Updated defrost method test

Microwave.Test.Unit/CookControllerTest.cs

@@ -96,10 +96,13 @@ namespace Microwave.Test.Unit
         [Test]
         public void Cooking_Defrost_ToggleTest()
         {
+
             uut.Defrost(700);
             uut.StartCooking(700, 30);
-
+            uut.Stop();
             
+            powerTube.Recieved(2).TurnOn();
+            powerTube.Recieved(1).TurnOff();
 
 
         }