Tone.js/test/source/Source.js
2017-02-20 14:06:44 -05:00

346 lines
No EOL
9.7 KiB
JavaScript

define(["Test", "Tone/source/Source", "Tone/core/Transport", "helper/Offline", "Tone/core/Tone"],
function (Test, Source, Transport, Offline, Tone) {
describe("Source", function(){
it("can be created and disposed", function(){
var source = new Source();
source.dispose();
Test.wasDisposed(source);
});
it("can be started and stopped", function(){
var source = new Source();
source.start(0);
source.stop(1);
source.dispose();
});
it("can be constructed with an options object", function(){
var source = new Source({
"volume" : -20,
});
expect(source.volume.value).to.be.closeTo(-20, 0.1);
source.dispose();
});
it("can be muted in the constructor options", function(){
var source = new Source({
"mute" : true
});
expect(source.mute).to.be.true;
source.dispose();
});
it("can set the volume", function(){
var source = new Source();
source.volume.value = -8;
expect(source.volume.value).to.be.closeTo(-8, 0.1);
source.dispose();
});
it("can mute and unmute the source", function(){
var source = new Source();
source.volume.value = -8;
source.mute = true;
expect(source.mute).to.be.true;
expect(source.volume.value).to.equal(-Infinity);
source.mute = false;
//returns the volume to what it was
expect(source.volume.value).to.be.closeTo(-8, 0.1);
source.dispose();
});
it("can get and set values with an object", function(){
var source = new Source();
source.set("volume", -10);
expect(source.get().volume).to.be.closeTo(-10, 0.1);
source.dispose();
});
it("is initally stopped", function(){
var source = new Source();
expect(source.state).to.equal("stopped");
source.dispose();
});
it("cannot be scheduled to stop/start twice in a row", function(){
var source = new Source();
source.start(0).start(1);
source.stop(2).stop(3);
source.dispose();
});
it("has an output", function(){
var source = new Source();
source.connect(Test);
source.dispose();
});
it("can be scheduled with multiple starts/stops", function(){
var source = new Source();
source.start(0).stop(0.5).start(0.75).stop(1).start(1.25).stop(1.5);
expect(source._state.getValueAtTime(0)).to.equal("started");
expect(source._state.getValueAtTime(0.5)).to.equal("stopped");
expect(source._state.getValueAtTime(0.8)).to.equal("started");
expect(source._state.getValueAtTime(1)).to.equal("stopped");
expect(source._state.getValueAtTime(1.25)).to.equal("started");
expect(source._state.getValueAtTime(1.6)).to.equal("stopped");
source.dispose();
});
it ("correctly returns the scheduled play state", function(){
return Offline(function(){
var source = new Source();
expect(source.state).to.equal("stopped");
source.start(0).stop(0.5);
return function(time){
if (time >= 0 && time < 0.5){
expect(source.state).to.equal("started");
} else if (time > 0.5){
expect(source.state).to.equal("stopped");
}
};
}, 0.6);
});
context("sync", function(){
it ("can sync its start to the Transport", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0);
expect(source.state).to.equal("stopped");
Transport.start(Tone.now());
expect(source.state).to.equal("started");
source.dispose();
Transport.stop();
});
});
it ("can unsync after it was synced", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0);
source.unsync();
Transport.start();
expect(source.state).to.equal("stopped");
});
});
it ("can sync its stop to the Transport", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0);
expect(source.state).to.equal("stopped");
Transport.start(0).stop(0.4);
expect(source.state).to.equal("started");
return function(time){
if (time > 0.4){
expect(source.state).to.equal("stopped");
}
};
}, 0.5);
});
it ("can schedule multiple starts/stops", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0.1).stop(0.2).start(0.3);
Transport.start(0).stop(0.4);
expect(source.state).to.equal("stopped");
return function(time){
if (time > 0.1 && time < 0.19){
expect(source.state).to.equal("started");
} else if (time > 0.2 && time < 0.29){
expect(source.state).to.equal("stopped");
} else if (time > 0.3 && time < 0.39){
expect(source.state).to.equal("started");
} else if (time > 0.4){
expect(source.state).to.equal("stopped");
}
};
}, 0.6);
});
it ("has correct offset when the transport is started with an offset", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0.3).stop(0.4);
Transport.start(0, 0.1);
expect(source.state).to.equal("stopped");
return function(sample, time){
if (time > 0.21 && time < 0.29){
expect(source.state).to.equal("started");
} else if (time > 0.3){
expect(source.state).to.equal("stopped");
}
};
}, 0.5);
});
it ("can start with an offset after the start time of the source", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0);
Transport.start(0, 0.1);
expect(source.state).to.equal("started");
source.dispose();
}, 0.1);
});
it ("can sync its start to the Transport after a delay", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0.3);
Transport.start(0).stop(0.4);
expect(source.state).to.equal("stopped");
return function(time){
if (time > 0.3 && time < 0.39){
expect(source.state).to.equal("started");
} else if (time > 0.4){
expect(source.state).to.equal("stopped");
}
};
}, 0.6);
});
it ("correct state when the Transport position is changed", function(){
return Offline(function(Transport){
var source = new Source();
source.sync().start(0.3).stop(0.4);
Transport.start(0).stop(0.4);
expect(source.state).to.equal("stopped");
Transport.seconds = 0.305;
expect(source.state).to.equal("started");
Transport.seconds = 0.405;
expect(source.state).to.equal("stopped");
}, 0.1);
});
it ("gives the correct offset on time on start/stop events", function(){
return Offline(function(Transport){
var source = new Source();
source._start = function(time, offset){
expect(time).to.be.closeTo(0.4, 0.05);
expect(offset).to.be.closeTo(0.1, 0.05);
};
source._stop = function(time){
expect(time).to.be.closeTo(0.5, 0.05);
};
source.sync().start(0.2, 0.1).stop(0.3);
Transport.start(0.2);
}, 0.7);
});
it ("gives the correct offset on time on start/stop events invoked with an Transport offset", function(){
return Offline(function(Transport){
var source = new Source();
source._start = function(time, offset){
expect(time).to.be.closeTo(0.3, 0.05);
expect(offset).to.be.closeTo(0.1, 0.05);
};
source._stop = function(time){
expect(time).to.be.closeTo(0.4, 0.05);
};
source.sync().start(0.2, 0.1).stop(0.3);
Transport.start(0.2, 0.1);
}, 0.7);
});
it ("gives the correct offset on time on start/stop events invoked with an Transport offset that's in the middle of the event", function(){
return Offline(function(Transport){
var source = new Source();
source._start = function(time, offset){
expect(time).to.be.closeTo(0.2, 0.05);
expect(offset).to.be.closeTo(0.15, 0.05);
};
source._stop = function(time){
expect(time).to.be.closeTo(0.25, 0.05);
};
source.sync().start(0.2, 0.1).stop(0.3);
Transport.start(0.2, 0.25);
}, 0.7);
});
it ("gives the correct duration when invoked with an Transport offset that's in the middle of the event", function(){
return Offline(function(){
var source = new Source();
source._start = function(time, offset, duration){
expect(time).to.be.closeTo(0, 0.05);
expect(offset).to.be.closeTo(0.2, 0.05);
expect(duration).to.be.closeTo(0.3, 0.05);
};
source._stop = function(time){
expect(time).to.be.closeTo(0.1, 0.05);
};
source.sync().start(0.2, 0.1, 0.4).stop(0.4);
Transport.start(0, 0.3);
}, 0.7);
});
it ("stops at the right time when Transport.stop is invoked before the scheduled stop", function(){
return Offline(function(Transport){
var source = new Source();
source._stop = function(time){
expect(time).to.be.closeTo(0.3, 0.05);
};
source.sync().start(0.2).stop(0.4);
Transport.start(0).stop(0.3);
}, 0.7);
});
it ("invokes the right methods and offsets when the transport is seeked", function(){
var invoked = false;
return Offline(function(Transport){
var source = new Source();
var seeked = false;
source._start = function(time, offset){
if(seeked){
invoked = true;
expect(time).to.be.closeTo(0.1, 0.05);
expect(offset).to.be.closeTo(0.15, 0.05);
} else {
expect(time).to.be.closeTo(0, 0.05);
expect(offset).to.be.closeTo(0.1, 0.05);
}
};
source._stop = function(time){
//invokes the stop and restarts it
expect(time).to.be.closeTo(0.1, 0.05);
};
source.sync().start(0.2);
Transport.start(0, 0.3);
return Test.atTime(0.1, function(){
seeked = true;
Transport.seconds = 0.35;
});
}, 0.7).then(function(){
expect(invoked).to.be.true;
});
});
});
});
});