public void AssertThat_QueryingOctreeContainedBy_ReturnsItemsContainedInQueryBounds() { _octree.Insert(new BoundingBox(new Vector3(1), new Vector3(2)), "hello"); _octree.Insert(new BoundingBox(new Vector3(8), new Vector3(9)), "world"); Assert.AreEqual(2, _octree.Count); Assert.AreEqual("hello", _octree.ContainedBy(new BoundingBox(new Vector3(0), new Vector3(3))).Single()); }