Fix menu test cases by not reseting the entire menu class cache,

but only specific temporary test menus.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/navigation/classes.py

@@ -62,8 +62,8 @@ class Menu(object):
         return cls._registry[name]
 
     @classmethod
-    def reset(cls):
-        cls._registry = {}
+    def remove(cls, name):
+        del cls._registry[name]
 
     def __init__(self, name, icon=None, label=None):
         if name in self.__class__._registry:

mayan/apps/navigation/tests/test_classes.py

@@ -121,12 +121,16 @@ class MenuClassTestCase(GenericViewTestCase):
             name=TEST_PERMISSION_NAME, label=TEST_PERMISSION_LABEL
         )
 
-        Menu.reset()
         self.menu = Menu(name=TEST_MENU_NAME)
         self.sub_menu = Menu(name=TEST_SUBMENU_NAME)
         self.link = Link(text=TEST_LINK_TEXT, view=TEST_VIEW_NAME)
         Permission.invalidate_cache()
 
+    def tearDown(self):
+        Menu.remove(name=TEST_MENU_NAME)
+        Menu.remove(name=TEST_SUBMENU_NAME)
+        super(MenuClassTestCase, self).tearDown()
+
     def test_null_source_link_unbinding(self):
         self.menu.bind_links(links=(self.link,))