type HaveHTTPStatusMatcher … func (matcher *HaveHTTPStatusMatcher) Match(actual interface{ … } func (matcher *HaveHTTPStatusMatcher) FailureMessage(actual interface{ … } func (matcher *HaveHTTPStatusMatcher) NegatedFailureMessage(actual interface{ … } func (matcher *HaveHTTPStatusMatcher) expectedString() string { … } func formatHttpResponse(input interface{ … }