set something by的意思|示意

Finally, it gives you the courage to push the boundaries of your code by giving you a set of tests that tell you immediately when something breaks.

最后，它通过给出的一系列测试减轻你编码的压力，因为当测试发生中断时，它可以立即告诉你究竟发生了什么。

This is set by the application into something called the context.

这是由应用程序设置到上下文中的。

Promised to deliver something by a set date and later regretted it?

许诺既定日期内送些什么，而后有后悔呢？