@Test
  fun interruptReadingResponseBody() {
    val responseBodySize = 8 * 1024 * 1024 // 8 MiB.
    server.enqueue(
      MockResponse()
        .setBody(Buffer().write(ByteArray(responseBodySize)))
        .throttleBody((64 * 1024).toLong(), 125, TimeUnit.MILLISECONDS),
    ) // 500 Kbps
    server.start()
    val call =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))

    val responseBodySize = 8 * 1024 * 1024 // 8 MiB.
    server.enqueue(
      MockResponse
        .Builder()
        .body(
          Buffer()
            .write(ByteArray(responseBodySize)),
        ).throttleBody(64 * 1024, 125, MILLISECONDS) // 500 Kbps
        .build(),
    )
    val call = client.newCall(Request(server.url("/")))
    val response = call.execute()
    cancelLater(call, 500)

testing timeouts and interactive testing.

### Java
```java
MockResponse response = new MockResponse.Builder()
    .throttleBody(1024, 1, TimeUnit.SECONDS)
    .build();
```

### Kotlin
```kotlin
val response = MockResponse.Builder()
  .throttleBody(1024, 1, TimeUnit.SECONDS)
  .build()
```

#### RecordedRequest

   * should yield one sleep for a total delay of 500ms.
   */
  @Test
  fun throttleRequest() {
    assumeNotWindows()
    server.enqueue(
      MockResponse()
        .throttleBody(3, 500, TimeUnit.MILLISECONDS),
    )
    val startNanos = System.nanoTime()
    val connection = server.url("/").toUrl().openConnection()
    connection.setDoOutput(true)

   * should yield one sleep for a total delay of 500ms.
   */
  @Test
  fun throttleRequest() {
    assumeNotWindows()
    server.enqueue(
      MockResponse
        .Builder()
        .throttleBody(3, 500, TimeUnit.MILLISECONDS)
        .build(),
    )
    val startNanos = System.nanoTime()
    val connection = server.url("/").toUrl().openConnection()
    connection.doOutput = true

    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("h1", "v1")
        .trailers(headersOf("t1", "v2"))
        .body(protocol, halfResponseBody + halfResponseBody)
        .throttleBody(
          OKHTTP_CLIENT_WINDOW_SIZE.toLong(),
          DISCARD_STREAM_TIMEOUT_MILLIS.toLong() + 1L,
          TimeUnit.MILLISECONDS,
        ).build(),
    )

    val call =
      client.newCall(

	public final fun socketHandler (Lmockwebserver3/SocketHandler;)Lmockwebserver3/MockResponse$Builder;
	public final fun status (Ljava/lang/String;)Lmockwebserver3/MockResponse$Builder;
	public final fun throttleBody (JJLjava/util/concurrent/TimeUnit;)Lmockwebserver3/MockResponse$Builder;
	public final fun trailers (Lokhttp3/Headers;)Lmockwebserver3/MockResponse$Builder;

    }
  }

  @Test
  fun failedDribbledCallEventSequence() {
    server.enqueue(
      MockResponse
        .Builder()
        .body("0123456789")
        .throttleBody(2, 100, TimeUnit.MILLISECONDS)
        .onResponseBody(CloseSocket())
        .build(),
    )
    client =
      client
        .newBuilder()
        .protocols(listOf<Protocol>(Protocol.HTTP_1_1))

    val body = CharArray(4096) // 4KiB to read.
    Arrays.fill(body, 'y')
    server.enqueue(
      MockResponse
        .Builder()
        .body(String(body))
        .throttleBody(1024, 1, TimeUnit.SECONDS) // Slow connection 1KiB/second.
        .build(),
    )
    client =
      client
        .newBuilder()
        .readTimeout(Duration.ofSeconds(2))
        .build()

    assertThat(getResponse(Request(url)).code).isEqualTo(407)
  }

  @Test
  fun disconnectedConnection() {
    server.enqueue(
      MockResponse
        .Builder()
        .throttleBody(2, 100, TimeUnit.MILLISECONDS)
        .body("ABCD")
        .build(),
    )
    val call = client.newCall(newRequest("/"))
    val response = call.execute()
    val inputStream = response.body.byteStream()