Polish existing skeleton API.

tests/lib/i18n/date_format_test.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('date_format_test');
-
-#import('../../../lib/i18n/date_format.dart');
-#import('../../../lib/unittest/unittest.dart');
-
-/**
- * Tests the DateFormat library in dart.
- */
-
-main() {
-  test('Date formatting', () {
-    var date_format = new DateFormat.fullDate();
-    Date date = new Date.now();
-    // TODO(efortuna): Change the expectation once we have a functioning date
-    // formatting class.
-    Expect.stringEquals(date.toString(), date_format.format(date));
-    
-    date_format = new DateFormat("hh:mm:ss");
-    Expect.stringEquals(date.toString(), date_format.format(date));
-  });
-
-  test('Date parsing', () {
-    var date_format = new DateFormat.fullDate();
-    Date date =  new Date.now();
-    // TODO(efortuna): Change the expectation once we have a functioning date
-    // formatting class.
-    Expect.stringEquals(date_format.parse(date.toString()), date.toString());
-  });
-}