public void Factory_Should_Return_InsuranceDepartment_For_Parcel()
{
DepartmentFactory f = new DepartmentFactory();
var parcel = new Parcel(1001, 1);
Assert.Equal(typeof(InsuranceDepartment), f.Get(parcel).GetType());
}
public void Factory_Should_Return_HeavyDepartment_For_Parcel()
{
DepartmentFactory f = new DepartmentFactory();
var parcel = new Parcel(1, 11);
Assert.Equal(typeof(HeavyDepartment), f.Get(parcel).GetType());
}