@Test fun addressToString() {
    val address = factory.newAddress()
    assertThat(address.toString())
      .isEqualTo("Address{example.com:80, proxySelector=RecordingProxySelector}")
  }

  @Test fun addressWithProxyToString() {
    val address = factory.newAddress(proxy = Proxy.NO_PROXY)
    assertThat(address.toString())
      .isEqualTo("Address{example.com:80, proxy=${Proxy.NO_PROXY}}")
  }