[IMP] base: tests, move patch_order to TransactionCase

In order to be able to redefine simply the order
of a model for testing purposes,
without having to re-define this method in each test class.

openerp/addons/base/tests/test_search.py

@@ -5,18 +5,6 @@ import openerp.tests.common as common
 
 class test_search(common.TransactionCase):
 
-    def patch_order(self, model, order):
-        m_e = self.env[model]
-        m_r = self.registry(model)
-
-        old_order = m_e._order
-
-        @self.addCleanup
-        def cleanup():
-            m_r._order = type(m_e)._order = old_order
-
-        m_r._order = type(m_e)._order = order
-
     def test_00_search_order(self):
 
         registry, cr, uid = self.registry, self.cr, self.uid

openerp/tests/common.py

@@ -150,6 +150,18 @@ class TransactionCase(BaseCase):
         self.cr.rollback()
         self.cr.close()
 
+    def patch_order(self, model, order):
+        m_e = self.env[model]
+        m_r = self.registry(model)
+
+        old_order = m_e._order
+
+        @self.addCleanup
+        def cleanup():
+            m_r._order = type(m_e)._order = old_order
+
+        m_r._order = type(m_e)._order = order
+
 
 class SingleTransactionCase(BaseCase):
     """ TestCase in which all test methods are run in the same transaction,