Simply building an application is not even half the battle and user-testing as a developer introduces a huge gap in testing strategy. Test coverage is a critical weapon when it comes to finding bugs, before they ever manifest to an end user.

Luckily, Go provides all the tools necessary to implement automated unit tests and the logging architecture necessary to support it.

In this chapter, we looked at both loggers and testing options. By producing multiple loggers for different messages, we were able separate warnings from errors brought about by internal application failures.

We then examined unit testing using the test and the httptest packages to automatically check our application and keep it current by testing for potential breaking changes.

In Chapter 9, Security, we'll look at implementing security more thoroughly; from better TLS/SSL, to preventing injection and man-in-the-middle and cross-site request forgery attacks in our application.