val elapsedNanos = System.nanoTime() - startNanos
    val elapsedMillis = TimeUnit.NANOSECONDS.toMillis(elapsedNanos)
    assertThat(elapsedMillis).isBetween(500L, 1000L)
  }

  /** Delay the response body by sleeping 1s.  */
  @Test
  fun delayResponse() {
    assumeNotWindows()
    server.enqueue(
      MockResponse.Builder()
        .body("ABCDEF")
        .bodyDelay(1, TimeUnit.SECONDS)
        .build(),
    )

    val elapsedNanos = System.nanoTime() - startNanos
    val elapsedMillis = TimeUnit.NANOSECONDS.toMillis(elapsedNanos)
    assertThat(elapsedMillis).isBetween(500L, 1000L)
  }

  /** Delay the response body by sleeping 1s.  */
  @Test
  fun delayResponse() {
    assumeNotWindows()
    server.enqueue(
      MockResponse()
        .setBody("ABCDEF")
        .setBodyDelay(1, TimeUnit.SECONDS),
    )

    server.enqueue(
      MockResponse.Builder()
        .body("def")
        .throttleBody(1, 750, TimeUnit.MILLISECONDS)
        .build(),
    )

    // First request: time out after 1s.
    client =
      client.newBuilder()
        .readTimeout(Duration.ofSeconds(1))
        .build()
    executeSynchronously("/a").assertBody("abc")

    // Second request: time out after 250ms.