From 5cac3441738744ca79ac6a4256d1f99631dbad8d Mon Sep 17 00:00:00 2001
From: Rob Mensching <rob@firegiant.com>
Date: Thu, 10 Feb 2022 14:25:09 -0800
Subject: Add logging to tests to help diagnose intermittent test failures

---
 src/internal/WixBuildTools.TestSupport/TestData.cs | 31 +++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

(limited to 'src/internal/WixBuildTools.TestSupport/TestData.cs')

diff --git a/src/internal/WixBuildTools.TestSupport/TestData.cs b/src/internal/WixBuildTools.TestSupport/TestData.cs
index 8587330d..309e9038 100644
--- a/src/internal/WixBuildTools.TestSupport/TestData.cs
+++ b/src/internal/WixBuildTools.TestSupport/TestData.cs
@@ -4,13 +4,42 @@ namespace WixBuildTools.TestSupport
 {
     using System;
     using System.IO;
+    using System.Reflection;
+    using System.Runtime.CompilerServices;
 
     public class TestData
     {
         public static string Get(params string[] paths)
         {
-            var localPath = Path.GetDirectoryName(new Uri(System.Reflection.Assembly.GetCallingAssembly().CodeBase).LocalPath);
+            var localPath = Path.GetDirectoryName(new Uri(Assembly.GetCallingAssembly().CodeBase).LocalPath);
             return Path.Combine(localPath, Path.Combine(paths));
         }
+
+        public static string GetUnitTestLogsFolder([CallerFilePath] string path = "", [CallerMemberName] string method = "")
+        {
+            var startingPath = Path.GetDirectoryName(new Uri(Assembly.GetCallingAssembly().CodeBase).LocalPath);
+            var buildPath = startingPath;
+
+            while (!String.IsNullOrEmpty(buildPath))
+            {
+                var folderName = Path.GetFileName(buildPath);
+                if (String.Equals("build", folderName, StringComparison.OrdinalIgnoreCase))
+                {
+                    break;
+                }
+
+                buildPath = Path.GetDirectoryName(buildPath);
+            }
+
+            if (String.IsNullOrEmpty(buildPath))
+            {
+                throw new InvalidOperationException($"Could not find the 'build' folder in the test path: {startingPath}. Cannot get test logs folder without being able to find the build folder.");
+            }
+
+            var testLogsFolder = Path.Combine(buildPath, "logs", "UnitTests", $"{Path.GetFileNameWithoutExtension(path)}_{method}");
+            Directory.CreateDirectory(testLogsFolder);
+
+            return testLogsFolder;
+        }
     }
 }
-- 
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