DEV Community: Christian Findlay

Flutter: How To Mock Functions For Testing

Christian Findlay — Sat, 19 Nov 2022 07:37:57 +0000

This article explains how to mock top-level functions in Dart for Flutter widget tests.

https://www.christianfindlay.com/blog/flutter-mock-functions-for-testing

Functions don't have to be second-class citizens in Dart, and you don't have to make a new class every time you want to mock a dependency. Pass your functions into your widgets with dependency injection and replace them with substitutes for testing.

Flutter Dependency Injection: ioc_container V1

Christian Findlay — Wed, 26 Oct 2022 07:54:57 +0000

Dart doesn't really have library specifically for dependency injection. There are libraries that you can use as a service locator but they have global declarations

ioc_container is full fledged, fast and simple library for dependency injection. Check out the benchmarks to compare the performance with other libraries.

https://link.medium.com/EHKzqaV1qub

Dart Immutable Collections

Christian Findlay — Sun, 02 Oct 2022 06:58:22 +0000

Link

Immutability is an important Dart concept. The immutable annotation marks a class as being immutable, but if the class has mutable properties, it is not really immutable. This is true in the case of collections. This article discusses why and how to use immutable collections on your Dart classes.