blob: 10578b36de947e390356d470c19c1c571983ac13 [file] [log] [blame]
// Copyright 2015 The Chromium 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 'dart:ui' show Shader;
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/widgets.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],
void main() {
testWidgets('Can be constructed', (WidgetTester tester) async {
final Widget child = Container(width: 100.0, height: 100.0);
await tester.pumpWidget(ShaderMask(child: child, shaderCallback: createShader));
}, skip: isBrowser);
testWidgets('Bounds rect includes offset', (WidgetTester tester) async {
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: Container(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(200.0, 100.0, 400.0, 400.0)));
}, skip: isBrowser);