| // 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/widgets.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Placeholder intrinsics', (WidgetTester tester) async { |
| await tester.pumpWidget(const Placeholder()); |
| expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMinIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMaxIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMinIntrinsicHeight(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(Placeholder)).getMaxIntrinsicHeight(double.infinity), 0.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - minHeight', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints( |
| minHeight: 20.0, |
| ), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 20.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 20.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - minWidth', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints( |
| minWidth: 20.0, |
| ), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 20.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 20.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - maxHeight', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints( |
| maxHeight: 20.0, |
| ), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - maxWidth', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints( |
| maxWidth: 20.0, |
| ), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - tight', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints.tightFor(width: 10.0, height: 30.0), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 10.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 10.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 30.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 30.0); |
| }); |
| |
| |
| testWidgets('ConstrainedBox intrinsics - minHeight - with infinite width', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints( |
| minWidth: double.infinity, |
| minHeight: 20.0, |
| ), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 20.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 20.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - minWidth - with infinite height', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints( |
| minWidth: 20.0, |
| minHeight: double.infinity, |
| ), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 20.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 20.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0); |
| }); |
| |
| testWidgets('ConstrainedBox intrinsics - infinite', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| ConstrainedBox( |
| constraints: const BoxConstraints.tightFor(width: double.infinity, height: double.infinity), |
| child: const Placeholder(), |
| ), |
| ); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicWidth(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMinIntrinsicHeight(double.infinity), 0.0); |
| expect(tester.renderObject<RenderBox>(find.byType(ConstrainedBox)).getMaxIntrinsicHeight(double.infinity), 0.0); |
| }); |
| } |