add some tests for synths and audiovoice

Author: therewasaguy

test/test.js

@@ -6,10 +6,21 @@ require.config({
 	}
 });
 
-var allTests = ['tests/p5.SoundFile', 'tests/p5.Amplitude', 
-	'tests/p5.Oscillator', 'tests/p5.Distortion', 
-	'tests/p5.Effect','tests/p5.Filter', 'tests/p5.FFT', 'tests/p5.Compressor',
-	'tests/p5.EQ', 'tests/p5.AudioIn'];
+var allTests = [
+	'tests/p5.SoundFile',
+	'tests/p5.Amplitude',
+	'tests/p5.Oscillator',
+	'tests/p5.Distortion',
+	'tests/p5.Effect',
+	'tests/p5.Filter',
+	'tests/p5.FFT',
+	'tests/p5.Compressor',
+	'tests/p5.EQ',
+	'tests/p5.AudioIn',
+	'tests/p5.AudioVoice',
+	'tests/p5.MonoSynth',
+	'tests/p5.PolySynth'
+];
 
 p5.prototype.masterVolume(0);
 

test/tests/p5.AudioVoice.js

@@ -0,0 +1,21 @@
+define(['chai'],
+  function(chai) {
+
+  var expect = chai.expect;
+
+  describe('p5.AudioVoice', function() {
+
+    it('can be created and disposed', function() {
+      var av = new p5.AudioVoice();
+      av.dispose();
+    });
+
+    it('can convert strings to frequency values', function() {
+      var av = new p5.AudioVoice();
+      var freq = av._setNote("A4");
+      expect(freq).to.equal(440);
+      av.dispose();
+    });
+  });
+
+});

test/tests/p5.MonoSynth.js

@@ -0,0 +1,26 @@
+define(['chai'],
+  function(chai) {
+
+  var expect = chai.expect;
+
+  describe('p5.MonoSynth', function() {
+
+    it('can be created and disposed', function() {
+      var monoSynth = new p5.MonoSynth();
+      monoSynth.dispose();
+    });
+
+    it('can play a note string', function(done) {
+      var monoSynth = new p5.MonoSynth();
+      monoSynth.play('A2');
+
+      // wait for scheduled value to complete
+      setTimeout(function() {
+        expect(monoSynth.oscillator.freq().value).to.equal(110);
+        monoSynth.dispose();
+        done();
+      }, 1);
+    });
+  });
+
+});

test/tests/p5.PolySynth.js

@@ -0,0 +1,37 @@
+define(['chai'],
+  function(chai) {
+
+  var expect = chai.expect;
+
+  describe('p5.PolySynth', function() {
+    var audioContext = p5.prototype.getAudioContext();
+
+    it('can be created and disposed', function() {
+      var polySynth = new p5.PolySynth();
+      polySynth.dispose();
+    });
+
+    it('keeps track of the number of voicesInUse', function() {
+      var polySynth = new p5.PolySynth();
+      var noteDuration = 0.01;
+
+      var noteTriggerTime = audioContext.currentTime;
+      var noteActiveTime = noteTriggerTime + noteDuration/2;
+      var noteDoneTime = noteTriggerTime + noteDuration;
+
+      expect(polySynth._voicesInUse.getValueAtTime(noteTriggerTime)).to.equal(0);
+
+      polySynth.play('A2', 0, 0, noteDuration);
+      expect(polySynth._voicesInUse.getValueAtTime(noteActiveTime)).to.equal(1);
+      polySynth.play('A3', 0, 0, noteDuration);
+      expect(polySynth._voicesInUse.getValueAtTime(noteActiveTime)).to.equal(2);
+      polySynth.play('A4', 0, 0, noteDuration);
+      expect(polySynth._voicesInUse.getValueAtTime(noteActiveTime)).to.equal(3);
+
+      expect(polySynth._voicesInUse.getValueAtTime(noteDoneTime)).to.equal(0);
+
+      polySynth.dispose();
+    });
+  });
+
+});