Function ResultWith

cpp/src/arrow/testing/matchers.h:320–322

// Returns a matcher that matches the value of a successful Result<T>.
template <typename ValueMatcher>
ResultMatcher<ValueMatcher> ResultWith(const ValueMatcher& value_matcher) {
  return ResultMatcher<ValueMatcher>(value_matcher);
}

// Returns a matcher that matches an ok Status or Result<T>.
inline OkMatcher Ok() { return {}; }