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import io
import unittest
from http import client
from test.test_httplib import FakeSocket
from unittest import mock
from xml.dom import getDOMImplementation, minidom, xmlbuilder
SMALL_SAMPLE = b"""<?xml version="1.0"?>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xdc="http://www.xml.com/books">
<!-- A comment -->
<title>Introduction to XSL</title>
<hr/>
<p><xdc:author xdc:attrib="prefixed attribute" attrib="other attrib">A. Namespace</xdc:author></p>
</html>"""
class XMLBuilderTest(unittest.TestCase):
def test_entity_resolver(self):
body = (
b"HTTP/1.1 200 OK\r\nContent-Type: text/xml; charset=utf-8\r\n\r\n"
+ SMALL_SAMPLE
)
sock = FakeSocket(body)
response = client.HTTPResponse(sock)
response.begin()
attrs = {"open.return_value": response}
opener = mock.Mock(**attrs)
resolver = xmlbuilder.DOMEntityResolver()
with mock.patch("urllib.request.build_opener") as mock_build:
mock_build.return_value = opener
source = resolver.resolveEntity(None, "http://example.com/2000/svg")
self.assertIsInstance(source, xmlbuilder.DOMInputSource)
self.assertIsNone(source.publicId)
self.assertEqual(source.systemId, "http://example.com/2000/svg")
self.assertEqual(source.baseURI, "http://example.com/2000/")
self.assertEqual(source.encoding, "utf-8")
self.assertIs(source.byteStream, response)
self.assertIsNone(source.characterStream)
self.assertIsNone(source.stringData)
def test_builder(self):
imp = getDOMImplementation()
self.assertIsInstance(imp, xmlbuilder.DOMImplementationLS)
builder = imp.createDOMBuilder(imp.MODE_SYNCHRONOUS, None)
self.assertIsInstance(builder, xmlbuilder.DOMBuilder)
def test_parse_uri(self):
body = (
b"HTTP/1.1 200 OK\r\nContent-Type: text/xml; charset=utf-8\r\n\r\n"
+ SMALL_SAMPLE
)
sock = FakeSocket(body)
response = client.HTTPResponse(sock)
response.begin()
attrs = {"open.return_value": response}
opener = mock.Mock(**attrs)
with mock.patch("urllib.request.build_opener") as mock_build:
mock_build.return_value = opener
imp = getDOMImplementation()
builder = imp.createDOMBuilder(imp.MODE_SYNCHRONOUS, None)
document = builder.parseURI("http://example.com/2000/svg")
self.assertIsInstance(document, minidom.Document)
self.assertEqual(len(document.childNodes), 1)
def test_parse_with_systemId(self):
response = io.BytesIO(SMALL_SAMPLE)
with mock.patch("urllib.request.urlopen") as mock_open:
mock_open.return_value = response
imp = getDOMImplementation()
source = imp.createDOMInputSource()
builder = imp.createDOMBuilder(imp.MODE_SYNCHRONOUS, None)
source.systemId = "http://example.com/2000/svg"
document = builder.parse(source)
self.assertIsInstance(document, minidom.Document)
self.assertEqual(len(document.childNodes), 1)
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