test_pulldom.py 文件源码

def test_expandItem(self):
        """Ensure expandItem works as expected."""
        items = pulldom.parseString(SMALL_SAMPLE)
        # Loop through the nodes until we get to a "title" start tag:
        for evt, item in items:
            if evt == pulldom.START_ELEMENT and item.tagName == "title":
                items.expandNode(item)
                self.assertEqual(1, len(item.childNodes))
                break
        else:
            self.fail("No \"title\" element detected in SMALL_SAMPLE!")
        # Loop until we get to the next start-element:
        for evt, node in items:
            if evt == pulldom.START_ELEMENT:
                break
        self.assertEqual("hr", node.tagName,
            "expandNode did not leave DOMEventStream in the correct state.")
        # Attempt to expand a standalone element:
        items.expandNode(node)
        self.assertEqual(next(items)[0], pulldom.CHARACTERS)
        evt, node = next(items)
        self.assertEqual(node.tagName, "p")
        items.expandNode(node)
        next(items) # Skip character data
        evt, node = next(items)
        self.assertEqual(node.tagName, "html")
        with self.assertRaises(StopIteration):
            next(items)
        items.clear()
        self.assertIsNone(items.parser)
        self.assertIsNone(items.stream)