public void EntitySpecificationSatisfiedCheckTests()
{
// arrange
var sut = new StubPerson();
sut.JoinGroup("abc");
sut.LeaveGroup("abc");
// act/assert
sut.Groups.ShouldNotContain("abc");
}
public void EntitySpecificationNotSatisfiedCheckTests()
{
// arrange
var sut = new StubPerson();
sut.JoinGroup("abc");
sut.Expired = true;
sut.LeaveGroup("abc");
// act/assert
sut.Groups.ShouldContain("abc"); // due to person.expired == true
}
