@Test
public void testRemoveKnownPresent() {

	// Add elements
	set.add((short)1);
	set.add((short)2);
	set.add((short)3);
	// Remove one
	set.removeKnownPresent(2);
	// Verify that this worked
	assertEquals(2, set.size());
	assertEquals("{1, 3}", set.toString());
}