Roll Observatory packages and add a roll script

packages/unittest/test/protect_async_test.dart

Index: packages/unittest/test/protect_async_test.dart
diff --git a/packages/unittest/test/protect_async_test.dart b/packages/unittest/test/protect_async_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..19211f2bb3e83a860747f78c31c348930500847a
--- /dev/null
+++ b/packages/unittest/test/protect_async_test.dart
@@ -0,0 +1,58 @@
+// Copyright (c) 2013, 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 unittest.protect_async_test;
+
+import 'dart:async';
+
+import 'package:unittest/unittest.dart';
+
+import 'package:metatest/metatest.dart';
+
+void main() => initTests(_test);
+
+void _test(message) {
+  initMetatest(message);
+
+  expectTestResults('protectAsync', () {
+    test('protectAsync0', () {
+      var protected = () {
+        throw new StateError('error during protectAsync0');
+      };
+      new Future(protected);
+    });
+
+    test('protectAsync1', () {
+      var protected = (arg) {
+        throw new StateError('error during protectAsync1: $arg');
+      };
+      new Future(() => protected('one arg'));
+    });
+
+    test('protectAsync2', () {
+      var protected = (arg1, arg2) {
+        throw new StateError('error during protectAsync2: $arg1, $arg2');
+      };
+      new Future(() => protected('arg1', 'arg2'));
+    });
+
+    test('throw away 1', () {
+      return new Future(() {});
+    });
+  }, [
+    {
+      'result': 'error',
+      'message': 'Caught Bad state: error during protectAsync0'
+    },
+    {
+      'result': 'error',
+      'message': 'Caught Bad state: error during protectAsync1: one arg'
+    },
+    {
+      'result': 'error',
+      'message': 'Caught Bad state: error during protectAsync2: arg1, arg2'
+    },
+    {'result': 'pass', 'message': ''}
+  ]);
+}