Make the fix for config used for testdir simpler

- taken from ftobia/pytest-ordering#76

Author: mrbean-bremen

pytest_order/__init__.py

@@ -146,9 +146,7 @@ def mark_binning(item, keys, start, end, before, after, dep, unordered, alias):
 
     if "order" in keys:
         mark = item.get_closest_marker("order")
-        order = mark.args[0] if mark.args else None
-        if order is None:
-            order = mark.kwargs.get("index")
+        order = mark.args[0] if mark.args else mark.kwargs.get("index")
         before_mark = mark.kwargs.get("before")
         after_mark = mark.kwargs.get("after")
         if order is not None:

tests/conftest.py

@@ -6,12 +6,12 @@
 
 
 @pytest.fixture
-def item_names_for(request, testdir):
+def item_names_for(testdir):
     def _item_names_for(tests_content):
         items = testdir.getitems(tests_content)
-        hook = request.config.hook
+        hook = items[0].config.hook
         hook.pytest_collection_modifyitems(session=items[0].session,
-                                           config=request.config, items=items)
+                                           config=items[0].config, items=items)
         return [item.name for item in items]
 
     return _item_names_for