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# Copyright (C) 2020 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Test XML diff."""
import unittest
import xml.etree.ElementTree as ET
import xml_diff
class XmlDiffTest(unittest.TestCase):
def test_attribute_changes(self):
e1 = ET.fromstring('<node attr1="hello" attr2="hello2" ignored="me"/>')
e2 = ET.fromstring('<node attr3="hello3" attr2="bye2"/>')
changes = xml_diff.attribute_changes(e1, e2, set(['ignored']))
self.assertEqual(
xml_diff.ChangeMap(
added={'attr3': 'hello3'},
removed={'attr1': 'hello'},
modified={'attr2': xml_diff.Change('hello2', 'bye2')}), changes)
def test_compare_subelements(self):
p1 = ET.fromstring("""<parent>
<tag1 attr="newfile2" attrkey="notneeded" />
<tag1 attr="oldfile1" attrkey="dest1" />
<tag2 attr="oldfile2" attrkey="dest2" />
</parent>
""")
p2 = ET.fromstring("""<parent>
<tag1 attr="newfile1" attrkey="dest1" />
<tag2 attr="newfile2" attrkey="dest2" />
<tag2 attr="somefile" attrkey="addedfile" />
</parent>
""")
changes = xml_diff.compare_subelements(
tag='tag1',
p1=p1,
p2=p2,
ignored_attrs=set(),
key_fn=lambda x: x.get('attrkey'),
diff_fn=xml_diff.attribute_changes)
self.assertEqual(changes.added, {})
self.assertEqual(
changes.removed,
{'notneeded': '<tag1 attr="newfile2" attrkey="notneeded" />'})
self.assertEqual(
changes.modified, {
'dest1':
xml_diff.ChangeMap(
modified={'attr': xml_diff.Change('oldfile1', 'newfile1')})
})