Skip broken directory entries during discovery

tests/test_discovery.py

@@ -38,3 +38,44 @@ def test_discovery_can_disable_recursion(tmp_path: Path) -> None:
     discovered = discover_files((root,), extensions=("mp4",), recursive=False)
 
     assert [item.path for item in discovered] == [direct]
+
+
+def test_discovery_skips_entries_that_raise_oserror_during_scan() -> None:
+    class FakeStat:
+        st_size = 123
+        st_mtime_ns = 456
+
+    class FakeFileEntry:
+        def __init__(self, name: str) -> None:
+            self.name = name
+            self.suffix = Path(name).suffix
+
+        def is_file(self) -> bool:
+            return True
+
+        def is_dir(self) -> bool:
+            return False
+
+        def stat(self) -> FakeStat:
+            return FakeStat()
+
+    class BrokenEntry:
+        name = "video_2545@25-06-2022_02-52-08.mp4"
+        suffix = ".mp4"
+
+        def is_file(self) -> bool:
+            raise OSError(
+                123,
+                "文件名、目录名或卷标语法不正确。",
+                r"E:\同步东芝1备份用\V4\2022\22-06\6.24-6.25\补充\video_files\video_2545@25-06-2022_02-52-08.mp4",
+            )
+
+    class FakeRoot:
+        def iterdir(self) -> list[object]:
+            return [BrokenEntry(), FakeFileEntry("good.mp4")]
+
+    discovered = discover_files((FakeRoot(),), extensions=("mp4",))
+
+    assert [item.path.name for item in discovered] == ["good.mp4"]
+    assert [item.size for item in discovered] == [123]
+    assert [item.discovery_order for item in discovered] == [0]