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E2E test: Subscribe with OffsetSpec::offset(N) — resume from specific offset #308

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E2E test: Subscribe with OffsetSpec::offset(N) — resume from specific offset #308

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215 changes: 215 additions & 0 deletions tests/E2E/SubscribeTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -4,18 +4,26 @@

namespace CrazyGoat\RabbitStream\Tests\E2E;

use CrazyGoat\RabbitStream\Client\OsirisChunkParser;
use CrazyGoat\RabbitStream\Request\CreateRequestV1;
use CrazyGoat\RabbitStream\Request\CreditRequestV1;
use CrazyGoat\RabbitStream\Request\DeclarePublisherRequestV1;
use CrazyGoat\RabbitStream\Request\DeletePublisherRequestV1;
use CrazyGoat\RabbitStream\Request\OpenRequestV1;
use CrazyGoat\RabbitStream\Request\PeerPropertiesRequestV1;
use CrazyGoat\RabbitStream\Request\PublishRequestV1;
use CrazyGoat\RabbitStream\Request\SaslAuthenticateRequestV1;
use CrazyGoat\RabbitStream\Request\SaslHandshakeRequestV1;
use CrazyGoat\RabbitStream\Request\SubscribeRequestV1;
use CrazyGoat\RabbitStream\Request\TuneRequestV1;
use CrazyGoat\RabbitStream\Response\CreateResponseV1;
use CrazyGoat\RabbitStream\Response\DeclarePublisherResponseV1;
use CrazyGoat\RabbitStream\Response\DeliverResponseV1;
use CrazyGoat\RabbitStream\Response\SubscribeResponseV1;
use CrazyGoat\RabbitStream\Response\TuneResponseV1;
use CrazyGoat\RabbitStream\StreamConnection;
use CrazyGoat\RabbitStream\VO\OffsetSpec;
use CrazyGoat\RabbitStream\VO\PublishedMessage;
use PHPUnit\Framework\TestCase;

class SubscribeTest extends TestCase
Expand Down Expand Up @@ -135,4 +143,211 @@ public function testDuplicateSubscriptionIdThrows(): void

$connection->close();
}

public function testSubscribeFromSpecificOffset(): void
{
$connection = $this->connectAndOpen();
$streamName = 'test-subscribe-offset-' . uniqid();

$connection->sendMessage(new CreateRequestV1($streamName));
$createResponse = $connection->readMessage();
$this->assertInstanceOf(CreateResponseV1::class, $createResponse);

$connection->sendMessage(new DeclarePublisherRequestV1(1, null, $streamName));
$declareResponse = $connection->readMessage();
$this->assertInstanceOf(DeclarePublisherResponseV1::class, $declareResponse);

$messages = [];
for ($i = 0; $i < 10; $i++) {
$messages[] = new PublishedMessage($i, "Message $i");
}

$connection->sendMessage(new PublishRequestV1(1, ...$messages));

$confirmedIds = [];
$connection->registerPublisher(
1,
function (array $ids) use (&$confirmedIds): void {
$confirmedIds = array_merge($confirmedIds, $ids);
},
function (): void {
}
);

$connection->readLoop(maxFrames: 1);
$this->assertCount(10, $confirmedIds, 'All 10 messages should be confirmed');

$receivedEntries = [];
$connection->registerSubscriber(1, function (DeliverResponseV1 $deliver) use (&$receivedEntries): void {
$chunkBytes = $deliver->getChunkBytes();
$entries = OsirisChunkParser::parse($chunkBytes);
foreach ($entries as $entry) {
$receivedEntries[] = $entry;
}
});

$connection->sendMessage(new SubscribeRequestV1(1, $streamName, OffsetSpec::offset(5), 10));
$subscribeResponse = $connection->readMessage();
$this->assertInstanceOf(SubscribeResponseV1::class, $subscribeResponse);

$connection->sendMessage(new CreditRequestV1(1, 10));
$connection->readLoop(maxFrames: 1);

$this->assertCount(5, $receivedEntries, 'Should receive exactly 5 messages (offsets 5-9)');

$getOffset = fn(\CrazyGoat\RabbitStream\Client\ChunkEntry $e): int => $e->getOffset();
$offsets = array_map($getOffset, $receivedEntries);
$this->assertSame([5, 6, 7, 8, 9], $offsets, 'Should receive messages with offsets 5, 6, 7, 8, 9');

try {
if ($connection->isConnected()) {
$connection->sendMessage(new DeletePublisherRequestV1(1));
$connection->readMessage();
}
} catch (\Throwable) {
}

$connection->close();
}

public function testSubscribeFromOffsetZero(): void
{
$connection = $this->connectAndOpen();
$streamName = 'test-subscribe-offset-zero-' . uniqid();

$connection->sendMessage(new CreateRequestV1($streamName));
$createResponse = $connection->readMessage();
$this->assertInstanceOf(CreateResponseV1::class, $createResponse);

$connection->sendMessage(new DeclarePublisherRequestV1(1, null, $streamName));
$declareResponse = $connection->readMessage();
$this->assertInstanceOf(DeclarePublisherResponseV1::class, $declareResponse);

$messages = [];
for ($i = 0; $i < 10; $i++) {
$messages[] = new PublishedMessage($i, "Message $i");
}

$connection->sendMessage(new PublishRequestV1(1, ...$messages));

$confirmedIds = [];
$connection->registerPublisher(
1,
function (array $ids) use (&$confirmedIds): void {
$confirmedIds = array_merge($confirmedIds, $ids);
},
function (): void {
}
);

$connection->readLoop(maxFrames: 1);
$this->assertCount(10, $confirmedIds, 'All 10 messages should be confirmed');

$receivedEntries = [];
$connection->registerSubscriber(1, function (DeliverResponseV1 $deliver) use (&$receivedEntries): void {
$chunkBytes = $deliver->getChunkBytes();
$entries = OsirisChunkParser::parse($chunkBytes);
foreach ($entries as $entry) {
$receivedEntries[] = $entry;
}
});

$connection->sendMessage(new SubscribeRequestV1(1, $streamName, OffsetSpec::offset(0), 10));
$subscribeResponse = $connection->readMessage();
$this->assertInstanceOf(SubscribeResponseV1::class, $subscribeResponse);

$connection->sendMessage(new CreditRequestV1(1, 10));
$connection->readLoop(maxFrames: 1);

$this->assertCount(10, $receivedEntries, 'Should receive all 10 messages when subscribing from offset 0');

$getOffset = fn(\CrazyGoat\RabbitStream\Client\ChunkEntry $e): int => $e->getOffset();
$offsets = array_map($getOffset, $receivedEntries);
$this->assertSame([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], $offsets, 'Should receive messages with offsets 0-9');

try {
if ($connection->isConnected()) {
$connection->sendMessage(new DeletePublisherRequestV1(1));
$connection->readMessage();
}
} catch (\Throwable) {
}

$connection->close();
}

public function testSubscribeFromOffsetBeyondEnd(): void
{
$connection = $this->connectAndOpen();
$streamName = 'test-subscribe-offset-beyond-' . uniqid();

$connection->sendMessage(new CreateRequestV1($streamName));
$createResponse = $connection->readMessage();
$this->assertInstanceOf(CreateResponseV1::class, $createResponse);

$connection->sendMessage(new DeclarePublisherRequestV1(1, null, $streamName));
$declareResponse = $connection->readMessage();
$this->assertInstanceOf(DeclarePublisherResponseV1::class, $declareResponse);

$messages = [];
for ($i = 0; $i < 5; $i++) {
$messages[] = new PublishedMessage($i, "Message $i");
}

$connection->sendMessage(new PublishRequestV1(1, ...$messages));

$confirmedIds = [];
$connection->registerPublisher(
1,
function (array $ids) use (&$confirmedIds): void {
$confirmedIds = array_merge($confirmedIds, $ids);
},
function (): void {
}
);

$connection->readLoop(maxFrames: 1);
$this->assertCount(5, $confirmedIds, 'All 5 messages should be confirmed');

$receivedEntries = [];
$connection->registerSubscriber(1, function (DeliverResponseV1 $deliver) use (&$receivedEntries): void {
$chunkBytes = $deliver->getChunkBytes();
$entries = OsirisChunkParser::parse($chunkBytes);
foreach ($entries as $entry) {
$receivedEntries[] = $entry;
}
});

$connection->sendMessage(new SubscribeRequestV1(1, $streamName, OffsetSpec::offset(100), 10));
$subscribeResponse = $connection->readMessage();
$this->assertInstanceOf(SubscribeResponseV1::class, $subscribeResponse);

$connection->sendMessage(new CreditRequestV1(1, 10));

$connection->readLoop(maxFrames: 1, timeout: 1.0);

$this->assertCount(
0,
$receivedEntries,
'Should receive no messages when subscribing from offset beyond stream end'
);

$connection->sendMessage(new PublishRequestV1(1, new PublishedMessage(5, 'Message 5')));
$connection->readLoop(maxFrames: 1);

$connection->readLoop(maxFrames: 1);

$this->assertCount(1, $receivedEntries, 'Should receive 1 message after publishing to offset 5');
$this->assertSame(5, $receivedEntries[0]->getOffset(), 'Received message should have offset 5');

try {
if ($connection->isConnected()) {
$connection->sendMessage(new DeletePublisherRequestV1(1));
$connection->readMessage();
}
} catch (\Throwable) {
}

$connection->close();
}
}
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