--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Stocks/Stocks.Service.Tests.Unit/StockServiceTests.cs	Mon Feb 20 13:52:35 2012 +0700
@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Xunit;
+using Stocks.Common;
+using System.Threading.Tasks;
+using System.Threading;
+
+namespace Stocks.Service.Tests.Unit
+{
+  public class StockServiceTests
+  {
+    [Fact]
+    public void Service_IsActive_property()
+    {
+      var file = "../../../Stocks.Service/companyData.json";
+      var service = new StocksService(new ConfigurationService(file));
+
+      using (var task = Task.Factory.StartNew(() =>
+        {
+          Assert.Equal(false, service.IsActive);
+          service.Start();
+          Assert.Equal(true, service.IsActive);
+          using (var task2 = Task.Factory.StartNew(() => Thread.Sleep(500)))
+            { task2.Wait(); }
+          service.Stop();
+          Assert.Equal(false, service.IsActive);
+        })) 
+      {
+        task.Wait();
+      }
+    }
+  }
+}