diff --git a/plinth/tests/test_templatetags.py b/plinth/tests/test_templatetags.py
index 9068daecd..45bfc8396 100644
--- a/plinth/tests/test_templatetags.py
+++ b/plinth/tests/test_templatetags.py
@@ -18,49 +18,45 @@
 Test module for custom Django template tags.
 """
 
-import unittest
-
 from plinth.templatetags import plinth_extras
 
 
-class TestShowSubSubMenu(unittest.TestCase):
-    """Verify that the highlighting of the subsubmenu is working correctly"""
+def _assert_active_url(menu, url):
+    """Verify that only the given url is set as 'active' in the menu"""
+    for item in menu:
+        if item['url'] == url:
+            assert item['active']
+        else:
+            assert not item['active']
 
-    def assert_active_url(self, menu, url):
-        """Verify that only the given url is set as 'active' in the menu"""
-        for item in menu:
-            if item['url'] == url:
-                self.assertTrue(item['active'])
-            else:
-                self.assertFalse(item['active'])
 
-    @staticmethod
-    def _verify_active_menuitems(menu):
-        """Verify that one and only one menuitem is marked as active"""
-        return sum([item['active'] for item in menu]) == 1
+def _verify_active_menuitems(menu):
+    """Verify that one and only one menuitem is marked as active"""
+    return sum([item['active'] for item in menu]) == 1
 
-    def test_highlighting(self):
-        """Test detection of active subsubmenu items using request.path"""
-        menu = [{
-            'url': '/abc/123/abc/',
-            'text': 'abc'
-        }, {
-            'url': '/abc/123/',
-            'text': 'overview'
-        }, {
-            'url': '/abc/123/crunch/',
-            'text': 'crunch'
-        }, {
-            'url': '/abc/123/create/',
-            'text': 'create'
-        }]
 
-        tests = [['/abc/123/crunch/new/', '/abc/123/crunch/'], [
-            '/abc/123/create/', '/abc/123/create/'
-        ], ['/abc/123/nolink/', '/abc/123/'], ['/abc/123/abx/', '/abc/123/'],
-                 ['/abc/123/ab/', '/abc/123/'], ['/abc/123/', '/abc/123/']]
+def test_highlighting():
+    """Test detection of active subsubmenu items using request.path"""
+    menu = [{
+        'url': '/abc/123/abc/',
+        'text': 'abc'
+    }, {
+        'url': '/abc/123/',
+        'text': 'overview'
+    }, {
+        'url': '/abc/123/crunch/',
+        'text': 'crunch'
+    }, {
+        'url': '/abc/123/create/',
+        'text': 'create'
+    }]
 
-        for check_path, expected_active_path in tests:
-            menu = plinth_extras.mark_active_menuitem(menu, check_path)
-            self.assert_active_url(menu, expected_active_path)
-            self.assertTrue(self._verify_active_menuitems(menu))
+    tests = [['/abc/123/crunch/new/', '/abc/123/crunch/'], [
+        '/abc/123/create/', '/abc/123/create/'
+    ], ['/abc/123/nolink/', '/abc/123/'], ['/abc/123/abx/', '/abc/123/'],
+             ['/abc/123/ab/', '/abc/123/'], ['/abc/123/', '/abc/123/']]
+
+    for check_path, expected_active_path in tests:
+        menu = plinth_extras.mark_active_menuitem(menu, check_path)
+        _assert_active_url(menu, expected_active_path)
+        assert _verify_active_menuitems(menu)