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rollback of 224929783

PiperOrigin-RevId: 225008559
This commit is contained in:
misterg 2018-12-11 11:35:25 -05:00 committed by Gennadiy Civil
parent 06bb8d4d6d
commit 6cbd3753dc
2 changed files with 7 additions and 96 deletions
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14
googlemock/include/gmock/gmock-matchers.h
View File

@ -1296,24 +1296,14 @@ class PredicateFormatterFromMatcher {
// We don't write MatcherCast<const T&> either, as that allows
// potentially unsafe downcasting of the matcher argument.
const Matcher<const T&> matcher = SafeMatcherCast<const T&>(matcher_);
// The expected path here is that the matcher should match (i.e. that most
// tests pass) so optimize for this case.
if (matcher.Matches(x)) {
StringMatchResultListener listener;
if (MatchPrintAndExplain(x, matcher, &listener))
return AssertionSuccess();
}
::std::stringstream ss;
ss << "Value of: " << value_text << "\n"
<< "Expected: ";
matcher.DescribeTo(&ss);
// Rerun the matcher to "PrintAndExain" the failure.
StringMatchResultListener listener;
if (MatchPrintAndExplain(x, matcher, &listener)) {
ss << "\n The matcher failed on the initial attempt; but passed when "
"rerun to generate the explanation.";
}
ss << "\n Actual: " << listener.str();
return AssertionFailure() << ss.str();
}

89
googlemock/test/gmock-matchers_test.cc
View File

@ -85,7 +85,6 @@ using std::pair;
using std::set;
using std::stringstream;
using std::vector;
using testing::_;
using testing::A;
using testing::AllArgs;
using testing::AllOf;
@ -111,12 +110,12 @@ using testing::Le;
using testing::Lt;
using testing::MakeMatcher;
using testing::MakePolymorphicMatcher;
using testing::MatchResultListener;
using testing::Matcher;
using testing::MatcherCast;
using testing::MatcherInterface;
using testing::Matches;
using testing::MatchesRegex;
using testing::MatchResultListener;
using testing::NanSensitiveDoubleEq;
using testing::NanSensitiveDoubleNear;
using testing::NanSensitiveFloatEq;
@ -136,14 +135,15 @@ using testing::StartsWith;
using testing::StrCaseEq;
using testing::StrCaseNe;
using testing::StrEq;
using testing::StringMatchResultListener;
using testing::StrNe;
using testing::StringMatchResultListener;
using testing::Truly;
using testing::TypedEq;
using testing::UnorderedPointwise;
using testing::Value;
using testing::WhenSorted;
using testing::WhenSortedBy;
using testing::_;
using testing::internal::DummyMatchResultListener;
using testing::internal::ElementMatcherPair;
using testing::internal::ElementMatcherPairs;
@ -152,11 +152,10 @@ using testing::internal::FloatingEqMatcher;
using testing::internal::FormatMatcherDescription;
using testing::internal::IsReadableTypeName;
using testing::internal::MatchMatrix;
using testing::internal::PredicateFormatterFromMatcher;
using testing::internal::RE;
using testing::internal::StreamMatchResultListener;
using testing::internal::string;
using testing::internal::Strings;
using testing::internal::string;
// For testing ExplainMatchResultTo().
class GreaterThanMatcher : public MatcherInterface<int> {
@ -4933,7 +4932,7 @@ TYPED_TEST(ContainerEqTest, DuplicateDifference) {
}
#endif // GTEST_HAS_TYPED_TEST
// Tests that multiple missing values are reported.
// Tests that mutliple missing values are reported.
// Using just vector here, so order is predictable.
TEST(ContainerEqExtraTest, MultipleValuesMissing) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
@ -6911,84 +6910,6 @@ TEST(ArgsTest, ExplainsMatchResultWithInnerExplanation) {
Explain(m, std::make_tuple('\0', 42, 43)));
}
class PredicateFormatterFromMatcherTest : public ::testing::Test {
protected:
enum Behavior { kInitialSuccess, kAlwaysFail, kFlaky };
// A matcher that can return different results when used multiple times on the
// same input. No real matcher should do this; but this lets us test that we
// detect such behavior and fail appropriately.
class MockMatcher : public MatcherInterface<Behavior> {
public:
bool MatchAndExplain(Behavior behavior,
MatchResultListener* listener) const override {
*listener << "[MatchAndExplain]";
switch (behavior) {
case kInitialSuccess:
// The first call to MatchAndExplain should use a "not interested"
// listener; so this is expected to return |true|. There should be no
// subsequent calls.
return !listener->IsInterested();
case kAlwaysFail:
return false;
case kFlaky:
// The first call to MatchAndExplain should use a "not interested"
// listener; so this will return |false|. Subsequent calls should have
// an "interested" listener; so this will return |true|, thus
// simulating a flaky matcher.
return listener->IsInterested();
}
}
void DescribeTo(ostream* os) const override { *os << "[DescribeTo]"; }
void DescribeNegationTo(ostream* os) const override {
*os << "[DescribeNegationTo]";
}
};
AssertionResult RunPredicateFormatter(Behavior behavior) {
auto matcher = MakeMatcher(new MockMatcher);
PredicateFormatterFromMatcher<Matcher<Behavior>> predicate_formatter(
matcher);
return predicate_formatter("dummy-name", behavior);
}
const std::string kMatcherType =
"testing::gmock_matchers_test::PredicateFormatterFromMatcherTest::"
"Behavior";
};
TEST_F(PredicateFormatterFromMatcherTest, ShortCircuitOnSuccess) {
AssertionResult result = RunPredicateFormatter(kInitialSuccess);
EXPECT_TRUE(result); // Implicit cast to bool.
EXPECT_EQ("", result.message());
}
TEST_F(PredicateFormatterFromMatcherTest, NoShortCircuitOnFailure) {
AssertionResult result = RunPredicateFormatter(kAlwaysFail);
EXPECT_FALSE(result); // Implicit cast to bool.
std::string expect =
"Value of: dummy-name\nExpected: [DescribeTo]\n"
" Actual: 1" +
OfType(kMatcherType) + ", [MatchAndExplain]";
EXPECT_EQ(expect, result.message());
}
TEST_F(PredicateFormatterFromMatcherTest, DetectsFlakyShortCircuit) {
AssertionResult result = RunPredicateFormatter(kFlaky);
EXPECT_FALSE(result); // Implicit cast to bool.
std::string expect =
"Value of: dummy-name\nExpected: [DescribeTo]\n"
" The matcher failed on the initial attempt; but passed when rerun to "
"generate the explanation.\n"
" Actual: 2" +
OfType(kMatcherType) + ", [MatchAndExplain]";
EXPECT_EQ(expect, result.message());
}
} // namespace gmock_matchers_test
} // namespace testing