AddTime test added and works

Microwave.Test.Unit/CookControllerTest.cs

@@ -83,5 +83,13 @@ namespace Microwave.Test.Unit
             powerTube.Received().TurnOff();
         }
 
+        [Test]
+        public void AddCookingTime_IsCooking_AddTimeCalled()
+        {
+            uut.StartCooking(50, 60);
+            uut.AddCookingTime();
+
+            timer.Received().AddTime(10);
+        }
     }
 }
\ No newline at end of file

Microwave.Test.Unit/TimerTest.cs

@@ -147,5 +147,25 @@ namespace Microwave.Test.Unit
 
             Assert.That(uut.TimeRemaining, Is.EqualTo(5-ticks*1));
         }
+
+        [TestCase(5)]
+        public void AddTime_Started_TimeRemainingIncreased(int ticks)
+        {
+            ManualResetEvent pause = new ManualResetEvent(false);
+            int ticksGone = 0;
+            uut.TimerTick += (sender, args) =>
+            {
+                ticksGone++;
+                if (ticksGone >= ticks)
+                    pause.Set();
+            };
+            uut.Start(5);
+            uut.AddTime(2);
+
+            // wait for ticks, only a little longer
+            pause.WaitOne(ticks * 1000 + 100);
+
+            Assert.That(uut.TimeRemaining, Is.EqualTo(7 - ticks * 1));
+        }
     }
 }
\ No newline at end of file

Microwave.Test.Unit/UserInterfaceTest.cs

@@ -336,6 +336,18 @@ namespace Microwave.Test.Unit
             light.Received(1).TurnOff();
         }
 
+        [Test]
+        public void AddCookingTime_TimeButtonPressedAfterStart_AddCookingTimeCalled()
+        {
+            powerButton.Pressed += Raise.EventWith(this, EventArgs.Empty);
+            timeButton.Pressed += Raise.EventWith(this, EventArgs.Empty);
+            startCancelButton.Pressed += Raise.EventWith(this, EventArgs.Empty);
+
+            timeButton.Pressed += Raise.EventWith(this, EventArgs.Empty);
+
+            cooker.Received().AddCookingTime();
+        }
+
 
     }