Detox is an end-to-end testing and automation framework that runs on a device or a simulator, just like an actual end user.
Software development demands fast responses to user and/or market needs. This fast development cycle can result (sooner or later) in parts of a project being broken, especially when the project grows so large. Developers get overwhelmed with all the technical complexities of the project, and even the business people start to find it hard to keep track of all scenarios the product caters for.
In this scenario, there’s a need for software to keep on top of the project and allow us to deploy with confidence. But why end-to-end testing? Aren’t unit testing and integration testing enough? And why bother with the complexity that comes with end-to-end testing?
First of all, the complexity issue has been tackled by most of the end-to-end frameworks, to the extent that some tools (whether free, paid or limited) allow us to record the test as a user, then replay it and generate the necessary code. Of course, that doesn’t cover the full range of scenarios that you’d be able to address programmatically, but it’s still a very handy feature. In this book, we introduce end-to-end testing and Detox.