test code coverage progress

document_page/tests/__init__.py

@@ -2,3 +2,4 @@
 
 from . import test_document_page, test_document_page_history
 from . import test_document_page_create_menu
+from . import test_document_page_show_diff

document_page/tests/test_document_page_show_diff.py

@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+
+from openerp.tests import common
+from openerp import _
+
+
+class TestDocumentPageShowDiff(common.TransactionCase):
+    """document_page_show_diff test class."""
+
+    def test_show_demo_page1_diff(self):
+        """Show test page history difference."""
+        page = self.env.ref('document_page.demo_page1')
+
+        show_diff_object = self.env['wizard.document.page.history.show_diff']
+
+        history_document = self.env['document.page.history']
+        history_pages = history_document.search([('page_id', '=', page.id)])
+
+        self.assertEqual(len([i.id for i in history_pages]), 2)
+
+        self.assertTrue(show_diff_object.with_context(
+                active_ids=[i.id for i in history_pages]
+            ).get_diff())
+
+        page.content = 'Test content updated'
+
+        history_pages = history_document.search([('page_id', '=', page.id)])
+
+        self.assertEqual(len([i.id for i in history_pages]), 1)
+
+        with self.assertRaises(Exception) as context:
+            show_diff_object.with_context(
+                    active_ids=[i.id for i in history_pages]
+                ).get_diff()
+
+        self.assertTrue(_("You need to select minimum one or maximum two history revisions!") in context.exception)

document_page/wizard/document_page_show_diff.py

@@ -48,8 +48,7 @@ class DocumentPageShowDiff(models.TransientModel):
             diff = history.getDiff(ids[0], nids.id)
         else:
             raise exceptions.Warning(
-                _("You need to select minimum one or maximum "
+                _("You need to select minimum one or maximum two history revisions!")
-                  "two history revisions!")
             )
         return diff