public async void SendMessage_SingleMessageIsSentSuccessfully_ReceivedMessageIsCorrect()
{
var port = 15000;
var client = new SimpleClient(port);
var server = new SimpleServer(port);
server.Listen();
client.Listen();
client.SendCommand(new GetMessagesCommand("First message"));
await server.AcceptCommand();
var receivedCommands = server.ReceivedCommands;
receivedCommands.Should().BeEquivalentTo("First message");
}