Convert ext\ to MSTest and traversal projects.

- Move ext\ unit tests to MSTest.
- MSBuildify ext projects with MSTest execution.
- Fork test support projects for MSTest:
  - WixInternal.TestSupport
  - WixInternal.Core.TestPackage

1 files changed, 19 insertions, 0 deletions

diff --git a/src/internal/WixInternal.MSTestSupport/MsbuildRunnerResult.cs b/src/internal/WixInternal.MSTestSupport/MsbuildRunnerResult.cs
new file mode 100644
index 00000000..02e25ebb
--- /dev/null
+++ b/src/internal/WixInternal.MSTestSupport/MsbuildRunnerResult.cs
@@ -0,0 +1,19 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixInternal.MSTestSupport
+{
+    using System;
+    using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+    public class MsbuildRunnerResult
+    {
+        public int ExitCode { get; set; }
+
+        public string[] Output { get; set; }
+
+        public void AssertSuccess()
+        {
+            Assert.IsTrue(0 == this.ExitCode, $"MSBuild failed unexpectedly. Output:{Environment.NewLine}{String.Join(Environment.NewLine, this.Output)}");
+        }
+    }
+}