default mapping of translation is not same with chameleon (Zope4)

bt5/erp5_core_test/TestTemplateItem/portal_components/test.erp5.testERP5Core.py

@@ -96,6 +96,13 @@ if 1: # BBB
       sm.registerUtility(ui_domain, ITranslationDomain, 'ui')
       del portal._save_ui_domain
 
+try:
+  import chameleon
+  EXPECTED_TRANSLATION_MAPPING = None
+except ImportError:
+  # BBB in zope2 talinterpreter is setting mapping to {}
+  EXPECTED_TRANSLATION_MAPPING = {}
+
 HTTP_OK = 200
 HTTP_UNAUTHORIZED = 401
 HTTP_REDIRECT = 302
@@ -335,7 +342,7 @@ class TestERP5Core(ERP5TypeTestCase, ZopeTestCase.Functional):
     response = self.publish('%s/portal_templates' %
                                 self.portal_id, self.auth)
     self.assertEqual(HTTP_OK, response.getStatus())
-    self.assertTrue(('Business Template', {})
+    self.assertTrue(('Business Template', EXPECTED_TRANSLATION_MAPPING)
                     in translation_service._translated['ui'])
     self.assertTrue(
       ('Add ${portal_type}', {'portal_type': 'Business Template'}) in
@@ -355,7 +362,7 @@ class TestERP5Core(ERP5TypeTestCase, ZopeTestCase.Functional):
     response = self.publish('%s/portal_templates' %
                             self.portal_id, self.auth)
     self.assertEqual(HTTP_OK, response.getStatus())
-    self.assertTrue(('Dummy Jump Action', {}) in
+    self.assertTrue(('Dummy Jump Action', EXPECTED_TRANSLATION_MAPPING) in
                       translation_service._translated['ui'])
 
   def test_error_log(self):