tests/test_xpath_selector_unit/test: Fix

changedetectionio/tests/test_xpath_selector_unit.py

@@ -234,9 +234,10 @@ def test_trips(html_content, xpath, answer):
         import elementpath
         from elementpath.xpath3 import XPath3Parser
         parser = etree.HTMLParser()
-        tree = html.fromstring(bytes(doc, encoding='utf-8'), parser=parser)
+        tree = html.fromstring(bytes(html_content, encoding='utf-8'), parser=parser)
+        # just example xpath
         # Error will occur.
-        r = elementpath.select(tree, path.strip(), namespaces={'re': 'http://exslt.org/regular-expressions'}, parser=XPath3Parser)
+        r = elementpath.select(tree, xpath.strip(), namespaces={'re': 'http://exslt.org/regular-expressions'}, parser=XPath3Parser)
 
     html_content = html_tools.xpath_filter(xpath, html_content, append_pretty_line_formatting=True)
     assert type(html_content) == str