Add asynchronous test suite runner to Dart rewrite of test scripts.

tests/standalone/test_config.dart

Index: tests/standalone/test_config.dart
diff --git a/tests/standalone/test_config.dart b/tests/standalone/test_config.dart
new file mode 100644
index 0000000000000000000000000000000000000000..170de26c172f5dda8f9a80ab0b35ea52e94f979a
--- /dev/null
+++ b/tests/standalone/test_config.dart
@@ -0,0 +1,59 @@
+// Copyright (c) 2011, 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.
+
+#library("standalone_test_config");
+
+#import("../../tools/testing/dart/test_runner.dart");
+
+class StandaloneTestSuite {
+  final String directoryPath = "tests/standalone/src";
+  Function doTest;
+  Function doDone;
+  String shellPath;
+  String pathSeparator;
+
+  StandaloneTestSuite() {
+    shellPath = getDartShellFileName() ;
+    pathSeparator = new Platform().pathSeparator();
+  }
+
+  void forEachTest(Function onTest, [Function onDone = null]) {
+    doTest = onTest;
+    doDone = onDone;
+    processDirectory();
+  }
+
+  void processDirectory() {
+    Directory dir = new Directory(directoryPath);
+    if (!dir.existsSync()) {
+      dir = new Directory(".." + pathSeparator + directoryPath);
+      Expect.isTrue(dir.existsSync(),
+                    "Cannot find tests/corelib/src or ../tests/corelib/src");
+      // TODO(ager): Use dir.errorHandler instead when it is implemented.
+    }
+    dir.fileHandler = processFile;
+    dir.doneHandler = doDone;
+    dir.list(false);
+  }
+
+  void processFile(String filename) {
+    if (filename.endsWith("Test.dart")) {
+      int start = filename.lastIndexOf(pathSeparator);
+      String displayName = filename.substring(start + 1, filename.length - 5);
+      // TODO(whesse): Gather test case info from status file and test file.
+      doTest(new TestCase(displayName,
+                          shellPath,
+                          <String>["--enable_type_checks",
+                                   "--ignore-unrecognized-flags",
+                                   filename ],
+                          completeHandler,
+                          new Set.from([PASS, FAIL, CRASH, TIMEOUT])));
+    }
+  }
+  
+  void completeHandler(TestCase testCase) {
+    TestOutput output = testCase.output;
+    print("Exit code: ${output.exitCode} Time: ${output.time}");
+  }
+}