TeamCityParallelTests

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Task.WaitAll(Suit(1, "Seq1"), Suit(2, "Seq2"), Suit(3, "Seq3"));
        }

        public static async Task Suit(int sequence, string key)
        {
            Console.WriteLine("##teamcity[testSuiteStarted name='Suite{0}' flowId='{1}']", sequence, key);
            await Method1(sequence, key);
            await Method2(sequence, key);
            Console.WriteLine("##teamcity[testSuiteFinished name='Suite{0}' flowId='{1}']", sequence, key);        
        }

        public static async Task Method1(int sequence, string key)
        {
            Console.WriteLine("##teamcity[testStarted name='Method1{0}' flowId='{1}']", sequence, key);
            await Task.Delay(5000);
            Console.WriteLine("Method12");
            await Task.Delay(2000);
            Console.WriteLine("Method13");
            await Task.Delay(3000);
            Console.WriteLine("Method14");
            await Task.Delay(5000);
            Console.WriteLine("##teamcity[testFinished name='Method1{0}' flowId='{1}']", sequence, key);
            await Task.Delay(1000);
        }

        public static async Task Method2(int sequence, string key)
        {
            Console.WriteLine("##teamcity[testStarted name='Method2{0}' flowId='{1}']",sequence, key); 
            await Task.Delay(2000);
            Console.WriteLine("Method22");
            await Task.Delay(4000);
            Console.WriteLine("Method23");
            await Task.Delay(3000);
            Console.WriteLine("Method24");
            await Task.Delay(3000);
            Console.WriteLine("##teamcity[testFinished name='Method2{0}' flowId='{1}']", sequence, key);
            await Task.Delay(5000);
        }
    }
}