Move the test out of doctest. Still doesn't capture failure.

Author: jaraco

importlib_metadata/_meta.py

@@ -33,10 +33,6 @@ def json(self) -> Dict[str, Union[str, List[str]]]:
 class SimplePath(Protocol):
     """
     A minimal subset of pathlib.Path required by PathDistribution.
-
-    >>> import pathlib
-    >>> import typing
-    >>> _: SimplePath = typing.cast(pathlib.Path, None)
     """
 
     def joinpath(self) -> 'SimplePath':

tests/test_meta.py

@@ -0,0 +1,9 @@
+import typing
+import pathlib
+
+from importlib_metadata import _meta
+
+
+class TestSimplePath:
+    def test_cast_from_Path(self):
+        _: _meta.SimplePath = typing.cast(pathlib.Path, None)