def test_should_turn_dead_when_a_live_cell_have_2_alive_neighbour(self):
# given
cell = Cell(True)
number_of_alive_neighbour = 1
# when
cell.next(number_of_alive_neighbour)
# then
self.assertFalse(cell.state)
def test_should_turn_alive_when_a_cell_have_3_alive_neighbour(self):
# given
cell = Cell(False)
number_of_alive_neighbour = 3
# when
cell.next(number_of_alive_neighbour)
# then
self.assertTrue(cell.state)
def test_should_keep_alive_when_a_alive_cell_have_2_alive_neighbour(self):
# given
cell = Cell(True)
number_of_alive_neighbour = 2
# when
cell.next(number_of_alive_neighbour)
# then
self.assertTrue(cell.state)
def test_should_keep_dead_when_a_dead_cell_have_2_alive_neighbour(self):
# given
cell = Cell(False)
number_of_alive_neighbour = 2
# when
cell.next(number_of_alive_neighbour)
# then
self.assertFalse(cell.state)