Widget testing fundamentals
In this section, we’ll explore the fundamentals of widget testing in Flutter. Widget tests, also known as component tests, verify that the widgets in your app behave as expected. These tests are more comprehensive than unit tests as they cover the UI and user interactions.
Widget testing ensures that your app’s UI components render correctly and interact with each other as intended. By simulating user interactions, widget tests help catch UI bugs and ensure a seamless user experience.
By the end of this section, you’ll be able to create and run widget tests to verify the behavior of your Flutter app’s UI components.
Implementing a golden file test
Golden testing is a form of visual regression testing. In Flutter, golden tests compare the rendered UI of a widget to a reference image that we call a “golden” image. This helps ensure that the UI doesn’t change unexpectedly. If the widget’s appearance...