utils.py 文件源码

def _validate_dict_data(self, expected, actual):
        """Validate dictionary data.

           Compare expected dictionary data vs actual dictionary data.
           The values in the 'expected' dictionary can be strings, bools, ints,
           longs, or can be a function that evaluates a variable and returns a
           bool.
           """
        self.log.debug('actual: {}'.format(repr(actual)))
        self.log.debug('expected: {}'.format(repr(expected)))

        for k, v in six.iteritems(expected):
            if k in actual:
                if (isinstance(v, six.string_types) or
                        isinstance(v, bool) or
                        isinstance(v, six.integer_types)):
                    # handle explicit values
                    if v != actual[k]:
                        return "{}:{}".format(k, actual[k])
                # handle function pointers, such as not_null or valid_ip
                elif not v(actual[k]):
                    return "{}:{}".format(k, actual[k])
            else:
                return "key '{}' does not exist".format(k)
        return None