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import inspect
from diffusers.utils import is_flax_available
from diffusers.utils.testing_utils import require_flax
if is_flax_available():
import jax
@require_flax
class FlaxModelTesterMixin:
def test_output(self):
init_dict, inputs_dict = self.prepare_init_args_and_inputs_for_common()
model = self.model_class(**init_dict)
variables = model.init(inputs_dict["prng_key"], inputs_dict["sample"])
jax.lax.stop_gradient(variables)
output = model.apply(variables, inputs_dict["sample"])
if isinstance(output, dict):
output = output.sample
self.assertIsNotNone(output)
expected_shape = inputs_dict["sample"].shape
self.assertEqual(output.shape, expected_shape, "Input and output shapes do not match")
def test_forward_with_norm_groups(self):
init_dict, inputs_dict = self.prepare_init_args_and_inputs_for_common()
init_dict["norm_num_groups"] = 16
init_dict["block_out_channels"] = (16, 32)
model = self.model_class(**init_dict)
variables = model.init(inputs_dict["prng_key"], inputs_dict["sample"])
jax.lax.stop_gradient(variables)
output = model.apply(variables, inputs_dict["sample"])
if isinstance(output, dict):
output = output.sample
self.assertIsNotNone(output)
expected_shape = inputs_dict["sample"].shape
self.assertEqual(output.shape, expected_shape, "Input and output shapes do not match")
def test_deprecated_kwargs(self):
has_kwarg_in_model_class = "kwargs" in inspect.signature(self.model_class.__init__).parameters
has_deprecated_kwarg = len(self.model_class._deprecated_kwargs) > 0
if has_kwarg_in_model_class and not has_deprecated_kwarg:
raise ValueError(
f"{self.model_class} has `**kwargs` in its __init__ method but has not defined any deprecated kwargs"
" under the `_deprecated_kwargs` class attribute. Make sure to either remove `**kwargs` if there are"
" no deprecated arguments or add the deprecated argument with `_deprecated_kwargs ="
" [<deprecated_argument>]`"
)
if not has_kwarg_in_model_class and has_deprecated_kwarg:
raise ValueError(
f"{self.model_class} doesn't have `**kwargs` in its __init__ method but has defined deprecated kwargs"
" under the `_deprecated_kwargs` class attribute. Make sure to either add the `**kwargs` argument to"
f" {self.model_class}.__init__ if there are deprecated arguments or remove the deprecated argument"
" from `_deprecated_kwargs = [<deprecated_argument>]`"
)
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