gmock-generated-matchers_test.cc
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gmock-generated-matchers_test.cc
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	// Copyright 2008, 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.

	// Google Mock - a framework for writing C++ mock classes.
	//
	// This file tests the built-in matchers generated by a script.

	// Silence warning C4244: 'initializing': conversion from 'int' to 'short',
	// possible loss of data and C4100, unreferenced local parameter
	#ifdef _MSC_VER
	# pragma warning(push)
	# pragma warning(disable:4244)
	# pragma warning(disable:4100)
	#endif

	#include "gmock/gmock-generated-matchers.h"

	#include <list>
	#include <map>
	#include <memory>
	#include <set>
	#include <sstream>
	#include <string>
	#include <utility>
	#include <vector>

	#include "gmock/gmock.h"
	#include "gtest/gtest.h"
	#include "gtest/gtest-spi.h"

	namespace {

	using std::list;
	using std::map;
	using std::pair;
	using std::set;
	using std::stringstream;
	using std::vector;
	using testing::_;
	using testing::AllOf;
	using testing::AllOfArray;
	using testing::AnyOf;
	using testing::AnyOfArray;
	using testing::Args;
	using testing::Contains;
	using testing::ElementsAre;
	using testing::ElementsAreArray;
	using testing::Eq;
	using testing::Ge;
	using testing::Gt;
	using testing::Le;
	using testing::Lt;
	using testing::MakeMatcher;
	using testing::Matcher;
	using testing::MatcherInterface;
	using testing::MatchResultListener;
	using testing::Ne;
	using testing::Not;
	using testing::Pointee;
	using testing::PrintToString;
	using testing::Ref;
	using testing::StaticAssertTypeEq;
	using testing::StrEq;
	using testing::Value;
	using testing::internal::ElementsAreArrayMatcher;

	// Returns the description of the given matcher.
	template <typename T>
	std::string Describe(const Matcher<T>& m) {
	stringstream ss;
	m.DescribeTo(&ss);
	return ss.str();
	}

	// Returns the description of the negation of the given matcher.
	template <typename T>
	std::string DescribeNegation(const Matcher<T>& m) {
	stringstream ss;
	m.DescribeNegationTo(&ss);
	return ss.str();
	}

	// Returns the reason why x matches, or doesn't match, m.
	template <typename MatcherType, typename Value>
	std::string Explain(const MatcherType& m, const Value& x) {
	stringstream ss;
	m.ExplainMatchResultTo(x, &ss);
	return ss.str();
	}

	// For testing ExplainMatchResultTo().
	class GreaterThanMatcher : public MatcherInterface<int> {
	public:
	explicit GreaterThanMatcher(int rhs) : rhs_(rhs) {}

	void DescribeTo(::std::ostream* os) const override {
	*os << "is greater than " << rhs_;
	}

	bool MatchAndExplain(int lhs, MatchResultListener* listener) const override {
	const int diff = lhs - rhs_;
	if (diff > 0) {
	*listener << "which is " << diff << " more than " << rhs_;
	} else if (diff == 0) {
	*listener << "which is the same as " << rhs_;
	} else {
	*listener << "which is " << -diff << " less than " << rhs_;
	}

	return lhs > rhs_;
	}

	private:
	int rhs_;
	};

	Matcher<int> GreaterThan(int n) {
	return MakeMatcher(new GreaterThanMatcher(n));
	}

	// Tests for ElementsAre().

	TEST(ElementsAreTest, CanDescribeExpectingNoElement) {
	Matcher<const vector<int>&> m = ElementsAre();
	EXPECT_EQ("is empty", Describe(m));
	}

	TEST(ElementsAreTest, CanDescribeExpectingOneElement) {
	Matcher<vector<int> > m = ElementsAre(Gt(5));
	EXPECT_EQ("has 1 element that is > 5", Describe(m));
	}

	TEST(ElementsAreTest, CanDescribeExpectingManyElements) {
	Matcher<list<std::string> > m = ElementsAre(StrEq("one"), "two");
	EXPECT_EQ("has 2 elements where\n"
	"element #0 is equal to \"one\",\n"
	"element #1 is equal to \"two\"", Describe(m));
	}

	TEST(ElementsAreTest, CanDescribeNegationOfExpectingNoElement) {
	Matcher<vector<int> > m = ElementsAre();
	EXPECT_EQ("isn't empty", DescribeNegation(m));
	}

	TEST(ElementsAreTest, CanDescribeNegationOfExpectingOneElment) {
	Matcher<const list<int>& > m = ElementsAre(Gt(5));
	EXPECT_EQ("doesn't have 1 element, or\n"
	"element #0 isn't > 5", DescribeNegation(m));
	}

	TEST(ElementsAreTest, CanDescribeNegationOfExpectingManyElements) {
	Matcher<const list<std::string>&> m = ElementsAre("one", "two");
	EXPECT_EQ("doesn't have 2 elements, or\n"
	"element #0 isn't equal to \"one\", or\n"
	"element #1 isn't equal to \"two\"", DescribeNegation(m));
	}

	TEST(ElementsAreTest, DoesNotExplainTrivialMatch) {
	Matcher<const list<int>& > m = ElementsAre(1, Ne(2));

	list<int> test_list;
	test_list.push_back(1);
	test_list.push_back(3);
	EXPECT_EQ("", Explain(m, test_list)); // No need to explain anything.
	}

	TEST(ElementsAreTest, ExplainsNonTrivialMatch) {
	Matcher<const vector<int>& > m =
	ElementsAre(GreaterThan(1), 0, GreaterThan(2));

	const int a[] = { 10, 0, 100 };
	vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	EXPECT_EQ("whose element #0 matches, which is 9 more than 1,\n"
	"and whose element #2 matches, which is 98 more than 2",
	Explain(m, test_vector));
	}

	TEST(ElementsAreTest, CanExplainMismatchWrongSize) {
	Matcher<const list<int>& > m = ElementsAre(1, 3);

	list<int> test_list;
	// No need to explain when the container is empty.
	EXPECT_EQ("", Explain(m, test_list));

	test_list.push_back(1);
	EXPECT_EQ("which has 1 element", Explain(m, test_list));
	}

	TEST(ElementsAreTest, CanExplainMismatchRightSize) {
	Matcher<const vector<int>& > m = ElementsAre(1, GreaterThan(5));

	vector<int> v;
	v.push_back(2);
	v.push_back(1);
	EXPECT_EQ("whose element #0 doesn't match", Explain(m, v));

	v[0] = 1;
	EXPECT_EQ("whose element #1 doesn't match, which is 4 less than 5",
	Explain(m, v));
	}

	TEST(ElementsAreTest, MatchesOneElementVector) {
	vector<std::string> test_vector;
	test_vector.push_back("test string");

	EXPECT_THAT(test_vector, ElementsAre(StrEq("test string")));
	}

	TEST(ElementsAreTest, MatchesOneElementList) {
	list<std::string> test_list;
	test_list.push_back("test string");

	EXPECT_THAT(test_list, ElementsAre("test string"));
	}

	TEST(ElementsAreTest, MatchesThreeElementVector) {
	vector<std::string> test_vector;
	test_vector.push_back("one");
	test_vector.push_back("two");
	test_vector.push_back("three");

	EXPECT_THAT(test_vector, ElementsAre("one", StrEq("two"), _));
	}

	TEST(ElementsAreTest, MatchesOneElementEqMatcher) {
	vector<int> test_vector;
	test_vector.push_back(4);

	EXPECT_THAT(test_vector, ElementsAre(Eq(4)));
	}

	TEST(ElementsAreTest, MatchesOneElementAnyMatcher) {
	vector<int> test_vector;
	test_vector.push_back(4);

	EXPECT_THAT(test_vector, ElementsAre(_));
	}

	TEST(ElementsAreTest, MatchesOneElementValue) {
	vector<int> test_vector;
	test_vector.push_back(4);

	EXPECT_THAT(test_vector, ElementsAre(4));
	}

	TEST(ElementsAreTest, MatchesThreeElementsMixedMatchers) {
	vector<int> test_vector;
	test_vector.push_back(1);
	test_vector.push_back(2);
	test_vector.push_back(3);

	EXPECT_THAT(test_vector, ElementsAre(1, Eq(2), _));
	}

	TEST(ElementsAreTest, MatchesTenElementVector) {
	const int a[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
	vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));

	EXPECT_THAT(test_vector,
	// The element list can contain values and/or matchers
	// of different types.
	ElementsAre(0, Ge(0), _, 3, 4, Ne(2), Eq(6), 7, 8, _));
	}

	TEST(ElementsAreTest, DoesNotMatchWrongSize) {
	vector<std::string> test_vector;
	test_vector.push_back("test string");
	test_vector.push_back("test string");

	Matcher<vector<std::string> > m = ElementsAre(StrEq("test string"));
	EXPECT_FALSE(m.Matches(test_vector));
	}

	TEST(ElementsAreTest, DoesNotMatchWrongValue) {
	vector<std::string> test_vector;
	test_vector.push_back("other string");

	Matcher<vector<std::string> > m = ElementsAre(StrEq("test string"));
	EXPECT_FALSE(m.Matches(test_vector));
	}

	TEST(ElementsAreTest, DoesNotMatchWrongOrder) {
	vector<std::string> test_vector;
	test_vector.push_back("one");
	test_vector.push_back("three");
	test_vector.push_back("two");

	Matcher<vector<std::string> > m =
	ElementsAre(StrEq("one"), StrEq("two"), StrEq("three"));
	EXPECT_FALSE(m.Matches(test_vector));
	}

	TEST(ElementsAreTest, WorksForNestedContainer) {
	const char* strings[] = {
	"Hi",
	"world"
	};

	vector<list<char> > nested;
	for (size_t i = 0; i < GTEST_ARRAY_SIZE_(strings); i++) {
	nested.push_back(list<char>(strings[i], strings[i] + strlen(strings[i])));
	}

	EXPECT_THAT(nested, ElementsAre(ElementsAre('H', Ne('e')),
	ElementsAre('w', 'o', _, _, 'd')));
	EXPECT_THAT(nested, Not(ElementsAre(ElementsAre('H', 'e'),
	ElementsAre('w', 'o', _, _, 'd'))));
	}

	TEST(ElementsAreTest, WorksWithByRefElementMatchers) {
	int a[] = { 0, 1, 2 };
	vector<int> v(a, a + GTEST_ARRAY_SIZE_(a));

	EXPECT_THAT(v, ElementsAre(Ref(v[0]), Ref(v[1]), Ref(v[2])));
	EXPECT_THAT(v, Not(ElementsAre(Ref(v[0]), Ref(v[1]), Ref(a[2]))));
	}

	TEST(ElementsAreTest, WorksWithContainerPointerUsingPointee) {
	int a[] = { 0, 1, 2 };
	vector<int> v(a, a + GTEST_ARRAY_SIZE_(a));

	EXPECT_THAT(&v, Pointee(ElementsAre(0, 1, _)));
	EXPECT_THAT(&v, Not(Pointee(ElementsAre(0, _, 3))));
	}

	TEST(ElementsAreTest, WorksWithNativeArrayPassedByReference) {
	int array[] = { 0, 1, 2 };
	EXPECT_THAT(array, ElementsAre(0, 1, _));
	EXPECT_THAT(array, Not(ElementsAre(1, _, _)));
	EXPECT_THAT(array, Not(ElementsAre(0, _)));
	}

	class NativeArrayPassedAsPointerAndSize {
	public:
	NativeArrayPassedAsPointerAndSize() {}

	MOCK_METHOD2(Helper, void(int* array, int size));

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(NativeArrayPassedAsPointerAndSize);
	};

	TEST(ElementsAreTest, WorksWithNativeArrayPassedAsPointerAndSize) {
	int array[] = { 0, 1 };
	::std::tuple<int*, size_t> array_as_tuple(array, 2);
	EXPECT_THAT(array_as_tuple, ElementsAre(0, 1));
	EXPECT_THAT(array_as_tuple, Not(ElementsAre(0)));

	NativeArrayPassedAsPointerAndSize helper;
	EXPECT_CALL(helper, Helper(_, _))
	.With(ElementsAre(0, 1));
	helper.Helper(array, 2);
	}

	TEST(ElementsAreTest, WorksWithTwoDimensionalNativeArray) {
	const char a2[][3] = { "hi", "lo" };
	EXPECT_THAT(a2, ElementsAre(ElementsAre('h', 'i', '\0'),
	ElementsAre('l', 'o', '\0')));
	EXPECT_THAT(a2, ElementsAre(StrEq("hi"), StrEq("lo")));
	EXPECT_THAT(a2, ElementsAre(Not(ElementsAre('h', 'o', '\0')),
	ElementsAre('l', 'o', '\0')));
	}

	TEST(ElementsAreTest, AcceptsStringLiteral) {
	std::string array[] = {"hi", "one", "two"};
	EXPECT_THAT(array, ElementsAre("hi", "one", "two"));
	EXPECT_THAT(array, Not(ElementsAre("hi", "one", "too")));
	}

	#ifndef _MSC_VER

	// The following test passes a value of type const char[] to a
	// function template that expects const T&. Some versions of MSVC
	// generates a compiler error C2665 for that. We believe it's a bug
	// in MSVC. Therefore this test is #if-ed out for MSVC.

	// Declared here with the size unknown. Defined AFTER the following test.
	extern const char kHi[];

	TEST(ElementsAreTest, AcceptsArrayWithUnknownSize) {
	// The size of kHi is not known in this test, but ElementsAre() should
	// still accept it.

	std::string array1[] = {"hi"};
	EXPECT_THAT(array1, ElementsAre(kHi));

	std::string array2[] = {"ho"};
	EXPECT_THAT(array2, Not(ElementsAre(kHi)));
	}

	const char kHi[] = "hi";

	#endif // _MSC_VER

	TEST(ElementsAreTest, MakesCopyOfArguments) {
	int x = 1;
	int y = 2;
	// This should make a copy of x and y.
	::testing::internal::ElementsAreMatcher<std::tuple<int, int> >
	polymorphic_matcher = ElementsAre(x, y);
	// Changing x and y now shouldn't affect the meaning of the above matcher.
	x = y = 0;
	const int array1[] = { 1, 2 };
	EXPECT_THAT(array1, polymorphic_matcher);
	const int array2[] = { 0, 0 };
	EXPECT_THAT(array2, Not(polymorphic_matcher));
	}


	// Tests for ElementsAreArray(). Since ElementsAreArray() shares most
	// of the implementation with ElementsAre(), we don't test it as
	// thoroughly here.

	TEST(ElementsAreArrayTest, CanBeCreatedWithValueArray) {
	const int a[] = { 1, 2, 3 };

	vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	EXPECT_THAT(test_vector, ElementsAreArray(a));

	test_vector[2] = 0;
	EXPECT_THAT(test_vector, Not(ElementsAreArray(a)));
	}

	TEST(ElementsAreArrayTest, CanBeCreatedWithArraySize) {
	const char* a[] = { "one", "two", "three" };

	vector<std::string> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	EXPECT_THAT(test_vector, ElementsAreArray(a, GTEST_ARRAY_SIZE_(a)));

	const char** p = a;
	test_vector[0] = "1";
	EXPECT_THAT(test_vector, Not(ElementsAreArray(p, GTEST_ARRAY_SIZE_(a))));
	}

	TEST(ElementsAreArrayTest, CanBeCreatedWithoutArraySize) {
	const char* a[] = { "one", "two", "three" };

	vector<std::string> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	EXPECT_THAT(test_vector, ElementsAreArray(a));

	test_vector[0] = "1";
	EXPECT_THAT(test_vector, Not(ElementsAreArray(a)));
	}

	TEST(ElementsAreArrayTest, CanBeCreatedWithMatcherArray) {
	const Matcher<std::string> kMatcherArray[] = {StrEq("one"), StrEq("two"),
	StrEq("three")};

	vector<std::string> test_vector;
	test_vector.push_back("one");
	test_vector.push_back("two");
	test_vector.push_back("three");
	EXPECT_THAT(test_vector, ElementsAreArray(kMatcherArray));

	test_vector.push_back("three");
	EXPECT_THAT(test_vector, Not(ElementsAreArray(kMatcherArray)));
	}

	TEST(ElementsAreArrayTest, CanBeCreatedWithVector) {
	const int a[] = { 1, 2, 3 };
	vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	const vector<int> expected(a, a + GTEST_ARRAY_SIZE_(a));
	EXPECT_THAT(test_vector, ElementsAreArray(expected));
	test_vector.push_back(4);
	EXPECT_THAT(test_vector, Not(ElementsAreArray(expected)));
	}


	TEST(ElementsAreArrayTest, TakesInitializerList) {
	const int a[5] = { 1, 2, 3, 4, 5 };
	EXPECT_THAT(a, ElementsAreArray({ 1, 2, 3, 4, 5 }));
	EXPECT_THAT(a, Not(ElementsAreArray({ 1, 2, 3, 5, 4 })));
	EXPECT_THAT(a, Not(ElementsAreArray({ 1, 2, 3, 4, 6 })));
	}

	TEST(ElementsAreArrayTest, TakesInitializerListOfCStrings) {
	const std::string a[5] = {"a", "b", "c", "d", "e"};
	EXPECT_THAT(a, ElementsAreArray({ "a", "b", "c", "d", "e" }));
	EXPECT_THAT(a, Not(ElementsAreArray({ "a", "b", "c", "e", "d" })));
	EXPECT_THAT(a, Not(ElementsAreArray({ "a", "b", "c", "d", "ef" })));
	}

	TEST(ElementsAreArrayTest, TakesInitializerListOfSameTypedMatchers) {
	const int a[5] = { 1, 2, 3, 4, 5 };
	EXPECT_THAT(a, ElementsAreArray(
	{ Eq(1), Eq(2), Eq(3), Eq(4), Eq(5) }));
	EXPECT_THAT(a, Not(ElementsAreArray(
	{ Eq(1), Eq(2), Eq(3), Eq(4), Eq(6) })));
	}

	TEST(ElementsAreArrayTest,
	TakesInitializerListOfDifferentTypedMatchers) {
	const int a[5] = { 1, 2, 3, 4, 5 };
	// The compiler cannot infer the type of the initializer list if its
	// elements have different types. We must explicitly specify the
	// unified element type in this case.
	EXPECT_THAT(a, ElementsAreArray<Matcher<int> >(
	{ Eq(1), Ne(-2), Ge(3), Le(4), Eq(5) }));
	EXPECT_THAT(a, Not(ElementsAreArray<Matcher<int> >(
	{ Eq(1), Ne(-2), Ge(3), Le(4), Eq(6) })));
	}


	TEST(ElementsAreArrayTest, CanBeCreatedWithMatcherVector) {
	const int a[] = { 1, 2, 3 };
	const Matcher<int> kMatchers[] = { Eq(1), Eq(2), Eq(3) };
	vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	const vector<Matcher<int> > expected(
	kMatchers, kMatchers + GTEST_ARRAY_SIZE_(kMatchers));
	EXPECT_THAT(test_vector, ElementsAreArray(expected));
	test_vector.push_back(4);
	EXPECT_THAT(test_vector, Not(ElementsAreArray(expected)));
	}

	TEST(ElementsAreArrayTest, CanBeCreatedWithIteratorRange) {
	const int a[] = { 1, 2, 3 };
	const vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	const vector<int> expected(a, a + GTEST_ARRAY_SIZE_(a));
	EXPECT_THAT(test_vector, ElementsAreArray(expected.begin(), expected.end()));
	// Pointers are iterators, too.
	EXPECT_THAT(test_vector, ElementsAreArray(a, a + GTEST_ARRAY_SIZE_(a)));
	// The empty range of NULL pointers should also be okay.
	int* const null_int = nullptr;
	EXPECT_THAT(test_vector, Not(ElementsAreArray(null_int, null_int)));
	EXPECT_THAT((vector<int>()), ElementsAreArray(null_int, null_int));
	}

	// Since ElementsAre() and ElementsAreArray() share much of the
	// implementation, we only do a sanity test for native arrays here.
	TEST(ElementsAreArrayTest, WorksWithNativeArray) {
	::std::string a[] = { "hi", "ho" };
	::std::string b[] = { "hi", "ho" };

	EXPECT_THAT(a, ElementsAreArray(b));
	EXPECT_THAT(a, ElementsAreArray(b, 2));
	EXPECT_THAT(a, Not(ElementsAreArray(b, 1)));
	}

	TEST(ElementsAreArrayTest, SourceLifeSpan) {
	const int a[] = { 1, 2, 3 };
	vector<int> test_vector(a, a + GTEST_ARRAY_SIZE_(a));
	vector<int> expect(a, a + GTEST_ARRAY_SIZE_(a));
	ElementsAreArrayMatcher<int> matcher_maker =
	ElementsAreArray(expect.begin(), expect.end());
	EXPECT_THAT(test_vector, matcher_maker);
	// Changing in place the values that initialized matcher_maker should not
	// affect matcher_maker anymore. It should have made its own copy of them.
	typedef vector<int>::iterator Iter;
	for (Iter it = expect.begin(); it != expect.end(); ++it) { *it += 10; }
	EXPECT_THAT(test_vector, matcher_maker);
	test_vector.push_back(3);
	EXPECT_THAT(test_vector, Not(matcher_maker));
	}

	// Tests for the MATCHER*() macro family.

	// Tests that a simple MATCHER() definition works.

	MATCHER(IsEven, "") { return (arg % 2) == 0; }

	TEST(MatcherMacroTest, Works) {
	const Matcher<int> m = IsEven();
	EXPECT_TRUE(m.Matches(6));
	EXPECT_FALSE(m.Matches(7));

	EXPECT_EQ("is even", Describe(m));
	EXPECT_EQ("not (is even)", DescribeNegation(m));
	EXPECT_EQ("", Explain(m, 6));
	EXPECT_EQ("", Explain(m, 7));
	}

	// This also tests that the description string can reference 'negation'.
	MATCHER(IsEven2, negation ? "is odd" : "is even") {
	if ((arg % 2) == 0) {
	// Verifies that we can stream to result_listener, a listener
	// supplied by the MATCHER macro implicitly.
	*result_listener << "OK";
	return true;
	} else {
	*result_listener << "% 2 == " << (arg % 2);
	return false;
	}
	}

	// This also tests that the description string can reference matcher
	// parameters.
	MATCHER_P2(EqSumOf, x, y, std::string(negation ? "doesn't equal" : "equals") +
	" the sum of " + PrintToString(x) + " and " +
	PrintToString(y)) {
	if (arg == (x + y)) {
	*result_listener << "OK";
	return true;
	} else {
	// Verifies that we can stream to the underlying stream of
	// result_listener.
	if (result_listener->stream() != nullptr) {
	*result_listener->stream() << "diff == " << (x + y - arg);
	}
	return false;
	}
	}

	// Tests that the matcher description can reference 'negation' and the
	// matcher parameters.
	TEST(MatcherMacroTest, DescriptionCanReferenceNegationAndParameters) {
	const Matcher<int> m1 = IsEven2();
	EXPECT_EQ("is even", Describe(m1));
	EXPECT_EQ("is odd", DescribeNegation(m1));

	const Matcher<int> m2 = EqSumOf(5, 9);
	EXPECT_EQ("equals the sum of 5 and 9", Describe(m2));
	EXPECT_EQ("doesn't equal the sum of 5 and 9", DescribeNegation(m2));
	}

	// Tests explaining match result in a MATCHER* macro.
	TEST(MatcherMacroTest, CanExplainMatchResult) {
	const Matcher<int> m1 = IsEven2();
	EXPECT_EQ("OK", Explain(m1, 4));
	EXPECT_EQ("% 2 == 1", Explain(m1, 5));

	const Matcher<int> m2 = EqSumOf(1, 2);
	EXPECT_EQ("OK", Explain(m2, 3));
	EXPECT_EQ("diff == -1", Explain(m2, 4));
	}

	// Tests that the body of MATCHER() can reference the type of the
	// value being matched.

	MATCHER(IsEmptyString, "") {
	StaticAssertTypeEq< ::std::string, arg_type>();
	return arg == "";
	}

	MATCHER(IsEmptyStringByRef, "") {
	StaticAssertTypeEq<const ::std::string&, arg_type>();
	return arg == "";
	}

	TEST(MatcherMacroTest, CanReferenceArgType) {
	const Matcher< ::std::string> m1 = IsEmptyString();
	EXPECT_TRUE(m1.Matches(""));

	const Matcher<const ::std::string&> m2 = IsEmptyStringByRef();
	EXPECT_TRUE(m2.Matches(""));
	}

	// Tests that MATCHER() can be used in a namespace.

	namespace matcher_test {
	MATCHER(IsOdd, "") { return (arg % 2) != 0; }
	} // namespace matcher_test

	TEST(MatcherMacroTest, WorksInNamespace) {
	Matcher<int> m = matcher_test::IsOdd();
	EXPECT_FALSE(m.Matches(4));
	EXPECT_TRUE(m.Matches(5));
	}

	// Tests that Value() can be used to compose matchers.
	MATCHER(IsPositiveOdd, "") {
	return Value(arg, matcher_test::IsOdd()) && arg > 0;
	}

	TEST(MatcherMacroTest, CanBeComposedUsingValue) {
	EXPECT_THAT(3, IsPositiveOdd());
	EXPECT_THAT(4, Not(IsPositiveOdd()));
	EXPECT_THAT(-1, Not(IsPositiveOdd()));
	}

	// Tests that a simple MATCHER_P() definition works.

	MATCHER_P(IsGreaterThan32And, n, "") { return arg > 32 && arg > n; }

	TEST(MatcherPMacroTest, Works) {
	const Matcher<int> m = IsGreaterThan32And(5);
	EXPECT_TRUE(m.Matches(36));
	EXPECT_FALSE(m.Matches(5));

	EXPECT_EQ("is greater than 32 and 5", Describe(m));
	EXPECT_EQ("not (is greater than 32 and 5)", DescribeNegation(m));
	EXPECT_EQ("", Explain(m, 36));
	EXPECT_EQ("", Explain(m, 5));
	}

	// Tests that the description is calculated correctly from the matcher name.
	MATCHER_P(_is_Greater_Than32and_, n, "") { return arg > 32 && arg > n; }

	TEST(MatcherPMacroTest, GeneratesCorrectDescription) {
	const Matcher<int> m = _is_Greater_Than32and_(5);

	EXPECT_EQ("is greater than 32 and 5", Describe(m));
	EXPECT_EQ("not (is greater than 32 and 5)", DescribeNegation(m));
	EXPECT_EQ("", Explain(m, 36));
	EXPECT_EQ("", Explain(m, 5));
	}

	// Tests that a MATCHER_P matcher can be explicitly instantiated with
	// a reference parameter type.

	class UncopyableFoo {
	public:
	explicit UncopyableFoo(char value) : value_(value) {}
	private:
	UncopyableFoo(const UncopyableFoo&);
	void operator=(const UncopyableFoo&);

	char value_;
	};

	MATCHER_P(ReferencesUncopyable, variable, "") { return &arg == &variable; }

	TEST(MatcherPMacroTest, WorksWhenExplicitlyInstantiatedWithReference) {
	UncopyableFoo foo1('1'), foo2('2');
	const Matcher<const UncopyableFoo&> m =
	ReferencesUncopyable<const UncopyableFoo&>(foo1);

	EXPECT_TRUE(m.Matches(foo1));
	EXPECT_FALSE(m.Matches(foo2));

	// We don't want the address of the parameter printed, as most
	// likely it will just annoy the user. If the address is
	// interesting, the user should consider passing the parameter by
	// pointer instead.
	EXPECT_EQ("references uncopyable 1-byte object <31>", Describe(m));
	}


	// Tests that the body of MATCHER_Pn() can reference the parameter
	// types.

	MATCHER_P3(ParamTypesAreIntLongAndChar, foo, bar, baz, "") {
	StaticAssertTypeEq<int, foo_type>();
	StaticAssertTypeEq<long, bar_type>(); // NOLINT
	StaticAssertTypeEq<char, baz_type>();
	return arg == 0;
	}

	TEST(MatcherPnMacroTest, CanReferenceParamTypes) {
	EXPECT_THAT(0, ParamTypesAreIntLongAndChar(10, 20L, 'a'));
	}

	// Tests that a MATCHER_Pn matcher can be explicitly instantiated with
	// reference parameter types.

	MATCHER_P2(ReferencesAnyOf, variable1, variable2, "") {
	return &arg == &variable1 \|\| &arg == &variable2;
	}

	TEST(MatcherPnMacroTest, WorksWhenExplicitlyInstantiatedWithReferences) {
	UncopyableFoo foo1('1'), foo2('2'), foo3('3');
	const Matcher<const UncopyableFoo&> m =
	ReferencesAnyOf<const UncopyableFoo&, const UncopyableFoo&>(foo1, foo2);

	EXPECT_TRUE(m.Matches(foo1));
	EXPECT_TRUE(m.Matches(foo2));
	EXPECT_FALSE(m.Matches(foo3));
	}

	TEST(MatcherPnMacroTest,
	GeneratesCorretDescriptionWhenExplicitlyInstantiatedWithReferences) {
	UncopyableFoo foo1('1'), foo2('2');
	const Matcher<const UncopyableFoo&> m =
	ReferencesAnyOf<const UncopyableFoo&, const UncopyableFoo&>(foo1, foo2);

	// We don't want the addresses of the parameters printed, as most
	// likely they will just annoy the user. If the addresses are
	// interesting, the user should consider passing the parameters by
	// pointers instead.
	EXPECT_EQ("references any of (1-byte object <31>, 1-byte object <32>)",
	Describe(m));
	}

	// Tests that a simple MATCHER_P2() definition works.

	MATCHER_P2(IsNotInClosedRange, low, hi, "") { return arg < low \|\| arg > hi; }

	TEST(MatcherPnMacroTest, Works) {
	const Matcher<const long&> m = IsNotInClosedRange(10, 20); // NOLINT
	EXPECT_TRUE(m.Matches(36L));
	EXPECT_FALSE(m.Matches(15L));

	EXPECT_EQ("is not in closed range (10, 20)", Describe(m));
	EXPECT_EQ("not (is not in closed range (10, 20))", DescribeNegation(m));
	EXPECT_EQ("", Explain(m, 36L));
	EXPECT_EQ("", Explain(m, 15L));
	}

	// Tests that MATCHER*() definitions can be overloaded on the number
	// of parameters; also tests MATCHER_Pn() where n >= 3.

	MATCHER(EqualsSumOf, "") { return arg == 0; }
	MATCHER_P(EqualsSumOf, a, "") { return arg == a; }
	MATCHER_P2(EqualsSumOf, a, b, "") { return arg == a + b; }
	MATCHER_P3(EqualsSumOf, a, b, c, "") { return arg == a + b + c; }
	MATCHER_P4(EqualsSumOf, a, b, c, d, "") { return arg == a + b + c + d; }
	MATCHER_P5(EqualsSumOf, a, b, c, d, e, "") { return arg == a + b + c + d + e; }
	MATCHER_P6(EqualsSumOf, a, b, c, d, e, f, "") {
	return arg == a + b + c + d + e + f;
	}
	MATCHER_P7(EqualsSumOf, a, b, c, d, e, f, g, "") {
	return arg == a + b + c + d + e + f + g;
	}
	MATCHER_P8(EqualsSumOf, a, b, c, d, e, f, g, h, "") {
	return arg == a + b + c + d + e + f + g + h;
	}
	MATCHER_P9(EqualsSumOf, a, b, c, d, e, f, g, h, i, "") {
	return arg == a + b + c + d + e + f + g + h + i;
	}
	MATCHER_P10(EqualsSumOf, a, b, c, d, e, f, g, h, i, j, "") {
	return arg == a + b + c + d + e + f + g + h + i + j;
	}

	TEST(MatcherPnMacroTest, CanBeOverloadedOnNumberOfParameters) {
	EXPECT_THAT(0, EqualsSumOf());
	EXPECT_THAT(1, EqualsSumOf(1));
	EXPECT_THAT(12, EqualsSumOf(10, 2));
	EXPECT_THAT(123, EqualsSumOf(100, 20, 3));
	EXPECT_THAT(1234, EqualsSumOf(1000, 200, 30, 4));
	EXPECT_THAT(12345, EqualsSumOf(10000, 2000, 300, 40, 5));
	EXPECT_THAT("abcdef",
	EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f'));
	EXPECT_THAT("abcdefg",
	EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g'));
	EXPECT_THAT("abcdefgh",
	EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g',
	"h"));
	EXPECT_THAT("abcdefghi",
	EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g',
	"h", 'i'));
	EXPECT_THAT("abcdefghij",
	EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g',
	"h", 'i', ::std::string("j")));

	EXPECT_THAT(1, Not(EqualsSumOf()));
	EXPECT_THAT(-1, Not(EqualsSumOf(1)));
	EXPECT_THAT(-12, Not(EqualsSumOf(10, 2)));
	EXPECT_THAT(-123, Not(EqualsSumOf(100, 20, 3)));
	EXPECT_THAT(-1234, Not(EqualsSumOf(1000, 200, 30, 4)));
	EXPECT_THAT(-12345, Not(EqualsSumOf(10000, 2000, 300, 40, 5)));
	EXPECT_THAT("abcdef ",
	Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f')));
	EXPECT_THAT("abcdefg ",
	Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f',
	'g')));
	EXPECT_THAT("abcdefgh ",
	Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g',
	"h")));
	EXPECT_THAT("abcdefghi ",
	Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g',
	"h", 'i')));
	EXPECT_THAT("abcdefghij ",
	Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g',
	"h", 'i', ::std::string("j"))));
	}

	// Tests that a MATCHER_Pn() definition can be instantiated with any
	// compatible parameter types.
	TEST(MatcherPnMacroTest, WorksForDifferentParameterTypes) {
	EXPECT_THAT(123, EqualsSumOf(100L, 20, static_cast<char>(3)));
	EXPECT_THAT("abcd", EqualsSumOf(::std::string("a"), "b", 'c', "d"));

	EXPECT_THAT(124, Not(EqualsSumOf(100L, 20, static_cast<char>(3))));
	EXPECT_THAT("abcde", Not(EqualsSumOf(::std::string("a"), "b", 'c', "d")));
	}

	// Tests that the matcher body can promote the parameter types.

	MATCHER_P2(EqConcat, prefix, suffix, "") {
	// The following lines promote the two parameters to desired types.
	std::string prefix_str(prefix);
	char suffix_char = static_cast<char>(suffix);
	return arg == prefix_str + suffix_char;
	}

	TEST(MatcherPnMacroTest, SimpleTypePromotion) {
	Matcher<std::string> no_promo =
	EqConcat(std::string("foo"), 't');
	Matcher<const std::string&> promo =
	EqConcat("foo", static_cast<int>('t'));
	EXPECT_FALSE(no_promo.Matches("fool"));
	EXPECT_FALSE(promo.Matches("fool"));
	EXPECT_TRUE(no_promo.Matches("foot"));
	EXPECT_TRUE(promo.Matches("foot"));
	}

	// Verifies the type of a MATCHER*.

	TEST(MatcherPnMacroTest, TypesAreCorrect) {
	// EqualsSumOf() must be assignable to a EqualsSumOfMatcher variable.
	EqualsSumOfMatcher a0 = EqualsSumOf();

	// EqualsSumOf(1) must be assignable to a EqualsSumOfMatcherP variable.
	EqualsSumOfMatcherP<int> a1 = EqualsSumOf(1);

	// EqualsSumOf(p1, ..., pk) must be assignable to a EqualsSumOfMatcherPk
	// variable, and so on.
	EqualsSumOfMatcherP2<int, char> a2 = EqualsSumOf(1, '2');
	EqualsSumOfMatcherP3<int, int, char> a3 = EqualsSumOf(1, 2, '3');
	EqualsSumOfMatcherP4<int, int, int, char> a4 = EqualsSumOf(1, 2, 3, '4');
	EqualsSumOfMatcherP5<int, int, int, int, char> a5 =
	EqualsSumOf(1, 2, 3, 4, '5');
	EqualsSumOfMatcherP6<int, int, int, int, int, char> a6 =
	EqualsSumOf(1, 2, 3, 4, 5, '6');
	EqualsSumOfMatcherP7<int, int, int, int, int, int, char> a7 =
	EqualsSumOf(1, 2, 3, 4, 5, 6, '7');
	EqualsSumOfMatcherP8<int, int, int, int, int, int, int, char> a8 =
	EqualsSumOf(1, 2, 3, 4, 5, 6, 7, '8');
	EqualsSumOfMatcherP9<int, int, int, int, int, int, int, int, char> a9 =
	EqualsSumOf(1, 2, 3, 4, 5, 6, 7, 8, '9');
	EqualsSumOfMatcherP10<int, int, int, int, int, int, int, int, int, char> a10 =
	EqualsSumOf(1, 2, 3, 4, 5, 6, 7, 8, 9, '0');

	// Avoid "unused variable" warnings.
	(void)a0;
	(void)a1;
	(void)a2;
	(void)a3;
	(void)a4;
	(void)a5;
	(void)a6;
	(void)a7;
	(void)a8;
	(void)a9;
	(void)a10;
	}

	// Tests that matcher-typed parameters can be used in Value() inside a
	// MATCHER_Pn definition.

	// Succeeds if arg matches exactly 2 of the 3 matchers.
	MATCHER_P3(TwoOf, m1, m2, m3, "") {
	const int count = static_cast<int>(Value(arg, m1))
	+ static_cast<int>(Value(arg, m2)) + static_cast<int>(Value(arg, m3));
	return count == 2;
	}

	TEST(MatcherPnMacroTest, CanUseMatcherTypedParameterInValue) {
	EXPECT_THAT(42, TwoOf(Gt(0), Lt(50), Eq(10)));
	EXPECT_THAT(0, Not(TwoOf(Gt(-1), Lt(1), Eq(0))));
	}

	// Tests Contains().

	TEST(ContainsTest, ListMatchesWhenElementIsInContainer) {
	list<int> some_list;
	some_list.push_back(3);
	some_list.push_back(1);
	some_list.push_back(2);
	EXPECT_THAT(some_list, Contains(1));
	EXPECT_THAT(some_list, Contains(Gt(2.5)));
	EXPECT_THAT(some_list, Contains(Eq(2.0f)));

	list<std::string> another_list;
	another_list.push_back("fee");
	another_list.push_back("fie");
	another_list.push_back("foe");
	another_list.push_back("fum");
	EXPECT_THAT(another_list, Contains(std::string("fee")));
	}

	TEST(ContainsTest, ListDoesNotMatchWhenElementIsNotInContainer) {
	list<int> some_list;
	some_list.push_back(3);
	some_list.push_back(1);
	EXPECT_THAT(some_list, Not(Contains(4)));
	}

	TEST(ContainsTest, SetMatchesWhenElementIsInContainer) {
	set<int> some_set;
	some_set.insert(3);
	some_set.insert(1);
	some_set.insert(2);
	EXPECT_THAT(some_set, Contains(Eq(1.0)));
	EXPECT_THAT(some_set, Contains(Eq(3.0f)));
	EXPECT_THAT(some_set, Contains(2));

	set<const char*> another_set;
	another_set.insert("fee");
	another_set.insert("fie");
	another_set.insert("foe");
	another_set.insert("fum");
	EXPECT_THAT(another_set, Contains(Eq(std::string("fum"))));
	}

	TEST(ContainsTest, SetDoesNotMatchWhenElementIsNotInContainer) {
	set<int> some_set;
	some_set.insert(3);
	some_set.insert(1);
	EXPECT_THAT(some_set, Not(Contains(4)));

	set<const char*> c_string_set;
	c_string_set.insert("hello");
	EXPECT_THAT(c_string_set, Not(Contains(std::string("hello").c_str())));
	}

	TEST(ContainsTest, ExplainsMatchResultCorrectly) {
	const int a[2] = { 1, 2 };
	Matcher<const int (&)[2]> m = Contains(2);
	EXPECT_EQ("whose element #1 matches", Explain(m, a));

	m = Contains(3);
	EXPECT_EQ("", Explain(m, a));

	m = Contains(GreaterThan(0));
	EXPECT_EQ("whose element #0 matches, which is 1 more than 0", Explain(m, a));

	m = Contains(GreaterThan(10));
	EXPECT_EQ("", Explain(m, a));
	}

	TEST(ContainsTest, DescribesItselfCorrectly) {
	Matcher<vector<int> > m = Contains(1);
	EXPECT_EQ("contains at least one element that is equal to 1", Describe(m));

	Matcher<vector<int> > m2 = Not(m);
	EXPECT_EQ("doesn't contain any element that is equal to 1", Describe(m2));
	}

	TEST(ContainsTest, MapMatchesWhenElementIsInContainer) {
	map<const char*, int> my_map;
	const char* bar = "a string";
	my_map[bar] = 2;
	EXPECT_THAT(my_map, Contains(pair<const char* const, int>(bar, 2)));

	map<std::string, int> another_map;
	another_map["fee"] = 1;
	another_map["fie"] = 2;
	another_map["foe"] = 3;
	another_map["fum"] = 4;
	EXPECT_THAT(another_map,
	Contains(pair<const std::string, int>(std::string("fee"), 1)));
	EXPECT_THAT(another_map, Contains(pair<const std::string, int>("fie", 2)));
	}

	TEST(ContainsTest, MapDoesNotMatchWhenElementIsNotInContainer) {
	map<int, int> some_map;
	some_map[1] = 11;
	some_map[2] = 22;
	EXPECT_THAT(some_map, Not(Contains(pair<const int, int>(2, 23))));
	}

	TEST(ContainsTest, ArrayMatchesWhenElementIsInContainer) {
	const char* string_array[] = { "fee", "fie", "foe", "fum" };
	EXPECT_THAT(string_array, Contains(Eq(std::string("fum"))));
	}

	TEST(ContainsTest, ArrayDoesNotMatchWhenElementIsNotInContainer) {
	int int_array[] = { 1, 2, 3, 4 };
	EXPECT_THAT(int_array, Not(Contains(5)));
	}

	TEST(ContainsTest, AcceptsMatcher) {
	const int a[] = { 1, 2, 3 };
	EXPECT_THAT(a, Contains(Gt(2)));
	EXPECT_THAT(a, Not(Contains(Gt(4))));
	}

	TEST(ContainsTest, WorksForNativeArrayAsTuple) {
	const int a[] = { 1, 2 };
	const int* const pointer = a;
	EXPECT_THAT(std::make_tuple(pointer, 2), Contains(1));
	EXPECT_THAT(std::make_tuple(pointer, 2), Not(Contains(Gt(3))));
	}

	TEST(ContainsTest, WorksForTwoDimensionalNativeArray) {
	int a[][3] = { { 1, 2, 3 }, { 4, 5, 6 } };
	EXPECT_THAT(a, Contains(ElementsAre(4, 5, 6)));
	EXPECT_THAT(a, Contains(Contains(5)));
	EXPECT_THAT(a, Not(Contains(ElementsAre(3, 4, 5))));
	EXPECT_THAT(a, Contains(Not(Contains(5))));
	}

	TEST(AllOfArrayTest, BasicForms) {
	// Iterator
	std::vector<int> v0{};
	std::vector<int> v1{1};
	std::vector<int> v2{2, 3};
	std::vector<int> v3{4, 4, 4};
	EXPECT_THAT(0, AllOfArray(v0.begin(), v0.end()));
	EXPECT_THAT(1, AllOfArray(v1.begin(), v1.end()));
	EXPECT_THAT(2, Not(AllOfArray(v1.begin(), v1.end())));
	EXPECT_THAT(3, Not(AllOfArray(v2.begin(), v2.end())));
	EXPECT_THAT(4, AllOfArray(v3.begin(), v3.end()));
	// Pointer + size
	int ar[6] = {1, 2, 3, 4, 4, 4};
	EXPECT_THAT(0, AllOfArray(ar, 0));
	EXPECT_THAT(1, AllOfArray(ar, 1));
	EXPECT_THAT(2, Not(AllOfArray(ar, 1)));
	EXPECT_THAT(3, Not(AllOfArray(ar + 1, 3)));
	EXPECT_THAT(4, AllOfArray(ar + 3, 3));
	// Array
	// int ar0[0]; Not usable
	int ar1[1] = {1};
	int ar2[2] = {2, 3};
	int ar3[3] = {4, 4, 4};
	// EXPECT_THAT(0, Not(AllOfArray(ar0))); // Cannot work
	EXPECT_THAT(1, AllOfArray(ar1));
	EXPECT_THAT(2, Not(AllOfArray(ar1)));
	EXPECT_THAT(3, Not(AllOfArray(ar2)));
	EXPECT_THAT(4, AllOfArray(ar3));
	// Container
	EXPECT_THAT(0, AllOfArray(v0));
	EXPECT_THAT(1, AllOfArray(v1));
	EXPECT_THAT(2, Not(AllOfArray(v1)));
	EXPECT_THAT(3, Not(AllOfArray(v2)));
	EXPECT_THAT(4, AllOfArray(v3));
	// Initializer
	EXPECT_THAT(0, AllOfArray<int>({})); // Requires template arg.
	EXPECT_THAT(1, AllOfArray({1}));
	EXPECT_THAT(2, Not(AllOfArray({1})));
	EXPECT_THAT(3, Not(AllOfArray({2, 3})));
	EXPECT_THAT(4, AllOfArray({4, 4, 4}));
	}

	TEST(AllOfArrayTest, Matchers) {
	// vector
	std::vector<Matcher<int>> matchers{Ge(1), Lt(2)};
	EXPECT_THAT(0, Not(AllOfArray(matchers)));
	EXPECT_THAT(1, AllOfArray(matchers));
	EXPECT_THAT(2, Not(AllOfArray(matchers)));
	// initializer_list
	EXPECT_THAT(0, Not(AllOfArray({Ge(0), Ge(1)})));
	EXPECT_THAT(1, AllOfArray({Ge(0), Ge(1)}));
	}

	TEST(AnyOfArrayTest, BasicForms) {
	// Iterator
	std::vector<int> v0{};
	std::vector<int> v1{1};
	std::vector<int> v2{2, 3};
	EXPECT_THAT(0, Not(AnyOfArray(v0.begin(), v0.end())));
	EXPECT_THAT(1, AnyOfArray(v1.begin(), v1.end()));
	EXPECT_THAT(2, Not(AnyOfArray(v1.begin(), v1.end())));
	EXPECT_THAT(3, AnyOfArray(v2.begin(), v2.end()));
	EXPECT_THAT(4, Not(AnyOfArray(v2.begin(), v2.end())));
	// Pointer + size
	int ar[3] = {1, 2, 3};
	EXPECT_THAT(0, Not(AnyOfArray(ar, 0)));
	EXPECT_THAT(1, AnyOfArray(ar, 1));
	EXPECT_THAT(2, Not(AnyOfArray(ar, 1)));
	EXPECT_THAT(3, AnyOfArray(ar + 1, 2));
	EXPECT_THAT(4, Not(AnyOfArray(ar + 1, 2)));
	// Array
	// int ar0[0]; Not usable
	int ar1[1] = {1};
	int ar2[2] = {2, 3};
	// EXPECT_THAT(0, Not(AnyOfArray(ar0))); // Cannot work
	EXPECT_THAT(1, AnyOfArray(ar1));
	EXPECT_THAT(2, Not(AnyOfArray(ar1)));
	EXPECT_THAT(3, AnyOfArray(ar2));
	EXPECT_THAT(4, Not(AnyOfArray(ar2)));
	// Container
	EXPECT_THAT(0, Not(AnyOfArray(v0)));
	EXPECT_THAT(1, AnyOfArray(v1));
	EXPECT_THAT(2, Not(AnyOfArray(v1)));
	EXPECT_THAT(3, AnyOfArray(v2));
	EXPECT_THAT(4, Not(AnyOfArray(v2)));
	// Initializer
	EXPECT_THAT(0, Not(AnyOfArray<int>({}))); // Requires template arg.
	EXPECT_THAT(1, AnyOfArray({1}));
	EXPECT_THAT(2, Not(AnyOfArray({1})));
	EXPECT_THAT(3, AnyOfArray({2, 3}));
	EXPECT_THAT(4, Not(AnyOfArray({2, 3})));
	}

	TEST(AnyOfArrayTest, Matchers) {
	// We negate test AllOfArrayTest.Matchers.
	// vector
	std::vector<Matcher<int>> matchers{Lt(1), Ge(2)};
	EXPECT_THAT(0, AnyOfArray(matchers));
	EXPECT_THAT(1, Not(AnyOfArray(matchers)));
	EXPECT_THAT(2, AnyOfArray(matchers));
	// initializer_list
	EXPECT_THAT(0, AnyOfArray({Lt(0), Lt(1)}));
	EXPECT_THAT(1, Not(AllOfArray({Lt(0), Lt(1)})));
	}

	TEST(AnyOfArrayTest, ExplainsMatchResultCorrectly) {
	// AnyOfArray and AllOfArry use the same underlying template-template,
	// thus it is sufficient to test one here.
	const std::vector<int> v0{};
	const std::vector<int> v1{1};
	const std::vector<int> v2{2, 3};
	const Matcher<int> m0 = AnyOfArray(v0);
	const Matcher<int> m1 = AnyOfArray(v1);
	const Matcher<int> m2 = AnyOfArray(v2);
	EXPECT_EQ("", Explain(m0, 0));
	EXPECT_EQ("", Explain(m1, 1));
	EXPECT_EQ("", Explain(m1, 2));
	EXPECT_EQ("", Explain(m2, 3));
	EXPECT_EQ("", Explain(m2, 4));
	EXPECT_EQ("()", Describe(m0));
	EXPECT_EQ("(is equal to 1)", Describe(m1));
	EXPECT_EQ("(is equal to 2) or (is equal to 3)", Describe(m2));
	EXPECT_EQ("()", DescribeNegation(m0));
	EXPECT_EQ("(isn't equal to 1)", DescribeNegation(m1));
	EXPECT_EQ("(isn't equal to 2) and (isn't equal to 3)", DescribeNegation(m2));
	// Explain with matchers
	const Matcher<int> g1 = AnyOfArray({GreaterThan(1)});
	const Matcher<int> g2 = AnyOfArray({GreaterThan(1), GreaterThan(2)});
	// Explains the first positiv match and all prior negative matches...
	EXPECT_EQ("which is 1 less than 1", Explain(g1, 0));
	EXPECT_EQ("which is the same as 1", Explain(g1, 1));
	EXPECT_EQ("which is 1 more than 1", Explain(g1, 2));
	EXPECT_EQ("which is 1 less than 1, and which is 2 less than 2",
	Explain(g2, 0));
	EXPECT_EQ("which is the same as 1, and which is 1 less than 2",
	Explain(g2, 1));
	EXPECT_EQ("which is 1 more than 1", // Only the first
	Explain(g2, 2));
	}

	TEST(AllOfTest, HugeMatcher) {
	// Verify that using AllOf with many arguments doesn't cause
	// the compiler to exceed template instantiation depth limit.
	EXPECT_THAT(0, testing::AllOf(_, _, _, _, _, _, _, _, _,
	testing::AllOf(_, _, _, _, _, _, _, _, _, _)));
	}

	TEST(AnyOfTest, HugeMatcher) {
	// Verify that using AnyOf with many arguments doesn't cause
	// the compiler to exceed template instantiation depth limit.
	EXPECT_THAT(0, testing::AnyOf(_, _, _, _, _, _, _, _, _,
	testing::AnyOf(_, _, _, _, _, _, _, _, _, _)));
	}

	namespace adl_test {

	// Verifies that the implementation of ::testing::AllOf and ::testing::AnyOf
	// don't issue unqualified recursive calls. If they do, the argument dependent
	// name lookup will cause AllOf/AnyOf in the 'adl_test' namespace to be found
	// as a candidate and the compilation will break due to an ambiguous overload.

	// The matcher must be in the same namespace as AllOf/AnyOf to make argument
	// dependent lookup find those.
	MATCHER(M, "") { return true; }

	template <typename T1, typename T2>
	bool AllOf(const T1& /t1/, const T2& /t2/) { return true; }

	TEST(AllOfTest, DoesNotCallAllOfUnqualified) {
	EXPECT_THAT(42, testing::AllOf(
	M(), M(), M(), M(), M(), M(), M(), M(), M(), M()));
	}

	template <typename T1, typename T2> bool
	AnyOf(const T1& t1, const T2& t2) { return true; }

	TEST(AnyOfTest, DoesNotCallAnyOfUnqualified) {
	EXPECT_THAT(42, testing::AnyOf(
	M(), M(), M(), M(), M(), M(), M(), M(), M(), M()));
	}

	} // namespace adl_test


	TEST(AllOfTest, WorksOnMoveOnlyType) {
	std::unique_ptr<int> p(new int(3));
	EXPECT_THAT(p, AllOf(Pointee(Eq(3)), Pointee(Gt(0)), Pointee(Lt(5))));
	EXPECT_THAT(p, Not(AllOf(Pointee(Eq(3)), Pointee(Gt(0)), Pointee(Lt(3)))));
	}

	TEST(AnyOfTest, WorksOnMoveOnlyType) {
	std::unique_ptr<int> p(new int(3));
	EXPECT_THAT(p, AnyOf(Pointee(Eq(5)), Pointee(Lt(0)), Pointee(Lt(5))));
	EXPECT_THAT(p, Not(AnyOf(Pointee(Eq(5)), Pointee(Lt(0)), Pointee(Gt(5)))));
	}

	MATCHER(IsNotNull, "") {
	return arg != nullptr;
	}

	// Verifies that a matcher defined using MATCHER() can work on
	// move-only types.
	TEST(MatcherMacroTest, WorksOnMoveOnlyType) {
	std::unique_ptr<int> p(new int(3));
	EXPECT_THAT(p, IsNotNull());
	EXPECT_THAT(std::unique_ptr<int>(), Not(IsNotNull()));
	}

	MATCHER_P(UniquePointee, pointee, "") {
	return *arg == pointee;
	}

	// Verifies that a matcher defined using MATCHER_P*() can work on
	// move-only types.
	TEST(MatcherPMacroTest, WorksOnMoveOnlyType) {
	std::unique_ptr<int> p(new int(3));
	EXPECT_THAT(p, UniquePointee(3));
	EXPECT_THAT(p, Not(UniquePointee(2)));
	}


	} // namespace

	#ifdef _MSC_VER
	# pragma warning(pop)
	#endif

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