val requestedUris = mutableListOf<URI>()
  val failures = mutableListOf<String>()

  override fun select(uri: URI): List<Proxy> {
    requestedUris.add(uri)
    return proxies
  }

  fun assertRequests(vararg expectedUris: URI?) {
    assertThat(requestedUris).containsExactly(*expectedUris)
    requestedUris.clear()
  }

  override fun connectFailed(
    uri: URI,
    sa: SocketAddress,
    ioe: IOException,

  @Throws(UnknownHostException::class)
  override fun lookup(hostname: String): List<InetAddress> {
    requestedHosts.add(hostname)
    return hostAddresses[hostname] ?: throw UnknownHostException()
  }

  fun assertRequests(vararg expectedHosts: String?) {
    assertThat(requestedHosts).containsExactly(*expectedHosts)
    requestedHosts.clear()
  }

  /** Allocates and returns `count` fake IPv4 addresses like [255.0.0.100, 255.0.0.101].  */

    dns.assertRequests(uriHost)
    proxySelector.assertRequests(address.url.toUri())
  }

  @Test fun proxySelectorReturnsMultipleProxies() {
    val address = factory.newAddress()
    proxySelector.proxies.add(proxyA)
    proxySelector.proxies.add(proxyB)
    val routeSelector = newRouteSelector(address)
    proxySelector.assertRequests(address.url.toUri())

      Request(
        server
          .url("/")
          .newBuilder()
          .host("android.com")
          .build(),
      )
    executeSynchronously(request).assertCode(200)
    dns.assertRequests("android.com")
  }

  @Test
  fun dnsReturnsZeroIpAddresses() {
    // Configure a DNS that returns our local MockWebServer for android.com.
    val dns = FakeDns()