def sign_with_parent(self, private_key):
if self._source_object:
doc = etree.fromstring(self._source_object)
else:
doc = self.to_xml()
self.parent_signature = create_relayable_signature(private_key, doc)
add_element_to_doc(doc, "parent_author_signature", self.parent_signature)
self.outbound_doc = doc
def test_add_element_to_doc():
# Replacing value
doc = etree.fromstring("<comment><text>foobar</text><parent_author_signature>barfoo</parent_author_signature>"
"</comment>")
add_element_to_doc(doc, "parent_author_signature", "newsig")
assert etree.tostring(doc) == b"<comment><text>foobar</text><parent_author_signature>newsig" \
b"</parent_author_signature></comment>"
# Adding value to an empty tag
doc = etree.fromstring("<comment><text>foobar</text><parent_author_signature /></comment>")
add_element_to_doc(doc, "parent_author_signature", "newsig")
assert etree.tostring(doc) == b"<comment><text>foobar</text><parent_author_signature>newsig" \
b"</parent_author_signature></comment>"
# Adding missing tag
doc = etree.fromstring("<comment><text>foobar</text></comment>")
add_element_to_doc(doc, "parent_author_signature", "newsig")
assert etree.tostring(doc) == b"<comment><text>foobar</text><parent_author_signature>newsig" \
b"</parent_author_signature></comment>"