feat: wire MQTT end-to-end through NATS SubList for cross-protocol messaging
- MqttListener accepts IMessageRouter + delegates for client ID allocation and account resolution (Phase 1-2) - MqttConnection creates MqttNatsClientAdapter on CONNECT, registers with SubList for cross-protocol delivery (Phase 2) - PUBLISH routes through ProcessMessage() when router available, falls back to MQTT-only fan-out for test compatibility (Phase 3) - SUBSCRIBE creates real SubList entries via adapter, enabling NATS→MQTT delivery with topic↔subject translation (Phase 4) - PUBREL now delivers stored QoS 2 messages before ack (Phase 5) - ConnzHandler includes MQTT adapters in /connz output (Phase 6) - MQTTnet E2E tests: MQTT pub/sub, MQTT→NATS, NATS→MQTT, QoS 1 (Phase 7)
This commit is contained in:
Joseph Doherty
219
tests/NATS.E2E.Tests/MqttE2ETests.cs
Normal file
219
tests/NATS.E2E.Tests/MqttE2ETests.cs
Normal file
@@ -0,0 +1,219 @@
|
||||
using System.Text;
|
||||
using MQTTnet;
|
||||
using MQTTnet.Client;
|
||||
using MQTTnet.Protocol;
|
||||
using NATS.Client.Core;
|
||||
using NATS.E2E.Tests.Infrastructure;
|
||||
|
||||
namespace NATS.E2E.Tests;
|
||||
|
||||
/// <summary>
|
||||
/// End-to-end tests for MQTT 3.1.1 interop using MQTTnet client library.
|
||||
/// Verifies binary MQTT protocol, cross-protocol MQTT↔NATS messaging, and QoS 1.
|
||||
/// </summary>
|
||||
[Collection("E2E-Mqtt")]
|
||||
public class MqttE2ETests(MqttServerFixture fixture)
|
||||
{
|
||||
[Fact]
|
||||
public async Task MqttE2E_ConnectPublishSubscribe()
|
||||
{
|
||||
using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15));
|
||||
|
||||
var factory = new MqttFactory();
|
||||
using var subscriber = factory.CreateMqttClient();
|
||||
using var publisher = factory.CreateMqttClient();
|
||||
|
||||
var subOpts = new MqttClientOptionsBuilder()
|
||||
.WithTcpServer("127.0.0.1", fixture.MqttPort)
|
||||
.WithClientId("e2e-mqttnet-sub")
|
||||
.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311)
|
||||
.Build();
|
||||
|
||||
var pubOpts = new MqttClientOptionsBuilder()
|
||||
.WithTcpServer("127.0.0.1", fixture.MqttPort)
|
||||
.WithClientId("e2e-mqttnet-pub")
|
||||
.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311)
|
||||
.Build();
|
||||
|
||||
await subscriber.ConnectAsync(subOpts, cts.Token);
|
||||
await publisher.ConnectAsync(pubOpts, cts.Token);
|
||||
|
||||
var received = new TaskCompletionSource<string>(TaskCreationOptions.RunContinuationsAsynchronously);
|
||||
subscriber.ApplicationMessageReceivedAsync += e =>
|
||||
{
|
||||
var payload = Encoding.UTF8.GetString(e.ApplicationMessage.PayloadSegment);
|
||||
received.TrySetResult(payload);
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
await subscriber.SubscribeAsync(
|
||||
factory.CreateSubscribeOptionsBuilder()
|
||||
.WithTopicFilter("test/mqttnet/e2e")
|
||||
.Build(),
|
||||
cts.Token);
|
||||
|
||||
// Small delay to let subscription propagate
|
||||
await Task.Delay(100, cts.Token);
|
||||
|
||||
await publisher.PublishAsync(
|
||||
new MqttApplicationMessageBuilder()
|
||||
.WithTopic("test/mqttnet/e2e")
|
||||
.WithPayload("hello-mqttnet")
|
||||
.Build(),
|
||||
cts.Token);
|
||||
|
||||
var msg = await received.Task.WaitAsync(cts.Token);
|
||||
msg.ShouldBe("hello-mqttnet");
|
||||
|
||||
await subscriber.DisconnectAsync(cancellationToken: cts.Token);
|
||||
await publisher.DisconnectAsync(cancellationToken: cts.Token);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task MqttE2E_CrossProtocol_MqttPublish_NatsSubscribe()
|
||||
{
|
||||
using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15));
|
||||
|
||||
// NATS subscriber on "sensor.temp" (MQTT topic "sensor/temp" maps to NATS subject "sensor.temp")
|
||||
await using var natsConn = fixture.CreateNatsClient();
|
||||
await natsConn.ConnectAsync();
|
||||
|
||||
var natsReceived = new TaskCompletionSource<string>(TaskCreationOptions.RunContinuationsAsynchronously);
|
||||
_ = Task.Run(async () =>
|
||||
{
|
||||
await foreach (var msg in natsConn.SubscribeAsync<string>("sensor.temp", cancellationToken: cts.Token))
|
||||
{
|
||||
natsReceived.TrySetResult(msg.Data ?? "");
|
||||
break;
|
||||
}
|
||||
}, cts.Token);
|
||||
|
||||
// Small delay to let NATS subscription register
|
||||
await Task.Delay(200, cts.Token);
|
||||
|
||||
// MQTT publisher on "sensor/temp"
|
||||
var factory = new MqttFactory();
|
||||
using var mqttPub = factory.CreateMqttClient();
|
||||
var pubOpts = new MqttClientOptionsBuilder()
|
||||
.WithTcpServer("127.0.0.1", fixture.MqttPort)
|
||||
.WithClientId("e2e-cross-mqtt-pub")
|
||||
.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311)
|
||||
.Build();
|
||||
|
||||
await mqttPub.ConnectAsync(pubOpts, cts.Token);
|
||||
await mqttPub.PublishAsync(
|
||||
new MqttApplicationMessageBuilder()
|
||||
.WithTopic("sensor/temp")
|
||||
.WithPayload("22.5")
|
||||
.Build(),
|
||||
cts.Token);
|
||||
|
||||
var result = await natsReceived.Task.WaitAsync(cts.Token);
|
||||
result.ShouldBe("22.5");
|
||||
|
||||
await mqttPub.DisconnectAsync(cancellationToken: cts.Token);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task MqttE2E_CrossProtocol_NatsPublish_MqttSubscribe()
|
||||
{
|
||||
using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15));
|
||||
|
||||
// MQTT subscriber on "sensor/humidity"
|
||||
var factory = new MqttFactory();
|
||||
using var mqttSub = factory.CreateMqttClient();
|
||||
var subOpts = new MqttClientOptionsBuilder()
|
||||
.WithTcpServer("127.0.0.1", fixture.MqttPort)
|
||||
.WithClientId("e2e-cross-mqtt-sub")
|
||||
.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311)
|
||||
.Build();
|
||||
|
||||
await mqttSub.ConnectAsync(subOpts, cts.Token);
|
||||
|
||||
var mqttReceived = new TaskCompletionSource<string>(TaskCreationOptions.RunContinuationsAsynchronously);
|
||||
mqttSub.ApplicationMessageReceivedAsync += e =>
|
||||
{
|
||||
var payload = Encoding.UTF8.GetString(e.ApplicationMessage.PayloadSegment);
|
||||
mqttReceived.TrySetResult(payload);
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
await mqttSub.SubscribeAsync(
|
||||
factory.CreateSubscribeOptionsBuilder()
|
||||
.WithTopicFilter("sensor/humidity")
|
||||
.Build(),
|
||||
cts.Token);
|
||||
|
||||
// Small delay to let subscription propagate through SubList
|
||||
await Task.Delay(200, cts.Token);
|
||||
|
||||
// NATS publisher on "sensor.humidity"
|
||||
await using var natsConn = fixture.CreateNatsClient();
|
||||
await natsConn.ConnectAsync();
|
||||
await natsConn.PublishAsync("sensor.humidity", "65%", cancellationToken: cts.Token);
|
||||
|
||||
var result = await mqttReceived.Task.WaitAsync(cts.Token);
|
||||
result.ShouldBe("65%");
|
||||
|
||||
await mqttSub.DisconnectAsync(cancellationToken: cts.Token);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task MqttE2E_Qos1_PubAck()
|
||||
{
|
||||
using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15));
|
||||
|
||||
var factory = new MqttFactory();
|
||||
using var subscriber = factory.CreateMqttClient();
|
||||
using var publisher = factory.CreateMqttClient();
|
||||
|
||||
var subOpts = new MqttClientOptionsBuilder()
|
||||
.WithTcpServer("127.0.0.1", fixture.MqttPort)
|
||||
.WithClientId("e2e-qos1-sub")
|
||||
.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311)
|
||||
.Build();
|
||||
|
||||
var pubOpts = new MqttClientOptionsBuilder()
|
||||
.WithTcpServer("127.0.0.1", fixture.MqttPort)
|
||||
.WithClientId("e2e-qos1-pub")
|
||||
.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311)
|
||||
.Build();
|
||||
|
||||
await subscriber.ConnectAsync(subOpts, cts.Token);
|
||||
await publisher.ConnectAsync(pubOpts, cts.Token);
|
||||
|
||||
var received = new TaskCompletionSource<string>(TaskCreationOptions.RunContinuationsAsynchronously);
|
||||
subscriber.ApplicationMessageReceivedAsync += e =>
|
||||
{
|
||||
var payload = Encoding.UTF8.GetString(e.ApplicationMessage.PayloadSegment);
|
||||
received.TrySetResult(payload);
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
await subscriber.SubscribeAsync(
|
||||
factory.CreateSubscribeOptionsBuilder()
|
||||
.WithTopicFilter(f => f.WithTopic("test/qos1").WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce))
|
||||
.Build(),
|
||||
cts.Token);
|
||||
|
||||
await Task.Delay(100, cts.Token);
|
||||
|
||||
// Publish with QoS 1 — MQTTnet will expect PUBACK from server
|
||||
var pubResult = await publisher.PublishAsync(
|
||||
new MqttApplicationMessageBuilder()
|
||||
.WithTopic("test/qos1")
|
||||
.WithPayload("qos1-payload")
|
||||
.WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce)
|
||||
.Build(),
|
||||
cts.Token);
|
||||
|
||||
// MQTTnet throws if PUBACK not received, so reaching here means server sent PUBACK
|
||||
pubResult.ReasonCode.ShouldBe(MqttClientPublishReasonCode.Success);
|
||||
|
||||
var msg = await received.Task.WaitAsync(cts.Token);
|
||||
msg.ShouldBe("qos1-payload");
|
||||
|
||||
await subscriber.DisconnectAsync(cancellationToken: cts.Token);
|
||||
await publisher.DisconnectAsync(cancellationToken: cts.Token);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user