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Use ResultOf()'s result_description when explaining match result.

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PiperOrigin-RevId: 439389646
Change-Id: Ie34adcdd2b24378e85962efac53b7bb89ed93803
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Abseil Team 2022-04-04 12:55:29 -07:00 committed by Copybara-Service
parent 25dcdc7e8b
commit 3ffa237f0e
2 changed files with 16 additions and 1 deletions
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6
googlemock/include/gmock/gmock-matchers.h
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@ -2258,7 +2258,11 @@ class ResultOfMatcher {
} }
bool MatchAndExplain(T obj, MatchResultListener* listener) const override { bool MatchAndExplain(T obj, MatchResultListener* listener) const override {
*listener << "which is mapped by the given callable to "; if (result_description_.empty()) {
*listener << "which is mapped by the given callable to ";
} else {
*listener << "whose " << result_description_ << " is ";
}
// Cannot pass the return value directly to MatchPrintAndExplain, which // Cannot pass the return value directly to MatchPrintAndExplain, which
// takes a non-const reference as argument. // takes a non-const reference as argument.
// Also, specifying template argument explicitly is needed because T could // Also, specifying template argument explicitly is needed because T could

11
googlemock/test/gmock-matchers-containers_test.cc
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@ -949,6 +949,17 @@ TEST(ResultOfTest, CanExplainMatchResult) {
Explain(matcher, 36)); Explain(matcher, 36));
} }
TEST(ResultOfTest, CanExplainMatchResultWithResultDescription) {
Matcher<int> matcher = ResultOf("magic int conversion", &IntFunction, Ge(85));
EXPECT_EQ("whose magic int conversion is 90" + OfType("int"),
Explain(matcher, 36));
matcher = ResultOf("magic int conversion", &IntFunction, GreaterThan(85));
EXPECT_EQ("whose magic int conversion is 90" + OfType("int") +
", which is 5 more than 85",
Explain(matcher, 36));
}
// Tests that ResultOf(f, ...) compiles and works as expected when f(x) // Tests that ResultOf(f, ...) compiles and works as expected when f(x)
// returns a non-reference. // returns a non-reference.
TEST(ResultOfTest, WorksForNonReferenceResults) { TEST(ResultOfTest, WorksForNonReferenceResults) {