.isFalse();
    // But its closeable is closed.
    assertClosed(closeable1);

    // Step 2 is cancelled because it wasn't complete.
    assertWithMessage("step2.statusFuture().isCancelled()")
        .that(step2.statusFuture().isCancelled())
        .isTrue();
    // Its closeable is closed.
    assertClosed(closeable2);

    // Step 3 was cancelled before it began

        ) {
          webSocket.close(1000, null)
        }
      },
    )
    server.close(1001, "bye")
    clientListener.assertClosed(1001, "bye")
    clientListener.assertExhausted()
    serverListener.assertClosing(1000, "")
    serverListener.assertClosed(1000, "")
    serverListener.assertExhausted()
  }

  @Test
  fun unplannedCloseHandledWithoutFailure() {
    webServer.enqueue(

        .isFalse();
    // But its closeable is closed.
    assertClosed(closeable1);

    // Step 2 is cancelled because it wasn't complete.
    assertWithMessage("step2.statusFuture().isCancelled()")
        .that(step2.statusFuture().isCancelled())
        .isTrue();
    // Its closeable is closed.
    assertClosed(closeable2);

    // Step 3 was cancelled before it began

    assertThat(nextEvent()).isEqualTo(Pong(payload))
  }

  fun assertClosing(
    code: Int,
    reason: String,
  ) {
    assertThat(nextEvent()).isEqualTo(Closing(code, reason))
  }

  fun assertClosed(
    code: Int,
    reason: String,
  ) {
    assertThat(nextEvent()).isEqualTo(Closed(code, reason))
  }

  fun assertExhausted() {
    assertThat(events).isEmpty()
  }