assertThat(parse("http://[::ffff:c0a8:1fe]/").host).isEqualTo("192.168.1.254")
  }

  /**
   * The builder permits square braces but does not require them.
   */
  @Test
  fun hostIpv6Builder() {
    val base = parse("http://example.com/")
    assertThat(
      base
        .newBuilder()
        .host("[::1]")
        .build()
        .toString(),
    ).isEqualTo("http://[::1]/")