Imported Upstream version 5.20.0.180

Former-commit-id: ff953ca879339fe1e1211f7220f563e1342e66cb

mcs/class/test-helpers/TestResourceHelper.cs

@@ -0,0 +1,85 @@
+//
+// TestResourceHelper.cs
+//
+// Author:
+//	Alexander Köplinger (alkpli@microsoft.com)
+//
+// Copyright (C) Microsoft
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Globalization;
+using System.Reflection;
+using System.IO;
+
+using NUnit.Framework;
+
+namespace MonoTests.Helpers
+{
+	public static class TestResourceHelper
+	{
+		static string tempFolder;
+		static Assembly currentAssembly;
+
+		static TestResourceHelper ()
+		{
+			// create temp directory for extracting all the test resources to disk
+			tempFolder = Path.Combine (Path.GetTempPath(), Path.GetRandomFileName ());
+			Directory.CreateDirectory (tempFolder);
+
+			currentAssembly = Assembly.GetExecutingAssembly ();
+			foreach (string resourceName in currentAssembly.GetManifestResourceNames ())
+			{
+				// skip non-test assets
+				if (!resourceName.StartsWith ("Test/"))
+					continue;
+
+				// persist the resource to disk
+				var stream = currentAssembly.GetManifestResourceStream (resourceName);
+				var resourcePath = Path.Combine (tempFolder, resourceName);
+				Directory.CreateDirectory (Path.GetDirectoryName (resourcePath));
+
+				using (var file = File.Create (resourcePath))
+				{
+					stream.CopyTo (file);
+				}
+			}
+
+			// delete the temp directory at the end of the test process
+			AppDomain.CurrentDomain.ProcessExit += (s,e) =>
+			{
+				try { Directory.Delete (tempFolder, true); }
+				catch { }
+			};
+		}
+
+		public static string GetFullPathOfResource (string resourceName)
+		{
+			return Path.Combine (tempFolder, resourceName);
+		}
+
+		public static Stream GetStreamOfResource (string resourceName)
+		{
+			return currentAssembly.GetManifestResourceStream (resourceName);
+		}
+	}
+}