[utils] Make value optional for find_xpath_attr

This allows selecting particular attributes by name but without specifying the value and similar to xpath syntax `[@attrib]`
This commit is contained in:
Sergey M․ 2015-08-01 20:22:13 +06:00
parent 525a87f58e
commit ee114368ad
2 changed files with 17 additions and 5 deletions

View file

@ -235,12 +235,21 @@ class TestUtil(unittest.TestCase):
<node x="a"/>
<node x="a" y="c" />
<node x="b" y="d" />
<node x="" />
</root>'''
doc = xml.etree.ElementTree.fromstring(testxml)
self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n'), None)
self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n', 'v'), None)
self.assertEqual(find_xpath_attr(doc, './/node', 'n'), None)
self.assertEqual(find_xpath_attr(doc, './/node', 'n', 'v'), None)
self.assertEqual(find_xpath_attr(doc, './/node', 'x'), doc[1])
self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'a'), doc[1])
self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'b'), doc[3])
self.assertEqual(find_xpath_attr(doc, './/node', 'y'), doc[2])
self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'c'), doc[2])
self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'd'), doc[3])
self.assertEqual(find_xpath_attr(doc, './/node', 'x', ''), doc[4])
def test_xpath_with_ns(self):
testxml = '''<root xmlns:media="http://example.com/">