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// 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:async';
import 'dart:typed_data';
import 'dart:ui';
import 'package:litetest/litetest.dart';
void main() {
test('window.sendPlatformMessage preserves callback zone', () {
runZoned(() {
final Zone innerZone = Zone.current;
PlatformDispatcher.instance.sendPlatformMessage('test', ByteData.view(Uint8List(0).buffer), expectAsync1((ByteData? data) {
final Zone runZone = Zone.current;
expect(runZone, isNotNull);
expect(runZone, same(innerZone));
}));
});
});
test('FrameTiming.toString has the correct format', () {
final FrameTiming timing = FrameTiming(
vsyncStart: 500,
buildStart: 1000,
buildFinish: 8000,
rasterStart: 9000,
rasterFinish: 19500,
rasterFinishWallTime: 19501,
frameNumber: 23,
);
expect(timing.toString(),
'FrameTiming(buildDuration: 7.0ms, '
'rasterDuration: 10.5ms, '
'vsyncOverhead: 0.5ms, '
'totalSpan: 19.0ms, '
'layerCacheCount: 0, '
'layerCacheBytes: 0, '
'pictureCacheCount: 0, '
'pictureCacheBytes: 0, '
'frameNumber: 23)');
});
test('FrameTiming.toString with cache statistics has the correct format', () {
final FrameTiming timing = FrameTiming(
vsyncStart: 500,
buildStart: 1000,
buildFinish: 8000,
rasterStart: 9000,
rasterFinish: 19500,
rasterFinishWallTime: 19501,
layerCacheCount: 5,
layerCacheBytes: 200000,
pictureCacheCount: 3,
pictureCacheBytes: 300000,
frameNumber: 29,
);
expect(timing.toString(),
'FrameTiming(buildDuration: 7.0ms, '
'rasterDuration: 10.5ms, '
'vsyncOverhead: 0.5ms, '
'totalSpan: 19.0ms, '
'layerCacheCount: 5, '
'layerCacheBytes: 200000, '
'pictureCacheCount: 3, '
'pictureCacheBytes: 300000, '
'frameNumber: 29)');
});
test('computePlatformResolvedLocale basic', () {
final List<Locale> supportedLocales = <Locale>[
const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hans', countryCode: 'CN'),
const Locale.fromSubtags(languageCode: 'fr', countryCode: 'FR'),
const Locale.fromSubtags(languageCode: 'en', countryCode: 'US'),
const Locale.fromSubtags(languageCode: 'en'),
];
// The default implementation returns null due to lack of a real platform.
final Locale? result = PlatformDispatcher.instance.computePlatformResolvedLocale(supportedLocales);
expect(result, null);
});
test('Display is configured for the implicitView', () {
final FlutterView implicitView = PlatformDispatcher.instance.implicitView!;
final Display display = implicitView.display;
expect(display.id, 0);
expect(display.devicePixelRatio, implicitView.devicePixelRatio);
expect(display.refreshRate, 60);
expect(display.size, implicitView.physicalSize);
});
test('FlutterView.toString contains the viewId', () {
final FlutterView flutterView = PlatformDispatcher.instance.implicitView!;
expect(flutterView.viewId, 0);
expect(flutterView.toString(), 'FlutterView(id: 0)');
});
test('scaleFontSize is the identity function by default when textScaleFactor = 1', () {
expect(PlatformDispatcher.instance.scaleFontSize(0), 0.0);
expect(PlatformDispatcher.instance.scaleFontSize(1), 1.0);
expect(PlatformDispatcher.instance.scaleFontSize(2), 2.0);
expect(PlatformDispatcher.instance.scaleFontSize(3), 3.0);
expect(PlatformDispatcher.instance.scaleFontSize(3.4), 3.4);
});
}