fun connectionNotReusedAfterShutdown(protocol: Protocol) {
    setUp(protocol)
    server.enqueue(
      MockResponse
        .Builder()
        .body("ABC")
        .onResponseEnd(ShutdownConnection)
        .build(),
    )
    server.enqueue(MockResponse(body = "DEF"))
    // Enqueue an additional response that show if we burnt a good prior response.
    server.enqueue(