diff options
Diffstat (limited to 'googlemock/include')
-rw-r--r-- | googlemock/include/gmock/gmock-matchers.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h index b859f1a..68278be 100644 --- a/googlemock/include/gmock/gmock-matchers.h +++ b/googlemock/include/gmock/gmock-matchers.h @@ -1296,14 +1296,24 @@ 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_); - StringMatchResultListener listener; - if (MatchPrintAndExplain(x, matcher, &listener)) + + // 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)) { 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(); } |