public async Task LeaveChannel()
{
TestMqServer server = new TestMqServer();
server.Initialize(41203);
server.Start();
TmqClient client = new TmqClient();
client.Connect("tmq://localhost:41203");
TmqResponseCode joined = await client.Join("ch-1", true);
Assert.Equal(TmqResponseCode.Ok, joined);
TmqResponseCode left = await client.Leave("ch-1", false);
Assert.Equal(TmqResponseCode.Ok, left);
await Task.Delay(1000);
Channel channel = server.Server.Channels.FirstOrDefault();
Assert.NotNull(channel);
List <ChannelClient> clients = channel.ClientsClone;
Assert.Empty(clients);
}
