Added test base class

tests/HotUI.Tests/BindingTests.cs

@@ -1,8 +1,7 @@
 using System;
 using Xunit;
-[assembly: CollectionBehavior (DisableTestParallelization = true)]
 namespace HotUI.Tests {
-	public class BindingTests {
+	public class BindingTests : TestBase {
 
 		public class StatePage : View {
 			public readonly State<int> clickCount = new State<int> (1);

tests/HotUI.Tests/EnvironmentTests.cs

@@ -2,7 +2,7 @@
 using Xunit;
 
 namespace HotUI.Tests {
-	public class EnvironmentTests {
+	public class EnvironmentTests : TestBase {
 
 		public class MyBindingObject : BindingObject {
 			public string Foo {

tests/HotUI.Tests/TestBase.cs

@@ -0,0 +1,12 @@
+using System;
+using Xunit;
+
+[assembly: CollectionBehavior (DisableTestParallelization = true)]
+namespace HotUI.Tests {
+	public class TestBase {
+		public TestBase ()
+		{
+			UI.Init ();
+		}
+	}
+}

tests/HotUI.Tests/UI.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Threading;
+
+namespace HotUI.Tests {
+	public static class UI {
+		static bool hasInit;
+		public static void Init ()
+		{
+			if (hasInit)
+				return;
+			hasInit = true;
+			Registrar.Handlers.Register<Button, GenericViewHandler> ();
+			Registrar.Handlers.Register<TextField, GenericViewHandler> ();
+			Registrar.Handlers.Register<Text, GenericViewHandler> ();
+			Registrar.Handlers.Register<Toggle, GenericViewHandler> ();
+			Registrar.Handlers.Register<VStack, GenericViewHandler> ();
+			Registrar.Handlers.Register<HStack, GenericViewHandler> ();
+			Registrar.Handlers.Register<ScrollView, GenericViewHandler> ();
+			Registrar.Handlers.Register<Image, GenericViewHandler> ();
+			Registrar.Handlers.Register<ListView, GenericViewHandler> ();
+			Registrar.Handlers.Register<View, GenericViewHandler> ();
+			Registrar.Handlers.Register<ContentView, GenericViewHandler> ();
+
+
+			Device.PerformInvokeOnMainThread = (a) => a ();
+		}
+	}
+}