	@Test
	public void testNotEquals()
	{

		Global.randomSeed();
		DGraph<String> g1 = new DiskDGraph(r());
		
		DTGraph<String, String> g2 = new MapDTGraph<String, String>();
		
		assertFalse(g1.equals(g2));
		assertFalse(g2.equals(g1));	
	}