'filter_hidden_settings shouldn\'t raise an exception when handling
mappings with non-string keys'

def test_handles_non_string_keys(self):

    conf = {u'STRING_KEY': u'VALUE1', (u'NON', u'STRING', u'KEY'): u'VALUE2', u'STRING_KEY2': {u'STRING_KEY3': 1, (u'NON', u'STRING', u'KEY', u'2'): 2}}
    filter_hidden_settings(conf)
