blob: a9bb8a791f2ea55f15c634eb0b28a123567c3f84 [file] [log] [blame]
// Copyright 2013 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 'dart:typed_data';
import 'package:test/bootstrap/browser.dart';
import 'package:test/test.dart';
import 'package:ui/src/engine.dart';
import 'package:ui/ui.dart';
void main() {
internalBootstrapBrowserTest(() => testMain);
}
Future<void> testMain() async {
setUpAll(() async {
await webOnlyInitializePlatform();
await renderer.fontCollection.debugDownloadTestFonts();
renderer.fontCollection.registerDownloadedFonts();
});
Future<Image> createTestImageByColor(Color color) async {
final EnginePictureRecorder recorder = EnginePictureRecorder();
final RecordingCanvas canvas =
recorder.beginRecording(const Rect.fromLTRB(0, 0, 2, 2));
canvas.drawColor(color, BlendMode.srcOver);
final Picture testPicture = recorder.endRecording();
final Image testImage = await testPicture.toImage(2, 2);
return testImage;
}
test('Picture.toImage().toByteData()', () async {
final Image testImage = await createTestImageByColor(const Color(0xFFCCDD00));
final ByteData bytes =
(await testImage.toByteData())!;
expect(
bytes.buffer.asUint32List(),
<int>[0xFF00DDCC, 0xFF00DDCC, 0xFF00DDCC, 0xFF00DDCC],
);
final ByteData pngBytes =
(await testImage.toByteData(format: ImageByteFormat.png))!;
// PNG-encoding is browser-specific, but the header is standard. We only
// test the header.
final List<int> pngHeader = <int>[137, 80, 78, 71, 13, 10, 26, 10];
expect(
pngBytes.buffer.asUint8List().sublist(0, pngHeader.length),
pngHeader,
);
});
test('Image.toByteData(format: ImageByteFormat.rawStraightRgba)', () async {
final Image testImage = await createTestImageByColor(const Color(0xAAFFFF00));
final ByteData bytes =
(await testImage.toByteData(format: ImageByteFormat.rawStraightRgba))!;
expect(
bytes.buffer.asUint32List(),
<int>[0xAA00FFFF, 0xAA00FFFF, 0xAA00FFFF, 0xAA00FFFF],
);
});
}