return capAtMaximumSize(newCapacity, maximumSize);
  }

  /** There's no reason for the queueSize to ever be more than maxSize + 1 */
  private static int capAtMaximumSize(int queueSize, int maximumSize) {
    return min(queueSize - 1, maximumSize) + 1; // don't overflow
  }

 * thrown and no [WebSocketListener.onFailure] callback is triggered, so callers should always check
 * the return value of `send()`.
 *
 * Use [queueSize] to monitor backpressure before sending. For large payloads, consider breaking
 * them into smaller messages or using HTTP requests instead.
 */
interface WebSocket {

    return capAtMaximumSize(newCapacity, maximumSize);
  }

  /** There's no reason for the queueSize to ever be more than maxSize + 1 */
  private static int capAtMaximumSize(int queueSize, int maximumSize) {
    return min(queueSize - 1, maximumSize) + 1; // don't overflow
  }

    var messageCount: Long = 0
    while (true) {
      val success = webSocket.send(message)
      if (!success) break
      messageCount++
      val queueSize = webSocket.queueSize()
      assertThat(queueSize).isBetween(0L, messageCount * message.size)
      // Expect to fail before enqueueing 32 MiB.
      assertThat(messageCount).isLessThan(32L)
    }

  }

  @Test
  fun webSocket() {
    val webSocket =
      object : WebSocket {
        override fun request(): Request = TODO()

        override fun queueSize(): Long = TODO()

        override fun send(text: String): Boolean = TODO()

        override fun send(bytes: ByteString): Boolean = TODO()

        override fun close(
          code: Int,

public final class okhttp3/TrailersSource$Companion {
}

public abstract interface class okhttp3/WebSocket {
	public abstract fun cancel ()V
	public abstract fun close (ILjava/lang/String;)Z
	public abstract fun queueSize ()J
	public abstract fun request ()Lokhttp3/Request;
	public abstract fun send (Ljava/lang/String;)Z
	public abstract fun send (Lokio/ByteString;)Z
}

public final class okhttp3/TrailersSource$Companion {
}

public abstract interface class okhttp3/WebSocket {
	public abstract fun cancel ()V
	public abstract fun close (ILjava/lang/String;)Z
	public abstract fun queueSize ()J
	public abstract fun request ()Lokhttp3/Request;
	public abstract fun send (Ljava/lang/String;)Z
	public abstract fun send (Lokio/ByteString;)Z
}