Widget testing
Getting the right mix of tests is important so that you can test your app optimally without reducing iteration and development velocity. Writing unit tests for well-defined library functions makes sense, but when it comes to user interactions, you often want to iterate and understand user interactions before settling on a design, which then may change as fashion or best practices change. Therefore, your test itself should be more high-level, looking at components rather than specific functions. One example of this is widget tests, and Flutter helps us to write widget tests to test that widgets work as expected.
Widget tests are used to validate widgets in an isolated way. They look very similar to unit tests but focus on widgets. The main goal is to check widget interactions and whether widgets visually match expectations. As widgets live in the widget tree inside the Flutter context, widget tests require the framework environment to be executed. That is why Flutter...