Stopped HTMLParser from raising an exception in very rare cases of

  bad markup. [bug=1708831]

1 files changed, 10 insertions, 0 deletions

diff --git a/bs4/tests/test_htmlparser.py b/bs4/tests/test_htmlparser.py
index d5cf025..c13d59f 100644
--- a/bs4/tests/test_htmlparser.py
+++ b/bs4/tests/test_htmlparser.py
@@ -5,6 +5,7 @@ from pdb import set_trace
 import pickle
 from bs4.testing import SoupTest, HTMLTreeBuilderSmokeTest
 from bs4.builder import HTMLParserTreeBuilder
+from bs4.builder._htmlparser import BeautifulSoupHTMLParser
 
 class HTMLParserTreeBuilderSmokeTest(SoupTest, HTMLTreeBuilderSmokeTest):
 
@@ -32,3 +33,12 @@ class HTMLParserTreeBuilderSmokeTest(SoupTest, HTMLTreeBuilderSmokeTest):
     def test_redundant_empty_element_closing_tags(self):
         self.assertSoupEquals('<br></br><br></br><br></br>', "<br/><br/><br/>")
         self.assertSoupEquals('</br></br></br>', "")
+
+
+class TestHTMLParserSubclass(SoupTest):
+    def test_error(self):
+        """Verify that our HTMLParser subclass implements error() in a way
+        that doesn't cause a crash.
+        """
+        parser = BeautifulSoupHTMLParser()
+        parser.error("don't crash")