public boolean add(final Integer value)
    {
        return add(value.intValue());
    }
@Test
    void setsWithTheDifferentValuesAreNotEqual()
    {
        final IntHashSet other = new IntHashSet(100);

        addTwoElements(testSet);

        other.add(2);
        other.add(1001);

        assertNotEquals(testSet, other);
    }