This article is a guide on how to mock callback functions and verify that the callback functions are called in Dart/Flutter unit tests. The article is divided into: Introduction Mocking The Callback Testing The Callback 1. Introduction Let’s say we have a function readDate with the definition below: void readData(void Function() onDataReadComplete)…

This article will show how to rebuild the default Flutter counter app using Jetpack Compose. The article is divided into two sections: UI, where the app’s user interface will be built. State, where the state of the app’s counter will be implemented. Below is a screenshot of the default Flutter…