testDeferredStyle: test how reports are translated under deferred style

Report content and also notification subject must be translated.

The attachment filename at this point is not translated, but it would be
nice to have I feel.

product/ERP5OOo/tests/testDeferredStyle.py

@@ -51,8 +51,11 @@ class TestDeferredStyle(ERP5TypeTestCase, ZopeTestCase.Functional):
 
   def getBusinessTemplateList(self):
     return ('erp5_core_proxy_field_legacy',
-            'erp5_base', 'erp5_ods_style',
-            'erp5_odt_style', 'erp5_deferred_style',)
+            'erp5_base',
+            'erp5_ods_style',
+            'erp5_odt_style',
+            'erp5_deferred_style',
+            'erp5_l10n_fr',)
 
   def afterSetUp(self):
     self.login()
@@ -148,6 +151,63 @@ class TestDeferredStyle(ERP5TypeTestCase, ZopeTestCase.Functional):
     else:
       self.fail('Attachment not found in email\n%s' % message_text)
 
+  def test_lang_negociation(self):
+    # User's Accept-Language header is honored in reports.
+    self.loginAsUser('bob')
+    self.portal.changeSkin('Deferred')
+    response = self.publish(
+        '/%s/person_module/pers/Base_viewHistory?deferred_portal_skin=%s'
+        % (self.portal.getId(), self.skin),
+        '%s:%s' % (self.username, self.password),
+        extra={
+          'HTTP_ACCEPT_LANGUAGE': 'fr;q=0.9,en;q=0.8',
+          })
+    self.tic()
+    mail_message = email.message_from_string(self.portal.MailHost._last_message[2])
+    # mail subject is translated
+    self.assertEqual('Historique', mail_message['subject'])
+    # content is translated
+    part, = [x for x in mail_message.walk() if x.get_content_type() == self.content_type]
+    self.assertIn(
+        'Historique',
+        self.portal.portal_transforms.convertTo(
+          'text/plain',
+          part.get_payload(decode=True),
+          context=self.portal,
+          mimetype=self.content_type).getData())
+
+  def test_lang_negociation_cookie(self):
+    # User's LOCALIZER_LANGUAGE cookie is honored in reports and have priority over Accept-Language
+    self.loginAsUser('bob')
+    self.portal.changeSkin('Deferred')
+    response = self.publish(
+        '/%s/person_module/pers/Base_viewHistory?deferred_portal_skin=%s'
+        % (self.portal.getId(), self.skin),
+        '%s:%s' % (self.username, self.password),
+        # user has configured preferred language to english
+        extra={
+          'HTTP_ACCEPT_LANGUAGE': 'en;q=0.9,fr;q=0.8',
+          },
+        # but has forced to french in a Localizer cookie
+        env={
+          'HTTP_COOKIE': 'LOCALIZER_LANGUAGE="fr"',
+          })
+    self.tic()
+    mail_message = email.message_from_string(self.portal.MailHost._last_message[2])
+    # mail subject is translated
+    self.assertEqual('Historique', mail_message['subject'])
+    # content is translated
+    mail_message = email.message_from_string(self.portal.MailHost._last_message[2])
+    part, = [x for x in mail_message.walk() if x.get_content_type() == self.content_type]
+    self.assertIn(
+        'Historique',
+        self.portal.portal_transforms.convertTo(
+          'text/plain',
+          part.get_payload(decode=True),
+          context=self.portal,
+          mimetype=self.content_type).getData())
+
+
 
 class TestODSDeferredStyle(TestDeferredStyle):
   skin = 'ODS'