def testGetUniqueElementValueFromXmlString_OneMatchingElement(self):
xmlString = '<?xml version="1.0" encoding="UTF-8"?><foo>bar</foo>'
value = getUniqueElementValueFromXmlString(xmlString, 'foo')
self.assertEqual('bar', value)
def testGetUniqueElementValueFromXmlString_MultipleMatchingElements(self):
xmlString = '<?xml version="1.0" encoding="UTF-8"?><foos><foo>biz</foo><foo>baz</foo><foo>bar</foo></foos>'
value = getUniqueElementValueFromXmlString(xmlString, 'foo')
self.assertEqual('biz', value)
def testGetUniqueElementValueFromXmlString_NoSuchElement(self):
xmlString = '<?xml version="1.0" encoding="UTF-8"?><foo>bar</foo>'
value = getUniqueElementValueFromXmlString(xmlString, 'no_such_element')
self.assertIsNone(value)
