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Replace async-for with stream subscription.

This commit is contained in:
Ryan Heise 2020-11-18 01:32:32 +11:00
parent 1ca402a3f4
commit aad767449f
1 changed files with 16 additions and 7 deletions
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23
just_audio/test/just_audio_test.dart
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@ -211,7 +211,7 @@ void runTests() {
final period = Duration(seconds: 3); final period = Duration(seconds: 3);
final position1 = period; final position1 = period;
final position2 = position1 + period; final position2 = position1 + period;
double speed1 = 0.75; final speed1 = 0.75;
final speed2 = 1.5; final speed2 = 1.5;
final stepDuration = period ~/ 5; final stepDuration = period ~/ 5;
var target = stepDuration; var target = stepDuration;
@ -219,25 +219,34 @@ void runTests() {
player.play(); player.play();
final stopwatch = Stopwatch(); final stopwatch = Stopwatch();
stopwatch.start(); stopwatch.start();
await for (var position in player.positionStream) {
var completer = Completer();
StreamSubscription subscription;
subscription = player.positionStream.listen((position) {
if (position >= position1) { if (position >= position1) {
break; subscription.cancel();
completer.complete();
} else if (position >= target) { } else if (position >= target) {
expectDuration(position, stopwatch.elapsed * speed1); expectDuration(position, stopwatch.elapsed * speed1);
target += stepDuration; target += stepDuration;
} }
} });
await completer.future;
player.setSpeed(speed2); player.setSpeed(speed2);
stopwatch.reset(); stopwatch.reset();
target = position1 + target; target = position1 + target;
await for (var position in player.positionStream) { completer = Completer();
subscription = player.positionStream.listen((position) {
if (position >= position2) { if (position >= position2) {
break; subscription.cancel();
completer.complete();
} else if (position >= target) { } else if (position >= target) {
expectDuration(position, position1 + stopwatch.elapsed * speed2); expectDuration(position, position1 + stopwatch.elapsed * speed2);
target += stepDuration; target += stepDuration;
} }
} });
await completer.future;
player.dispose(); player.dispose();
}); });