diff --git a/Lib/test/test_htmlparser.py b/Lib/test/test_htmlparser.py
index fd8447c..b85beab 100644
--- a/Lib/test/test_htmlparser.py
+++ b/Lib/test/test_htmlparser.py
@@ -377,6 +377,30 @@
                              ('endtag', 'html')],
                         collector = self.collector)
 
+    def test_with_unquoted_attributes(self):
+        html = ("<html><body bgcolor=d0ca90 text='181008'>"
+                "<table cellspacing=0 cellpadding=1 width=100% ><tr>"
+                "<td align=left><font size=-1>"
+                "- <a href=/rabota/><span class=en> software-and-i</span></a>"
+                "- <a href='/1/'><span class=en> library</span></a></table>")
+        expected = [
+            ('starttag', 'html', []),
+            ('starttag', 'body', [('bgcolor', 'd0ca90'), ('text', '181008')]),
+            ('starttag', 'table',
+                [('cellspacing', '0'), ('cellpadding', '1'), ('width', '100%')]),
+            ('starttag', 'tr', []),
+            ('starttag', 'td', [('align', 'left')]),
+            ('starttag', 'font', [('size', '-1')]),
+            ('data', '- '), ('starttag', 'a', [('href', '/rabota/')]),
+            ('starttag', 'span', [('class', 'en')]), ('data', ' software-and-i'),
+            ('endtag', 'span'), ('endtag', 'a'),
+            ('data', '- '), ('starttag', 'a', [('href', '/1/')]),
+            ('starttag', 'span', [('class', 'en')]), ('data', ' library'),
+            ('endtag', 'span'), ('endtag', 'a'), ('endtag', 'table')
+        ]
+
+        self._run_check(html, expected, collector=self.collector)
+
     def test_comma_between_attributes(self):
         self._run_check('<form action="/xxx.php?a=1&amp;b=2&amp", '
                         'method="post">', [