using Microsoft.VisualStudio.TestTools.UnitTesting;
using MQTTnet.Exceptions;
using MQTTnet.Protocol;

namespace MQTTnet.Tests
{
    [TestClass]
    public class MqttTopicValidatorSubscribe_Tests
    {
        [TestMethod]
        public void Valid_Topic()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe("/a/b/c");
        }

        [TestMethod]
        public void Valid_Topic_Plus_In_Between()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe("/a/+/c");
        }

        [TestMethod]
        public void Valid_Topic_Plus_Last_Char()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe("/a/+");
        }

        [TestMethod]
        public void Valid_Topic_Hash_Last_Char()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe("/a/#");
        }

        [TestMethod]
        public void Valid_Topic_Only_Hash()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe("#");
        }

        [TestMethod]
        [ExpectedException(typeof(MqttProtocolViolationException))]
        public void Invalid_Topic_Hash_In_Between()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe("/a/#/c");
        }

        [TestMethod]
        [ExpectedException(typeof(MqttProtocolViolationException))]
        public void Invalid_Topic_Empty()
        {
            MqttTopicValidator.ThrowIfInvalidSubscribe(string.Empty);
        }
    }
}