Review why 2 responses coming back in http response test weren't equal about mocknetworking HOT 2 CLOSED

(lldb) po response.mimeType == receivedHTTPResponse.mimeType
false

(lldb) po response.mimeType
nil

(lldb) po receivedResponse?.mimeType
▿ Optional<String>
  - some : "text/plain"

private func isEqual(to other: URLResponse) -> Bool {
        if self === other {
            return true
        }

        return self.url == other.url &&
                self.expectedContentLength == other.expectedContentLength &&
                self.mimeType == other.mimeType &&
                self.textEncodingName == other.textEncodingName
    }