When writing a test for Flutter, what happens when similar aspects appear more than one time? How to filter for the right one?

Question

I'm writing unit and integration tests for Flutter. If many widgets, with similar aspects (e.g. text), appear more than one time, how to filter for the right one?

Answer 1

There are several options:

• Finder.first finds the first occurrence of the widget
• Finder.last finds the last occurrence of the widget
• Finder.hitTestable finds only the widgets that can be reached by a hit test (e.g. by a tap)
• Finder.skipOffstage finds only widgets considered to be "on-stage" (see Offstage widget)
• find.descendant finds only widgets that are descendants of another widget

Finally you can use find.byPredicate or even extend the Finder class and get much more flexibility.