def test_should_return_only_survivors(self):
"""
.*
**
=>
**
**
"""
# GIVEN
seed = set([(0, 0), (0, 1), (1, 1)])
game_of_life = GameOfLife(seed)
expected_survivors = set([(0, 0), (0, 1), (1, 1)])
# WHEN
survivors = game_of_life.get_survivors()
# THEN
self.assertEqual(expected_survivors, survivors)
