Testing text in TextSpan

Question

If we have a TextSpan that is a child of a RichText widget, how would you test the text content.

new TextSpan(
  text: 'Hello world!',
  style: new TextStyle(color: Colors.black),
)

In your tests, with a Text widget, you can use expect(find.text('Hello world!'), findsOneWidget), but this doesn't work if you have a TextSpan.

expect(find.byType(TextSpan), findsOneWidget) also does not find any widgets of type TextSpan.

Answer 1

That's not possible. As TextSpan doesn't actually render anything. It is data information used by another object to actually render something.

What you can do instead is to find the widget to which you pass your TextSpan. And then verify it's correct