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Tone.js/test/core/Clock.js
Yotam Mann 15229d7c7e linting
2017-12-30 11:26:29 -05:00

514 lines
15 KiB
JavaScript
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define(["Test", "Tone/core/Clock", "helper/Offline", "helper/Supports"],
function (Test, Clock, Offline, Supports) {
describe("Clock", function(){
it("can be created and disposed", function(){
var clock = new Clock();
clock.dispose();
Test.wasDisposed(clock);
});
context("Get/Set values", function(){
it("can get and set the frequency", function(){
var clock = new Clock(function(){}, 2);
expect(clock.frequency.value).to.equal(2);
clock.frequency.value = 0.2;
expect(clock.frequency.value).to.be.closeTo(0.2, 0.001);
clock.dispose();
});
it("invokes the callback when started", function(done){
var clock = new Clock(function(){
clock.dispose();
done();
}, 10).start();
});
it("can be constructed with an options object", function(done){
var clock = new Clock({
"callback" : function(){
clock.dispose();
done();
},
"frequency" : 8
}).start();
expect(clock.frequency.value).to.equal(8);
});
it("can get and set it's values with the set/get", function(){
var clock = new Clock();
clock.set({
"frequency" : 2
});
var gotValues = clock.get();
expect(gotValues.frequency).to.equal(2);
clock.dispose();
});
});
context("State", function(){
it("correctly returns the scheduled play state", function(){
return Offline(function(){
var clock = new Clock();
expect(clock.state).to.equal("stopped");
clock.start(0).stop(0.2);
expect(clock.state).to.equal("started");
return function(sample, time){
Test.whenBetween(time, 0, 0.2, function(){
expect(clock.state).to.equal("started");
});
Test.whenBetween(time, 0.2, Infinity, function(){
expect(clock.state).to.equal("stopped");
});
};
}, 0.3);
});
it("can start, pause, and stop", function(){
return Offline(function(){
var clock = new Clock();
expect(clock.state).to.equal("stopped");
clock.start(0).pause(0.2).stop(0.4);
expect(clock.state).to.equal("started");
return function(sample, time){
Test.whenBetween(time, 0, 0.2, function(){
expect(clock.state).to.equal("started");
});
Test.whenBetween(time, 0.2, 0.4, function(){
expect(clock.state).to.equal("paused");
});
Test.whenBetween(time, 0.4, Infinity, function(){
expect(clock.state).to.equal("stopped");
});
};
}, 0.5);
});
it("can schedule multiple start and stops", function(){
return Offline(function(){
var clock = new Clock();
expect(clock.state).to.equal("stopped");
clock.start(0).pause(0.1).stop(0.2).start(0.3).stop(0.4);
expect(clock.state).to.equal("started");
return function(sample, time){
Test.whenBetween(time, 0.1, 0.2, function(){
expect(clock.state).to.equal("paused");
expect(clock.ticks).to.be.greaterThan(0);
});
Test.whenBetween(time, 0.2, 0.3, function(){
expect(clock.state).to.equal("stopped");
expect(clock.ticks).to.equal(0);
});
Test.whenBetween(time, 0.3, 0.4, function(){
expect(clock.state).to.equal("started");
expect(clock.ticks).to.be.greaterThan(0);
});
};
}, 0.5);
});
});
context("Scheduling", function(){
it("passes a time to the callback", function(done){
var clock = new Clock(function(time){
expect(time).to.be.a.number;
clock.dispose();
done();
}, 10).start();
});
if (Supports.ONLINE_TESTING){
it("invokes the callback with a time great than now", function(done){
var clock = new Clock(function(time){
clock.dispose();
expect(time).to.be.greaterThan(now);
done();
}, 10);
var now = clock.now();
var startTime = now + 0.1;
clock.start(startTime);
});
it("invokes the first callback at the given start time", function(done){
var clock = new Clock(function(time){
clock.dispose();
expect(time).to.be.closeTo(startTime, 0.01);
done();
}, 10);
var startTime = clock.now() + 0.1;
clock.start(startTime);
});
}
it("can be scheduled to stop in the future", function(){
var invokations = 0;
return Offline(function(){
new Clock(function(){
invokations++;
}, 2).start(0);
}, 0.4).then(function(){
expect(invokations).to.equal(1);
});
});
it("invokes the right number of callbacks given the duration", function(){
var invokations = 0;
return Offline(function(){
new Clock(function(){
invokations++;
}, 10).start(0).stop(0.45);
}, 0.6).then(function(){
expect(invokations).to.equal(5);
});
});
it("can schedule the frequency of the clock", function(){
var invokations = 0;
return Offline(function(){
var clock = new Clock(function(time){
invokations++;
}, 2);
clock.start(0).stop(1.01);
clock.frequency.setValueAtTime(4, 0.5);
}, 2).then(function(){
expect(invokations).to.equal(4);
});
});
});
context("Seconds", function(){
it("can set the current seconds", function(){
return Offline(function(){
var clock = new Clock(function(){}, 10);
expect(clock.seconds).to.equal(0);
clock.seconds = 3;
expect(clock.seconds).to.be.closeTo(3, 0.01);
clock.dispose();
});
});
it("can get the seconds", function(){
return Offline(function(){
var clock = new Clock(function(){}, 10);
expect(clock.seconds).to.equal(0);
clock.start(0.05);
return function(time){
if (time > 0.05){
expect(clock.seconds).to.be.closeTo(time - 0.05, 0.01);
}
};
}, 0.1);
});
it("can get the seconds during a bpm ramp", function(){
return Offline(function(){
var clock = new Clock(function(){}, 10);
expect(clock.seconds).to.equal(0);
clock.start(0.05);
clock.frequency.linearRampTo(60, 0.5, 0.5);
return function(time){
if (time > 0.05){
expect(clock.seconds).to.be.closeTo(time - 0.05, 0.01);
}
};
}, 0.7);
});
it("can set seconds during a bpm ramp", function(){
return Offline(function(){
var clock = new Clock(function(){}, 10);
expect(clock.seconds).to.equal(0);
clock.start(0.05);
clock.frequency.linearRampTo(60, 0.5, 0.5);
var changeSeconds = Test.atTime(0.4, function(){
clock.seconds = 0;
});
return function(time){
changeSeconds(time);
if (time > 0.05 && time < 0.4){
expect(clock.seconds).to.be.closeTo(time - 0.05, 0.01);
} else if (time > 0.4){
expect(clock.seconds).to.be.closeTo(time - 0.4, 0.01);
}
};
}, 0.7);
});
});
context("Ticks", function(){
it("has 0 ticks when first created", function(){
var clock = new Clock();
expect(clock.ticks).to.equal(0);
clock.dispose();
});
it("increments 1 tick per callback", function(){
var ticks = 0;
var clock;
return Offline(function(){
clock = new Clock(function(){
ticks++;
}, 0.05).start();
}, 0.6).then(function(){
expect(ticks).to.equal(clock.ticks);
});
});
it("resets ticks on stop", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20).start(0).stop(0.1);
return function(time){
Test.whenBetween(time, 0.01, 0.09, function(){
expect(clock.ticks).to.be.greaterThan(0);
});
Test.whenBetween(time, 0.1, Infinity, function(){
expect(clock.ticks).to.equal(0);
});
};
}, 0.2);
});
it("does not reset ticks on pause but stops incrementing", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20).start(0).pause(0.1);
var pausedTicks = 0;
return function(time){
Test.whenBetween(time, 0.01, 0.1, function(){
expect(clock.ticks).to.be.greaterThan(0);
pausedTicks = clock.ticks;
});
Test.whenBetween(time, 0.1, Infinity, function(){
expect(clock.ticks).to.equal(pausedTicks);
});
};
}, 0.2);
});
it("starts incrementing where it left off after pause", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20).start(0).pause(0.1).start(0.2);
var pausedTicks = 0;
var tested = false;
return function(time){
Test.whenBetween(time, 0.01, 0.1, function(){
expect(clock.ticks).to.be.greaterThan(0);
pausedTicks = clock.ticks;
});
Test.whenBetween(time, 0.1, 0.19, function(){
expect(clock.ticks).to.equal(pausedTicks);
});
Test.whenBetween(time, 0.21, Infinity, function(){
if (!tested){
tested = true;
expect(clock.ticks).to.equal(pausedTicks + 1);
}
});
};
}, 0.3);
});
it("can start with a tick offset", function(){
return Offline(function(){
var tested = false;
var clock = new Clock(function(){
if (!tested){
tested = true;
expect(clock.ticks).to.equal(4);
}
}, 10);
expect(clock.ticks).to.equal(0);
clock.start(0, 4);
});
});
});
context("Events", function(){
it("triggers the start event on start", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
var startTime = 0.3;
clock.on("start", function(time, offset){
expect(time).to.be.closeTo(startTime, 0.05);
expect(offset).to.equal(0);
});
clock.start(startTime);
}, 0.4);
});
it("triggers the start event with an offset", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
var startTime = 0.3;
clock.on("start", function(time, offset){
expect(time).to.be.closeTo(startTime, 0.05);
expect(offset).to.equal(2);
});
clock.start(startTime, 2);
}, 0.4);
});
it("triggers stop event", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
var stopTime = 0.3;
clock.on("stop", function(time){
expect(time).to.be.closeTo(stopTime, 0.05);
});
clock.start().stop(stopTime);
});
});
it("triggers pause stop event", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.on("pause", function(time){
expect(time).to.be.closeTo(0.1, 0.05);
}).on("stop", function(time){
expect(time).to.be.closeTo(0.2, 0.05);
});
clock.start().pause(0.1).stop(0.2);
});
});
});
context("[get,set]TicksAtTime", function(){
it("always reports 0 if not started", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
expect(clock.getTicksAtTime(0)).to.equal(0);
expect(clock.getTicksAtTime(1)).to.equal(0);
expect(clock.getTicksAtTime(2)).to.equal(0);
clock.dispose();
});
});
it("can get ticks in the future", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(1);
expect(clock.getTicksAtTime(1)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(1.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(20, 0.01);
clock.dispose();
});
});
it("pauses on last ticks", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(0).pause(1);
expect(clock.getTicksAtTime(0.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(1)).to.be.closeTo(20, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(20, 0.01);
expect(clock.getTicksAtTime(3)).to.be.closeTo(20, 0.01);
clock.dispose();
});
});
it("resumes from paused position", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(0).pause(1).start(2);
expect(clock.getTicksAtTime(0.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(1)).to.be.closeTo(20, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(20, 0.01);
expect(clock.getTicksAtTime(3)).to.be.closeTo(40, 0.01);
expect(clock.getTicksAtTime(3.5)).to.be.closeTo(50, 0.01);
clock.dispose();
});
});
it("can set a tick value at the given time", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(0);
clock.setTicksAtTime(0, 1);
clock.setTicksAtTime(0, 2);
expect(clock.getTicksAtTime(0)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(0.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(1)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(1.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(2.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(3)).to.be.closeTo(20, 0.01);
clock.dispose();
});
});
it("can get a tick position while the frequency is scheduled with setValueAtTime", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(0);
clock.frequency.setValueAtTime(2, 1);
clock.setTicksAtTime(0, 1);
clock.setTicksAtTime(0, 2);
expect(clock.getTicksAtTime(0)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(0.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(1)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(1.5)).to.be.closeTo(1, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(2.5)).to.be.closeTo(1, 0.01);
expect(clock.getTicksAtTime(3)).to.be.closeTo(2, 0.01);
clock.dispose();
});
});
it("can get a tick position while the frequency is scheduled with linearRampTo", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(0);
clock.frequency.linearRampTo(2, 1, 1);
clock.setTicksAtTime(0, 1);
clock.setTicksAtTime(10, 2);
expect(clock.getTicksAtTime(0)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(0.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(1)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(1.5)).to.be.closeTo(7.75, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(2.5)).to.be.closeTo(11, 0.01);
expect(clock.getTicksAtTime(3)).to.be.closeTo(12, 0.01);
clock.dispose();
});
});
it("can get a tick position while the frequency is scheduled with exponentialRampTo", function(){
return Offline(function(){
var clock = new Clock(function(){}, 20);
clock.start(0);
clock.frequency.exponentialRampTo(2, 1, 1);
clock.setTicksAtTime(0, 1);
clock.setTicksAtTime(10, 2);
expect(clock.getTicksAtTime(0)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(0.5)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(1)).to.be.closeTo(0, 0.01);
expect(clock.getTicksAtTime(1.5)).to.be.closeTo(5.96, 0.01);
expect(clock.getTicksAtTime(2)).to.be.closeTo(10, 0.01);
expect(clock.getTicksAtTime(2.5)).to.be.closeTo(11, 0.01);
expect(clock.getTicksAtTime(3)).to.be.closeTo(12, 0.01);
clock.dispose();
});
});
});
});
});
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