# Summary We've finally done it, we have finished implementing the Bookstore API, but wait, we're not done yet. To put forth our due diligence, we have to think long term and backup our codebase with tests. In the next chapter, that's exactly what we'll be doing. We'll be diving deep into writing unit and integration tests for our API. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://book.restfulnode.com/part-3/chapter-9/summary.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.