await/async run test

gistfile1.cs

using System;
using System.Collections.Concurrent;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
  internal class Program
  {
    private static ConcurrentQueue<int> _a = new ConcurrentQueue<int>();

    private static void Main(string[] args)
    {
      Task.WaitAll(GetValue());
      Console.ReadLine();
    }

    private static async Task GetValue()
    {
      var stringGetAsync = Test1Async();
      var keyDeleteAsync = Test2Async();
    
      if (!await ExecuteAsync()) return;
      var target = await stringGetAsync;
      var result = await keyDeleteAsync;
      Console.WriteLine(target);
      Console.WriteLine(result);
    }
    
    private static async Task<bool> ExecuteAsync()
    {
      Console.WriteLine("Execute runs." + _a.Count);
      await Task.Delay(1000);
      Console.WriteLine("Execute exit.");
      return true;
    }
    
    private static async Task<bool> Test2Async()
    {
      Console.WriteLine("Test2Async runs." + _a.Count);
      _a.Enqueue(122);
      await Task.Delay(10);
      Console.WriteLine("Test2 exit.");
      return true;
    }

    private static async Task<string> Test1Async()
    {
      Console.WriteLine("Test1Async runs. " + _a.Count);
      _a.Enqueue(12);
      await Task.Delay(100);
      Console.WriteLine("Test1 exit.");
      return "OK";
    }
  }
}