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e97ed36e58
Without this, developers have to override `onReportTimings` to listen for `FrameTiming`. That can potentially break previous `onReportTimings` listeners if they forget to call the old listener in their new callback. This PR replaces the similar RP in the framework: https://github.com/flutter/flutter/pull/38574 Once this PR landed, we'll have to create another framework PR to use the stream to replace `onReportTimings` usages. Once that's done, we can then propose the breaking change of removing the deprecated `onReportTimings`.
66 lines
2.4 KiB
Dart
66 lines
2.4 KiB
Dart
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import 'dart:typed_data';
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import 'dart:ui';
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import 'package:test/test.dart';
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void main() {
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test('window.sendPlatformMessage preserves callback zone', () {
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runZoned(() {
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final Zone innerZone = Zone.current;
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window.sendPlatformMessage('test', ByteData.view(Uint8List(0).buffer), expectAsync1((ByteData data) {
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final Zone runZone = Zone.current;
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expect(runZone, isNotNull);
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expect(runZone, same(innerZone));
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}));
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});
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});
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test('FrameTiming.toString has the correct format', () {
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FrameTiming timing = FrameTiming(<int>[1000, 8000, 9000, 19500]);
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expect(timing.toString(), 'FrameTiming(buildDuration: 7.0ms, rasterDuration: 10.5ms, totalSpan: 18.5ms)');
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});
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test('window.frameTimings works', () async {
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// Test a single subscription. Check that debugNeedsReportTimings is
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// properly reset after the subscription is cancelled.
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expect(window.debugNeedsReportTimings, false);
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final FrameTiming mockTiming = FrameTiming(<int>[1000, 8000, 9000, 19500]);
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final Future<FrameTiming> frameTiming = window.frameTimings.first;
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expect(window.debugNeedsReportTimings, true);
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window.debugReportTimings(<FrameTiming>[mockTiming]);
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expect(await frameTiming, equals(mockTiming));
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expect(window.debugNeedsReportTimings, false);
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// Test multiple (two) subscriptions after that debugNeedsReportTimings has
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// been reset to false by the single subscription test above.
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//
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// Subscription 1
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final Future<FrameTiming> timingFuture = window.frameTimings.first;
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//
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// Subscription 2
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final List<FrameTiming> timings = <FrameTiming>[];
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final Completer<void> completer = Completer<void>();
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int frameCount = 0;
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window.frameTimings.listen((FrameTiming t) {
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timings.add(t);
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frameCount += 1;
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if (frameCount == 2) {
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completer.complete();
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}
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});
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final FrameTiming secondMock = FrameTiming(<int>[1, 2, 3, 4]);
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window.debugReportTimings(<FrameTiming>[secondMock, secondMock]);
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final FrameTiming timing = await timingFuture;
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expect(timing != mockTiming, isTrue);
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expect(timing, equals(secondMock));
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await completer.future;
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expect(timings, hasLength(2));
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});
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}
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