def test_fill(self):
fill = Fill()
self.assertEqual(fill.draw(10, 0), '')
self.assertEqual(fill.draw(10, 1), '.' * 10)
self.assertEqual(fill.draw(2, 2), '..\n..')
self.assertEqual(fill.draw(0, 10), '\n' * 9)
fill = Fill('o')
self.assertEqual(fill.draw(1, 1), 'o')
