assertFalse(input.isCancelled());
    assertFalse(input.isDone());
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests
  private static class TestException extends Exception {

    TestException(@Nullable Throwable cause) {
      super(cause);
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests

    assertFalse(input.isCancelled());
    assertFalse(input.isDone());
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests
  private static class TestException extends Exception {

    TestException(@Nullable Throwable cause) {
      super(cause);
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // used only in GwtIncompatible tests