def test_torchcript_invalid_method(tmpdir):
"""Test that an error is thrown with invalid torchscript method"""
model = BoringModel()
model.train(True)
with pytest.raises(ValueError, match="only supports 'script' or 'trace'"):
model.to_torchscript(method='temp')
def test_torchscript_retain_training_state():
""" Test that torchscript export does not alter the training mode of original model. """
model = BoringModel()
model.train(True)
script = model.to_torchscript()
assert model.training
assert not script.training
model.train(False)
_ = model.to_torchscript()
assert not model.training
assert not script.training
