import 'package:flutter/material.dart'; import 'package:flutter/rendering.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('PhysicalModel - creates a physical model layer when it needs compositing', (WidgetTester tester) async { debugDisableShadows = false; await tester.pumpWidget(new Directionality( textDirection: TextDirection.ltr, child: new PhysicalModel( shape: BoxShape.rectangle, color: Colors.grey, shadowColor: Colors.red, elevation: 1.0, child: new Material(child: new TextField(controller: new TextEditingController())), ), ), ); await tester.pump(); final RenderPhysicalModel renderPhysicalModel = tester.allRenderObjects.firstWhere((RenderObject object) => object is RenderPhysicalModel); expect(renderPhysicalModel.needsCompositing, true); final PhysicalModelLayer physicalModelLayer = tester.layers.firstWhere((Layer layer) => layer is PhysicalModelLayer); expect(physicalModelLayer.shadowColor, Colors.red); expect(physicalModelLayer.color, Colors.grey); expect(physicalModelLayer.elevation, 1.0); debugDisableShadows = true; }); }