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190 lines
7.5 KiB
Dart
190 lines
7.5 KiB
Dart
// Copyright 2016 The Chromium 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 'package:flutter_web_test/flutter_web_test.dart';
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import 'package:flutter_web/animation.dart';
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import 'package:flutter_web/scheduler.dart';
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import 'package:flutter_web/widgets.dart';
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void main() {
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testWidgets('awaiting animation controllers - using direct future',
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(WidgetTester tester) async {
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final AnimationController controller1 = AnimationController(
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duration: const Duration(milliseconds: 100),
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vsync: const TestVSync(),
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);
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final AnimationController controller2 = AnimationController(
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duration: const Duration(milliseconds: 600),
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vsync: const TestVSync(),
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);
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final AnimationController controller3 = AnimationController(
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duration: const Duration(milliseconds: 300),
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vsync: const TestVSync(),
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);
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final List<String> log = <String>[];
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Future<void> runTest() async {
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log.add('a'); // t=0
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await controller1.forward(); // starts at t=0 again
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log.add('b'); // wants to end at t=100 but missed frames until t=150
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await controller2.forward(); // starts at t=150
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log.add('c'); // wants to end at t=750 but missed frames until t=799
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await controller3.forward(); // starts at t=799
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log.add('d'); // wants to end at t=1099 but missed frames until t=1200
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}
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log.add('start');
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runTest().then((void value) {
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log.add('end');
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});
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await tester.pump(); // t=0
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expect(log, <String>['start', 'a']);
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await tester.pump(); // t=0 again
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expect(log, <String>['start', 'a']);
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await tester.pump(const Duration(milliseconds: 50)); // t=50
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expect(log, <String>['start', 'a']);
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await tester.pump(const Duration(milliseconds: 100)); // t=150
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expect(log, <String>['start', 'a', 'b']);
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await tester.pump(const Duration(milliseconds: 50)); // t=200
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expect(log, <String>['start', 'a', 'b']);
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await tester.pump(const Duration(milliseconds: 400)); // t=600
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expect(log, <String>['start', 'a', 'b']);
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await tester.pump(const Duration(milliseconds: 199)); // t=799
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expect(log, <String>['start', 'a', 'b', 'c']);
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await tester.pump(const Duration(milliseconds: 51)); // t=850
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expect(log, <String>['start', 'a', 'b', 'c']);
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await tester.pump(const Duration(milliseconds: 400)); // t=1200
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expect(log, <String>['start', 'a', 'b', 'c', 'd', 'end']);
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await tester.pump(const Duration(milliseconds: 400)); // t=1600
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expect(log, <String>['start', 'a', 'b', 'c', 'd', 'end']);
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});
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testWidgets('awaiting animation controllers - using orCancel',
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(WidgetTester tester) async {
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final AnimationController controller1 = AnimationController(
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duration: const Duration(milliseconds: 100),
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vsync: const TestVSync(),
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);
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final AnimationController controller2 = AnimationController(
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duration: const Duration(milliseconds: 600),
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vsync: const TestVSync(),
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);
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final AnimationController controller3 = AnimationController(
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duration: const Duration(milliseconds: 300),
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vsync: const TestVSync(),
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);
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final List<String> log = <String>[];
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Future<void> runTest() async {
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log.add('a'); // t=0
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await controller1.forward().orCancel; // starts at t=0 again
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log.add('b'); // wants to end at t=100 but missed frames until t=150
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await controller2.forward().orCancel; // starts at t=150
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log.add('c'); // wants to end at t=750 but missed frames until t=799
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await controller3.forward().orCancel; // starts at t=799
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log.add('d'); // wants to end at t=1099 but missed frames until t=1200
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}
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log.add('start');
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runTest().then((void value) {
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log.add('end');
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});
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await tester.pump(); // t=0
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expect(log, <String>['start', 'a']);
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await tester.pump(); // t=0 again
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expect(log, <String>['start', 'a']);
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await tester.pump(const Duration(milliseconds: 50)); // t=50
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expect(log, <String>['start', 'a']);
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await tester.pump(const Duration(milliseconds: 100)); // t=150
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expect(log, <String>['start', 'a', 'b']);
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await tester.pump(const Duration(milliseconds: 50)); // t=200
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expect(log, <String>['start', 'a', 'b']);
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await tester.pump(const Duration(milliseconds: 400)); // t=600
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expect(log, <String>['start', 'a', 'b']);
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await tester.pump(const Duration(milliseconds: 199)); // t=799
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expect(log, <String>['start', 'a', 'b', 'c']);
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await tester.pump(const Duration(milliseconds: 51)); // t=850
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expect(log, <String>['start', 'a', 'b', 'c']);
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await tester.pump(const Duration(milliseconds: 400)); // t=1200
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expect(log, <String>['start', 'a', 'b', 'c', 'd', 'end']);
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await tester.pump(const Duration(milliseconds: 400)); // t=1600
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expect(log, <String>['start', 'a', 'b', 'c', 'd', 'end']);
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});
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testWidgets('awaiting animation controllers and failing',
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(WidgetTester tester) async {
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final AnimationController controller1 = AnimationController(
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duration: const Duration(milliseconds: 100),
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vsync: const TestVSync(),
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);
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final List<String> log = <String>[];
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Future<void> runTest() async {
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try {
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log.add('start');
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await controller1.forward().orCancel;
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log.add('fail');
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} on TickerCanceled {
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log.add('caught');
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}
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}
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runTest().then((void value) {
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log.add('end');
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});
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await tester.pump(); // start ticker
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expect(log, <String>['start']);
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await tester.pump(const Duration(milliseconds: 50));
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expect(log, <String>['start']);
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controller1.dispose();
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expect(log, <String>['start']);
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await tester.idle();
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expect(log, <String>['start', 'caught', 'end']);
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});
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testWidgets('creating orCancel future later', (WidgetTester tester) async {
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final AnimationController controller1 = AnimationController(
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duration: const Duration(milliseconds: 100),
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vsync: const TestVSync(),
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);
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final TickerFuture f = controller1.forward();
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await tester.pump(); // start ticker
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await tester.pump(const Duration(milliseconds: 200)); // end ticker
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await f; // should be a no-op
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await f.orCancel; // should create a resolved future
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expect(true, isTrue); // should reach here
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});
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testWidgets('creating orCancel future later', (WidgetTester tester) async {
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final AnimationController controller1 = AnimationController(
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duration: const Duration(milliseconds: 100),
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vsync: const TestVSync(),
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);
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final TickerFuture f = controller1.forward();
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await tester.pump(); // start ticker
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controller1.stop(); // cancel ticker
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bool ok = false;
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try {
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await f.orCancel; // should create a resolved future
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} on TickerCanceled {
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ok = true;
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}
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expect(ok, isTrue); // should reach here
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});
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testWidgets('TickerFuture is a Future', (WidgetTester tester) async {
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final AnimationController controller1 = AnimationController(
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duration: const Duration(milliseconds: 100),
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vsync: const TestVSync(),
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);
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final TickerFuture f = controller1.forward();
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await tester.pump(); // start ticker
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await tester.pump(const Duration(milliseconds: 200)); // end ticker
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expect(f.asStream().single, isInstanceOf<Future<void>>());
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await f.catchError((dynamic e) {
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throw 'do not reach';
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});
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expect(await f.then<bool>((_) => true), isTrue);
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expect(f.whenComplete(() => false), isInstanceOf<Future<void>>());
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expect(f.timeout(const Duration(seconds: 5)), isInstanceOf<Future<void>>());
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});
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}
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