fix tests

Author: hauntsaninja

tests/lib/__init__.py

@@ -1168,7 +1168,7 @@ def create_basic_wheel_for_package(
     name: str,
     version: str,
     depends: Optional[List[str]] = None,
-    extras: Dict[str, List[str]] = None,
+    extras: Optional[Dict[str, List[str]]] = None,
     requires_python: Optional[str] = None,
     extra_files: Optional[Dict[str, Union[bytes, str]]] = None,
 ) -> pathlib.Path:

tests/unit/test_req_file.py

@@ -60,8 +60,8 @@ def options(session: PipSession) -> mock.Mock:
 def parse_reqfile(
     filename: Union[Path, str],
     session: PipSession,
-    finder: PackageFinder = None,
-    options: Values = None,
+    finder: Optional[PackageFinder] = None,
+    options: Optional[Values] = None,
     constraint: bool = False,
     isolated: bool = False,
 ) -> Iterator[InstallRequirement]: