ADD: dav_base: added test for template tag include_if_exist.

dav_base/tests/test_templatetags.py

@@ -0,0 +1,61 @@
+from django.template.exceptions import TemplateSyntaxError, TemplateDoesNotExist
+from django.template.loader import get_template
+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):
+            get_template(template_name)
+
+    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):
+            get_template(template_name)
+
+    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):
+            get_template(template_name)
+
+    def test_include_if_exist_default_missing(self):
+        template_name = 'dav_base/tests/include_if_exist_default_missing.html'
+        with self.settings(DEBUG=True):
+            with self.assertRaises(TemplateDoesNotExist):
+                template = get_template(template_name)
+                template.render()
+
+    def test_include_if_exist(self):
+        template_name = 'dav_base/tests/include_if_exist.html'
+        template = get_template(template_name)
+
+        content = template.render()
+        expected_content = """
+----
+--DEFAULT INCLUDED HTML--
+--OPTIONAL INCLUDED HTML--
+--OPTIONAL INCLUDED HTML--
+--
+----
+--
+"""
+
+        self.assertEqual(content, expected_content)
+
+    def test_include_if_exist_while_debug(self):
+        template_name = 'dav_base/tests/include_if_exist.html'
+
+        with self.settings(DEBUG=True):
+            template = get_template(template_name)
+
+            content = template.render()
+            expected_content = """
+----
+--DEFAULT INCLUDED HTML--
+--OPTIONAL INCLUDED HTML--
+--OPTIONAL INCLUDED HTML--
+----
+"""
+
+            self.assertEqual(content, expected_content)