isOffstage top-level constant

const isOffstage = const _IsOffstage()

Asserts that the Finder locates the a single widget that has at least one Offstage widget ancestor.

It's important to use a full finder, since by default finders exclude offstage widgets.

Sample code

expect(find.text('Save', skipOffstage: false), isOffstage);

See also:

Implementation 

const Matcher isOffstage = _IsOffstage()