Fix tests

Author: ei-grad

elasticutils/contrib/django/tests/__init__.py

@@ -28,8 +28,8 @@ def get(self, pk):
         pk = int(pk)
         return [m for m in _model_cache if m.id == pk][0]
 
-    def filter(self, id__in=None):
-        self.steps.append(('filter', id__in))
+    def filter(self, pk__in=None):
+        self.steps.append(('filter', pk__in))
         return self
 
     def order_by(self, *fields):