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testing to/from Array methods

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This commit is contained in:
Yotam Mann 2016-08-15 10:22:50 -04:00
parent 2569bfef8b
commit 1270727098
1 changed files with 69 additions and 0 deletions
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69
test/core/Buffer.js
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@ -29,6 +29,22 @@ define(["Test", "Tone/core/Buffer"], function (Test, Buffer) {
});
});
it("can get the number of channels", function(done){
var buffer = new Buffer(testFile, function(){
expect(buffer.numberOfChannels).to.be.equal(1);
buffer.dispose();
done();
});
});
it("can get the length of the buffer", function(done){
var buffer = new Buffer(testFile, function(){
expect(buffer.length).to.be.equal(132301);
buffer.dispose();
done();
});
});
it("the static on('load') method is invoked", function(done){
var buffer = new Buffer(testFile);
Buffer.on("load", function(){
@ -123,5 +139,58 @@ define(["Test", "Tone/core/Buffer"], function (Test, Buffer) {
done();
});
});
it("can convert from an array", function(){
var buffer = new Buffer();
var arr = new Float32Array(0.5 * buffer.context.sampleRate);
arr[0] = 0.5;
buffer.fromArray(arr);
expect(buffer.duration).to.equal(0.5);
expect(buffer.numberOfChannels).to.equal(1);
//test the first sample of the first channel to see if it's the same
expect(buffer.get().getChannelData(0)[0]).to.equal(0.5);
buffer.dispose();
});
it("can convert from a multidimentional array", function(){
var buffer = new Buffer();
var arr = [new Float32Array(0.5 * buffer.context.sampleRate), new Float32Array(0.5 * buffer.context.sampleRate)];
arr[0][0] = 0.5;
buffer.fromArray(arr);
expect(buffer.duration).to.equal(0.5);
expect(buffer.numberOfChannels).to.equal(2);
expect(buffer.get().getChannelData(0)[0]).to.equal(0.5);
buffer.dispose();
});
it("can convert to and from an array", function(){
var buffer = new Buffer();
var arr = [new Float32Array(0.5 * buffer.context.sampleRate), new Float32Array(0.5 * buffer.context.sampleRate)];
arr[0][0] = 0.5;
buffer.fromArray(arr);
expect(buffer.get().getChannelData(0)[0]).to.equal(0.5);
expect(buffer.toArray()[0][0]).to.equal(0.5);
//with a selected channel
expect(buffer.toArray(0)[0]).to.equal(0.5);
buffer.dispose();
});
it("can slice a portion of the array", function(done){
var buffer = new Buffer(testFile, function(){
//original duration
expect(buffer.duration).to.be.closeTo(3, 0.01);
var sliced1 = buffer.slice(0, 1);
//does not modify the original
expect(buffer.duration).to.be.closeTo(3, 0.01);
expect(sliced1.duration).to.be.closeTo(1, 0.01);
var sliced2 = sliced1.slice(0.5);
expect(sliced2.duration).to.be.closeTo(0.5, 0.01);
buffer.dispose();
sliced1.dispose();
sliced2.dispose();
done();
});
});
});
});