def test_clear_full_rows_with_one_full_row(self):
board = Board(20, 40)
board.rows[0] = [1]*20
count = board.clear_full_rows()
self.assertEqual(count, 1)
count = board.clear_full_rows()
self.assertEqual(count, 0)
def test_clear_full_rows_with_three_full_rows(self):
board = Board(20, 40)
board.rows[0] = [1] * 20
board.rows[10] = [1] * 20
board.rows[35] = [1] * 20
board.rows[30] = [1, None] * 10
count = board.clear_full_rows()
self.assertEqual(count, 3)
def test_clear_full_rows_with_no_full_rows(self):
board = Board(20, 40)
count = board.clear_full_rows()
self.assertEqual(count, 0)
