assertThat("☃.net".toCanonicalHost()).isEqualTo("xn--n3h.net")

    // IPv4 Compatible or Mapped addresses
    assertThat("::192.168.0.1".toCanonicalHost()).isEqualTo("::c0a8:1")
    assertThat("::FFFF:192.168.0.1".toCanonicalHost()).isEqualTo("192.168.0.1")
    assertThat("0:0:0:0:0:0:13.1.68.3".toCanonicalHost()).isEqualTo("::d01:4403")
    assertThat("::13.1.68.3".toCanonicalHost()).isEqualTo("::d01:4403")

import assertk.assertThat
import assertk.assertions.isEqualTo
import okhttp3.Headers.Companion.headersOf
import org.junit.jupiter.api.Test

class WebSocketExtensionsTest {
  @Test
  fun emptyHeader() {
    assertThat(parse("")).isEqualTo(WebSocketExtensions())
  }

  @Test
  fun noExtensionHeader() {
    assertThat(WebSocketExtensions.parse(headersOf()))
      .isEqualTo(WebSocketExtensions())
  }

  @Test

    assertThat(Protocol.HTTP_1_1.toString()).isEqualTo("http/1.1")
    assertThat(Protocol.SPDY_3.toString()).isEqualTo("spdy/3.1")
    assertThat(Protocol.HTTP_2.toString()).isEqualTo("h2")
    assertThat(Protocol.H2_PRIOR_KNOWLEDGE.toString())
      .isEqualTo("h2_prior_knowledge")
    assertThat(Protocol.QUIC.toString()).isEqualTo("quic")
    assertThat(Protocol.HTTP_3.toString()).isEqualTo("h3")
  }

        .byteCount(),
    ).isEqualTo(10L)
    assertThat(
      Headers.Builder()
        .add("abc", "def")
        .add("ghi", "jkl")
        .build()
        .byteCount(),
    ).isEqualTo(20L)
  }

  @Test fun addDate() {
    val expected = Date(0L)
    val headers =
      Headers.Builder()
        .add("testDate", expected)
        .build()
    assertThat(headers["testDate"]).isEqualTo("Thu, 01 Jan 1970 00:00:00 GMT")

    assertThat(formEncode(33)).isEqualTo("%21")
    assertThat(formEncode(34)).isEqualTo("%22")
    assertThat(formEncode(35)).isEqualTo("%23")
    assertThat(formEncode(36)).isEqualTo("%24")
    assertThat(formEncode(37)).isEqualTo("%25")
    assertThat(formEncode(38)).isEqualTo("%26")
    assertThat(formEncode(39)).isEqualTo("%27")
    assertThat(formEncode(40)).isEqualTo("%28")
    assertThat(formEncode(41)).isEqualTo("%29")

    assertThat(statusLine.message).isEqualTo(message)
    assertThat(statusLine.protocol).isEqualTo(Protocol.HTTP_1_1)
    assertThat(statusLine.code).isEqualTo(code)
  }

  @Test
  fun emptyMessage() {
    val version = 1
    val code = 503
    val statusLine = parse("HTTP/1.$version $code ")
    assertThat(statusLine.message).isEqualTo("")
    assertThat(statusLine.protocol).isEqualTo(Protocol.HTTP_1_1)

import assertk.assertions.isEqualTo
import assertk.assertions.isNull
import java.time.Instant
import java.util.Date
import okhttp3.Headers.Companion.headersOf
import org.junit.jupiter.api.Test

class HeadersKotlinTest {
  @Test fun getOperator() {
    val headers = headersOf("a", "b", "c", "d")
    assertThat(headers["a"]).isEqualTo("b")
    assertThat(headers["c"]).isEqualTo("d")
    assertThat(headers["e"]).isNull()

      client.newCall(
        Request.Builder()
          .url(server!!.url("/"))
          .build(),
      )
    val response = call.execute()
    assertThat(response.code).isEqualTo(200)
    assertThat(response.body.string()).isEqualTo("abc")
    response.body.close()
    assertThat(listener.recordedEventTypes()).containsExactly(
      "ConnectStart",
      "ConnectEnd",
      "ConnectionAcquired",

      |
      |
      """.trimMargin(),
    )
    assertThat(callbacks.remove()).isEqualTo(Event(null, "add", "73857293"))
    assertThat(callbacks.remove()).isEqualTo(Event(null, "remove", "2153"))
    assertThat(callbacks.remove()).isEqualTo(Event(null, "add", "113411"))
  }

  @Test
  fun commentsIgnored() {
    consumeEvents(
      """
      |: test stream
      |
      |data: first event

          ipv6_ab,
          ipv6_fc,
        ),
      )

    assertThat(result).isEqualTo(
      listOf(ipv6_ab, ipv4_10_0_0_6, ipv6_fc, ipv4_10_0_0_1, ipv4_10_0_0_4),
    )
  }

  @Test fun ipv6Only() {
    val result = reorderForHappyEyeballs(listOf(ipv6_ab, ipv6_fc))

    assertThat(result).isEqualTo(
      listOf(ipv6_ab, ipv6_fc),
    )
  }

  @Test fun ipv4Only() {
    val result =