.isEqualTo("xn--ewv.xn--4pvxs.jp")
    assertThat("https://co.uk".toHttpUrl().topPrivateDomain()).isNull()
    assertThat("https://square".toHttpUrl().topPrivateDomain()).isNull()
    assertThat("https://栃木.jp".toHttpUrl().topPrivateDomain()).isNull()
    assertThat("https://xn--4pvxs.jp".toHttpUrl().topPrivateDomain()).isNull()
    assertThat("https://localhost".toHttpUrl().topPrivateDomain()).isNull()

 */
class PublicSuffixDatabaseTest {
  @Test
  fun testTopLevelDomain() {
    assertThat("https://www.google.com/robots.txt".toHttpUrl().topPrivateDomain()).isEqualTo("google.com")
  }

    InternetDomainName googleDomain = InternetDomainName.from("google.com");

    assertThat(googleDomain.topPrivateDomain()).isEqualTo(googleDomain);
    assertThat(googleDomain.child("mail").topPrivateDomain()).isEqualTo(googleDomain);
    assertThat(googleDomain.child("foo.bar").topPrivateDomain()).isEqualTo(googleDomain);
  }

  public void testInvalidTopPrivateDomain() {

    InternetDomainName googleDomain = InternetDomainName.from("google.com");

    assertThat(googleDomain.topPrivateDomain()).isEqualTo(googleDomain);
    assertThat(googleDomain.child("mail").topPrivateDomain()).isEqualTo(googleDomain);
    assertThat(googleDomain.child("foo.bar").topPrivateDomain()).isEqualTo(googleDomain);
  }

  public void testInvalidTopPrivateDomain() {

   *
   * In general this method **should not** be used to test whether a domain is valid or routable.
   * Instead, DNS is the recommended source for that information.
   *
   * | URL                           | `topPrivateDomain()` |
   * | :---------------------------- | :------------------- |
   * | `http://google.com`           | `"google.com"`       |
   * | `http://adwords.google.co.uk` | `"google.co.uk"`     |

      assertThat(response.cacheResponse).isNotNull()
    }
  }

  @Test
  open fun testPublicSuffixDb() {
    val httpUrl = "https://www.google.co.uk".toHttpUrl()
    assertThat(httpUrl.topPrivateDomain()).isEqualTo("google.co.uk")
  }

  private fun assumeNetwork() {
    try {
      InetAddress.getByName("www.google.com")
    } catch (uhe: UnknownHostException) {

import org.junit.jupiter.api.Test

class PublicSuffixDatabaseTest {
  @Test
  fun testResourcesLoaded() {
    val url = "https://api.twitter.com".toHttpUrl()

    assertThat(url.topPrivateDomain()).isEqualTo("twitter.com")
  }

    val client = OkHttpClient()

    // Ensure we are compiling against the right variant
    println(AndroidPlatform.isSupported)

    val url = "https://github.com/square/okhttp".toHttpUrl()
    println(url.topPrivateDomain())

    client.newCall(Request(url)).enqueue(
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          println("failed: $e")

    Platform.resetForTests()
    PlatformRegistry.applicationContext = null
  }

  @Test
  fun testWithoutContext() {
    val httpUrl = "https://www.google.co.uk".toHttpUrl()
    assertFailure { httpUrl.topPrivateDomain() }.all {
      hasMessage("Unable to load PublicSuffixDatabase.list resource.")
      cause().isNotNull().all {
        hasMessage(
          "Platform applicationContext not initialized. " +

 *  Fix: Recover gracefully when a cache entry's certificate is corrupted.

 *  Fix: Fail permanently when there's a failure loading the bundled public suffix database.
    This is the dataset that powers `HttpUrl.topPrivateDomain()`.

 *  Fix: Immediately update the connection's flow control window instead of waiting for the
    receiving stream to process it.