def METHOD_NAME(self):
    request = Request(
        uri='https://example.com/lti',
        http_method='POST',
        body=self.read_data_file('lti_old_timestamp.txt')
    )
    parameters = LTIAuthBackend._get_validated_lti_params_from_values(  # pylint: disable=protected-access
        request=request, current_time=1436900000,
        lti_consumer_valid=True, lti_consumer_secret='secret',
        lti_max_timestamp_age=10
    )
    assert not parameters