import unittest
from slixmpp.test import SlixTest
from slixmpp.xmlstream.stanzabase import ET
from slixmpp.xmlstream.tostring import tostring, escape
class TestToString(SlixTest):
"""
Test the implementation of slixmpp.xmlstream.tostring
"""
def tearDown(self):
self.stream_close()
def tryTostring(self, original='', expected=None, message='', **kwargs):
"""
Compare the result of calling tostring against an
expected result.
"""
if not expected:
expected=original
if isinstance(original, str):
xml = ET.fromstring(original)
else:
xml=original
result = tostring(xml, **kwargs)
self.failUnless(result == expected, "%s: %s" % (message, result))
def testXMLEscape(self):
"""Test escaping XML special characters."""
original = """'Hi & welcome!'"""
escaped = escape(original)
desired = """<foo bar="baz">'Hi"""
desired += """ & welcome!'</foo>"""
self.failUnless(escaped == desired,
"XML escaping did not work: %s." % escaped)
def testEmptyElement(self):
"""Test converting an empty element to a string."""
self.tryTostring(
original='',
message="Empty element not serialized correctly")
def testEmptyElementWrapped(self):
"""Test converting an empty element inside another element."""
self.tryTostring(
original='',
message="Wrapped empty element not serialized correctly")
def testEmptyElementWrappedText(self):
"""
Test converting an empty element wrapped with text
inside another element.
"""
self.tryTostring(
original='Some text. More text.',
message="Text wrapped empty element serialized incorrectly")
def testMultipleChildren(self):
"""Test converting multiple child elements to a Unicode string."""
self.tryTostring(
original='',
message="Multiple child elements not serialized correctly")
def testXMLNS(self):
"""
Test using xmlns tostring parameter, which will prevent adding
an xmlns attribute to the serialized element if the element's
namespace is the same.
"""
self.tryTostring(
original='',
expected='',
message="The xmlns parameter was not used properly.",
xmlns='foo')
def testTailContent(self):
"""
Test that elements of the form foo bar baz only
include " baz" once.
"""
self.tryTostring(
original='foo bar baz',
message='Element tail content is incorrect.')
def testStanzaStr(self):
"""
Test that stanza objects are serialized properly.
"""
self.stream_start()
utf8_message = '\xe0\xb2\xa0_\xe0\xb2\xa0'
if not hasattr(utf8_message, 'decode'):
# Python 3
utf8_message = bytes(utf8_message, encoding='utf-8')
msg = self.Message()
msg['body'] = utf8_message.decode('utf-8')
expected = '\xe0\xb2\xa0_\xe0\xb2\xa0'
result = msg.__str__()
self.failUnless(result == expected,
"Stanza Unicode handling is incorrect: %s" % result)
def testXMLLang(self):
"""Test that serializing xml:lang works."""
self.stream_start()
msg = self.Message()
msg._set_attr('{%s}lang' % msg.xml_ns, "no")
expected = ''
result = msg.__str__()
self.failUnless(expected == result,
"Serialization with xml:lang failed: %s" % result)
suite = unittest.TestLoader().loadTestsFromTestCase(TestToString)