MQTTnet/Source/MQTTnet.Tests/Protocol_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 Microsoft.VisualStudio.TestTools.UnitTesting;
using MQTTnet.Formatter;

namespace MQTTnet.Tests;

// ReSharper disable InconsistentNaming
[TestClass]
public sealed class Protocol_Tests
{
    [TestMethod]
    public void Encode_Four_Byte_Integer()
    {
        var writer = new MqttBufferWriter(4, 4);

        for (uint value = 0; value < 268435455; value++)
        {
            writer.WriteVariableByteInteger(value);

            var buffer = writer.GetBuffer();

            var reader = new MqttBufferReader();
            reader.SetBuffer(buffer, 0, writer.Length);
            var checkValue = reader.ReadVariableByteInteger();

            Assert.AreEqual(value, checkValue);

            writer.Reset(0);
        }
    }

    [TestMethod]
    public void Encode_Two_Byte_Integer()
    {
        var writer = new MqttBufferWriter(2, 2);

        for (ushort value = 0; value < ushort.MaxValue; value++)
        {
            writer.WriteTwoByteInteger(value);

            var buffer = writer.GetBuffer();

            var reader = new MqttBufferReader();
            reader.SetBuffer(buffer, 0, writer.Length);
            var checkValue = reader.ReadTwoByteInteger();

            Assert.AreEqual(value, checkValue);

            writer.Reset(0);
        }
    }
}