def test_fill_down(self): bp = BoundingPyramid() bp.add(TileCoord(1, 1, 0)) bp.fill_down(3) self.assertEqual(bp.zget(2), (Bounds(2, 4), Bounds(0, 2))) self.assertEqual(bp.zget(3), (Bounds(4, 8), Bounds(0, 4)))