From d01872ccdf7e1e5e825b6c6292b43e7d27ae5fc4 Mon Sep 17 00:00:00 2001
From: Stefan Behnel <stefan_ml@behnel.de>
Date: Fri, 1 Jul 2022 21:19:44 +0200
Subject: [PATCH] Prevent parse failure in new test from leaking into later
 test runs.

---
 src/lxml/tests/test_etree.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/lxml/tests/test_etree.py b/src/lxml/tests/test_etree.py
index 285313f6e..3e52258ed 100644
--- a/src/lxml/tests/test_etree.py
+++ b/src/lxml/tests/test_etree.py
@@ -1463,14 +1463,16 @@ def test_iterwalk_getiterator(self):
     def test_walk_after_parse_failure(self):
         # This used to be an issue because libxml2 can leak empty namespaces
         # between failed parser runs.  iterwalk() failed to handle such a tree.
+        parser = etree.XMLParser()
+
         try:
-            etree.XML('''<anot xmlns="1">''')
+            etree.XML('''<anot xmlns="1">''', parser=parser)
         except etree.XMLSyntaxError:
             pass
         else:
             assert False, "invalid input did not fail to parse"
 
-        et = etree.XML('''<root>  </root>''')
+        et = etree.XML('''<root>  </root>''', parser=parser)
         try:
             ns = next(etree.iterwalk(et, events=('start-ns',)))
         except StopIteration: