@Test
public void testAdd() {

	// Add a value and make sure it appears
	assertFalse(table.contains(-3));
	table.add(-3);
	assertTrue(table.contains(-3));
	// Make sure a redundant add doesn't hurt
	assertFalse(table.contains(3));
	table.add(3);
	assertTrue(table.contains(3));
	table.add(3);
	assertTrue(table.contains(3));
}