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-rw-r--r--Lib/test/test_xml_etree.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py
index 00db44c..def1b61 100644
--- a/Lib/test/test_xml_etree.py
+++ b/Lib/test/test_xml_etree.py
@@ -1793,6 +1793,11 @@ class ElementFindTest(unittest.TestCase):
self.assertEqual(e.find('./tag[last()-1]').attrib['class'], 'c')
self.assertEqual(e.find('./tag[last()-2]').attrib['class'], 'b')
+ self.assertRaisesRegex(SyntaxError, 'XPath', e.find, './tag[0]')
+ self.assertRaisesRegex(SyntaxError, 'XPath', e.find, './tag[-1]')
+ self.assertRaisesRegex(SyntaxError, 'XPath', e.find, './tag[last()-0]')
+ self.assertRaisesRegex(SyntaxError, 'XPath', e.find, './tag[last()+1]')
+
def test_findall(self):
e = ET.XML(SAMPLE_XML)
e[2] = ET.XML(SAMPLE_SECTION)