public boolean add(final Integer value)
    {
        return add(value.intValue());
    }
@Test
    void consecutiveValuesShouldBeCorrectlyStored()
    {
        for (int i = 0; i < 10_000; i++)
        {
            testSet.add(i);
        }

        assertThat(testSet, hasSize(10_000));
    }