mirror of https://github.com/python/cpython
102 lines
2.9 KiB
Python
102 lines
2.9 KiB
Python
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# Tests for xml.dom.minicompat
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import pickle
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import unittest
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import xml.dom
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from xml.dom.minicompat import *
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class EmptyNodeListTestCase(unittest.TestCase):
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"""Tests for the EmptyNodeList class."""
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def test_emptynodelist_item(self):
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# Test item access on an EmptyNodeList.
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node_list = EmptyNodeList()
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self.assertIsNone(node_list.item(0))
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self.assertIsNone(node_list.item(-1)) # invalid item
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with self.assertRaises(IndexError):
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node_list[0]
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with self.assertRaises(IndexError):
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node_list[-1]
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def test_emptynodelist_length(self):
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node_list = EmptyNodeList()
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# Reading
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self.assertEqual(node_list.length, 0)
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# Writing
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with self.assertRaises(xml.dom.NoModificationAllowedErr):
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node_list.length = 111
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def test_emptynodelist___add__(self):
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node_list = EmptyNodeList() + NodeList()
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self.assertEqual(node_list, NodeList())
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def test_emptynodelist___radd__(self):
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node_list = [1,2] + EmptyNodeList()
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self.assertEqual(node_list, [1,2])
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class NodeListTestCase(unittest.TestCase):
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"""Tests for the NodeList class."""
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def test_nodelist_item(self):
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# Test items access on a NodeList.
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# First, use an empty NodeList.
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node_list = NodeList()
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self.assertIsNone(node_list.item(0))
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self.assertIsNone(node_list.item(-1))
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with self.assertRaises(IndexError):
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node_list[0]
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with self.assertRaises(IndexError):
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node_list[-1]
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# Now, use a NodeList with items.
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node_list.append(111)
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node_list.append(999)
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self.assertEqual(node_list.item(0), 111)
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self.assertIsNone(node_list.item(-1)) # invalid item
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self.assertEqual(node_list[0], 111)
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self.assertEqual(node_list[-1], 999)
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def test_nodelist_length(self):
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node_list = NodeList([1, 2])
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# Reading
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self.assertEqual(node_list.length, 2)
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# Writing
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with self.assertRaises(xml.dom.NoModificationAllowedErr):
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node_list.length = 111
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def test_nodelist___add__(self):
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node_list = NodeList([3, 4]) + [1, 2]
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self.assertEqual(node_list, NodeList([3, 4, 1, 2]))
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def test_nodelist___radd__(self):
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node_list = [1, 2] + NodeList([3, 4])
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self.assertEqual(node_list, NodeList([1, 2, 3, 4]))
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def test_nodelist_pickle_roundtrip(self):
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# Test pickling and unpickling of a NodeList.
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# Empty NodeList.
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node_list = NodeList()
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pickled = pickle.dumps(node_list)
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unpickled = pickle.loads(pickled)
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self.assertEqual(unpickled, node_list)
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# Non-empty NodeList.
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node_list.append(1)
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node_list.append(2)
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pickled = pickle.dumps(node_list)
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unpickled = pickle.loads(pickled)
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self.assertEqual(unpickled, node_list)
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if __name__ == '__main__':
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unittest.main()
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