1 files changed, 6 insertions, 1 deletions
diff --git a/Lib/test/test_htmlparser.py b/Lib/test/test_htmlparser.py
index 64a4f5d..c5d878d 100644
--- a/Lib/test/test_htmlparser.py
+++ b/Lib/test/test_htmlparser.py
@@ -456,7 +456,7 @@ class HTMLParserTolerantTestCase(HTMLParserStrictTestCase):
         self._run_check('<form action="/xxx.php?a=1&amp;b=2&amp", '
                         'method="post">', [
                             ('starttag', 'form',
-                                [('action', '/xxx.php?a=1&b=2&amp'),
+                                [('action', '/xxx.php?a=1&b=2&'),
                                  (',', None), ('method', 'post')])])
 
     def test_weird_chars_in_unquoted_attribute_values(self):
@@ -541,6 +541,11 @@ class HTMLParserTolerantTestCase(HTMLParserStrictTestCase):
         self.assertEqual(p.unescape('&#0038;'),'&')
         # see #12888
         self.assertEqual(p.unescape('&#123; ' * 1050), '{ ' * 1050)
+        # see #15156
+        self.assertEqual(p.unescape('&Eacuteric&Eacute;ric'
+                                    '&alphacentauri&alpha;centauri'),
+                                    'ÉricÉric&alphacentauriαcentauri')
+        self.assertEqual(p.unescape('&co;'), '&co;')
 
     def test_broken_comments(self):
         html = ('<! not really a comment >'