Harden latent upscale GPU cleanup

tests/test_dumas_h3_longvideos.py

@@ -374,6 +374,7 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
         original_upscale = self.module._upscale_latent_video
         original_copy_sample = self.module._copy_sample_latent
         original_unload = getattr(self.module.mm, "unload_model_and_clones", None)
+        original_unload_all = self.module.mm.unload_all_models
         original_nested = getattr(self.module.comfy.nested_tensor, "NestedTensor", None)
         try:
             self.module.comfy.nested_tensor.NestedTensor = FakeNestedTensor
@@ -397,7 +398,11 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
                 order.append("cleanup")
 
             def unload_model_and_clones(*_args, **_kwargs):
-                order.append("unload_h3")
+                order.append("unload_h3_failed")
+                raise RuntimeError("model wrapper does not expose clone metadata")
+
+            def unload_all_models(*_args, **_kwargs):
+                order.append("unload_all")
 
             def upscale_latent_video(video, param):
                 order.append("upscale")
@@ -410,6 +415,7 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
             )
             self.module._evict_all_but = lambda *_args, **_kwargs: None
             self.module.mm.unload_model_and_clones = unload_model_and_clones
+            self.module.mm.unload_all_models = unload_all_models
             self.module._upscale_latent_video = upscale_latent_video
             self.module._copy_sample_latent = lambda sampled: sampled["samples"].unbind()
             self.module._decode_video = decode_video
@@ -417,7 +423,7 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
             self.module._deep_cleanup = cleanup
 
             self.module.H3LongVideos()._render(
-                model=types.SimpleNamespace(clone_base_uuid="h3"),
+                model=object(),
                 clip=types.SimpleNamespace(
                     tokenize=lambda text, **kwargs: text,
                     encode_from_tokens_scheduled=lambda tokens: tokens,
@@ -447,7 +453,7 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
             )
 
             self.assertEqual(order[0], "sample")
-            self.assertLess(order.index("unload_h3"), order.index("upscale"))
+            self.assertLess(order.index("unload_all"), order.index("upscale"))
             self.assertLess(order.index("upscale"), order.index("latent_upscale_sample"))
             self.assertLess(order.index("audio"), order.index("video"))
             self.assertEqual(order[-1], "cleanup")
@@ -464,6 +470,7 @@ class DumasH3LongVideosHelperTests(unittest.TestCase):
                 delattr(self.module.mm, "unload_model_and_clones")
             else:
                 self.module.mm.unload_model_and_clones = original_unload
+            self.module.mm.unload_all_models = original_unload_all
             if original_nested is None:
                 delattr(self.module.comfy.nested_tensor, "NestedTensor")
             else: