using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

using System.Reflection;

using System.Collections.ObjectModel;

using System.Threading;

using System.Threading.Tasks;

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

using FluentAssertions;

​

//https://stackoverflow.com/questions/59990705/odd-behaviour-encountered-when-testing-asynchronous-process

//https://stackoverflow.com/review/close/25230022

​

    public class SomeClass

    {

        //... FIXED

​

        private bool _success;

        private bool _failure;

​

        public SomeClass()

        {

            //...

            _success = false;

            _failure = false;

        }

​

        public bool IsSuccess()

        {

            return _success;

        }

​

        public bool IsFailed()

        {

            return _failure;

        }

​

        public async void Start()

        {

            //...FIXED

            if (isSuccessful) _success = true;

            else _failed = true;

        }

    }

​

    public class SomeTestClass//()FIXED

    {

        [Test]

        public void SomeTest()

        {

            _client = new SomeClass();

​

            _client.IsConnected().Should().BeFalse();

            _client.IsFailed().Should().BeFalse();

​

            WaitForClientToConnect();

​

            _client.IsConnected().Should().BeTrue();

            _client.IsFailed().Should().BeFalse();

        }

​

        private void WaitForClientToConnect()

        {

            var task = Task.Run(_client.Connect);

            task.Wait();

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            new SomeTestClass().SomeTest();

        }   

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

        public static string GetNetCoreVersion()

        {

            //https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be

            //

            var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

            var assemblyPath = assembly.CodeBase.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)

                return assemblyPath[netCoreAppIndex + 1];

            return null;

        }

    }

​