@Test
	public void testInit() {
		Puzzle puzzle = new Puzzle(2);
		
		for(int r = 0; r < 4; r++)
			for(int c = 0; c < 4; c++)
				assertEquals(puzzle.getColor(r, c), '.');
		
		assertEquals(puzzle.getCliques().length, 3);
		for(Clique[] cliques : puzzle.getCliques()){
			assertEquals(cliques.length, 4);
			for(Clique clique : cliques)
				assertEquals(clique.getCells().size(), 4);
		}
	}