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")

    assertThat(parse(url, "a=")!!.value).isEqualTo("")
    assertThat(parse(url, "a= ")!!.value).isEqualTo("")
    assertThat(parse(url, "a=\r\t \n")!!.value).isEqualTo("")
  }

  @Test fun trimLeadingAndTrailingWhitespaceFromValue() {
    assertThat(parse(url, "a= ")!!.value).isEqualTo("")
    assertThat(parse(url, "a= b")!!.value).isEqualTo("b")
    assertThat(parse(url, "a=b ")!!.value).isEqualTo("b")

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)

    assertThat(connectStart.inetSocketAddress).isEqualTo(expectedAddress)
    assertThat(connectStart.proxy).isEqualTo(proxy)
    val connectEnd = listener.removeUpToEvent<CallEvent.ConnectEnd>()
    assertThat(connectEnd.call).isSameAs(call)
    assertThat(connectEnd.inetSocketAddress).isEqualTo(expectedAddress)
    assertThat(connectEnd.protocol).isEqualTo(Protocol.HTTP_1_1)
  }

  @Test

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()

    assertThat(call2Get.path).isEqualTo("/call2")
    assertThat(call2Get.sequenceNumber).isEqualTo(0)
    val call1Get = server.takeRequest()
    assertThat(call1Get.method).isEqualTo("GET")
    assertThat(call1Get.path).isEqualTo("/call1")
    assertThat(call1Get.sequenceNumber).isEqualTo(1)
    assertThat(client.connectionPool.connectionCount()).isEqualTo(1)
  }