diff --git a/dav_base/tests/test_templatetags.py b/dav_base/tests/test_templatetags.py
index 8ee4cdc..0e1e931 100644
--- a/dav_base/tests/test_templatetags.py
+++ b/dav_base/tests/test_templatetags.py
@@ -6,18 +6,23 @@ from django.test import SimpleTestCase
 class TemplateTagsTestCase(SimpleTestCase):
     def test_include_if_exist_without_argument(self):
         template_name = 'dav_base/tests/include_if_exist_without_argument.html'
-        with self.assertRaises(TemplateSyntaxError):
+        with self.assertRaises(TemplateSyntaxError) as cm:
             get_template(template_name)
+        self.assertEqual(str(cm.exception), '\'include_if_exist\' tag takes at least one argument:'
+                                            ' the name of the template to be included')
 
     def test_include_if_exist_with_unexpected_argument(self):
         template_name = 'dav_base/tests/include_if_exist_with_unexpected_argument.html'
-        with self.assertRaises(TemplateSyntaxError):
+        with self.assertRaises(TemplateSyntaxError) as cm:
             get_template(template_name)
+        self.assertEqual(str(cm.exception), 'Unknown argument for \'include_if_exist\' tag: "\'bogus\'".')
 
     def test_include_if_exist_default_without_argument(self):
         template_name = 'dav_base/tests/include_if_exist_default_without_argument.html'
-        with self.assertRaises(TemplateSyntaxError):
+        with self.assertRaises(TemplateSyntaxError) as cm:
             get_template(template_name)
+        self.assertEqual(str(cm.exception), '\'default\' keyword in \'include_if_exist\' tag requires another arguments:'
+                                            ' the name of the default template')
 
     def test_include_if_exist_default_missing(self):
         template_name = 'dav_base/tests/include_if_exist_default_missing.html'