public void PerSessionTransactionService()
 {
     var address = "net.pipe://localhost/" + Guid.NewGuid();
     using (var host = new ServiceHost(typeof(PerSessionService)))
     using (var proxy = new ServiceClient(binding, address))
     {
         host.AddServiceEndpoint(typeof(IInstanceIdGetter), binding, address);
         host.Open();
         var first = proxy.GetInstanceId();
         var second = proxy.GetInstanceId();
         Assert.AreEqual(second, first);
     }
 }