tests_encodeutils.py 文件源码

def test_unicode_or_str_exception(self):
        # Exception with __str__() and __unicode__() methods
        class UnicodeOrStrException(Exception):
            def __init__(self, unicode_value, str_value):
                Exception.__init__(self)
                self.unicode_value = unicode_value
                self.str_value = str_value

            def __unicode__(self):
                return self.unicode_value

            def __str__(self):
                return self.str_value

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

        # __unicode__() returns bytes (does this case really happen in the
        # wild?)
        exc = UnicodeOrStrException(b'utf-8 \xc3\xa9\xe2\x82\xac', b'str')
        self.assertEqual(encodeutils.exception_to_unicode(exc),
                         u'utf-8 \xe9\u20ac')