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utils.py

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from lxml import etree

def load_xml(xml):

parser = etree.XMLParser(

remove_blank_text=True, remove_comments=True, resolve_entities=False

)

return etree.fromstring(xml.strip(), parser=parser)

def assert_nodes_equal(result, expected):

def _convert_node(node):

if isinstance(node, (str, bytes)):

return load_xml(node)

return node

# assert node_1 == node_2

result = etree.tostring(_convert_node(result), pretty_print=True)

expected = etree.tostring(_convert_node(expected), pretty_print=True)

result = result.decode("utf-8")

expected = expected.decode("utf-8")

assert result == expected

def render_node(element, value):

node = etree.Element("document")

element.render(node, value)

return node

class DummyTransport:

def __init__(self):

self._items = {}

def bind(self, url, node):

self._items[url] = node

def load(self, url):

data = self._items[url]

if isinstance(data, (bytes, str)):

return data

return etree.tostring(data)