Сетевое программирование. Network programming

using System.Net;
using System.Net.Sockets;
using NetWorking;
using SimpleFTP;
using System.Text;
 
namespace SimpleFTP.Tests;
 
public class Tests
{
    /*[Test]
    public async Task GetResponseForClient()
    {
        var checker = "2 ./Files/1t.txt false .Files/2t.txt true\n";
        const int port = 8888;
        Console.WriteLine("h");
        var server = new Server(IPAddress.Any, port);
        Console.WriteLine("w");
        var client = new TcpClient("localhost", port);
        var stream = client.GetStream();
        var writer = new StreamWriter(stream);
        await writer.WriteLineAsync("1 ./Files\n");
        await writer.FlushAsync();
        var reader = new StreamReader(stream);
        var responseClient = await reader.ReadToEndAsync();
        Assert.That(responseClient, Is.EqualTo(checker));
    }*/
 
    [Test]
public async Task GetResponseForClient1()
{
    var checker = "1 ./Files\n"; 
    const int port = 8890;
 
    var server = new TcpListener(IPAddress.Any, port);
    server.Start(); 
    var socket = await server.AcceptSocketAsync(); 
 
    var client = new TcpClient("localhost", port);
    var streamclient = client.GetStream();
    var writer = new StreamWriter(streamclient);
    await writer.WriteLineAsync("1 ./Files\n");
    await writer.FlushAsync();
 
    var stream = new NetworkStream(socket);
    var reader = new StreamReader(stream);
 
    var buffer = new byte[1024];
    int bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length);
    string message = Encoding.UTF8.GetString(buffer, 0, bytesRead);
 
    Assert.That(message, Is.EqualTo(checker));
   
    /*if (message == "1 ./Files\n") 
    {
        await writer.WriteLineAsync("1 ./Files\n");
        await writer.FlushAsync();
    }
 
    // Читаем ответ от сервера
    var response = await reader.ReadToEndAsync();
    Assert.That(response, Is.EqualTo(checker));
 
    
    writer.Close();
    reader.Close();
    streamclient.Close();
    stream.Close();
    socket.Close();
    client.Close();
    server.Stop(); */
}
 
    }

const string checker = "Nya-ha-ha-ha!!!";
const int port = 12345;
var ip = IPAddress.Loopback;
 
using var server = new TcpListener(ip, port);
server.Start();
 
 
using var client = new TcpClient();
await client.ConnectAsync(ip, port);
 
using var serverClient = await server.AcceptTcpClientAsync();
 
using var streamClient = client.GetStream();
using var writer = new StreamWriter(streamClient);
await writer.WriteLineAsync(checker);
await writer.FlushAsync();
 
using var streamServerClient = serverClient.GetStream();
using var reader = new StreamReader(streamServerClient);
var message = await reader.ReadLineAsync();