Files
natsdotnet/tests/NATS.Server.Tests/Mqtt/MqttPublishSubscribeParityTests.cs
2026-02-23 13:08:52 -05:00

34 lines
1.2 KiB
C#

using System.Net;
using System.Net.Sockets;
using NATS.Server.Mqtt;
namespace NATS.Server.Tests;
public class MqttPublishSubscribeParityTests
{
[Fact]
public async Task Mqtt_publish_only_reaches_matching_topic_subscribers()
{
await using var listener = new MqttListener("127.0.0.1", 0);
using var cts = new CancellationTokenSource();
await listener.StartAsync(cts.Token);
using var sub = new TcpClient();
await sub.ConnectAsync(IPAddress.Loopback, listener.Port);
var subStream = sub.GetStream();
await MqttTestWire.WriteLineAsync(subStream, "CONNECT sub");
_ = await MqttTestWire.ReadLineAsync(subStream, 1000);
await MqttTestWire.WriteLineAsync(subStream, "SUB sensors.temp");
_ = await MqttTestWire.ReadLineAsync(subStream, 1000);
using var pub = new TcpClient();
await pub.ConnectAsync(IPAddress.Loopback, listener.Port);
var pubStream = pub.GetStream();
await MqttTestWire.WriteLineAsync(pubStream, "CONNECT pub");
_ = await MqttTestWire.ReadLineAsync(pubStream, 1000);
await MqttTestWire.WriteLineAsync(pubStream, "PUB sensors.humidity 90");
(await MqttTestWire.ReadLineAsync(subStream, 150)).ShouldBeNull();
}
}