public void Model_CategoryModelBase_TestIsOnSameTree()
{
CategoryModelBase c1 = new CategoryModelBase(null);
CategoryModelBase c2 = new CategoryModelBase(null);
List <Relative> rs = new List <Relative>();
rs.Add(new Relative(c1));
CategoryModelBase c3 = new CategoryModelBase(rs, c1.Tree);
Assert.IsFalse(c1.IsOnSameTree(c2), "c1和c2并不在同一个tree中！如果断言为true，请检查方法：IsOnSameTree。");
Assert.IsTrue(c1.IsOnSameTree(c3), "c1和c3处于同一个tree中！如果断言为false，请检查方法：IsOnSameTree。");
}
