Add DirectoryTestSuite.

utils/tests/pub/pub_tests.dart

+// 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.
+
+#library('pub_tests');
+
+//#import('../../../pub/pub.dart');

[Emily Fortuna, 2012/03/28 23:10:11]

why is this line here but commented out?

[Bob Nystrom, 2012/03/29 00:10:17]

Pub doesn't exist yet! This is a work-in-progress. It's basically a shell so
that I can use it to validate that the test.dart changes work. Removed it.

+
+// TODO(rnystrom): Better path to unittest.
+#import('../../../client/testing/unittest/unittest_vm.dart');
+
+main() {
+  test('should pass', () {
+    expect(1).equals(1);
+  });
+}