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() {
    val request1 = newRequest("http://a/1")
    val request2 = newRequest("http://a/2")