| // 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. |
| |
| // This file is run as part of a reduced test set in CI on Mac and Windows |
| // machines. |
| @Tags(<String>['reduced-test-set']) |
| library; |
| |
| import 'package:flutter/widgets.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| // Here and below, see: https://github.com/dart-lang/sdk/issues/26980 |
| const FlutterLogoDecoration start = FlutterLogoDecoration( |
| textColor: Color(0xFFD4F144), |
| style: FlutterLogoStyle.stacked, |
| margin: EdgeInsets.all(10.0), |
| ); |
| |
| const FlutterLogoDecoration end = FlutterLogoDecoration( |
| textColor: Color(0xFF81D4FA), |
| style: FlutterLogoStyle.stacked, |
| margin: EdgeInsets.all(10.0), |
| ); |
| |
| test('FlutterLogoDecoration lerp from null to null is null', () { |
| final FlutterLogoDecoration? logo = FlutterLogoDecoration.lerp(null, null, 0.5); |
| expect(logo, isNull); |
| }); |
| |
| test('FlutterLogoDecoration.lerp identical a,b', () { |
| expect(FlutterLogoDecoration.lerp(null, null, 0), null); |
| const FlutterLogoDecoration logo = FlutterLogoDecoration(); |
| expect(identical(FlutterLogoDecoration.lerp(logo, logo, 0.5), logo), true); |
| }); |
| |
| test('FlutterLogoDecoration lerp from non-null to null lerps margin', () { |
| final FlutterLogoDecoration logo = FlutterLogoDecoration.lerp(start, null, 0.4)!; |
| expect(logo.textColor, start.textColor); |
| expect(logo.style, start.style); |
| expect(logo.margin, start.margin * 0.4); |
| }); |
| |
| test('FlutterLogoDecoration lerp from null to non-null lerps margin', () { |
| final FlutterLogoDecoration logo = FlutterLogoDecoration.lerp(null, end, 0.6)!; |
| expect(logo.textColor, end.textColor); |
| expect(logo.style, end.style); |
| expect(logo.margin, end.margin * 0.6); |
| }); |
| |
| test('FlutterLogoDecoration lerps colors and margins', () { |
| final FlutterLogoDecoration logo = FlutterLogoDecoration.lerp(start, end, 0.5)!; |
| expect(logo.textColor, Color.lerp(start.textColor, end.textColor, 0.5)); |
| expect(logo.margin, EdgeInsets.lerp(start.margin, end.margin, 0.5)); |
| }); |
| |
| test('FlutterLogoDecoration.lerpFrom and FlutterLogoDecoration.lerpTo', () { |
| expect(Decoration.lerp(start, const BoxDecoration(), 0.0), start); |
| expect(Decoration.lerp(start, const BoxDecoration(), 1.0), const BoxDecoration()); |
| expect(Decoration.lerp(const BoxDecoration(), end, 0.0), const BoxDecoration()); |
| expect(Decoration.lerp(const BoxDecoration(), end, 1.0), end); |
| }); |
| |
| test('FlutterLogoDecoration lerp changes styles at 0.5', () { |
| FlutterLogoDecoration logo = FlutterLogoDecoration.lerp(start, end, 0.4)!; |
| expect(logo.style, start.style); |
| |
| logo = FlutterLogoDecoration.lerp(start, end, 0.5)!; |
| expect(logo.style, end.style); |
| }); |
| |
| test('FlutterLogoDecoration toString', () { |
| expect( |
| start.toString(), |
| equals( |
| 'FlutterLogoDecoration(textColor: Color(0xffd4f144), style: stacked)', |
| ), |
| ); |
| expect( |
| FlutterLogoDecoration.lerp(null, end, 0.5).toString(), |
| equals( |
| 'FlutterLogoDecoration(textColor: Color(0xff81d4fa), style: stacked, transition -1.0:0.5)', |
| ), |
| ); |
| }); |
| |
| testWidgets('Flutter Logo golden test', (WidgetTester tester) async { |
| final Key logo = UniqueKey(); |
| await tester.pumpWidget(Container( |
| key: logo, |
| decoration: const FlutterLogoDecoration(), |
| )); |
| |
| await expectLater( |
| find.byKey(logo), |
| matchesGoldenFile('flutter_logo.png'), |
| ); |
| }); |
| } |