mirror of
https://github.com/Tonejs/Tone.js
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34 lines
881 B
JavaScript
34 lines
881 B
JavaScript
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define(["Test", "Tone/core/OfflineContext"],
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function (Test, OfflineContext) {
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context("OfflineContext", function(){
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it("can be created", function(){
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new OfflineContext(1, 0.1, 44100);
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});
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it ("render returns a promise", function(){
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var ctx = new OfflineContext(1, 0.1, 44100);
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var render = ctx.render();
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expect(render).to.be.instanceOf(Promise);
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return render;
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});
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it ("can render audio", function(){
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var ctx = new OfflineContext(1, 0.2, 44100);
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var osc = ctx.createOscillator();
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osc.connect(ctx.destination);
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osc.start(0.1);
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return ctx.render().then(function(buffer){
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expect(buffer).to.be.instanceOf(AudioBuffer);
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var array = buffer.getChannelData(0);
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for (var i = 0; i < array.length; i++){
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if (array[i] !== 0){
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expect(i/array.length).to.be.closeTo(0.5, 0.01);
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break;
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}
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}
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});
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});
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});
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});
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