public void GivenCustomerShipment_WhenAddingAndRemovingPackages_ThenPackageSequenceNumberIsRecalculated()
{
var shipment = new CustomerShipmentBuilder(this.DatabaseSession)
.WithShipToAddress(new PostalAddresses(this.DatabaseSession).Extent().First)
.WithShipToParty(new Organisations(this.DatabaseSession).Extent().First)
.WithShipmentMethod(new ShipmentMethods(this.DatabaseSession).Boat)
.Build();
var package1 = new ShipmentPackageBuilder(this.DatabaseSession).Build();
shipment.AddShipmentPackage(package1);
this.DatabaseSession.Derive(true);
Assert.AreEqual(1, package1.SequenceNumber);
var package2 = new ShipmentPackageBuilder(this.DatabaseSession).Build();
shipment.AddShipmentPackage(package2);
this.DatabaseSession.Derive(true);
Assert.AreEqual(2, package2.SequenceNumber);
var package3 = new ShipmentPackageBuilder(this.DatabaseSession).Build();
shipment.AddShipmentPackage(package3);
this.DatabaseSession.Derive(true);
Assert.AreEqual(3, package3.SequenceNumber);
shipment.RemoveShipmentPackage(package1);
this.DatabaseSession.Derive(true);
Assert.AreEqual(2, package2.SequenceNumber);
Assert.AreEqual(3, package3.SequenceNumber);
var package4 = new ShipmentPackageBuilder(this.DatabaseSession).Build();
shipment.AddShipmentPackage(package4);
this.DatabaseSession.Derive(true);
Assert.AreEqual(2, package2.SequenceNumber);
Assert.AreEqual(3, package3.SequenceNumber);
Assert.AreEqual(4, package4.SequenceNumber);
shipment.RemoveShipmentPackage(package4);
this.DatabaseSession.Derive(true);
var package5 = new ShipmentPackageBuilder(this.DatabaseSession).Build();
shipment.AddShipmentPackage(package5);
this.DatabaseSession.Derive(true);
Assert.AreEqual(2, package2.SequenceNumber);
Assert.AreEqual(3, package3.SequenceNumber);
Assert.AreEqual(4, package5.SequenceNumber);
}
