public void whenWritingShipments_readingThemAgainMustReturnTheWrittenLocationCoordOfS1(){
Builder builder = VehicleRoutingProblem.Builder.newInstance();
VehicleTypeImpl type1 = VehicleTypeImpl.Builder.newInstance("vehType").addCapacityDimension(0, 20).build();
VehicleTypeImpl type2 = VehicleTypeImpl.Builder.newInstance("vehType2").addCapacityDimension(0, 200).build();
VehicleImpl v1 = VehicleImpl.Builder.newInstance("v1").setStartLocationId("loc").setType(type1).build();
VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setStartLocationId("loc").setType(type2).build();
builder.addVehicle(v1);
builder.addVehicle(v2);
Shipment s1 = Shipment.Builder.newInstance("1").addSizeDimension(0, 10).setPickupCoord(Coordinate.newInstance(1, 2)).setDeliveryCoord(Coordinate.newInstance(5, 6)).setDeliveryLocationId("delLoc").setPickupTimeWindow(TimeWindow.newInstance(1, 2))