#13358: HTMLParser now calls handle_data only once for each CDATA.

1 files changed, 21 insertions, 1 deletions

diff --git a/Lib/test/test_htmlparser.py b/Lib/test/test_htmlparser.py
index 1ce4594..87b5060 100644
--- a/Lib/test/test_htmlparser.py
+++ b/Lib/test/test_htmlparser.py
@@ -301,7 +301,27 @@ DOCTYPE html [
                                     ("data", content),
                                     ("endtag", element_lower)])
 
-
+    def test_cdata_with_closing_tags(self):
+        # see issue #13358
+        # make sure that HTMLParser calls handle_data only once for each CDATA.
+        # The normal event collector normalizes  the events in get_events,
+        # so we override it to return the original list of events.
+        class Collector(EventCollector):
+            def get_events(self):
+                return self.events
+
+        content = """<!-- not a comment --> &not-an-entity-ref;
+                  <a href="" /> </p><p> <span></span></style>
+                  '</script' + '>'"""
+        for element in [' script', 'script ', ' script ',
+                        '\nscript', 'script\n', '\nscript\n']:
+            element_lower = element.lower().strip()
+            s = '<script>{content}</{element}>'.format(element=element,
+                                                       content=content)
+            self._run_check(s, [("starttag", element_lower, []),
+                                ("data", content),
+                                ("endtag", element_lower)],
+                            collector=Collector())
 
 class HTMLParserTolerantTestCase(HTMLParserStrictTestCase):