protected SettableFuture<Integer> inputFuture;
  protected ListenableFuture<T> resultFuture;
  protected MockFutureListener listener;

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    inputFuture = SettableFuture.create();
    resultFuture = buildChainingFuture(inputFuture);
    listener = new MockFutureListener(resultFuture);
  }

  @Override
  protected ListenableFuture<String> buildChainingFuture(ListenableFuture<Integer> inputFuture) {
    outputFuture = SettableFuture.create();
    funcIsWaitingLatch = new CountDownLatch(1);
    funcCompletionLatch = new CountDownLatch(1);
    return transformAsync(inputFuture, new ChainingFunction(), directExecutor());
  }

  @Override
  protected String getSuccessfulResult() {

  @Override
  protected ListenableFuture<String> buildChainingFuture(ListenableFuture<Integer> inputFuture) {
    outputFuture = SettableFuture.create();
    funcIsWaitingLatch = new CountDownLatch(1);
    funcCompletionLatch = new CountDownLatch(1);
    return transformAsync(inputFuture, new ChainingFunction(), directExecutor());
  }

  @Override
  protected String getSuccessfulResult() {

      new UndeclaredThrowableException(EXCEPTION);

  @Override
  protected ListenableFuture<String> buildChainingFuture(ListenableFuture<Integer> inputFuture) {
    return transform(inputFuture, new ComposeFunction(), directExecutor());
  }

  @Override
  protected String getSuccessfulResult() {
    return RESULT_DATA;
  }

      new UndeclaredThrowableException(EXCEPTION);

  @Override
  protected ListenableFuture<String> buildChainingFuture(ListenableFuture<Integer> inputFuture) {
    return transform(inputFuture, new ComposeFunction(), directExecutor());
  }

  @Override
  protected String getSuccessfulResult() {
    return RESULT_DATA;
  }

    AsyncFunction<String, Integer> function =
        unused -> {
          throw error;
        };
    SettableFuture<String> inputFuture = SettableFuture.create();
    ListenableFuture<Integer> outputFuture =
        transformAsync(inputFuture, function, directExecutor());
    inputFuture.set("value");
    ExecutionException expected =
        assertThrows(ExecutionException.class, () -> getDone(outputFuture));

    AsyncFunction<String, Integer> function =
        unused -> {
          throw error;
        };
    SettableFuture<String> inputFuture = SettableFuture.create();
    ListenableFuture<Integer> outputFuture =
        transformAsync(inputFuture, function, directExecutor());
    inputFuture.set("value");
    ExecutionException expected =
        assertThrows(ExecutionException.class, () -> getDone(outputFuture));