fixup! test(core.utils): use is_file filter instead of *.* glob in clear test

Author: cpcloud

cuda_core/tests/test_program_cache.py

@@ -1433,7 +1433,10 @@ def test_filestream_cache_clear_preserves_young_tmp_files(tmp_path):
     with FileStreamProgramCache(root) as cache:
         cache.clear()
     # Committed entry is gone, ancient orphan is gone, young temp survives.
-    assert list((root / "entries").rglob("*.*")) == []  # no committed entry files
+    # Filenames are hash-like (no extension), so use a file filter rather
+    # than a "*.*" glob.
+    remaining_entries = [p for p in (root / "entries").rglob("*") if p.is_file()]
+    assert remaining_entries == []
     assert young_tmp.exists()
     assert not ancient_tmp.exists()