Unit Testing

Stakeholders demand quick fixes for a buggy app release. Such patching is costly, and does not always offer a complete solution. Break the cycle with unit testing, a worthwhile investment in project quality.

Testing can be a daunting task even for experienced teams with an abundance of resources. How do Toptal developers write tests and what do they use? In this article, Toptal React Developer Boris Yordanov introduces you to Picasso, a component library designed by our developers for in-house use.

In an age of continuous delivery, Java developers have to be confident that their changes don't break existing code, hence automated testing. There's more than one valid approach to it, but how can you keep them straight?

Using Mockito is not just a matter of adding another dependency. It requires changing how you think about your unit tests while removing a lot of boilerplate. In this article, we cover multiple mock interfaces, listening invocations, matchers, and argument captors, and see firsthand how Mockito makes your tests cleaner and easier to understand.