try {
      server.url("/a").toUrl().openConnection().getInputStream()
      fail<Any>()
    } catch (expected: IOException) {
    }
    server.url("/b").toUrl().openConnection().getInputStream() // Should succeed.
  }

  /**
   * Throttle the request body by sleeping 500ms after every 3 bytes. With a 6-byte request, this
   * should yield one sleep for a total delay of 500ms.
   */
  @Test
  fun throttleRequest() {

      server.url("/a").toUrl().openConnection().getInputStream()
      fail<Unit>()
    } catch (expected: IOException) {
      // Expected.
    }
    server.url("/b").toUrl().openConnection().getInputStream() // Should succeed.
  }

  @Test
  fun clearDispatcherQueue() {
    server.enqueue(MockResponse(body = "A"))
    (server.dispatcher as QueueDispatcher).clear()
    server.enqueue(MockResponse(body = "B"))