If you attempt to send a message to a FIFO queue with a request that contains the `DelaySeconds` parameter, the request fails with an `InvalidParameterValue` response.

This is actually a problem with ElasticMQ, but I'm creating an issue here to track that the version localstack is using gets updated if/when a fix is released.

More Information: https://github.com/softwaremill/elasticmq/issues/273
AttributeNames=['MessageRetentionPeriod', 'RedrivePolicy']
        )
        supported_attribute_get = self.client.get_queue_attributes(QueueUrl=queue_url,
                                                                   AttributeNames=['QueueArn'])
        
        self.assertTrue('MessageRetentionPeriod' in unsupported_attribute_get['Attributes'].keys())
        self.assertEqual('604800', unsupported_attribute_get['Attributes']['MessageRetentionPeriod'])
        self.assertTrue('QueueArn' in supported_attribute_get['Attributes'].keys())
        self.assertTrue('RedrivePolicy' in unsupported_attribute_get['Attributes'].keys())
        redrive_policy = json.loads(unsupported_attribute_get['Attributes']['RedrivePolicy'])
        self.assertTrue(isinstance(redrive_policy['maxReceiveCount'], int))
        
        self.client.delete_queue(QueueUrl=queue_url)
        self.client.delete_queue(QueueUrl=dead_queue_url)
    def test_set_unsupported_attributes(self):
        queue_name = 'queue-%s' % short_uid()
        queue_url = self.client.create_queue(QueueName=queue_name)['QueueUrl']
        self.client.set_queue_attributes(
            QueueUrl=queue_url,
            Attributes={
                'FifoQueue': 'true'
            }
        )
        rs = self.client.get_queue_attributes(QueueUrl=queue_url, AttributeNames=['All'])
        self.assertEqual(rs['ResponseMetadata']['HTTPStatusCode'], 200)
        self.assertIn('FifoQueue', rs['Attributes'])
        self.assertEqual(rs['Attributes']['FifoQueue'], 'true')
        
        self.client.delete_queue(QueueUrl=queue_url)
    def test_list_dead_letter_source_queues(self):