public void IRequirementsBean()
{
Requirement req = new Requirement(to.TestCasesStruct, "Req 1");
Requirement req2 = new Requirement(to.TestCasesStruct, "Req 2");
Effect effect = new Effect(to.TestCasesStruct);
effect.AddRequirement(req2);
dao.Save();
to.TestCasesStruct.RemoveRequirement(req);
dao.DeleteItem(req);
effect.RemoveRequirement(req2);
to.TestCasesStruct.RemoveRequirement(req2);
dao.DeleteItem(req2);
dao.Save();
Requirement req3 = dao.GetItem(req2.GetType(), req.Id) as Requirement;
Assert.IsNull(req3);
}