// 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'; Shader createShader(Rect bounds) { return const LinearGradient( begin: Alignment.topCenter, end: Alignment.bottomCenter, colors: <Color>[Color(0x00FFFFFF), Color(0xFFFFFFFF)], stops: <double>[0.1, 0.35], ).createShader(bounds); } void main() { testWidgets('Can be constructed', (WidgetTester tester) async { const Widget child = SizedBox(width: 100.0, height: 100.0); await tester.pumpWidget(const ShaderMask(shaderCallback: createShader, child: child)); }); testWidgets('Bounds rect includes offset', (WidgetTester tester) async { late Rect shaderBounds; Shader recordShaderBounds(Rect bounds) { shaderBounds = bounds; return createShader(bounds); } final Widget widget = Align( child: SizedBox( width: 400.0, height: 400.0, child: ShaderMask( shaderCallback: recordShaderBounds, child: const SizedBox(width: 100.0, height: 100.0), ), ), ); await tester.pumpWidget(widget); // The shader bounds rectangle should reflect the position of the centered SizedBox. expect(shaderBounds, equals(const Rect.fromLTWH(0.0, 0.0, 400.0, 400.0))); }); testWidgets('Bounds rect includes offset visual inspection', (WidgetTester tester) async { final Widget widgetBottomRight = Container( width: 400, height: 400, color: const Color(0xFFFFFFFF), child: RepaintBoundary( child: Align( alignment: Alignment.bottomRight, child: ShaderMask( shaderCallback: (Rect bounds) => const RadialGradient( radius: 0.05, colors: <Color>[Color(0xFFFF0000), Color(0xFF00FF00)], tileMode: TileMode.mirror, ).createShader(bounds), child: Container( width: 100, height: 100, color: const Color(0xFFFFFFFF), ), ), ), ), ); await tester.pumpWidget(widgetBottomRight); await expectLater( find.byType(RepaintBoundary), matchesGoldenFile('shader_mask.bounds.matches_bottom_right.png'), ); final Widget widgetTopLeft = Container( width: 400, height: 400, color: const Color(0xFFFFFFFF), child: RepaintBoundary( child: Align( alignment: Alignment.topLeft, child: ShaderMask( shaderCallback: (Rect bounds) => const RadialGradient( radius: 0.05, colors: <Color>[Color(0xFFFF0000), Color(0xFF00FF00)], tileMode: TileMode.mirror, ).createShader(bounds), child: Container( width: 100, height: 100, color: const Color(0xFFFFFFFF), ), ), ), ), ); await tester.pumpWidget(widgetTopLeft); await expectLater( find.byType(RepaintBoundary), matchesGoldenFile('shader_mask.bounds.matches_top_left.png'), ); }); }