Testing

There are many different types of testing, but for frontend, we are mainly interested in the following:

• Static - static type checking combined with linters capture common errors, like typos or incorrect syntax

• Unit tests - focus on critical behavior, business logic and the functionality of your app

• Integration tests - are making sure everything works together correctly

• End-to-end (e2e) tests - automated click-testing of critical paths (instead of relying on your users to do it for you). Or visual regression testing comparing the implementation of designs.

Benefits

• Efficient use of developers’ time by not having them test the solution manually

• After every code change, you don’t need to manually retest it (making it less expensive and less time-consuming, since devs will focus only on development)

• Easier cooperation between BE and FE (reduces interactions between platforms after each change)

• Application stability

• Reduce the number of bugs by a massive number

• Ensure that every functionality works exactly as it is supposed to

Risks you can incur by not implementing the measure

• Huge waste of money/time that could be used towards feature development

• No one can ensure a “bugless” solution and the proper behavior of all functionalities

• The bigger the solution, the more fragile it becomes

• Really hard or almost impossible to do refactoring