@Test
public void testSetCell() throws Exception {

    CellGrid<MyCell> grid = createGrid(GridDef.createGlobal(5.0));
    assertNull(grid.getCell(6, 18));
    MyCell cell = new MyCell(6, 18);
    grid.setCell(6, 18, cell);
    assertSame(cell, grid.getCell(6, 18));
    assertSame(cell, grid.getCellSafe(6, 18));
}