def test_read_write(self):
expected = User(
'ivo://bar.com/user?00000000-0000-0000-0000-000000000f00')
expected.identities.add(Identity('*****@*****.**', 'OpenID'))
expected.identities.add(Identity('foo', 'HTTP'))
expected.identities.add(
Identity('00000000-0000-0000-0000-000000000004', 'CADC'))
expected.identities.add(Identity('cn=foo,c=bar', 'X500'))
writer = UserWriter()
xml_string = writer.write(expected)
self.assertIsNotNone(xml_string)
self.assertTrue(len(xml_string) > 0)
reader = UserReader()
actual = reader.read(xml_string)
self.assertIsNotNone(actual)
self.assertEqual(actual.internal_id, expected.internal_id)
self.assertSetEqual(expected.identities, actual.identities)
