}

  @Test
  fun executionRejectedImmediately() {
    val request = newRequest("http://a/1")
    executor.shutdown()
    client.newCall(request).enqueue(callback)
    callback.await(request.url).assertFailure(InterruptedIOException::class.java)
    assertThat(listener.recordedEventTypes())
      .containsExactly("CallStart", "CallFailed")
  }

  @Test
  fun executionRejectedAfterMaxRequestsChange() {

    callback.await(server.url("/0")).assertFailure("Too many follow-up requests: 21")
  }

  @Test
  fun http204WithBodyDisallowed() {
    server.enqueue(
      MockResponse(
        code = 204,
        body = "I'm not even supposed to be here today.",
      ),
    )
    executeSynchronously("/")
      .assertFailure("HTTP 204 had non-zero Content-Length: 39")
  }

  }

  fun assertOpen(): EventSource {
    val event = nextEvent() as Open
    return event.eventSource
  }

  fun assertClose() {
    nextEvent() as Closed
  }

  fun assertFailure(message: String?) {
    val event = nextEvent() as Failure
    if (message != null) {
      assertThat(event.t!!.message).isEqualTo(message)
    } else {
      assertThat(event.t).isNull()
    }
  }

        if (cleanShutdown) {
          assertSuccessful()
          assertCode(200)

          assertThat(server2.requestCount).isEqualTo(1)
        } else {
          this.assertFailure(SocketTimeoutException::class.java)
        }
      }

    println("\n\nRequest to ${server2.inetSocketAddress}")
    executeSynchronously(request)
      .assertSuccessful()
      .assertCode(200)
  }