} catch (ExecutionException e) {
      throw failureWithCause(e, "");
    }
  }

  static void verifyTimedGetOnPendingFuture(Future<?> future) {
    try {
      getUninterruptibly(future, 0, SECONDS);
      fail();
    } catch (TimeoutException expected) {
    } catch (ExecutionException e) {
      throw failureWithCause(e, "");
    }
  }

  static void verifyThreadWasNotInterrupted() {

    } catch (ExecutionException e) {
      throw failureWithCause(e, "");
    }
  }

  static void verifyTimedGetOnPendingFuture(Future<?> future) {
    try {
      getUninterruptibly(future, 0, SECONDS);
      fail();
    } catch (TimeoutException expected) {
    } catch (ExecutionException e) {
      throw failureWithCause(e, "");
    }
  }

  static void verifyThreadWasNotInterrupted() {

    }

    void smartAssertTrue(
        ImmutableSet<ListenableFuture<String>> inputs, Exception cause, boolean expression) {
      if (!expression) {
        throw failureWithCause(cause, smartToString(inputs));
      }
    }

    boolean hasDelayed(ListenableFuture<String> a, ListenableFuture<String> b) {
      ImmutableSet<ListenableFuture<String>> inputs = ImmutableSet.of(a, b);

    }

    void smartAssertTrue(
        ImmutableSet<ListenableFuture<String>> inputs, Exception cause, boolean expression) {
      if (!expression) {
        throw failureWithCause(cause, smartToString(inputs));
      }
    }

    boolean hasDelayed(ListenableFuture<String> a, ListenableFuture<String> b) {
      ImmutableSet<ListenableFuture<String>> inputs = ImmutableSet.of(a, b);