gh-95813: Add unittest

corona10 · corona10 · commit b9c4bb350166 · 2022-08-11T14:57:49.000+09:00
diff --git a/Lib/test/test_htmlparser.py b/Lib/test/test_htmlparser.py
@@ -4,6 +4,8 @@
 import pprint
 import unittest
 
+from unittest.mock import patch
+
 
 class EventCollector(html.parser.HTMLParser):
 
@@ -787,5 +789,17 @@ def test_weird_chars_in_unquoted_attribute_values(self):
                             ('starttag', 'form',
                                 [('action', 'bogus|&#()value')])])
 
+
+class TestInheritance(unittest.TestCase):
+
+    @patch("_markupbase.ParserBase.__init__")
+    @patch("_markupbase.ParserBase.reset")
+    def test_init(self, super_init_method, super_reset_method):
+        with patch('_markupbase.ParserBase') as parser_base:
+            a = html.parser.HTMLParser()
+            self.assertTrue(super_init_method.called)
+            self.assertTrue(super_reset_method.called)
+
+
 if __name__ == "__main__":
     unittest.main()
