fun head(
    protocol: Protocol,
    mockWebServer: MockWebServer,
  ) {
    setUp(protocol, mockWebServer)
    val mockResponse =
      MockResponse.Builder()
        .setHeader("Content-Length", 5)
        .status("HTTP/1.1 200")
        .build()
    server.enqueue(mockResponse)
    val call =
      client.newCall(
        Request.Builder()
          .head()