1 files changed, 43 insertions, 0 deletions
diff --git a/Xamarin.Forms.Xaml.UnitTests/XamlgFileLockTests.cs b/Xamarin.Forms.Xaml.UnitTests/XamlgFileLockTests.cs
new file mode 100644
index 00000000..4034ef5b
--- /dev/null
+++ b/Xamarin.Forms.Xaml.UnitTests/XamlgFileLockTests.cs
@@ -0,0 +1,43 @@
+using System;
+using System.IO;
+using NUnit.Framework;
+using Xamarin.Forms.Build.Tasks;
+using Xamarin.Forms.Core.UnitTests;
+
+namespace Xamarin.Forms.Xaml.UnitTests
+{
+	[TestFixture]
+	public class XamlgFileLockTests : BaseTestFixture
+	{
+		string CreateXamlInputFile ()
+		{
+			string xaml = 
+				@"<ContentPage xmlns='http://xamarin.com/schemas/2014/forms' xmlns:x='http://schemas.microsoft.com/winfx/2009/xaml' x:Class='Test.MyPage'>
+					<ContentPage.Content></ContentPage.Content> 
+				</ContentPage>";
+
+			string fileName = Path.GetTempFileName ();
+			File.WriteAllText (fileName, xaml);
+
+			return fileName;
+		}
+
+		[Test]
+		public void XamlFileShouldNotBeLockedAfterFileIsGenerated ()
+		{
+			string xamlInputFile = CreateXamlInputFile ();
+			string xamlOutputFile = Path.ChangeExtension (xamlInputFile, ".xaml.g.cs");
+			var generator = new XamlGTask ();
+			generator.BuildEngine = new DummyBuildEngine ();
+			generator.AssemblyName = "Test";
+			generator.Source = xamlInputFile;
+			generator.OutputFile = xamlOutputFile;
+			generator.Language = "C#";
+
+			generator.Execute();
+			File.Delete (xamlOutputFile);
+
+			Assert.DoesNotThrow (() => File.Delete (xamlInputFile));
+		}
+	}
+}
+\ No newline at end of file