Added TemplatedControl tests.

Perspex.UnitTests/Controls/TemplatedControlTests.cs

@@ -0,0 +1,100 @@
+// -----------------------------------------------------------------------
+// <copyright file="TemplatedControlTests.cs" company="Steven Kirk">
+// Copyright 2013 MIT Licence. See licence.md for more information.
+// </copyright>
+// -----------------------------------------------------------------------
+
+namespace Perspex.UnitTests.Controls
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Linq;
+    using System.Text;
+    using System.Threading.Tasks;
+    using Microsoft.VisualStudio.TestTools.UnitTesting;
+    using Perspex.Controls;
+
+    [TestClass]
+    public class TemplatedControlTests
+    {
+        [TestMethod]
+        public void Template_Doesnt_Get_Executed_On_Set()
+        {
+            bool executed = false;
+            
+            var template = new ControlTemplate(_ => 
+            {
+                executed = true;
+                return new Control();
+            });
+
+            var target = new TemplatedControl
+            {
+                Template = template,
+            };
+
+            Assert.IsFalse(executed);
+        }
+
+        [TestMethod]
+        public void Template_Gets_Executed_On_Reading_Visual_Children()
+        {
+            bool executed = false;
+
+            var template = new ControlTemplate(_ =>
+            {
+                executed = true;
+                return new Control();
+            });
+
+            var target = new TemplatedControl
+            {
+                Template = template,
+            };
+
+            var children = ((IVisual)target).VisualChildren.ToArray();
+
+            Assert.IsTrue(executed);
+        }
+
+        [TestMethod]
+        public void Template_Result_Becomes_Visual_Child()
+        {
+            Control templateResult = new Control();
+
+            var template = new ControlTemplate(_ =>
+            {
+                return templateResult;
+            });
+
+            var target = new TemplatedControl
+            {
+                Template = template,
+            };
+
+            var children = ((IVisual)target).VisualChildren.ToArray();
+
+            CollectionAssert.AreEqual(new[] { templateResult }, children);
+        }
+
+        [TestMethod]
+        public void TemplatedParent_Is_Set_On_Generated_Template()
+        {
+            Control templateResult = new Control();
+
+            var template = new ControlTemplate(_ =>
+            {
+                return templateResult;
+            });
+
+            var target = new TemplatedControl
+            {
+                Template = template,
+            };
+
+            var children = ((IVisual)target).VisualChildren.ToArray();
+
+            Assert.AreEqual(target, templateResult.TemplatedParent);
+        }
+    }
+}

Perspex.UnitTests/Perspex.UnitTests.csproj

@@ -69,6 +69,7 @@
   </Choose>
   <ItemGroup>
     <Compile Include="Controls\ControlTests.cs" />
+    <Compile Include="Controls\TemplatedControlTests.cs" />
     <Compile Include="PerspexPropertyTests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="PerspexObjectTests.cs" />

Perspex/Controls/TemplatedControl.cs

@@ -11,7 +11,7 @@ namespace Perspex.Controls
     using System.Linq;
     using Perspex.Media;
 
-    public abstract class TemplatedControl : Control, IVisual, ITemplatedControl
+    public class TemplatedControl : Control, IVisual, ITemplatedControl
     {
         public static readonly PerspexProperty<ControlTemplate> TemplateProperty =
             PerspexProperty.Register<TemplatedControl, ControlTemplate>("Template");