(Gsoc'21)➕Added tests for lnoise,pulse.js

Author: satyasaibhushan

test/tests.js

@@ -4,7 +4,7 @@ import('./tests/p5.PeakDetect.js');
 import('./tests/p5.OnsetDetect.js');
 import('./tests/p5.Distortion.js');
 import('./tests/p5.AudioContext.js');
-import('./tests/p5.Looper.js')
+import('./tests/p5.Looper.js');
 import('./tests/p5.Metro.js');
 import('./tests/p5.Effect.js');
 import('./tests/p5.Filter.js');
@@ -20,6 +20,8 @@ import('./tests/p5.SoundRecorder.js');
 import('./tests/p5.SoundFile.js');
 import('./tests/p5.Amplitude.js');
 import('./tests/p5.Oscillator.js');
+import('./tests/p5.Pulse.js');
+import('./tests/p5.Noise.js');
 import('./tests/p5.Panner.js');
 import('./tests/p5.Panner3d.js');
 import('./tests/p5.Listener3d.js');

test/tests/p5.Noise.js

@@ -0,0 +1,44 @@
+const expect = chai.expect;
+
+describe('p5.Noise', function () {
+  it('can be created and disposed', function () {
+    let noise = new p5.Noise();
+    expect(noise).to.not.have.property('f');
+    expect(noise).to.not.have.property('oscillator');
+    expect(noise).to.have.property('buffer');
+    expect(noise.started).to.be.false;
+    expect(noise.buffer.type).to.equal('white');
+
+    noise.dispose();
+    expect(noise.output).to.be.null;
+    expect(noise.panner).to.be.null;
+    expect(noise.buffer).to.be.null;
+    expect(noise.noise).to.be.null;
+  });
+  describe('methods', function () {
+    it('can get and set type', function (done) {
+      let noise = new p5.Noise();
+      noise.start();
+      noise.setType('brown');
+      expect(noise.getType()).to.equal('brown');
+      noise.setType();
+      expect(noise.getType()).to.equal('white');
+      setTimeout(() => {
+        expect(noise.started).to.be.true;
+        done();
+      }, 100);
+    });
+    it('can be started and stopped', function () {
+      let noise = new p5.Noise();
+      expect(noise).to.not.have.property('noise');
+      noise.start();
+      expect(noise).to.have.property('noise');
+      expect(noise.noise).to.have.property('buffer');
+      expect(noise.noise.loop).to.be.true;
+      expect(noise.started).to.be.true;
+      noise.stop();
+      expect(noise.started).to.be.false;
+    });
+    //TODO: test noise buffer generator functions
+  });
+});

test/tests/p5.Pulse.js

@@ -0,0 +1,57 @@
+const expect = chai.expect;
+
+describe('p5.Pulse', function () {
+  it('can be created without any arguments', function () {
+    let pulse = new p5.Pulse();
+    expect(pulse.w).to.be.zero;
+    expect(pulse.oscillator.type).to.equal('sawtooth');
+    expect(pulse.f).to.equal(440);
+    expect(pulse.osc2).to.have.property('connection');
+    expect(pulse.osc2).to.have.property('oscMods');
+    expect(pulse.osc2).to.have.property('oscillator');
+    expect(pulse.dcOffset).to.have.property('buffer');
+    expect(pulse.dcOffset).to.have.property('channelCount');
+    expect(pulse.dcGain).to.have.property('gain');
+    expect(pulse.output.gain.value).to.equal(1);
+  });
+  it('can be with arguments', function () {
+    let pulse = new p5.Pulse(220, 0.4);
+    expect(pulse.w).to.equal(0.4);
+    expect(pulse.f).to.equal(220);
+    console.log(pulse);
+    expect(pulse.dNode.delayTime.value).to.be.approximately(0.0009, 0.00001);
+    expect(pulse.dcGain.gain.value).to.be.approximately(0.17, 0.001);
+  });
+  describe('methods', function () {
+    it('can set width', function (done) {
+      let pulse = new p5.Pulse();
+      pulse.width(0.3);
+      expect(pulse.dNode.delayTime.value).to.be.approximately(0.00068, 0.00001);
+      expect(pulse.dcGain.gain.value).to.be.approximately(0.34, 0.001);
+
+      //can take non-numerical value
+      let osc = new p5.Oscillator();
+      pulse.width(osc);
+      done();
+    });
+    it('can be started and stopped', function (done) {
+      let pulse = new p5.Pulse(444, 0.1);
+      expect(pulse.started).to.be.false;
+      pulse.start(221, 0.1);
+      setTimeout(() => {
+        expect(pulse.oscillator.frequency.value).to.equal(221);
+        expect(pulse.oscillator.type).to.equal('sawtooth');
+        expect(pulse.osc2.oscillator.type).to.equal('sawtooth');
+        done();
+      }, 500);
+      expect(pulse.started).to.be.true;
+      expect(pulse.osc2.started).to.be.true;
+      pulse.stop(221, 0.1);
+      expect(pulse.started).to.be.false;
+      expect(pulse.osc2.started).to.be.false;
+    });
+    it('can set frequency', function () {
+      //TODO
+    });
+  });
+});