load mapping test

common/lib/xmodule/xmodule/modulestore/django.py

@@ -123,6 +123,8 @@ def load_function(path):
     return getattr(import_module(module_path), name)
 
 
+load_function_mapping = {}
+
 def create_modulestore_instance(
         engine,
         content_store,
@@ -136,7 +138,11 @@ def create_modulestore_instance(
     """
     This will return a new instance of a modulestore given an engine and options
     """
+    if engine in load_function_mapping:
+        class_ = load_function_mapping[engine]
+    else:
         class_ = load_function(engine)
+        load_function_mapping[engine] = class_
 
     _options = {}
     _options.update(options)