public void FindVehiclesByOwnerTest()
        {
            VehicleParkCommands testObject = new VehicleParkCommands();

            //If the owner is not given
            testObject.FindVehiclesByOwner("");
        }
        public void FindVehiclesByOwnerTest1()
        {
            Mock <IVehicle> mock = new Mock <IVehicle>();

            mock.Setup(v => v.Owner).Returns("John Snow");

            VehicleParkCommands testObject = new VehicleParkCommands();
            //If the owner is not given
            var result = testObject.FindVehiclesByOwner("John Snow", new List <Mock <IVehicle> >()
            {
                mock
            });

            Assert.AreEqual(result, "John Snow");
        }