enableProtocol(protocol)
    server.enqueue(
      MockResponse(body = "A"),
    )
    client =
      client.newBuilder()
        .protocols(Arrays.asList(protocol, Protocol.HTTP_1_1))
        .build()
    val response = getResponse(newRequest("/"))
    assertThat(response.protocol).isEqualTo(protocol)
    assertContent("A", response)
  }

  @Test

    server.useHttps(handshakeCertificates.sslSocketFactory())
    server.protocols =
      when {
        http2 -> listOf(Protocol.HTTP_2, Protocol.HTTP_1_1)
        else -> listOf(Protocol.HTTP_1_1)
      }
    server.enqueue(MockResponse(inTunnel = true))
    client =
      client.newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),