Fix typos and inconsistencies (#12204)

Fix typos and test assertions
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

docs/source/en/using-diffusers/text-img2vid.md

@@ -287,7 +287,7 @@ export_to_video(output, "output.mp4", fps=16)
 
 ## Reduce memory usage
 
-Recent video models like [`HunyuanVideoPipeline`] and [`WanPipeline`], which have 10B+ parameters, require a lot of memory and it often exceeds the memory availabe on consumer hardware. Diffusers offers several techniques for reducing the memory requirements of these large models.
+Recent video models like [`HunyuanVideoPipeline`] and [`WanPipeline`], which have 10B+ parameters, require a lot of memory and it often exceeds the memory available on consumer hardware. Diffusers offers several techniques for reducing the memory requirements of these large models.
 
 > [!TIP]
 > Refer to the [Reduce memory usage](../optimization/memory) guide for more details about other memory saving techniques.

src/diffusers/utils/import_utils.py

@@ -70,10 +70,11 @@ def _is_package_available(pkg_name: str, get_dist_name: bool = False) -> Tuple[b
                 # Fallback for Python < 3.10
                 for dist in importlib_metadata.distributions():
                     _top_level_declared = (dist.read_text("top_level.txt") or "").split()
-                    _infered_opt_names = {
+                    # Infer top-level package names from file structure
+                    _inferred_opt_names = {
                         f.parts[0] if len(f.parts) > 1 else inspect.getmodulename(f) for f in (dist.files or [])
                     } - {None}
-                    _top_level_inferred = filter(lambda name: "." not in name, _infered_opt_names)
+                    _top_level_inferred = filter(lambda name: "." not in name, _inferred_opt_names)
                     for pkg in _top_level_declared or _top_level_inferred:
                         _package_map[pkg].append(dist.metadata["Name"])
             except Exception as _:
@@ -119,7 +120,7 @@ if USE_SAFETENSORS in ENV_VARS_TRUE_AND_AUTO_VALUES:
     _safetensors_available, _safetensors_version = _is_package_available("safetensors")
 
 else:
-    logger.info("Disabling Safetensors because USE_TF is set")
+    logger.info("Disabling Safetensors because USE_SAFETENSORS is set")
     _safetensors_available = False
 
 _onnxruntime_version = "N/A"

tests/hooks/test_hooks.py

@@ -219,6 +219,7 @@ class HookTests(unittest.TestCase):
 
         self.assertAlmostEqual(output1, output2, places=5)
         self.assertAlmostEqual(output1, output3, places=5)
+        self.assertAlmostEqual(output2, output3, places=5)
 
     def test_skip_layer_hook(self):
         registry = HookRegistry.check_if_exists_or_initialize(self.model)