1 files changed, 83 insertions, 0 deletions
diff --git a/linker/Tests/TestCasesRunner/TestCaseSandbox.cs b/linker/Tests/TestCasesRunner/TestCaseSandbox.cs
new file mode 100644
index 000000000..7eb29f4b7
--- /dev/null
+++ b/linker/Tests/TestCasesRunner/TestCaseSandbox.cs
@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using Mono.Linker.Tests.Cases.Expectations.Assertions;
+using Mono.Linker.Tests.Extensions;
+using Mono.Linker.Tests.TestCases;
+
+namespace Mono.Linker.Tests.TestCasesRunner {
+	public class TestCaseSandbox {
+		protected readonly TestCase _testCase;
+		protected readonly NPath _directory;
+
+		public TestCaseSandbox (TestCase testCase)
+			: this (testCase, NPath.SystemTemp)
+		{
+		}
+
+		public TestCaseSandbox (TestCase testCase, NPath rootTemporaryDirectory)
+			: this (testCase, rootTemporaryDirectory, string.Empty)
+		{
+		}
+
+		public TestCaseSandbox (TestCase testCase, string rootTemporaryDirectory, string namePrefix)
+			: this (testCase, rootTemporaryDirectory.ToNPath (), namePrefix)
+		{
+		}
+
+		public TestCaseSandbox (TestCase testCase, NPath rootTemporaryDirectory, string namePrefix)
+		{
+			_testCase = testCase;
+			var name = string.IsNullOrEmpty (namePrefix) ? "linker_tests" : $"{namePrefix}_linker_tests";
+			_directory = rootTemporaryDirectory.Combine (name);
+
+			_directory.DeleteContents ();
+
+			InputDirectory = _directory.Combine ("input").EnsureDirectoryExists ();
+			OutputDirectory = _directory.Combine ("output").EnsureDirectoryExists ();
+			ExpectationsDirectory = _directory.Combine ("expectations").EnsureDirectoryExists ();
+		}
+
+		public NPath InputDirectory { get; }
+
+		public NPath OutputDirectory { get; }
+
+		public NPath ExpectationsDirectory { get; }
+
+		public IEnumerable<NPath> SourceFiles {
+			get { return _directory.Files ("*.cs"); }
+		}
+
+		public IEnumerable<NPath> InputDirectoryReferences {
+			get { return InputDirectory.Files ("*.dll"); }
+		}
+
+		public IEnumerable<NPath> ExpectationsDirectoryReferences {
+			get { return ExpectationsDirectory.Files ("*.dll"); }
+		}
+
+		public IEnumerable<NPath> LinkXmlFiles {
+			get { return InputDirectory.Files ("*.xml"); }
+		}
+
+		public virtual void Populate (TestCaseMetadaProvider metadataProvider)
+		{
+			_testCase.SourceFile.Copy (_directory);
+
+			if (_testCase.HasLinkXmlFile)
+				_testCase.LinkXmlFile.Copy (InputDirectory);
+
+			GetExpectationsAssemblyPath ().Copy (InputDirectory);
+
+			foreach (var dep in metadataProvider.AdditionalFilesToSandbox ()) {
+				dep.FileMustExist ().Copy (_directory);
+			}
+
+			InputDirectoryReferences.Copy (ExpectationsDirectory);
+		}
+
+		private static NPath GetExpectationsAssemblyPath ()
+		{
+			return new Uri (typeof (KeptAttribute).Assembly.CodeBase).LocalPath.ToNPath ();
+		}
+	}
+}
+\ No newline at end of file