def test_next_generation():
result = next_generation()
assert result == 'foo'
def test_next_generation_vertical_blinker_input(self):
live_cells = [(0, 1), (1, 1), (2, 1)]
result = [(1, 0), (1, 1), (1, 2)]
self.assertEqual(result, game_of_life.next_generation(live_cells))
def test_next_generation_single_live_cell_input(self):
live_cells = [(0, 0)]
result = []
self.assertEqual(result, game_of_life.next_generation(live_cells))
def test_next_generation_block_input(self):
live_cells = [(0, 0), (0, 1), (1, 0), (1, 1)]
result = [(0, 1), (1, 0), (1, 1), (0, 0)]
self.assertEqual(result, game_of_life.next_generation(live_cells))