// Copyright 2007, 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.

//

// Author: wan@google.com (Zhanyong Wan)

// Google Mock - a framework for writing C++ mock classes.

//

// This file tests the internal utilities.

#include "gmock/internal/gmock-internal-utils.h"

#include <stdlib.h>

#include <map>

#include <memory>

#include <string>

#include <sstream>

#include <vector>

#include "gmock/gmock.h"

#include "gmock/internal/gmock-port.h"

#include "gtest/gtest.h"

#include "gtest/gtest-spi.h"

// Indicates that this translation unit is part of Google Test's

// implementation.  It must come before gtest-internal-inl.h is

// included, or there will be a compiler error.  This trick is to

// prevent a user from accidentally including gtest-internal-inl.h in

// his code.

#define GTEST_IMPLEMENTATION_ 1

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

#undef GTEST_IMPLEMENTATION_

#if GTEST_OS_CYGWIN

# include <sys/types.h>  // For ssize_t. NOLINT

#endif

class ProtocolMessage;

namespace proto2 {

class Message;

}  // namespace proto2

namespace testing {

namespace internal {

namespace {

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsNoWord) {

  EXPECT_EQ("", ConvertIdentifierNameToWords(""));

  EXPECT_EQ("", ConvertIdentifierNameToWords("_"));

  EXPECT_EQ("", ConvertIdentifierNameToWords("__"));

}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsDigits) {

  EXPECT_EQ("1", ConvertIdentifierNameToWords("_1"));

  EXPECT_EQ("2", ConvertIdentifierNameToWords("2_"));

  EXPECT_EQ("34", ConvertIdentifierNameToWords("_34_"));

  EXPECT_EQ("34 56", ConvertIdentifierNameToWords("_34_56"));

}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsCamelCaseWords) {

  EXPECT_EQ("a big word", ConvertIdentifierNameToWords("ABigWord"));

  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("FooBar"));

  EXPECT_EQ("foo", ConvertIdentifierNameToWords("Foo_"));

  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_Foo_Bar_"));

  EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_Foo__And_Bar"));

}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContains_SeparatedWords) {

  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("foo_bar"));

  EXPECT_EQ("foo", ConvertIdentifierNameToWords("_foo_"));

  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_foo_bar_"));

  EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_foo__and_bar"));

}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameIsMixture) {

  EXPECT_EQ("foo bar 123", ConvertIdentifierNameToWords("Foo_bar123"));

  EXPECT_EQ("chapter 11 section 1",

            ConvertIdentifierNameToWords("_Chapter11Section_1_"));

}

TEST(PointeeOfTest, WorksForSmartPointers) {

  CompileAssertTypesEqual

      PointeeOf<internal::linked_ptr<const char> >::type>();

#if GTEST_HAS_STD_UNIQUE_PTR_

  CompileAssertTypesEqual<int, PointeeOf<std::unique_ptr<int> >::type>();

#endif  // GTEST_HAS_STD_UNIQUE_PTR_

#if GTEST_HAS_STD_SHARED_PTR_

  CompileAssertTypesEqual

                          PointeeOf<std::shared_ptr<std::string> >::type>();

#endif  // GTEST_HAS_STD_SHARED_PTR_

}

TEST(PointeeOfTest, WorksForRawPointers) {

  CompileAssertTypesEqual<int, PointeeOf<int*>::type>();

  CompileAssertTypesEqual<const char, PointeeOf<const char*>::type>();

  CompileAssertTypesEqual<void, PointeeOf<void*>::type>();

}

TEST(GetRawPointerTest, WorksForSmartPointers) {

#if GTEST_HAS_STD_UNIQUE_PTR_

  const char* const raw_p1 = new const char('a');  // NOLINT

  const std::unique_ptr<const char> p1(raw_p1);

  EXPECT_EQ(raw_p1, GetRawPointer(p1));

#endif  // GTEST_HAS_STD_UNIQUE_PTR_

#if GTEST_HAS_STD_SHARED_PTR_

  double* const raw_p2 = new double(2.5);  // NOLINT

  const std::shared_ptr<double> p2(raw_p2);

  EXPECT_EQ(raw_p2, GetRawPointer(p2));

#endif  // GTEST_HAS_STD_SHARED_PTR_

  const char* const raw_p4 = new const char('a');  // NOLINT

  const internal::linked_ptr<const char> p4(raw_p4);

  EXPECT_EQ(raw_p4, GetRawPointer(p4));

}

TEST(GetRawPointerTest, WorksForRawPointers) {

  int* p = NULL;

  // Don't use EXPECT_EQ as no NULL-testing magic on Symbian.

  EXPECT_TRUE(NULL == GetRawPointer(p));

  int n = 1;

  EXPECT_EQ(&n, GetRawPointer(&n);;

}

// Tests KindOf<T>.

class Base {};

class Derived : public Base {};

TEST(KindOfTest, Bool) {

  EXPECT_EQ(kBool, GMOCK_KIND_OF_(bool));  // NOLINT

}

TEST(KindOfTest, Integer) {

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(char));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(signed char));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned char));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(short));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned short));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(int));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned int));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(wchar_t));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(Int64));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(UInt64));  // NOLINT

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(size_t));  // NOLINT

#if GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN

  // ssize_t is not defined on Windows and possibly some other OSes.

  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(ssize_t));  // NOLINT

#endif

}

TEST(KindOfTest, FloatingPoint) {

  EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(float));  // NOLINT

  EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(double));  // NOLINT

  EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(long double));  // NOLINT

}

TEST(KindOfTest, Other) {

  EXPECT_EQ(kOther, GMOCK_KIND_OF_(void*));  // NOLINT

  EXPECT_EQ(kOther, GMOCK_KIND_OF_(char**));  // NOLINT

  EXPECT_EQ(kOther, GMOCK_KIND_OF_(Base));  // NOLINT

}

// Tests LosslessArithmeticConvertible<T, U>.

TEST(LosslessArithmeticConvertibleTest, BoolToBool) {

  EXPECT_TRUE((LosslessArithmeticConvertible<bool, bool>::value));

}

TEST(LosslessArithmeticConvertibleTest, BoolToInteger) {

  EXPECT_TRUE((LosslessArithmeticConvertible<bool, char>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<bool, int>::value));

  EXPECT_TRUE(

      (LosslessArithmeticConvertible<bool, unsigned long>::value));  // NOLINT

}

TEST(LosslessArithmeticConvertibleTest, BoolToFloatingPoint) {

  EXPECT_TRUE((LosslessArithmeticConvertible<bool, float>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<bool, double>::value));

}

TEST(LosslessArithmeticConvertibleTest, IntegerToBool) {

  EXPECT_FALSE((LosslessArithmeticConvertible<unsigned char, bool>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<int, bool>::value));

}

TEST(LosslessArithmeticConvertibleTest, IntegerToInteger) {

  // Unsigned => larger signed is fine.

  EXPECT_TRUE((LosslessArithmeticConvertible<unsigned char, int>::value));

  // Unsigned => larger unsigned is fine.

  EXPECT_TRUE(

      (LosslessArithmeticConvertible<unsigned short, UInt64>::value)); // NOLINT

  // Signed => unsigned is not fine.

  EXPECT_FALSE((LosslessArithmeticConvertible<short, UInt64>::value)); // NOLINT

  EXPECT_FALSE((LosslessArithmeticConvertible<

      signed char, unsigned int>::value));  // NOLINT

  // Same size and same signedness: fine too.

  EXPECT_TRUE((LosslessArithmeticConvertible<

               unsigned char, unsigned char>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<int, int>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<wchar_t, wchar_t>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<

               unsigned long, unsigned long>::value));  // NOLINT

  // Same size, different signedness: not fine.

  EXPECT_FALSE((LosslessArithmeticConvertible<

                unsigned char, signed char>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<int, unsigned int>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<UInt64, Int64>::value));

  // Larger size => smaller size is not fine.

  EXPECT_FALSE((LosslessArithmeticConvertible<long, char>::value));  // NOLINT

  EXPECT_FALSE((LosslessArithmeticConvertible<int, signed char>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<Int64, unsigned int>::value));

}

TEST(LosslessArithmeticConvertibleTest, IntegerToFloatingPoint) {

  // Integers cannot be losslessly converted to floating-points, as

  // the format of the latter is implementation-defined.

  EXPECT_FALSE((LosslessArithmeticConvertible<char, float>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<int, double>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<

                short, long double>::value));  // NOLINT

}

TEST(LosslessArithmeticConvertibleTest, FloatingPointToBool) {

  EXPECT_FALSE((LosslessArithmeticConvertible<float, bool>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<double, bool>::value));

}

TEST(LosslessArithmeticConvertibleTest, FloatingPointToInteger) {

  EXPECT_FALSE((LosslessArithmeticConvertible<float, long>::value));  // NOLINT

  EXPECT_FALSE((LosslessArithmeticConvertible<double, Int64>::value));

  EXPECT_FALSE((LosslessArithmeticConvertible<long double, int>::value));

}

TEST(LosslessArithmeticConvertibleTest, FloatingPointToFloatingPoint) {

  // Smaller size => larger size is fine.

  EXPECT_TRUE((LosslessArithmeticConvertible<float, double>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<float, long double>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<double, long double>::value));

  // Same size: fine.

  EXPECT_TRUE((LosslessArithmeticConvertible<float, float>::value));

  EXPECT_TRUE((LosslessArithmeticConvertible<double, double>::value));

  // Larger size => smaller size is not fine.

  EXPECT_FALSE((LosslessArithmeticConvertible<double, float>::value));

  GTEST_INTENTIONAL_CONST_COND_PUSH_()

  if (sizeof(double) == sizeof(long double)) {  // NOLINT

  GTEST_INTENTIONAL_CONST_COND_POP_()

    // In some implementations (e.g. MSVC), double and long double

    // have the same size.

    EXPECT_TRUE((LosslessArithmeticConvertible<long double, double>::value));

  } else {

    EXPECT_FALSE((LosslessArithmeticConvertible<long double, double>::value));

  }

}

// Tests the TupleMatches() template function.

TEST(TupleMatchesTest, WorksForSize0) {

  tuple<> matchers;

  tuple<> values;

  EXPECT_TRUE(TupleMatches(matchers, values));

}

TEST(TupleMatchesTest, WorksForSize1) {

  tuple<Matcher<int> > matchers(Eq(1));

  tuple<int> values1(1),

      values2(2);

  EXPECT_TRUE(TupleMatches(matchers, values1));

  EXPECT_FALSE(TupleMatches(matchers, values2));

}

TEST(TupleMatchesTest, WorksForSize2) {

  tuple<Matcher<int>, Matcher<char> > matchers(Eq(1), Eq('a'));

  tuple<int, char> values1(1, 'a'),

      values2(1, 'b'),

      values3(2, 'a'),

      values4(2, 'b');

  EXPECT_TRUE(TupleMatches(matchers, values1));

  EXPECT_FALSE(TupleMatches(matchers, values2));

  EXPECT_FALSE(TupleMatches(matchers, values3));

  EXPECT_FALSE(TupleMatches(matchers, values4));

}

TEST(TupleMatchesTest, WorksForSize5) {

  tuple<Matcher<int>, Matcher<char>, Matcher<bool>, Matcher<long>,  // NOLINT

      Matcher<string> >

      matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));

  tuple<int, char, bool, long, string>  // NOLINT

      values1(1, 'a', true, 2L, "hi"),

      values2(1, 'a', true, 2L, "hello"),

      values3(2, 'a', true, 2L, "hi");

  EXPECT_TRUE(TupleMatches(matchers, values1));

  EXPECT_FALSE(TupleMatches(matchers, values2));

  EXPECT_FALSE(TupleMatches(matchers, values3));

}

// Tests that Assert(true, ...) succeeds.

TEST(AssertTest, SucceedsOnTrue) {

  Assert(true, __FILE__, __LINE__, "This should succeed.");

  Assert(true, __FILE__, __LINE__);  // This should succeed too.

}

// Tests that Assert(false, ...) generates a fatal failure.

TEST(AssertTest, FailsFatallyOnFalse) {

  EXPECT_DEATH_IF_SUPPORTED({

    Assert(false, __FILE__, __LINE__, "This should fail.");

  }, "");

  EXPECT_DEATH_IF_SUPPORTED({

    Assert(false, __FILE__, __LINE__);

  }, "");

}

// Tests that Expect(true, ...) succeeds.

TEST(ExpectTest, SucceedsOnTrue) {

  Expect(true, __FILE__, __LINE__, "This should succeed.");

  Expect(true, __FILE__, __LINE__);  // This should succeed too.

}

// Tests that Expect(false, ...) generates a non-fatal failure.

TEST(ExpectTest, FailsNonfatallyOnFalse) {

  EXPECT_NONFATAL_FAILURE({  // NOLINT

    Expect(false, __FILE__, __LINE__, "This should fail.");

  }, "This should fail");

  EXPECT_NONFATAL_FAILURE({  // NOLINT

    Expect(false, __FILE__, __LINE__);

  }, "Expectation failed");

}

// Tests LogIsVisible().

class LogIsVisibleTest : public ::testing::Test {

 protected:

  virtual void SetUp() {

    original_verbose_ = GMOCK_FLAG(verbose);

  }

  virtual void TearDown() { GMOCK_FLAG(verbose) = original_verbose_; }

  string original_verbose_;

};

TEST_F(LogIsVisibleTest, AlwaysReturnsTrueIfVerbosityIsInfo) {

  GMOCK_FLAG(verbose) = kInfoVerbosity;

  EXPECT_TRUE(LogIsVisible(kInfo));

  EXPECT_TRUE(LogIsVisible(kWarning));

}

TEST_F(LogIsVisibleTest, AlwaysReturnsFalseIfVerbosityIsError) {

  GMOCK_FLAG(verbose) = kErrorVerbosity;

  EXPECT_FALSE(LogIsVisible(kInfo));

  EXPECT_FALSE(LogIsVisible(kWarning));

}

TEST_F(LogIsVisibleTest, WorksWhenVerbosityIsWarning) {

  GMOCK_FLAG(verbose) = kWarningVerbosity;

  EXPECT_FALSE(LogIsVisible(kInfo));

  EXPECT_TRUE(LogIsVisible(kWarning));

}

#if GTEST_HAS_STREAM_REDIRECTION

// Tests the Log() function.

// Verifies that Log() behaves correctly for the given verbosity level

// and log severity.

void TestLogWithSeverity(const string& verbosity, LogSeverity severity,

                         bool should_print) {

  const string old_flag = GMOCK_FLAG(verbose);

  GMOCK_FLAG(verbose) = verbosity;

  CaptureStdout();

  Log(severity, "Test log.\n", 0);

  if (should_print) {

    EXPECT_THAT(GetCapturedStdout().c_str(),

                ContainsRegex(

                    severity == kWarning ?

                    "^\nGMOCK WARNING:\nTest log\\.\nStack trace:\n" :

                    "^\nTest log\\.\nStack trace:\n"));

  } else {

    EXPECT_STREQ("", GetCapturedStdout().c_str());

  }

  GMOCK_FLAG(verbose) = old_flag;

}

// Tests that when the stack_frames_to_skip parameter is negative,

// Log() doesn't include the stack trace in the output.

TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {

  const string saved_flag = GMOCK_FLAG(verbose);

  GMOCK_FLAG(verbose) = kInfoVerbosity;

  CaptureStdout();

  Log(kInfo, "Test log.\n", -1);

  EXPECT_STREQ("\nTest log.\n", GetCapturedStdout().c_str());

  GMOCK_FLAG(verbose) = saved_flag;

}

struct MockStackTraceGetter : testing::internal::OsStackTraceGetterInterface {

  virtual string CurrentStackTrace(int max_depth, int skip_count) {

    return (testing::Message() << max_depth << "::" << skip_count << "\n")

        .GetString();

  }

  virtual void UponLeavingGTest() {}

};

// Tests that in opt mode, a positive stack_frames_to_skip argument is

// treated as 0.

TEST(LogTest, NoSkippingStackFrameInOptMode) {

  MockStackTraceGetter* mock_os_stack_trace_getter = new MockStackTraceGetter;

  GetUnitTestImpl()->set_os_stack_trace_getter(mock_os_stack_trace_getter);

  CaptureStdout();

  Log(kWarning, "Test log.\n", 100);

  const string log = GetCapturedStdout();

  string expected_trace =

      (testing::Message() << GTEST_FLAG(stack_trace_depth) << "::").GetString();

  string expected_message =

      "\nGMOCK WARNING:\n"

      "Test log.\n"

      "Stack trace:\n" +

      expected_trace;

  EXPECT_THAT(log, HasSubstr(expected_message));

  int skip_count = atoi(log.substr(expected_message.size()).c_str());

# if defined(NDEBUG)

  // In opt mode, no stack frame should be skipped.

  const int expected_skip_count = 0;

# else

  // In dbg mode, the stack frames should be skipped.

  const int expected_skip_count = 100;

# endif

  // Note that each inner implementation layer will +1 the number to remove

  // itself from the trace. This means that the value is a little higher than

  // expected, but close enough.

  EXPECT_THAT(skip_count,

              AllOf(Ge(expected_skip_count), Le(expected_skip_count + 10)));

  // Restores the default OS stack trace getter.

  GetUnitTestImpl()->set_os_stack_trace_getter(NULL);

}

// Tests that all logs are printed when the value of the

// --gmock_verbose flag is "info".

TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {

  TestLogWithSeverity(kInfoVerbosity, kInfo, true);

  TestLogWithSeverity(kInfoVerbosity, kWarning, true);

}

// Tests that only warnings are printed when the value of the

// --gmock_verbose flag is "warning".

TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {

  TestLogWithSeverity(kWarningVerbosity, kInfo, false);

  TestLogWithSeverity(kWarningVerbosity, kWarning, true);

}

// Tests that no logs are printed when the value of the

// --gmock_verbose flag is "error".

TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {

  TestLogWithSeverity(kErrorVerbosity, kInfo, false);

  TestLogWithSeverity(kErrorVerbosity, kWarning, false);

}

// Tests that only warnings are printed when the value of the

// --gmock_verbose flag is invalid.

TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {

  TestLogWithSeverity("invalid", kInfo, false);

  TestLogWithSeverity("invalid", kWarning, true);

}

#endif  // GTEST_HAS_STREAM_REDIRECTION

TEST(TypeTraitsTest, true_type) {

  EXPECT_TRUE(true_type::value);

}

TEST(TypeTraitsTest, false_type) {

  EXPECT_FALSE(false_type::value);

}

TEST(TypeTraitsTest, is_reference) {

  EXPECT_FALSE(is_reference<int>::value);

  EXPECT_FALSE(is_reference<char*>::value);

  EXPECT_TRUE(is_reference<const int&>::value);

}

TEST(TypeTraitsTest, is_pointer) {

  EXPECT_FALSE(is_pointer<int>::value);

  EXPECT_FALSE(is_pointer<char&>::value);

  EXPECT_TRUE(is_pointer<const int*>::value);

}

TEST(TypeTraitsTest, type_equals) {

  EXPECT_FALSE((type_equals<int, const int>::value));

  EXPECT_FALSE((type_equals<int, int&>::value));

  EXPECT_FALSE((type_equals<int, double>::value));

  EXPECT_TRUE((type_equals<char, char>::value));

}

TEST(TypeTraitsTest, remove_reference) {

  EXPECT_TRUE((type_equals<char, remove_reference<char&>::type>::value));

  EXPECT_TRUE((type_equals

               remove_reference<const int&>::type>::value));

  EXPECT_TRUE((type_equals<int, remove_reference<int>::type>::value));

  EXPECT_TRUE((type_equals<double*, remove_reference<double*>::type>::value));

}

#if GTEST_HAS_STREAM_REDIRECTION

// Verifies that Log() behaves correctly for the given verbosity level

// and log severity.

std::string GrabOutput(void(*logger)(), const char* verbosity) {

  const string saved_flag = GMOCK_FLAG(verbose);

  GMOCK_FLAG(verbose) = verbosity;

  CaptureStdout();

  logger();

  GMOCK_FLAG(verbose) = saved_flag;

  return GetCapturedStdout();

}

class DummyMock {

 public:

  MOCK_METHOD0(TestMethod, void());

  MOCK_METHOD1(TestMethodArg, void(int dummy));

};

void ExpectCallLogger() {

  DummyMock mock;

  EXPECT_CALL(mock, TestMethod());

  mock.TestMethod();

};

// Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".

TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {

  EXPECT_THAT(std::string(GrabOutput(ExpectCallLogger, kInfoVerbosity)),

              HasSubstr("EXPECT_CALL(mock, TestMethod())"));

}

// Verifies that EXPECT_CALL doesn't log

// if the --gmock_verbose flag is set to "warning".

TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {

  EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity).c_str());

}

// Verifies that EXPECT_CALL doesn't log

// if the --gmock_verbose flag is set to "error".

TEST(ExpectCallTest,  DoesNotLogWhenVerbosityIsError) {

  EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity).c_str());

}

void OnCallLogger() {

  DummyMock mock;

  ON_CALL(mock, TestMethod());

};

// Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".

TEST(OnCallTest, LogsWhenVerbosityIsInfo) {

  EXPECT_THAT(std::string(GrabOutput(OnCallLogger, kInfoVerbosity)),

              HasSubstr("ON_CALL(mock, TestMethod())"));

}

// Verifies that ON_CALL doesn't log

// if the --gmock_verbose flag is set to "warning".

TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {

  EXPECT_STREQ("", GrabOutput(OnCallLogger, kWarningVerbosity).c_str());

}

// Verifies that ON_CALL doesn't log if

// the --gmock_verbose flag is set to "error".

TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {

  EXPECT_STREQ("", GrabOutput(OnCallLogger, kErrorVerbosity).c_str());

}

void OnCallAnyArgumentLogger() {

  DummyMock mock;

  ON_CALL(mock, TestMethodArg(_));

}

// Verifies that ON_CALL prints provided _ argument.

TEST(OnCallTest, LogsAnythingArgument) {

  EXPECT_THAT(std::string(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity)),

              HasSubstr("ON_CALL(mock, TestMethodArg(_)"));

}

#endif  // GTEST_HAS_STREAM_REDIRECTION

// Tests StlContainerView.

TEST(StlContainerViewTest, WorksForStlContainer) {

  StaticAssertTypeEq<std::vector<int>,

      StlContainerView<std::vector<int> >::type>();

  StaticAssertTypeEq<const std::vector<double>&,

      StlContainerView<std::vector<double> >::const_reference>();

  typedef std::vector<char> Chars;

  Chars v1;

  const Chars& v2(StlContainerView<Chars>::ConstReference(v1));

  EXPECT_EQ(&v1, &v2;;

  v1.push_back('a');

  Chars v3 = StlContainerView<Chars>::Copy(v1);

  EXPECT_THAT(v3, Eq(v3));

}

TEST(StlContainerViewTest, WorksForStaticNativeArray) {

  StaticAssertTypeEq<NativeArray<int>,

      StlContainerView<int[3]>::type>();

  StaticAssertTypeEq<NativeArray<double>,

      StlContainerView<const double[4]>::type>();

  StaticAssertTypeEq<NativeArray<char[3]>,

      StlContainerView<const char[2][3]>::type>();

  StaticAssertTypeEq<const NativeArray<int>,

      StlContainerView<int[2]>::const_reference>();

  int a1[3] = { 0, 1, 2 };

  NativeArray<int> a2 = StlContainerView<int[3]>::ConstReference(a1);

  EXPECT_EQ(3U, a2.size());

  EXPECT_EQ(a1, a2.begin());

  const NativeArray<int> a3 = StlContainerView<int[3]>::Copy(a1);

  ASSERT_EQ(3U, a3.size());

  EXPECT_EQ(0, a3.begin()[0]);

  EXPECT_EQ(1, a3.begin()[1]);

  EXPECT_EQ(2, a3.begin()[2]);

  // Makes sure a1 and a3 aren't aliases.

  a1[0] = 3;

  EXPECT_EQ(0, a3.begin()[0]);

}

TEST(StlContainerViewTest, WorksForDynamicNativeArray) {

  StaticAssertTypeEq<NativeArray<int>,

      StlContainerView<tuple<const int*, size_t> >::type>();

  StaticAssertTypeEq<NativeArray<double>,

      StlContainerView<tuple<linked_ptr<double>, int> >::type>();

  StaticAssertTypeEq<const NativeArray<int>,

      StlContainerView<tuple<const int*, int> >::const_reference>();

  int a1[3] = { 0, 1, 2 };

  const int* const p1 = a1;

  NativeArray<int> a2 = StlContainerView<tuple<const int*, int> >::

      ConstReference(make_tuple(p1, 3));

  EXPECT_EQ(3U, a2.size());

  EXPECT_EQ(a1, a2.begin());

  const NativeArray<int> a3 = StlContainerView<tuple<int*, size_t> >::

      Copy(make_tuple(static_cast<int*>(a1), 3));

  ASSERT_EQ(3U, a3.size());

  EXPECT_EQ(0, a3.begin()[0]);

  EXPECT_EQ(1, a3.begin()[1]);

  EXPECT_EQ(2, a3.begin()[2]);

  // Makes sure a1 and a3 aren't aliases.

  a1[0] = 3;

  EXPECT_EQ(0, a3.begin()[0]);

}

}  // namespace

}  // namespace internal

}  // namespace testing