var uriHost: String = "example.com"
  var uriPort: Int = 1

  fun newConnection(
    pool: RealConnectionPool,
    route: Route,
    idleAtNanos: Long = Long.MAX_VALUE,
    taskRunner: TaskRunner = this.taskRunner,
  ): RealConnection {
    val result =
      RealConnection.newTestConnection(
        taskRunner = taskRunner,
        connectionPool = pool,
        route = route,

        .build()
    server.enqueue(
      MockResponse.Builder()
        .addHeader("SeNsItIvE", "Value").addHeader("Not-Sensitive", "Value")
        .build(),
    )
    val response =
      client
        .newCall(
          request()
            .addHeader("SeNsItIvE", "Value")
            .addHeader("Not-Sensitive", "Value")
            .build(),
        )
        .execute()
    response.body.close()

    /**
     * Sets the header named [name] to [value]. If this request already has any headers
     * with that name, they are all replaced.
     */
    open fun header(
      name: String,
      value: String,
    ) = commonHeader(name, value)

    /**
     * Adds a header with [name] and [value]. Prefer this method for multiply-valued
     * headers like "Cookie".
     *

    ): Headers {
      val result = Headers.Builder()

      for (index in 0 until cachedHeaders.size) {
        val fieldName = cachedHeaders.name(index)
        val value = cachedHeaders.value(index)
        if ("Warning".equals(fieldName, ignoreCase = true) && value.startsWith("1")) {
          // Drop 100-level freshness warnings.
          continue
        }
        if (isContentSpecificHeader(fieldName) ||

        .build(),
    )
    val webSocket = newWebSocket()
    clientListener.assertFailure(
      101,
      null,
      ProtocolException::class.java,
      "Expected 'Connection' header value 'Upgrade' but was 'null'",
    )
    webSocket.cancel()
  }

  @Test
  @Throws(IOException::class)
  fun wrongConnectionHeader() {
    webServer.enqueue(
      MockResponse.Builder()

    lock.assertHeld()

    while (true) {
      if (readyQueues.isEmpty()) {
        return null // Nothing to do.
      }

      val now = backend.nanoTime()
      var minDelayNanos = Long.MAX_VALUE
      var readyTask: Task? = null
      var multipleReadyTasks = false

      // Decide what to run. This loop's goal wants to:
      //  * Find out what this thread should do (either run a task or sleep)

        this.name = name
      }

    fun value(value: String) =
      apply {
        require(value.trim() == value) { "value is not trimmed" }
        this.value = value
      }

    fun expiresAt(expiresAt: Long) =
      apply {
        var expiresAt = expiresAt
        if (expiresAt <= 0L) expiresAt = Long.MIN_VALUE
        if (expiresAt > MAX_DATE) expiresAt = MAX_DATE

      }

    /**
     * Sets the default connect timeout for new connections. A value of 0 means no timeout,
     * otherwise values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
     *
     * The connect timeout is applied when connecting a TCP socket to the target host. The default
     * value is 10 seconds.
     */
    fun connectTimeout(
      timeout: Long,
      unit: TimeUnit,

  }

  private fun stringFill(
    fillChar: Char,
    length: Int,
  ): String {
    val value = CharArray(length)
    Arrays.fill(value, fillChar)
    return String(value)
  }

  @Test
  fun canceledBeforeExecute() {
    val call = client.newCall(Request.Builder().url(server.url("/a")).build())
    call.cancel()

   * until every returned [Response] has been closed.
   */
  var idleCallback: Runnable? = null
    get() = this.withLock { field }
    set(value) {
      this.withLock { field = value }
    }

  private var executorServiceOrNull: ExecutorService? = null

  @get:JvmName("executorService")
  val executorService: ExecutorService
    get() =
      this.withLock {