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Generalize gmock-matchers_test to handle is_gtest_matcher-style matchers, too.

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PiperOrigin-RevId: 444586594
Change-Id: I0de9b40b3773e3047a492f050266967ea935ae3e
This commit is contained in:
Abseil Team 2022-04-26 09:48:24 -07:00 committed by Copybara-Service
parent 0498660ea5
commit 238e4745c6
5 changed files with 144 additions and 50 deletions
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8
googlemock/test/gmock-matchers-arithmetic_test.cc
View File

@ -429,6 +429,8 @@ void AllOfMatches(int num, const Matcher<int>& m) {
EXPECT_TRUE(m.Matches(num + 1));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(AllOfTest);
// Tests that AllOf(m1, ..., mn) matches any value that matches all of
// the given matchers.
TEST(AllOfTest, MatchesWhenAllMatch) {
@ -552,7 +554,7 @@ TEST(AllOfTest, AllOfMatcherSafelyCastsMonomorphicMatchers) {
Matcher<int&> m5 = AllOf(greater_than_5, less_than_10, less_than_10);
}
TEST(AllOfTest, ExplainsResult) {
TEST_P(AllOfTestP, ExplainsResult) {
Matcher<int> m;
// Successful match. Both matchers need to explain. The second
@ -616,6 +618,8 @@ static void AnyOfStringMatches(int num, const Matcher<std::string>& m) {
EXPECT_FALSE(m.Matches(std::to_string(num + 1)));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(AnyOfTest);
// Tests that AnyOf(m1, ..., mn) matches any value that matches at
// least one of the given matchers.
TEST(AnyOfTest, MatchesWhenAnyMatches) {
@ -766,7 +770,7 @@ TEST(AnyOfTest, AnyOfMatcherSafelyCastsMonomorphicMatchers) {
Matcher<int&> m5 = AnyOf(greater_than_5, less_than_10, less_than_10);
}
TEST(AnyOfTest, ExplainsResult) {
TEST_P(AnyOfTestP, ExplainsResult) {
Matcher<int> m;
// Failed match. Both matchers need to explain. The second

52
googlemock/test/gmock-matchers-comparisons_test.cc
View File

@ -45,7 +45,9 @@ namespace testing {
namespace gmock_matchers_test {
namespace {
TEST(MonotonicMatcherTest, IsPrintable) {
INSTANTIATE_GTEST_MATCHER_TEST_P(MonotonicMatcherTest);
TEST_P(MonotonicMatcherTestP, IsPrintable) {
stringstream ss;
ss << GreaterThan(5);
EXPECT_EQ("is > 5", ss.str());
@ -130,6 +132,8 @@ TEST(MatcherInterfaceTest, CanBeImplementedUsingNewAPI) {
EXPECT_EQ("value % 2 == 1", Explain(m, 3));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(MatcherTest);
// Tests default-constructing a matcher.
TEST(MatcherTest, CanBeDefaultConstructed) { Matcher<double> m; }
@ -192,7 +196,7 @@ TEST(MatcherTest, CanDescribeItself) {
}
// Tests Matcher<T>::MatchAndExplain().
TEST(MatcherTest, MatchAndExplain) {
TEST_P(MatcherTestP, MatchAndExplain) {
Matcher<int> m = GreaterThan(0);
StringMatchResultListener listener1;
EXPECT_TRUE(m.MatchAndExplain(42, &listener1));
@ -376,11 +380,18 @@ TEST(MakePolymorphicMatcherTest, ConstructsMatcherUsingNewAPI) {
EXPECT_EQ("% 2 == 0", Explain(m2, '\x42'));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(MatcherCastTest);
// Tests that MatcherCast<T>(m) works when m is a polymorphic matcher.
TEST(MatcherCastTest, FromPolymorphicMatcher) {
Matcher<int> m = MatcherCast<int>(Eq(5));
EXPECT_TRUE(m.Matches(5));
EXPECT_FALSE(m.Matches(6));
TEST_P(MatcherCastTestP, FromPolymorphicMatcher) {
Matcher<int16_t> m;
if (use_gtest_matcher_) {
m = MatcherCast<int16_t>(GtestGreaterThan(int64_t{5}));
} else {
m = MatcherCast<int16_t>(Gt(int64_t{5}));
}
EXPECT_TRUE(m.Matches(6));
EXPECT_FALSE(m.Matches(4));
}
// For testing casting matchers between compatible types.
@ -591,10 +602,17 @@ class Derived : public Base {
class OtherDerived : public Base {};
INSTANTIATE_GTEST_MATCHER_TEST_P(SafeMatcherCastTest);
// Tests that SafeMatcherCast<T>(m) works when m is a polymorphic matcher.
TEST(SafeMatcherCastTest, FromPolymorphicMatcher) {
Matcher<char> m2 = SafeMatcherCast<char>(Eq(32));
EXPECT_TRUE(m2.Matches(' '));
TEST_P(SafeMatcherCastTestP, FromPolymorphicMatcher) {
Matcher<char> m2;
if (use_gtest_matcher_) {
m2 = SafeMatcherCast<char>(GtestGreaterThan(32));
} else {
m2 = SafeMatcherCast<char>(Gt(32));
}
EXPECT_TRUE(m2.Matches('A'));
EXPECT_FALSE(m2.Matches('\n'));
}
@ -1319,13 +1337,15 @@ TEST(HasSubstrTest, CanDescribeSelf) {
EXPECT_EQ("has substring \"foo\\n\\\"\"", Describe(m));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(KeyTest);
TEST(KeyTest, CanDescribeSelf) {
Matcher<const pair<std::string, int>&> m = Key("foo");
EXPECT_EQ("has a key that is equal to \"foo\"", Describe(m));
EXPECT_EQ("doesn't have a key that is equal to \"foo\"", DescribeNegation(m));
}
TEST(KeyTest, ExplainsResult) {
TEST_P(KeyTestP, ExplainsResult) {
Matcher<pair<int, bool>> m = Key(GreaterThan(10));
EXPECT_EQ("whose first field is a value which is 5 less than 10",
Explain(m, make_pair(5, true)));
@ -1346,6 +1366,8 @@ TEST(KeyTest, WorksWithMoveOnly) {
EXPECT_THAT(p, Key(Eq(nullptr)));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(PairTest);
template <size_t I>
struct Tag {};
@ -1434,7 +1456,7 @@ TEST(PairTest, CanDescribeSelf) {
DescribeNegation(m2));
}
TEST(PairTest, CanExplainMatchResultTo) {
TEST_P(PairTestP, CanExplainMatchResultTo) {
// If neither field matches, Pair() should explain about the first
// field.
const Matcher<pair<int, int>> m = Pair(GreaterThan(0), GreaterThan(0));
@ -1522,6 +1544,8 @@ TEST(PairTest, InsideContainsUsingMap) {
EXPECT_THAT(container, Not(Contains(Pair(3, _))));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(FieldsAreTest);
TEST(FieldsAreTest, MatchesCorrectly) {
std::tuple<int, std::string, double> p(25, "foo", .5);
@ -1547,7 +1571,7 @@ TEST(FieldsAreTest, CanDescribeSelf) {
DescribeNegation(m1));
}
TEST(FieldsAreTest, CanExplainMatchResultTo) {
TEST_P(FieldsAreTestP, CanExplainMatchResultTo) {
// The first one that fails is the one that gives the error.
Matcher<std::tuple<int, int, int>> m =
FieldsAre(GreaterThan(0), GreaterThan(0), GreaterThan(0));
@ -2261,7 +2285,9 @@ TEST(ExplainMatchResultTest, AllOf_True_True_2) {
EXPECT_EQ("", Explain(m, 2));
}
TEST(ExplainmatcherResultTest, MonomorphicMatcher) {
INSTANTIATE_GTEST_MATCHER_TEST_P(ExplainmatcherResultTest);
TEST_P(ExplainmatcherResultTestP, MonomorphicMatcher) {
const Matcher<int> m = GreaterThan(5);
EXPECT_EQ("which is 1 more than 5", Explain(m, 6));
}

52
googlemock/test/gmock-matchers-containers_test.cc
View File

@ -65,6 +65,8 @@ TEST(ContainsTest, WorksWithMoveOnly) {
helper.Call(MakeUniquePtrs({1, 2}));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(ElementsAreTest);
// Tests the variadic version of the ElementsAreMatcher
TEST(ElementsAreTest, HugeMatcher) {
vector<int> test_vector{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
@ -280,6 +282,8 @@ class ConstPropagatingPtr {
T* val_;
};
INSTANTIATE_GTEST_MATCHER_TEST_P(PointeeTest);
TEST(PointeeTest, WorksWithConstPropagatingPointers) {
const Matcher<ConstPropagatingPtr<int>> m = Pointee(Lt(5));
int three = 3;
@ -314,7 +318,7 @@ TEST(PointeeTest, CanDescribeSelf) {
EXPECT_EQ("does not point to a value that is > 3", DescribeNegation(m));
}
TEST(PointeeTest, CanExplainMatchResult) {
TEST_P(PointeeTestP, CanExplainMatchResult) {
const Matcher<const std::string*> m = Pointee(StartsWith("Hi"));
EXPECT_EQ("", Explain(m, static_cast<const std::string*>(nullptr)));
@ -370,6 +374,8 @@ struct DerivedStruct : public AStruct {
char ch;
};
INSTANTIATE_GTEST_MATCHER_TEST_P(FieldTest);
// Tests that Field(&Foo::field, ...) works when field is non-const.
TEST(FieldTest, WorksForNonConstField) {
Matcher<AStruct> m = Field(&AStruct::x, Ge(0));
@ -476,7 +482,7 @@ TEST(FieldTest, CanDescribeSelfWithFieldName) {
}
// Tests that Field() can explain the match result.
TEST(FieldTest, CanExplainMatchResult) {
TEST_P(FieldTestP, CanExplainMatchResult) {
Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0));
AStruct a;
@ -489,7 +495,7 @@ TEST(FieldTest, CanExplainMatchResult) {
Explain(m, a));
}
TEST(FieldTest, CanExplainMatchResultWithFieldName) {
TEST_P(FieldTestP, CanExplainMatchResultWithFieldName) {
Matcher<const AStruct&> m = Field("field_name", &AStruct::x, Ge(0));
AStruct a;
@ -502,6 +508,8 @@ TEST(FieldTest, CanExplainMatchResultWithFieldName) {
Explain(m, a));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(FieldForPointerTest);
// Tests that Field() works when the argument is a pointer to const.
TEST(FieldForPointerTest, WorksForPointerToConst) {
Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0));
@ -568,7 +576,7 @@ TEST(FieldForPointerTest, CanDescribeSelfWithFieldName) {
}
// Tests that Field() can explain the result of matching a pointer.
TEST(FieldForPointerTest, CanExplainMatchResult) {
TEST_P(FieldForPointerTestP, CanExplainMatchResult) {
Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0));
AStruct a;
@ -583,7 +591,7 @@ TEST(FieldForPointerTest, CanExplainMatchResult) {
Explain(m, &a));
}
TEST(FieldForPointerTest, CanExplainMatchResultWithFieldName) {
TEST_P(FieldForPointerTestP, CanExplainMatchResultWithFieldName) {
Matcher<const AStruct*> m = Field("field_name", &AStruct::x, Ge(0));
AStruct a;
@ -637,6 +645,8 @@ class DerivedClass : public AClass {
int k_;
};
INSTANTIATE_GTEST_MATCHER_TEST_P(PropertyTest);
// Tests that Property(&Foo::property, ...) works when property()
// returns a non-reference.
TEST(PropertyTest, WorksForNonReferenceProperty) {
@ -763,7 +773,7 @@ TEST(PropertyTest, CanDescribeSelfWithPropertyName) {
}
// Tests that Property() can explain the match result.
TEST(PropertyTest, CanExplainMatchResult) {
TEST_P(PropertyTestP, CanExplainMatchResult) {
Matcher<const AClass&> m = Property(&AClass::n, Ge(0));
AClass a;
@ -776,7 +786,7 @@ TEST(PropertyTest, CanExplainMatchResult) {
Explain(m, a));
}
TEST(PropertyTest, CanExplainMatchResultWithPropertyName) {
TEST_P(PropertyTestP, CanExplainMatchResultWithPropertyName) {
Matcher<const AClass&> m = Property("fancy_name", &AClass::n, Ge(0));
AClass a;
@ -789,6 +799,8 @@ TEST(PropertyTest, CanExplainMatchResultWithPropertyName) {
Explain(m, a));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(PropertyForPointerTest);
// Tests that Property() works when the argument is a pointer to const.
TEST(PropertyForPointerTest, WorksForPointerToConst) {
Matcher<const AClass*> m = Property(&AClass::n, Ge(0));
@ -865,7 +877,7 @@ TEST(PropertyForPointerTest, CanDescribeSelfWithPropertyDescription) {
}
// Tests that Property() can explain the result of matching a pointer.
TEST(PropertyForPointerTest, CanExplainMatchResult) {
TEST_P(PropertyForPointerTestP, CanExplainMatchResult) {
Matcher<const AClass*> m = Property(&AClass::n, Ge(0));
AClass a;
@ -881,7 +893,7 @@ TEST(PropertyForPointerTest, CanExplainMatchResult) {
Explain(m, &a));
}
TEST(PropertyForPointerTest, CanExplainMatchResultWithPropertyName) {
TEST_P(PropertyForPointerTestP, CanExplainMatchResultWithPropertyName) {
Matcher<const AClass*> m = Property("fancy_name", &AClass::n, Ge(0));
AClass a;
@ -905,6 +917,8 @@ std::string IntToStringFunction(int input) {
return input == 1 ? "foo" : "bar";
}
INSTANTIATE_GTEST_MATCHER_TEST_P(ResultOfTest);
TEST(ResultOfTest, WorksForFunctionPointers) {
Matcher<int> matcher = ResultOf(&IntToStringFunction, Eq(std::string("foo")));
@ -939,7 +953,7 @@ TEST(ResultOfTest, CanDescribeItselfWithResultDescription) {
// Tests that ResultOf() can explain the match result.
int IntFunction(int input) { return input == 42 ? 80 : 90; }
TEST(ResultOfTest, CanExplainMatchResult) {
TEST_P(ResultOfTestP, CanExplainMatchResult) {
Matcher<int> matcher = ResultOf(&IntFunction, Ge(85));
EXPECT_EQ("which is mapped by the given callable to 90" + OfType("int"),
Explain(matcher, 36));
@ -950,7 +964,7 @@ TEST(ResultOfTest, CanExplainMatchResult) {
Explain(matcher, 36));
}
TEST(ResultOfTest, CanExplainMatchResultWithResultDescription) {
TEST_P(ResultOfTestP, CanExplainMatchResultWithResultDescription) {
Matcher<int> matcher = ResultOf("magic int conversion", &IntFunction, Ge(85));
EXPECT_EQ("whose magic int conversion is 90" + OfType("int"),
Explain(matcher, 36));
@ -1408,6 +1422,8 @@ TEST(StreamlikeTest, Iteration) {
}
}
INSTANTIATE_GTEST_MATCHER_TEST_P(BeginEndDistanceIsTest);
TEST(BeginEndDistanceIsTest, WorksWithForwardList) {
std::forward_list<int> container;
EXPECT_THAT(container, BeginEndDistanceIs(0));
@ -1439,7 +1455,7 @@ TEST(BeginEndDistanceIsTest, WorksWithMoveOnly) {
helper.Call(MakeUniquePtrs({1, 2}));
}
TEST(BeginEndDistanceIsTest, ExplainsResult) {
TEST_P(BeginEndDistanceIsTestP, ExplainsResult) {
Matcher<vector<int>> m1 = BeginEndDistanceIs(2);
Matcher<vector<int>> m2 = BeginEndDistanceIs(Lt(2));
Matcher<vector<int>> m3 = BeginEndDistanceIs(AnyOf(0, 3));
@ -2103,7 +2119,9 @@ TEST_F(UnorderedElementsAreTest, DescribeNegation) {
// Tests Each().
TEST(EachTest, ExplainsMatchResultCorrectly) {
INSTANTIATE_GTEST_MATCHER_TEST_P(EachTest);
TEST_P(EachTestP, ExplainsMatchResultCorrectly) {
set<int> a; // empty
Matcher<set<int>> m = Each(2);
@ -2594,7 +2612,7 @@ TEST(ElementsAreTest, DoesNotExplainTrivialMatch) {
EXPECT_EQ("", Explain(m, test_list)); // No need to explain anything.
}
TEST(ElementsAreTest, ExplainsNonTrivialMatch) {
TEST_P(ElementsAreTestP, ExplainsNonTrivialMatch) {
Matcher<const vector<int>&> m =
ElementsAre(GreaterThan(1), 0, GreaterThan(2));
@ -2617,7 +2635,7 @@ TEST(ElementsAreTest, CanExplainMismatchWrongSize) {
EXPECT_EQ("which has 1 element", Explain(m, test_list));
}
TEST(ElementsAreTest, CanExplainMismatchRightSize) {
TEST_P(ElementsAreTestP, CanExplainMismatchRightSize) {
Matcher<const vector<int>&> m = ElementsAre(1, GreaterThan(5));
vector<int> v;
@ -2970,6 +2988,8 @@ TEST(ElementsAreArrayTest, SourceLifeSpan) {
// Tests Contains().
INSTANTIATE_GTEST_MATCHER_TEST_P(ContainsTest);
TEST(ContainsTest, ListMatchesWhenElementIsInContainer) {
list<int> some_list;
some_list.push_back(3);
@ -3023,7 +3043,7 @@ TEST(ContainsTest, SetDoesNotMatchWhenElementIsNotInContainer) {
EXPECT_THAT(c_string_set, Not(Contains(std::string("goodbye"))));
}
TEST(ContainsTest, ExplainsMatchResultCorrectly) {
TEST_P(ContainsTestP, ExplainsMatchResultCorrectly) {
const int a[2] = {1, 2};
Matcher<const int(&)[2]> m = Contains(2);
EXPECT_EQ("whose element #1 matches", Explain(m, a));

12
googlemock/test/gmock-matchers-misc_test.cc
View File

@ -637,7 +637,9 @@ TEST(FormatMatcherDescriptionTest, WorksForEmptyDescription) {
FormatMatcherDescription(false, "IsInRange", {"a", "b"}, {"5", "8"}));
}
TEST(MatcherTupleTest, ExplainsMatchFailure) {
INSTANTIATE_GTEST_MATCHER_TEST_P(MatcherTupleTest);
TEST_P(MatcherTupleTestP, ExplainsMatchFailure) {
stringstream ss1;
ExplainMatchFailureTupleTo(
std::make_tuple(Matcher<char>(Eq('a')), GreaterThan(5)),
@ -1378,6 +1380,8 @@ TEST(MatcherPnMacroTest, CanUseMatcherTypedParameterInValue) {
// Tests Contains().Times().
INSTANTIATE_GTEST_MATCHER_TEST_P(ContainsTimes);
TEST(ContainsTimes, ListMatchesWhenElementQuantityMatches) {
list<int> some_list;
some_list.push_back(3);
@ -1397,7 +1401,7 @@ TEST(ContainsTimes, ListMatchesWhenElementQuantityMatches) {
EXPECT_THAT(list<int>{}, Not(Contains(_)));
}
TEST(ContainsTimes, ExplainsMatchResultCorrectly) {
TEST_P(ContainsTimesP, ExplainsMatchResultCorrectly) {
const int a[2] = {1, 2};
Matcher<const int(&)[2]> m = Contains(2).Times(3);
EXPECT_EQ(
@ -1502,6 +1506,8 @@ TEST(AllOfArrayTest, Matchers) {
EXPECT_THAT(1, AllOfArray({Ge(0), Ge(1)}));
}
INSTANTIATE_GTEST_MATCHER_TEST_P(AnyOfArrayTest);
TEST(AnyOfArrayTest, BasicForms) {
// Iterator
std::vector<int> v0{};
@ -1554,7 +1560,7 @@ TEST(AnyOfArrayTest, Matchers) {
EXPECT_THAT(1, Not(AllOfArray({Lt(0), Lt(1)})));
}
TEST(AnyOfArrayTest, ExplainsMatchResultCorrectly) {
TEST_P(AnyOfArrayTestP, ExplainsMatchResultCorrectly) {
// AnyOfArray and AllOfArry use the same underlying template-template,
// thus it is sufficient to test one here.
const std::vector<int> v0{};

70
googlemock/test/gmock-matchers_test.h
View File

@ -100,34 +100,72 @@ struct ContainerHelper {
};
// For testing ExplainMatchResultTo().
template <typename T = int>
class GreaterThanMatcher : public MatcherInterface<T> {
public:
explicit GreaterThanMatcher(T rhs) : rhs_(rhs) {}
template <typename T>
struct GtestGreaterThanMatcher {
using is_gtest_matcher = void;
void DescribeTo(ostream* os) const override { *os << "is > " << rhs_; }
void DescribeTo(ostream* os) const { *os << "is > " << rhs; }
void DescribeNegationTo(ostream* os) const { *os << "is <= " << rhs; }
bool MatchAndExplain(T lhs, MatchResultListener* listener) const override {
if (lhs > rhs_) {
*listener << "which is " << (lhs - rhs_) << " more than " << rhs_;
} else if (lhs == rhs_) {
*listener << "which is the same as " << rhs_;
bool MatchAndExplain(T lhs, MatchResultListener* listener) const {
if (lhs > rhs) {
*listener << "which is " << (lhs - rhs) << " more than " << rhs;
} else if (lhs == rhs) {
*listener << "which is the same as " << rhs;
} else {
*listener << "which is " << (rhs_ - lhs) << " less than " << rhs_;
*listener << "which is " << (rhs - lhs) << " less than " << rhs;
}
return lhs > rhs_;
return lhs > rhs;
}
private:
const T rhs_;
T rhs;
};
template <typename T>
Matcher<T> GreaterThan(T n) {
return MakeMatcher(new GreaterThanMatcher<T>(n));
GtestGreaterThanMatcher<typename std::decay<T>::type> GtestGreaterThan(
T&& rhs) {
return {rhs};
}
// As the matcher above, but using the base class with virtual functions.
template <typename T>
class GreaterThanMatcher : public MatcherInterface<T> {
public:
explicit GreaterThanMatcher(T rhs) : impl_{rhs} {}
void DescribeTo(ostream* os) const override { impl_.DescribeTo(os); }
void DescribeNegationTo(ostream* os) const override {
impl_.DescribeNegationTo(os);
}
bool MatchAndExplain(T lhs, MatchResultListener* listener) const override {
return impl_.MatchAndExplain(lhs, listener);
}
private:
const GtestGreaterThanMatcher<T> impl_;
};
// Names and instantiates a new instance of GTestMatcherTestP.
#define INSTANTIATE_GTEST_MATCHER_TEST_P(TestSuite) \
using TestSuite##P = GTestMatcherTestP; \
INSTANTIATE_TEST_SUITE_P(MatcherInterface, TestSuite##P, Values(false)); \
INSTANTIATE_TEST_SUITE_P(GtestMatcher, TestSuite##P, Values(true))
class GTestMatcherTestP : public testing::TestWithParam<bool> {
public:
template <typename T>
Matcher<T> GreaterThan(T n) {
if (use_gtest_matcher_) {
return GtestGreaterThan(n);
} else {
return MakeMatcher(new GreaterThanMatcher<T>(n));
}
}
const bool use_gtest_matcher_ = GetParam();
};
// Returns the description of the given matcher.
template <typename T>
std::string Describe(const Matcher<T>& m) {