scratchfoundation/scratch-audio
1
0
Fork 0
mirror of https://github.com/scratchfoundation/scratch-audio.git synced 2024-12-22 05:53:43 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

add a play while playing test

Browse source
This commit is contained in:
Corey Frang 2018-06-19 15:09:03 -04:00 committed by Michael "Z" Goddard
parent 18cb9787ae
commit 8110885a62
No known key found for this signature in database
GPG key ID: 762CD40DD5349872
1 changed files with 58 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

63
test/SoundPlayer.js
View file

@ -1,4 +1,4 @@
/* global Uint8Array */
/* global Uint8Array Promise */
const tap = require('tap');
const {AudioContext} = require('web-audio-test-api');
@ -11,11 +11,19 @@ tap.test('SoundPlayer', suite => {
let audioEngine;
let soundPlayer;
const help = {
get engineInputs () {
return audioEngine.inputNode.toJSON().inputs;
}
};
suite.beforeEach(async () => {
audioContext = new AudioContext();
audioEngine = new AudioEngine(audioContext);
audioEngine.DECODE_AUDIO_DATA_RESULT = audioContext.createBuffer(2, 1024, 44100);
const data = new Uint8Array(1024);
// sound will be 0.1 seconds long
audioContext.DECODE_AUDIO_DATA_RESULT = audioContext.createBuffer(2, 4410, 44100);
audioContext.DECODE_AUDIO_DATA_FAILED = false;
const data = new Uint8Array(44100);
soundPlayer = await audioEngine.decodeSoundPlayer({data});
});
@ -27,14 +35,14 @@ tap.test('SoundPlayer', suite => {
audioContext = null;
});
suite.plan(3);
suite.plan(4);
suite.test('play initializes and creates chain', t => {
t.plan(3);
t.equal(soundPlayer.initialized, false, 'not yet initialized');
soundPlayer.play();
t.equal(soundPlayer.initialized, true, 'now is initialized');
let buffer = audioEngine.DECODE_AUDIO_DATA_RESULT.toJSON();
let buffer = audioContext.DECODE_AUDIO_DATA_RESULT.toJSON();
t.deepEqual(soundPlayer.outputNode.toJSON(), {
buffer,
inputs: [],
@ -98,5 +106,50 @@ tap.test('SoundPlayer', suite => {
t.end();
});
suite.test('play while playing', async t => {
t.plan(14);
const log = [];
soundPlayer.play();
soundPlayer.finished().then(() => log.push('play 1 finished'));
soundPlayer.connect(audioEngine);
audioContext.$processTo(0.005);
t.equal(soundPlayer.outputNode.$state, 'PLAYING');
const oldPlayerNode = soundPlayer.outputNode;
soundPlayer.play();
soundPlayer.finished().then(() => log.push('play 2 finished'));
// wait for a micro-task loop to fire our previous events
await Promise.resolve();
t.equal(log[0], 'play 1 finished');
t.notEqual(soundPlayer.outputNode, oldPlayerNode, 'created new player node');
t.equal(help.engineInputs.length, 2, 'there should be 2 players connected');
t.equal(oldPlayerNode.$state, 'PLAYING');
t.equal(soundPlayer.outputNode.$state, 'PLAYING');
t.equal(help.engineInputs[0].gain.value, 1, 'old sound connectect to gain node with volume 1');
audioContext.$processTo(audioContext.currentTime + 0.001);
t.notEqual(help.engineInputs[0].gain.value, 1,
'old sound connected to gain node which will fade');
audioContext.$processTo(audioContext.currentTime + audioEngine.DECAY_TIME + 0.001);
t.equal(soundPlayer.outputNode.$state, 'PLAYING');
t.equal(oldPlayerNode.$state, 'FINISHED');
t.equal(help.engineInputs[0].gain.value, 0, 'faded old sound to 0');
t.equal(log.length, 1);
audioContext.$processTo(audioContext.currentTime + 0.2);
await Promise.resolve();
t.equal(log[1], 'play 2 finished');
t.equal(log.length, 2);
t.end();
});
suite.end();
});