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// 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'])
@TestOn('!chrome')
library;
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Color filter - red', (WidgetTester tester) async {
await tester.pumpWidget(
const RepaintBoundary(
child: ColorFiltered(
colorFilter: ColorFilter.mode(Colors.red, BlendMode.color),
child: Placeholder(),
),
),
);
await expectLater(
find.byType(ColorFiltered),
matchesGoldenFile('color_filter_red.png'),
);
});
testWidgets('Color filter - sepia', (WidgetTester tester) async {
const ColorFilter sepia = ColorFilter.matrix(<double>[
0.39, 0.769, 0.189, 0, 0, //
0.349, 0.686, 0.168, 0, 0, //
0.272, 0.534, 0.131, 0, 0, //
0, 0, 0, 1, 0, //
]);
await tester.pumpWidget(
RepaintBoundary(
child: ColorFiltered(
colorFilter: sepia,
child: MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(primarySwatch: Colors.blue, useMaterial3: false),
home: Scaffold(
appBar: AppBar(
title: const Text('Sepia ColorFilter Test'),
),
body: const Center(
child:Text('Hooray!'),
),
floatingActionButton: FloatingActionButton(
onPressed: () { },
tooltip: 'Increment',
child: const Icon(Icons.add),
),
),
),
),
),
);
await expectLater(
find.byType(ColorFiltered),
matchesGoldenFile('color_filter_sepia.png'),
);
});
testWidgets('Color filter - reuses its layer', (WidgetTester tester) async {
Future<void> pumpWithColor(Color color) async {
await tester.pumpWidget(
RepaintBoundary(
child: ColorFiltered(
colorFilter: ColorFilter.mode(color, BlendMode.color),
child: const Placeholder(),
),
),
);
}
await pumpWithColor(Colors.red);
final RenderObject renderObject = tester.firstRenderObject(find.byType(ColorFiltered));
final ColorFilterLayer originalLayer = renderObject.debugLayer! as ColorFilterLayer;
expect(originalLayer, isNotNull);
// Change color to force a repaint.
await pumpWithColor(Colors.green);
expect(renderObject.debugLayer, same(originalLayer));
});
}