Add WixRunnerResult to improve success assertion

1 files changed, 22 insertions, 0 deletions

diff --git a/src/WixToolset.Core.TestPackage/WixRunnerResult.cs b/src/WixToolset.Core.TestPackage/WixRunnerResult.cs
new file mode 100644
index 00000000..45e31c2d
--- /dev/null
+++ b/src/WixToolset.Core.TestPackage/WixRunnerResult.cs
@@ -0,0 +1,22 @@
+// 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 WixToolset.Core.TestPackage
+{
+    using System;
+    using System.Linq;
+    using WixToolset.Data;
+    using Xunit;
+
+    public class WixRunnerResult
+    {
+        public int ExitCode { get; set; }
+
+        public Message[] Messages { get; set; }
+
+        public WixRunnerResult AssertSuccess()
+        {
+            Assert.True(0 == this.ExitCode, $"MSBuild failed unexpectedly. Output:\r\n{String.Join("\r\n", this.Messages.Select(m => m.ToString()).ToArray())}");
+            return this;
+        }
+    }
+}