public void BugService_save_simple_bug()
{
var idBug = Guid.NewGuid();
_bugRepository.Setup(x => x.Insert(It.IsAny <Data.Entity.Bug>())).Returns(idBug);
var resut = _bugService.Insert(_bug);
_bugRepository.Verify(x => x.Insert(It.IsAny <Data.Entity.Bug>()), Times.Once());
Assert.AreEqual(resut, idBug);
}