AmazonSqsFifoStamp example

$serializer = $this->createMock(SerializerInterface::class);
        $serializer->method('encode')->with($envelope)->willReturnOnConsecutiveCalls($encoded);

        $sender = new AmazonSqsSender($connection, $serializer);
        $sender->send($envelope);
    }

    public function testSendWithAmazonSqsFifoStamp()
    {
        $envelope = (new Envelope(new DummyMessage('Oy')))
            ->with($stamp = new AmazonSqsFifoStamp('testGroup', 'testDeduplicationId'));

        $encoded = ['body' => '...', 'headers' => ['type' => DummyMessage::class]];

        $connection = $this->createMock(Connection::class);
        $connection->expects($this->once())->method('send')
            ->with($encoded['body'], $encoded['headers'], 0, $stamp->getMessageGroupId(), $stamp->getMessageDeduplicationId());

        $serializer = $this->createMock(SerializerInterface::class);
        $serializer->method('encode')->with($envelope)->willReturnOnConsecutiveCalls($encoded);

        $sender = new AmazonSqsSender($connection, $serializer);