Method ExtractSummary

tests/gtest/gtest-all.cc:11585–11588

Gets the summary of the failure message by omitting the stack trace in it.

// Gets the summary of the failure message by omitting the stack trace
// in it.
std::string TestPartResult::ExtractSummary(const char* message) {
  const char* const stack_trace = strstr(message, internal::kStackTraceMarker);
  return stack_trace == nullptr ? message : std::string(message, stack_trace);
}

// Prints a TestPartResult object.
std::ostream& operator<<(std::ostream& os, const TestPartResult& result) {