'``ApplicationConfigurationError`` can be converted to unicode.'

def test_unicode(self):

    expected_application_name = u'foobarbaz'
    expected_message = u'Invalid    something-or-other.'
    e = ApplicationConfigurationError(application_name=expected_application_name, message=expected_message)
    self.assertEqual(u"Application    '{}'    has    a    configuration    error.    {}".format(expected_application_name, expected_message), unicode(e))
