blob: 4ea13962fcaa871314a39950579899b73e5173f7 [file] [log] [blame] [edit]
// Copyright 2022 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:ui';
import 'package:litetest/litetest.dart';
void main() {
test('Picture construction invokes onCreate once', () async {
int onCreateInvokedCount = 0;
Picture? createdPicture;
Picture.onCreate = (Picture picture) {
onCreateInvokedCount++;
createdPicture = picture;
};
final Picture picture1 = _createPicture();
expect(onCreateInvokedCount, 1);
expect(createdPicture, picture1);
final Picture picture2 = _createPicture();
expect(onCreateInvokedCount, 2);
expect(createdPicture, picture2);
Picture.onCreate = null;
});
test('approximateBytesUsed is available for onCreate', () async {
int pictureSize = -1;
Picture.onCreate = (Picture picture) =>
pictureSize = picture.approximateBytesUsed;
_createPicture();
expect(pictureSize >= 0, true);
Picture.onCreate = null;
});
test('dispose() invokes onDispose once', () async {
int onDisposeInvokedCount = 0;
Picture? disposedPicture;
Picture.onDispose = (Picture picture) {
onDisposeInvokedCount++;
disposedPicture = picture;
};
final Picture picture1 = _createPicture()..dispose();
expect(onDisposeInvokedCount, 1);
expect(disposedPicture, picture1);
final Picture picture2 = _createPicture()..dispose();
expect(onDisposeInvokedCount, 2);
expect(disposedPicture, picture2);
Picture.onDispose = null;
});
}
Picture _createPicture() {
final PictureRecorder recorder = PictureRecorder();
final Canvas canvas = Canvas(recorder);
const Rect rect = Rect.fromLTWH(0.0, 0.0, 100.0, 100.0);
canvas.clipRect(rect);
return recorder.endRecording();
}