Testrunner for 3rd parties.

utils/testrunner/pipeline_task.dart

Index: utils/testrunner/pipeline_task.dart
===================================================================
--- utils/testrunner/pipeline_task.dart	(revision 0)
+++ utils/testrunner/pipeline_task.dart	(revision 0)
@@ -0,0 +1,23 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// A test execution pipeline is made up of a list of tasks. Each task is a
+// subclass of [PipelineTask].
+abstract class PipelineTask {
+
+  abstract void execute(Path testfile, List stdout, List stderr,
+                       bool verboseLogging, Function exitHandler);
+
+  // This takes a string used in a template and does macro expansion for
+  // a specific test file.
+  String concretize(String template, Path testfile) {
+    return template.
+        replaceAll(Meta.fullFilePath, testfile.toNativePath()).
+        replaceAll(Meta.filenameNoExtension, testfile.filenameWithoutExtension).
+        replaceAll(Meta.filename, testfile.filename).
+        replaceAll(Meta.directory, testfile.directoryPath.toString());
+  }
+}
+
+