refactor autoencoder_magvit tests (#13834)

* refactor autoencoder_magvit tests

* remove unused base_precision

---------

Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

Author: akshan-main

tests/models/autoencoders/test_models_autoencoder_magvit.py

@@ -13,24 +13,38 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest
+import pytest
+import torch
 
 from diffusers import AutoencoderKLMagvit
+from diffusers.utils.torch_utils import randn_tensor
 
-from ...testing_utils import enable_full_determinism, floats_tensor, torch_device
-from ..test_modeling_common import ModelTesterMixin
-from .testing_utils import AutoencoderTesterMixin
+from ...testing_utils import enable_full_determinism, torch_device
+from ..testing_utils import BaseModelTesterConfig, MemoryTesterMixin, ModelTesterMixin, TrainingTesterMixin
+from .testing_utils import NewAutoencoderTesterMixin
 
 
 enable_full_determinism()
 
 
-class AutoencoderKLMagvitTests(ModelTesterMixin, AutoencoderTesterMixin, unittest.TestCase):
-    model_class = AutoencoderKLMagvit
-    main_input_name = "sample"
-    base_precision = 1e-2
+class AutoencoderKLMagvitTesterConfig(BaseModelTesterConfig):
+    @property
+    def model_class(self):
+        return AutoencoderKLMagvit
+
+    @property
+    def main_input_name(self) -> str:
+        return "sample"
+
+    @property
+    def output_shape(self) -> tuple:
+        return (3, 9, 16, 16)
+
+    @property
+    def generator(self):
+        return torch.Generator("cpu").manual_seed(0)
 
-    def get_autoencoder_kl_magvit_config(self):
+    def get_init_dict(self) -> dict:
         return {
             "in_channels": 3,
             "latent_channels": 4,
@@ -53,45 +67,48 @@ def get_autoencoder_kl_magvit_config(self):
             "spatial_group_norm": True,
         }
 
-    @property
-    def dummy_input(self):
+    def get_dummy_inputs(self) -> dict:
         batch_size = 2
         num_frames = 9
         num_channels = 3
         height = 16
         width = 16
-
-        image = floats_tensor((batch_size, num_channels, num_frames, height, width)).to(torch_device)
-
+        image = randn_tensor(
+            (batch_size, num_channels, num_frames, height, width), generator=self.generator, device=torch_device
+        )
         return {"sample": image}
 
-    @property
-    def input_shape(self):
-        return (3, 9, 16, 16)
 
-    @property
-    def output_shape(self):
-        return (3, 9, 16, 16)
+class TestAutoencoderKLMagvit(AutoencoderKLMagvitTesterConfig, ModelTesterMixin):
+    pass
 
-    def prepare_init_args_and_inputs_for_common(self):
-        init_dict = self.get_autoencoder_kl_magvit_config()
-        inputs_dict = self.dummy_input
-        return init_dict, inputs_dict
+
+class TestAutoencoderKLMagvitTraining(AutoencoderKLMagvitTesterConfig, TrainingTesterMixin):
+    """Training tests for AutoencoderKLMagvit."""
 
     def test_gradient_checkpointing_is_applied(self):
         expected_set = {"EasyAnimateEncoder", "EasyAnimateDecoder"}
         super().test_gradient_checkpointing_is_applied(expected_set=expected_set)
 
-    @unittest.skip("Not quite sure why this test fails. Revisit later.")
-    def test_effective_gradient_checkpointing(self):
-        pass
+    @pytest.mark.skip("Not quite sure why this test fails. Revisit later.")
+    def test_gradient_checkpointing_equivalence(self):
+        super().test_gradient_checkpointing_equivalence()
+
+
+class TestAutoencoderKLMagvitMemory(AutoencoderKLMagvitTesterConfig, MemoryTesterMixin):
+    """Memory optimization tests for AutoencoderKLMagvit."""
+
+
+class TestAutoencoderKLMagvitSlicingTiling(AutoencoderKLMagvitTesterConfig, NewAutoencoderTesterMixin):
+    """Slicing and tiling tests for AutoencoderKLMagvit."""
 
-    @unittest.skip("Unsupported test.")
+    @pytest.mark.skip("Unsupported test.")
     def test_forward_with_norm_groups(self):
-        pass
+        super().test_forward_with_norm_groups()
 
-    @unittest.skip(
-        "Unsupported test. Error: RuntimeError: Sizes of tensors must match except in dimension 0. Expected size 9 but got size 12 for tensor number 1 in the list."
+    @pytest.mark.skip(
+        "Unsupported test. Error: RuntimeError: Sizes of tensors must match except in dimension 0. "
+        "Expected size 9 but got size 12 for tensor number 1 in the list."
     )
     def test_enable_disable_slicing(self):
-        pass
+        super().test_enable_disable_slicing()