tests_encodeutils.py 文件源码

def test_unicode_only_exception(self):
        # Exception with a __unicode__() method and a __str__() which
        # raises an exception (similar to the Message class of oslo_i18n)
        class UnicodeOnlyException(Exception):
            def __init__(self, value):
                Exception.__init__(self)
                self.value = value

            def __unicode__(self):
                return self.value

            def __str__(self):
                raise UnicodeError("use unicode()")

        # __unicode__() returns unicode
        exc = UnicodeOnlyException(u'unicode \xe9\u20ac')
        self.assertEqual(encodeutils.exception_to_unicode(exc),
                         u'unicode \xe9\u20ac')

        # __unicode__() returns bytes
        exc = UnicodeOnlyException(b'utf-8 \xc3\xa9\xe2\x82\xac')
        self.assertEqual(encodeutils.exception_to_unicode(exc),
                         u'utf-8 \xe9\u20ac')