// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter_test/flutter_test.dart'; import 'package:flutter/rendering.dart'; import 'package:flutter/widgets.dart'; void main() { testWidgets('Align smoke test', (WidgetTester tester) async { await tester.pumpWidget( Align( child: Container(), alignment: const Alignment(0.50, 0.50), ), ); await tester.pumpWidget( Align( child: Container(), alignment: const Alignment(0.0, 0.0), ), ); await tester.pumpWidget( const Align( key: GlobalObjectKey<State<StatefulWidget>>(null), alignment: Alignment.topLeft, ), ); await tester.pumpWidget(const Directionality( textDirection: TextDirection.rtl, child: Align( key: GlobalObjectKey<State<StatefulWidget>>(null), alignment: AlignmentDirectional.topStart, ), )); await tester.pumpWidget( const Align( key: GlobalObjectKey<State<StatefulWidget>>(null), alignment: Alignment.topLeft, ), ); }); testWidgets('Align control test (LTR)', (WidgetTester tester) async { await tester.pumpWidget(Directionality( textDirection: TextDirection.ltr, child: Align( child: Container(width: 100.0, height: 80.0), alignment: AlignmentDirectional.topStart, ), )); expect(tester.getTopLeft(find.byType(Container)).dx, 0.0); expect(tester.getBottomRight(find.byType(Container)).dx, 100.0); await tester.pumpWidget(Directionality( textDirection: TextDirection.ltr, child: Align( child: Container(width: 100.0, height: 80.0), alignment: Alignment.topLeft, ), )); expect(tester.getTopLeft(find.byType(Container)).dx, 0.0); expect(tester.getBottomRight(find.byType(Container)).dx, 100.0); }); testWidgets('Align control test (RTL)', (WidgetTester tester) async { await tester.pumpWidget(Directionality( textDirection: TextDirection.rtl, child: Align( child: Container(width: 100.0, height: 80.0), alignment: AlignmentDirectional.topStart, ), )); expect(tester.getTopLeft(find.byType(Container)).dx, 700.0); expect(tester.getBottomRight(find.byType(Container)).dx, 800.0); await tester.pumpWidget(Directionality( textDirection: TextDirection.ltr, child: Align( child: Container(width: 100.0, height: 80.0), alignment: Alignment.topLeft, ), )); expect(tester.getTopLeft(find.byType(Container)).dx, 0.0); expect(tester.getBottomRight(find.byType(Container)).dx, 100.0); }); testWidgets('Shrink wraps in finite space', (WidgetTester tester) async { final GlobalKey alignKey = GlobalKey(); await tester.pumpWidget( SingleChildScrollView( child: Align( key: alignKey, child: Container( width: 10.0, height: 10.0, ), alignment: const Alignment(0.0, 0.0), ), ), ); final Size size = alignKey.currentContext.size; expect(size.width, equals(800.0)); expect(size.height, equals(10.0)); }); }