public void IsRush_should_be_false_when_all_conditions_are_met()
        {
            var order = SampleOrder
                        .WithTotalOf(200)
                        .HavingAddress(DomesticAddress)
                        .Containing(SafeProduct.ThatIsOutOfStock());

            Assert.That(order.IsRush(), Is.False);
        }
        public void IsRush_should_be_true_when_all_conditions_are_met()
        {
            var order = SampleOrder
                        .HavingAddress(DomesticAddress)
                        .WithTotalOf(TwoHundredDollars)
                        .Containing(SafeProduct.ThatIsInStock());

            Assert.That(order.IsRush(), Is.True);
        }