public void Test_Save_Truck()
{
IDispatchManager dm = new DispatchManager();
Truck truck = new Truck()
{
Id = 7,
TruckName = "Truck Name is not null "
};
var rs = dm.SaveTruck(truck);
Assert.IsTrue(rs.Ok);
truck = null;
rs = dm.SaveTruck(truck);
Assert.IsTrue((!rs.Ok) && rs.Errors.Contains("truck can not be null"));
truck = new Truck()
{
};
Assert.IsFalse(rs.Ok && rs.Errors.Contains("Truck name is required!"));
}