Preeti Wadhwani

Every day we write a hundred, thousand lines of code to build products in the aim of impacting the lives of people in a positive way. But how can we make sure that the key features the user uses do not stop working with every new deployment? How can we get confidence that when refactoring code the existing feature still works as expected?

This talk I am going to share with you my experience of dealing with these in React Native by moving towards TDD. Also how writing unit and e2e tests helped me write better code and build beautiful apps.

2019

React Alicante

Testing in React Native: Unit & E2E

Have you ever come across a situation where you want to pause function execution for some time, for example, when you’re waiting for an API response and based on it you want to perform different some action? Or you’re waiting for your database sync to finish? If it sounds relatable, you probably handled such cases using Promises/Redux-thunk, etc. but this talk will provide a cleaner solution for dealing with such async tasks, using Redux Sagas.

Redux Sagas take advantage of an ES6 feature called Generators to make such asynchronous flows easy to read, write and test. This talk will focus on exploring Generator functions, and see how can we take advantage of it to deal with async operations and make our lives simpler.