WidgetTester

tester

async

final

SemanticsHandle

handle

tester

binding

pipelineOwner

ensureSemantics

();

// Build our app and trigger a frame.

await

tester

pumpWidget

MaterialApp

home:

Scaffold

body:

Text

'test'

))));

final

SemanticsNode

root

tester

binding

pipelineOwner

semanticsOwner

rootSemanticsNode

final

SemanticsNode

firstNode

getChild

root