coverage++

tests/compat.py

@@ -19,7 +19,7 @@ def _enter_context(cm: Any, addcleanup: Callable[..., None]) -> Any:
         try:
             enter = cls.__enter__
             exit = cls.__exit__
-        except AttributeError:
+        except AttributeError:  # pragma: no cover
             raise TypeError(
                 f"'{cls.__module__}.{cls.__qualname__}' object does "
                 f"not support the context manager protocol"

tests/test_django_watchfiles.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import tempfile
+import time
 from pathlib import Path
 
 from django.utils import autoreload
@@ -33,6 +34,18 @@ def test_stop(self):
         self.watcher.stop()
         assert self.watcher.stop_event.is_set()
 
+    def test_iter_no_changes(self):
+        (self.temp_path / "test.txt").touch()
+        self.watcher.set_roots({self.temp_path})
+        iterator = iter(self.watcher)
+        # flush initial events
+        next(iterator)
+        time.sleep(0.1)  # 100ms Rust timeout
+
+        changes = next(iterator)
+
+        assert changes == set()
+
     def test_iter_yields_changes(self):
         (self.temp_path / "test.txt").touch()
         self.watcher.set_roots({self.temp_path})