1 files changed, 73 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core.UnitTests/EventTriggerTest.cs b/Xamarin.Forms.Core.UnitTests/EventTriggerTest.cs
new file mode 100644
index 00000000..89034a03
--- /dev/null
+++ b/Xamarin.Forms.Core.UnitTests/EventTriggerTest.cs
@@ -0,0 +1,73 @@
+using System;
+using NUnit.Framework;
+
+namespace Xamarin.Forms.Core.UnitTests
+{
+	internal class MockTriggerAction : TriggerAction<BindableObject>
+	{
+		public bool Invoked { get; set;}
+
+		protected override void Invoke (BindableObject sender)
+		{
+			Invoked = true;
+		}
+	}
+
+	internal class MockBindableWithEvent : VisualElement
+	{
+		public void FireEvent ()
+		{
+			if (MockEvent != null)
+				MockEvent (this, EventArgs.Empty);
+		}
+
+		public void FireEvent2 ()
+		{
+			if (MockEvent2 != null)
+				MockEvent2 (this, EventArgs.Empty);
+		}
+
+		public event EventHandler MockEvent;
+		public event EventHandler MockEvent2;
+	}
+
+	[TestFixture]
+	public class EventTriggerTest : BaseTestFixture
+	{
+		[Test]
+		public void TestTriggerActionInvoked ()
+		{
+			var bindable = new MockBindableWithEvent ();
+			var triggeraction = new MockTriggerAction ();
+			var eventtrigger = new EventTrigger () { Event = "MockEvent", Actions = { triggeraction } };
+			var collection = bindable.Triggers;
+			collection.Add (eventtrigger);
+
+			Assert.False (triggeraction.Invoked);
+			bindable.FireEvent ();
+			Assert.True (triggeraction.Invoked);
+		}
+			
+		[Test]
+		public void TestChangeEventOnEventTrigger ()
+		{
+			var bindable = new MockBindableWithEvent ();
+			var triggeraction = new MockTriggerAction ();
+			var eventtrigger = new EventTrigger  { Event = "MockEvent", Actions = { triggeraction } };
+			var collection = bindable.Triggers;
+			collection.Add (eventtrigger);
+
+			triggeraction.Invoked = false;
+			Assert.False (triggeraction.Invoked);
+			bindable.FireEvent ();
+			Assert.True (triggeraction.Invoked);
+
+			triggeraction.Invoked = false;
+			Assert.False (triggeraction.Invoked);
+			bindable.FireEvent2 ();
+			Assert.False (triggeraction.Invoked);
+
+			Assert.Throws<InvalidOperationException>(()=> eventtrigger.Event = "MockEvent2");
+		}
+	}	
+}
+\ No newline at end of file