def test_is_empty(self): w = World(1, 1) assert_true(w.is_empty(WorldPoint(w, 0, 0)))
def test_set_get_is_empty(self): w = World(1, 1) assert_true(w.is_empty(WorldPoint(w, 0, 0))) w.set(WorldPoint(w, 0, 0), 'a') assert_equal(w.get(WorldPoint(w, 0, 0)), 'a') assert_false(w.is_empty(WorldPoint(w, 0, 0)))