def test_thor():
        from mindspore.nn.optim import thor
        from mindspore.train.model import Model
        from mindspore.train.loss_scale_manager import FixedLossScaleManager
        from mindspore.train.callback import LossMonitor, TimeMonitor

        net = Net()
>       optim = thor(net, lr=Tensor(1e-3), damping=Tensor(1e-3), momentum=0.9)
E       TypeError: thor() got an unexpected keyword argument 'lr'

    def test_convert_to_thor_model():
        from mindspore.nn.optim import thor
        from mindspore.train.model import Model
        from mindspore.train.loss_scale_manager import FixedLossScaleManager

        net = Net()
        loss_manager = FixedLossScaleManager(128, drop_overflow_update=False)
>       opt = thor(net, lr, damping, momentum=0.9, weight_decay=1e-4, loss_scale=128, batch_size=32,
                   frequency=100)
E       NameError: name 'lr' is not defined