public void TestThatCanUpgradeMembershipValidatesWhetherMembershipCanBeUpgraded(Membership currentMembership, Membership upgradeToMembership, bool expectedResult)
{
IDomainObjectValidations sut = new DomainObjectValidations();
Assert.That(sut, Is.Not.Null);
bool result = sut.CanUpgradeMembership(currentMembership, upgradeToMembership);
Assert.That(result, Is.EqualTo(expectedResult));
}