Javascript 我应该如何测试使用node构建的超级简单前端应用程序？

我按照以下步骤设置了一个非常简单的入门级前端应用程序：

- $ yo (Webapp Generator no css frameworks)
- $ bower install -S underscore
- add _.times(3, function () { console.log('rawr') });
- $ grunt

预期结果：

everything runs fine.

grunt aborts due to warnings. ('_' is not defined.)
grunt server runs fine and '_' is properly defined

实际结果：

everything runs fine.

grunt aborts due to warnings. ('_' is not defined.)
grunt server runs fine and '_' is properly defined

问题2:

- What should I be doing to make grunt happy?
- How should I be testing this kind of setup? (bower install jasmine?)

我正在寻找快速设置简单前端应用程序的新工作流。一段时间以来，我一直在手动设置一切，并试图扩展我的技能