MQTTnet/Source/MQTTnet.Tests/Server/Shared_Subscriptions_Tests.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Linq;
using System.Threading.Tasks;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using MQTTnet.Formatter;

namespace MQTTnet.Tests.Server;

// ReSharper disable InconsistentNaming
[TestClass]
public sealed class Shared_Subscriptions_Tests : BaseTestClass
{
    [TestMethod]
    public async Task Server_Reports_Shared_Subscriptions_Not_Supported()
    {
        using var testEnvironment = CreateTestEnvironment(MqttProtocolVersion.V500);
        await testEnvironment.StartServer();

        var client = testEnvironment.CreateClient();
        var connectResult = await client.ConnectAsync(testEnvironment.ClientFactory.CreateClientOptionsBuilder()
            .WithProtocolVersion(MqttProtocolVersion.V500)
            .WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build());

        Assert.IsFalse(connectResult.SharedSubscriptionAvailable);
    }

    [TestMethod]
    public async Task Subscription_Of_Shared_Subscription_Is_Denied()
    {
        using var testEnvironment = CreateTestEnvironment(MqttProtocolVersion.V500);
        await testEnvironment.StartServer();

        var client = testEnvironment.CreateClient();
        await client.ConnectAsync(testEnvironment.ClientFactory.CreateClientOptionsBuilder()
            .WithProtocolVersion(MqttProtocolVersion.V500)
            .WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build());

        var subscribeResult = await client.SubscribeAsync("$share/A");

        Assert.AreEqual(MqttClientSubscribeResultCode.SharedSubscriptionsNotSupported, subscribeResult.Items.First().ResultCode);
    }
}