNoNonfatalFailure)
{
    printf("(expecting a failure)\n");
    EXPECT_NONFATAL_FAILURE({}, "");
}

// Tests that EXPECT_NONFATAL_FAILURE() fails when there are two
// non-fatal failures.
TEST(ExpectNonfatalFailureTest, FailsWhenThereAreTwoNonfatalFailures)
{
    printf("(expecting a failure)\n");
    EXPECT_NONFATAL_FAILURE({
        ADD_FAILURE() << "Expected non-fatal failure 1.";
        ADD_FAILURE() << "Expected non-fatal failure 2.";
    },
                            "");
}

// Tests that EXPECT_NONFATAL_FAILURE() fails when there is one fatal
// failure.
TEST(ExpectNonfatalFailureTest, FailsWhenThereIsOneFatalFailure)
{
    printf("(expecting a failure)\n");
    EXPECT_NONFATAL_FAILURE({
        FAIL() << "Expected fatal failure.";
    },
                            "");
}

// Tests that EXPECT_NONFATAL_FAILURE() fails when the statement being
// tested returns.
TEST(ExpectNonfatalFailureTest, FailsWhenStatementReturns)
{
    printf("(expecting a failure)\n");
    EXPECT_NONFATAL_FAILURE({
        return;
    },
                            "");
}

#if GTEST_HAS_EXCEPTIONS

// Tests that EXPECT_NONFATAL_FAILURE() fails when the statement being
// tested throws.
TEST(ExpectNonfatalFailureTest, FailsWhenStatementThrows)
{
    printf("(expecting a failure)\n");
    try {
        EXPECT_NONFATAL_FAILURE({
            throw 0;
        },
                                "");
    } catch (int) { // NOLINT
    }
}

#endif // GTEST_HAS_EXCEPTIONS

// Tests that EXPECT_FATAL_FAILURE() can reference global variables.
TEST(ExpectFatalFailureTest, CanReferenceGlobalVariables)
{
    global_integer = 0;
    EXPECT_FATAL_FAILURE({
        ASSERT_EQ(1, global_integer) << "Expected fatal failure.";
    },
                         "Expected fatal failure.");
}

// Tests that EXPECT_FATAL_FAILURE() can reference local static
// variables.
TEST(ExpectFatalFailureTest, CanReferenceLocalStaticVariables)
{
    static int n;
    n = 1;
    EXPECT_FATAL_FAILURE({
        ASSERT_EQ(0, n) << "Expected fatal failure.";
    },
                         "Expected fatal failure.");
}

// Tests that EXPECT_FATAL_FAILURE() succeeds when there is exactly
// one fatal failure and no non-fatal failure.
TEST(ExpectFatalFailureTest, SucceedsWhenThereIsOneFatalFailure)
{
    EXPECT_FATAL_FAILURE({
        FAIL() << "Expected fatal failure.";
    },
                         "Expected fatal failure.");
}

// Tests that EXPECT_FATAL_FAILURE() fails when there is no fatal
// failure.
TEST(ExpectFatalFailureTest, FailsWhenThereIsNoFatalFailure)
{
    printf("(expecting a failure)\n");
    EXPECT_FATAL_FAILURE({}, "");
}

// A helper for generating a fatal failure.
void FatalFailure()
{
    FAIL() << "Expected fatal failure.";
}

// Tests that EXPECT_FATAL_FAILURE() fails when there are two
// fatal failures.
TEST(ExpectFatalFailureTest, FailsWhenThereAreTwoFatalFailures)
{
    printf("(expecting a failure)\n");
    EXPECT_FATAL_FAILURE({
        FatalFailure();
        FatalFailure();
    },
                         "");
}

// Tests that EXPECT_FATAL_FAILURE() fails when there is one non-fatal
// failure.
TEST(ExpectFatalFailureTest, FailsWhenThereIsOneNonfatalFailure)
{
    printf("(expecting a failure)\n");
    EXPECT_FATAL_FAILURE({
        ADD_FAILURE() << "Expected non-fatal failure.";
    },
                         "");
}

// Tests that EXPECT_FATAL_FAILURE() fails when the statement being
// tested returns.
TEST(ExpectFatalFailureTest, FailsWhenStatementReturns)
{
    printf("(expecting a failure)\n");
    EXPECT_FATAL_FAILURE({
        return;
    },
                         "");
}

#if GTEST_HAS_EXCEPTIONS

// Tests that EXPECT_FATAL_FAILURE() fails when the statement being
// tested throws.
TEST(ExpectFatalFailureTest, FailsWhenStatementThrows)
{
    printf("(expecting a failure)\n");
    try {
        EXPECT_FATAL_FAILURE({
            throw 0;
        },
                             "");
    } catch (int) { // NOLINT
    }
}

#endif // GTEST_HAS_EXCEPTIONS

// This #ifdef block tests the output of value-parameterized tests.

std::string ParamNameFunc(const testing::TestParamInfo<std::string> &info)
{
    return info.param;
}

class ParamTest : public testing::TestWithParam<std::string>
{
};

TEST_P(ParamTest, Success)
{
    EXPECT_EQ("a", GetParam());
}

TEST_P(ParamTest, Failure)
{
    EXPECT_EQ("b", GetParam()) << "Expected failure";
}

INSTANTIATE_TEST_SUITE_P(PrintingStrings,
                         ParamTest,
                         testing::Values(std::string("a")),
                         ParamNameFunc);

// The case where a suite has INSTANTIATE_TEST_SUITE_P but not TEST_P.
using NoTests = ParamTest;
INSTANTIATE_TEST_SUITE_P(ThisIsOdd, NoTests, ::testing::Values("Hello"));

// fails under kErrorOnUninstantiatedParameterizedTest=true
class DetectNotInstantiatedTest : public testing::TestWithParam<int>
{
};
TEST_P(DetectNotInstantiatedTest, Used)
{
}

// This would make the test failure from the above go away.
// INSTANTIATE_TEST_SUITE_P(Fix, DetectNotInstantiatedTest, testing::Values(1));

// This #ifdef block tests the output of typed tests.
#if GTEST_HAS_TYPED_TEST

template<typename T>
class TypedTest : public testing::Test
{
};

TYPED_TEST_SUITE(TypedTest, testing::Types<int>);

TYPED_TEST(TypedTest, Success)
{
    EXPECT_EQ(0, TypeParam());
}

TYPED_TEST(TypedTest, Failure)
{
    EXPECT_EQ(1, TypeParam()) << "Expected failure";
}

typedef testing::Types<char, int> TypesForTestWithNames;

template<typename T>
class TypedTestWithNames : public testing::Test
{
};

class TypedTestNames
{
public:
    template<typename T>
    static std::string GetName(int i)
    {
        if (std::is_same<T, char>::value)
            return std::string("char") + ::testing::PrintToString(i);
        if (std::is_same<T, int>::value)
            return std::string("int") + ::testing::PrintToString(i);
    }
};

TYPED_TEST_SUITE(TypedTestWithNames, TypesForTestWithNames, TypedTestNames);

TYPED_TEST(TypedTestWithNames, Success)
{
}

TYPED_TEST(TypedTestWithNames, Failure)
{
    FAIL();
}

#endif // GTEST_HAS_TYPED_TEST

// This #ifdef block tests the output of type-parameterized tests.
#if GTEST_HAS_TYPED_TEST_P

template<typename T>
class TypedTestP : public testing::Test
{
};

TYPED_TEST_SUITE_P(TypedTestP);

TYPED_TEST_P(TypedTestP, Success)
{
    EXPECT_EQ(0U, TypeParam());
}

TYPED_TEST_P(TypedTestP, Failure)
{
    EXPECT_EQ(1U, TypeParam()) << "Expected failure";
}

REGISTER_TYPED_TEST_SUITE_P(TypedTestP, Success, Failure);

typedef testing::Types<unsigned char, unsigned int> UnsignedTypes;
INSTANTIATE_TYPED_TEST_SUITE_P(Unsigned, TypedTestP, UnsignedTypes);

class TypedTestPNames
{
public:
    template<typename T>
    static std::string GetName(int i)
    {
        if (std::is_same<T, unsigned char>::value) {
            return std::string("unsignedChar") + ::testing::PrintToString(i);
        }
        if (std::is_same<T, unsigned int>::value) {
            return std::string("unsignedInt") + ::testing::PrintToString(i);
        }
    }
};

INSTANTIATE_TYPED_TEST_SUITE_P(UnsignedCustomName, TypedTestP, UnsignedTypes,
                               TypedTestPNames);

template<typename T>
class DetectNotInstantiatedTypesTest : public testing::Test
{
};
TYPED_TEST_SUITE_P(DetectNotInstantiatedTypesTest);
TYPED_TEST_P(DetectNotInstantiatedTypesTest, Used)
{
    TypeParam instantiate;
    (void)instantiate;
}
REGISTER_TYPED_TEST_SUITE_P(DetectNotInstantiatedTypesTest, Used);

// kErrorOnUninstantiatedTypeParameterizedTest=true would make the above fail.
// Adding the following would make that test failure go away.
//
// typedef ::testing::Types<char, int, unsigned int> MyTypes;
// INSTANTIATE_TYPED_TEST_SUITE_P(All, DetectNotInstantiatedTypesTest, MyTypes);

#endif // GTEST_HAS_TYPED_TEST_P

#if GTEST_HAS_DEATH_TEST

// We rely on the golden file to verify that tests whose test case
// name ends with DeathTest are run first.

TEST(ADeathTest, ShouldRunFirst)
{
}

#if GTEST_HAS_TYPED_TEST

// We rely on the golden file to verify that typed tests whose test
// case name ends with DeathTest are run first.

template<typename T>
class ATypedDeathTest : public testing::Test
{
};

typedef testing::Types<int, double> NumericTypes;
TYPED_TEST_SUITE(ATypedDeathTest, NumericTypes);

TYPED_TEST(ATypedDeathTest, ShouldRunFirst)
{
}

#endif // GTEST_HAS_TYPED_TEST

#if GTEST_HAS_TYPED_TEST_P

// We rely on the golden file to verify that type-parameterized tests
// whose test case name ends with DeathTest are run first.

template<typename T>
class ATypeParamDeathTest : public testing::Test
{
};

TYPED_TEST_SUITE_P(ATypeParamDeathTest);

TYPED_TEST_P(ATypeParamDeathTest, ShouldRunFirst)
{
}

REGISTER_TYPED_TEST_SUITE_P(ATypeParamDeathTest, ShouldRunFirst);

INSTANTIATE_TYPED_TEST_SUITE_P(My, ATypeParamDeathTest, NumericTypes);

#endif // GTEST_HAS_TYPED_TEST_P

#endif // GTEST_HAS_DEATH_TEST

// Tests various failure conditions of
// EXPECT_{,NON}FATAL_FAILURE{,_ON_ALL_THREADS}.
class ExpectFailureTest : public testing::Test
{
public: // Must be public and not protected due to a bug in g++ 3.4.2.
    enum FailureMode {
        FATAL_FAILURE,
        NONFATAL_FAILURE
    };
    static void AddFailure(FailureMode failure)
    {
        if (failure == FATAL_FAILURE) {
            FAIL() << "Expected fatal failure.";
        } else {
            ADD_FAILURE() << "Expected non-fatal failure.";
        }
    }
};

TEST_F(ExpectFailureTest, ExpectFatalFailure)
{
    // Expected fatal failure, but succeeds.
    printf("(expecting 1 failure)\n");
    EXPECT_FATAL_FAILURE(SUCCEED(), "Expected fatal failure.");
    // Expected fatal failure, but got a non-fatal failure.
    printf("(expecting 1 failure)\n");
    EXPECT_FATAL_FAILURE(AddFailure(NONFATAL_FAILURE), "Expected non-fatal "
                                                       "failure.");
    // Wrong message.
    printf("(expecting 1 failure)\n");
    EXPECT_FATAL_FAILURE(AddFailure(FATAL_FAILURE), "Some other fatal failure "
                                                    "expected.");
}

TEST_F(ExpectFailureTest, ExpectNonFatalFailure)
{
    // Expected non-fatal failure, but succeeds.
    printf("(expecting 1 failure)\n");
    EXPECT_NONFATAL_FAILURE(SUCCEED(), "Expected non-fatal failure.");
    // Expected non-fatal failure, but got a fatal failure.
    printf("(expecting 1 failure)\n");
    EXPECT_NONFATAL_FAILURE(AddFailure(FATAL_FAILURE), "Expected fatal failure.");
    // Wrong message.
    printf("(expecting 1 failure)\n");
    EXPECT_NONFATAL_FAILURE(AddFailure(NONFATAL_FAILURE), "Some other non-fatal "
                                                          "failure.");
}

#if GTEST_IS_THREADSAFE

class ExpectFailureWithThreadsTest : public ExpectFailureTest
{
protected:
    static void AddFailureInOtherThread(FailureMode failure)
    {
        ThreadWithParam<FailureMode> thread(&AddFailure, failure, nullptr);
        thread.Join();
    }
};

TEST_F(ExpectFailureWithThreadsTest, ExpectFatalFailure)
{
    // We only intercept the current thread.
    printf("(expecting 2 failures)\n");
    EXPECT_FATAL_FAILURE(AddFailureInOtherThread(FATAL_FAILURE),
                         "Expected fatal failure.");
}

TEST_F(ExpectFailureWithThreadsTest, ExpectNonFatalFailure)
{
    // We only intercept the current thread.
    printf("(expecting 2 failures)\n");
    EXPECT_NONFATAL_FAILURE(AddFailureInOtherThread(NONFATAL_FAILURE),
                            "Expected non-fatal failure.");
}

typedef ExpectFailureWithThreadsTest ScopedFakeTestPartResultReporterTest;

// Tests that the ScopedFakeTestPartResultReporter only catches failures from
// the current thread if it is instantiated with INTERCEPT_ONLY_CURRENT_THREAD.
TEST_F(ScopedFakeTestPartResultReporterTest, InterceptOnlyCurrentThread)
{
    printf("(expecting 2 failures)\n");
    TestPartResultArray results;
    {
        ScopedFakeTestPartResultReporter reporter(
            ScopedFakeTestPartResultReporter::INTERCEPT_ONLY_CURRENT_THREAD,
            &results);
        AddFailureInOtherThread(FATAL_FAILURE);
        AddFailureInOtherThread(NONFATAL_FAILURE);
    }
    // The two failures should not have been intercepted.
    EXPECT_EQ(0, results.size()) << "This shouldn't fail.";
}

#endif // GTEST_IS_THREADSAFE

TEST_F(ExpectFailureTest, ExpectFatalFailureOnAllThreads)
{
    // Expected fatal failure, but succeeds.
    printf("(expecting 1 failure)\n");
    EXPECT_FATAL_FAILURE_ON_ALL_THREADS(SUCCEED(), "Expected fatal failure.");
    // Expected fatal failure, but got a non-fatal failure.
    printf("(expecting 1 failure)\n");
    EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailure(NONFATAL_FAILURE),
                                        "Expected non-fatal failure.");
    // Wrong message.
    printf("(expecting 1 failure)\n");
    EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailure(FATAL_FAILURE),
                                        "Some other fatal failure expected.");
}

TEST_F(ExpectFailureTest, ExpectNonFatalFailureOnAllThreads)
{
    // Expected non-fatal failure, but succeeds.
    printf("(expecting 1 failure)\n");
    EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(SUCCEED(), "Expected non-fatal "
                                                      "failure.");
    // Expected non-fatal failure, but got a fatal failure.
    printf("(expecting 1 failure)\n");
    EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddFailure(FATAL_FAILURE),
                                           "Expected fatal failure.");
    // Wrong message.
    printf("(expecting 1 failure)\n");
    EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddFailure(NONFATAL_FAILURE),
                                           "Some other non-fatal failure.");
}

class DynamicFixture : public testing::Test
{
protected:
    DynamicFixture() { printf("DynamicFixture()\n"); }
    ~DynamicFixture() override { printf("~DynamicFixture()\n"); }
    void SetUp() override { printf("DynamicFixture::SetUp\n"); }
    void TearDown() override { printf("DynamicFixture::TearDown\n"); }

    static void SetUpTestSuite() { printf("DynamicFixture::SetUpTestSuite\n"); }
    static void TearDownTestSuite()
    {
        printf("DynamicFixture::TearDownTestSuite\n");
    }
};

template<bool Pass>
class DynamicTest : public DynamicFixture
{
public:
    void TestBody() override { EXPECT_TRUE(Pass); }
};

auto dynamic_test = (
    // Register two tests with the same fixture correctly.
    testing::RegisterTest(
        "DynamicFixture", "DynamicTestPass", nullptr, nullptr, __FILE__,
        __LINE__, []() -> DynamicFixture * { return new DynamicTest<true>; }),
    testing::RegisterTest(
        "DynamicFixture", "DynamicTestFail", nullptr, nullptr, __FILE__,
        __LINE__, []() -> DynamicFixture * { return new DynamicTest<false>; }),

    // Register the same fixture with another name. That's fine.
    testing::RegisterTest(
        "DynamicFixtureAnotherName", "DynamicTestPass", nullptr, nullptr,
        __FILE__, __LINE__,
        []() -> DynamicFixture * { return new DynamicTest<true>; }),

    // Register two tests with the same fixture incorrectly.
    testing::RegisterTest(
        "BadDynamicFixture1", "FixtureBase", nullptr, nullptr, __FILE__,
        __LINE__, []() -> DynamicFixture * { return new DynamicTest<true>; }),
    testing::RegisterTest(
        "BadDynamicFixture1", "TestBase", nullptr, nullptr, __FILE__, __LINE__,
        []() -> testing::Test * { return new DynamicTest<true>; }),

    // Register two tests with the same fixture incorrectly by ommiting the
    // return type.
    testing::RegisterTest(
        "BadDynamicFixture2", "FixtureBase", nullptr, nullptr, __FILE__,
        __LINE__, []() -> DynamicFixture * { return new DynamicTest<true>; }),
    testing::RegisterTest("BadDynamicFixture2", "Derived", nullptr, nullptr,
                          __FILE__, __LINE__,
                          []() { return new DynamicTest<true>; }));

// Two test environments for testing testing::AddGlobalTestEnvironment().

class FooEnvironment : public testing::Environment
{
public:
    void SetUp() override { printf("%s", "FooEnvironment::SetUp() called.\n"); }

    void TearDown() override
    {
        printf("%s", "FooEnvironment::TearDown() called.\n");
        FAIL() << "Expected fatal failure.";
    }
};

class BarEnvironment : public testing::Environment
{
public:
    void SetUp() override { printf("%s", "BarEnvironment::SetUp() called.\n"); }

    void TearDown() override
    {
        printf("%s", "BarEnvironment::TearDown() called.\n");
        ADD_FAILURE() << "Expected non-fatal failure.";
    }
};

// The main function.
//
// The idea is to use Google Test to run all the tests we have defined (some
// of them are intended to fail), and then compare the test results
// with the "golden" file.
int main(int argc, char **argv)
{
    testing::GTEST_FLAG(print_time) = false;

    // We just run the tests, knowing some of them are intended to fail.
    // We will use a separate Python script to compare the output of
    // this program with the golden file.

    // It's hard to test InitGoogleTest() directly, as it has many
    // global side effects.  The following line serves as a sanity test
    // for it.
    testing::InitGoogleTest(&argc, argv);
    bool internal_skip_environment_and_ad_hoc_tests =
        std::count(argv, argv + argc,
                   std::string("internal_skip_environment_and_ad_hoc_tests"))
        > 0;

#if GTEST_HAS_DEATH_TEST
    if (testing::internal::GTEST_FLAG(internal_run_death_test) != "") {
        // Skip the usual output capturing if we're running as the child
        // process of an threadsafe-style death test.
#if GTEST_OS_WINDOWS
        posix::FReopen("nul:", "w", stdout);
#else
        posix::FReopen("/dev/null", "w", stdout);
#endif // GTEST_OS_WINDOWS
        return RUN_ALL_TESTS();
    }
#endif // GTEST_HAS_DEATH_TEST

    if (internal_skip_environment_and_ad_hoc_tests)
        return RUN_ALL_TESTS();

    // Registers two global test environments.
    // The golden file verifies that they are set up in the order they
    // are registered, and torn down in the reverse order.
    testing::AddGlobalTestEnvironment(new FooEnvironment);
    testing::AddGlobalTestEnvironment(new BarEnvironment);
#if _MSC_VER
    GTEST_DISABLE_MSC_WARNINGS_POP_() //  4127
#endif //  _MSC_VER
    return RunAllTests();
}
