scratchfoundation/scratch-audio
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convert async/await to promise chain

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Corey Frang 2018-06-20 14:51:48 -04:00 committed by Michael "Z" Goddard
parent 1d5d6bfbb2
commit cdd35b5296
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GPG key ID: 762CD40DD5349872
1 changed files with 38 additions and 28 deletions
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20
test/SoundPlayer.js
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@ -108,24 +108,29 @@ tap.test('SoundPlayer', suite => {
t.end(); t.end();
}); });
suite.test('play while playing', async t => { suite.test('play while playing', t => {
t.plan(15); t.plan(15);
const log = []; const log = [];
soundPlayer.play(); soundPlayer.play();
soundPlayer.finished().then(() => log.push('play 1 finished')); soundPlayer.finished().then(() => log.push('play 1 finished'));
soundPlayer.connect(audioEngine); soundPlayer.connect(audioEngine);
let oldPlayerNode;
await Promise.resolve(); return Promise.resolve()
.then(() => {
audioContext.$processTo(0.005); audioContext.$processTo(0.005);
t.equal(soundPlayer.outputNode.$state, 'PLAYING'); t.equal(soundPlayer.outputNode.$state, 'PLAYING');
const oldPlayerNode = soundPlayer.outputNode; oldPlayerNode = soundPlayer.outputNode;
soundPlayer.play(); soundPlayer.play();
soundPlayer.finished().then(() => log.push('play 2 finished')); soundPlayer.finished().then(() => log.push('play 2 finished'));
// wait for a micro-task loop to fire our previous events // wait for a micro-task loop to fire our previous events
await Promise.resolve(); return Promise.resolve();
})
.then(() => {
t.equal(log[0], 'play 1 finished'); t.equal(log[0], 'play 1 finished');
t.notEqual(soundPlayer.outputNode, oldPlayerNode, 'created new player node'); t.notEqual(soundPlayer.outputNode, oldPlayerNode, 'created new player node');
@ -147,13 +152,18 @@ tap.test('SoundPlayer', suite => {
t.equal(log.length, 1); t.equal(log.length, 1);
audioContext.$processTo(audioContext.currentTime + 0.2); audioContext.$processTo(audioContext.currentTime + 0.2);
await Promise.resolve(); // wait for a micro-task loop to fire our previous events
return Promise.resolve();
})
.then(() => {
t.equal(log[1], 'play 2 finished'); t.equal(log[1], 'play 2 finished');
t.equal(help.engineInputs.length, 1, 'old sound disconneted itself after done'); t.equal(help.engineInputs.length, 1, 'old sound disconneted itself after done');
t.equal(log.length, 2); t.equal(log.length, 2);
t.end(); t.end();
}); });
});
suite.end(); suite.end();
}); });