public void Test_SubGrid_IsEmpty() { ISubGrid leafSubgrid = null; SubGridTree tree = new SubGridTree(SubGridTreeConsts.SubGridTreeLevels, 1.0, new SubGridFactory <NodeSubGrid, LeafSubGrid>()); leafSubgrid = new SubGrid(tree, null, SubGridTreeConsts.SubGridTreeLevels); Assert.False(leafSubgrid.IsEmpty(), "Base subgrid class identifying itself as empty"); }