assertThat(callFailed.call).isSameAs(call)
    assertThat(callFailed.ioe).isInstanceOf(
      UnknownHostException::class.java,
    )
  }

  @Test
  fun successfulConnect() {
    server.enqueue(MockResponse())
    val call =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )