def test_cell_state_filled_unfilled(self):
     cell = Cell()
     cell.state = True
     self.assertTrue(cell)
     self.assertEquals(str(cell), 'x')
     cell.state = False
     self.assertFalse(cell.state)
     self.assertEquals(str(cell), ' ')
 def test_set_cell_state_filled(self):
     cell = Cell()
     cell.state = True
     self.assertTrue(cell.state)
     self.assertEquals(str(cell), 'x')