Update Files

lib/aura/Tests/auratests/dsp/TestFractionalDelayLine.hx

@@ -0,0 +1,67 @@
+package auratests.dsp;
+
+import utest.Assert;
+
+import aura.Aura;
+import aura.dsp.FractionalDelayLine;
+import aura.types.AudioBuffer;
+import aura.utils.TestSignals;
+
+@:access(aura.dsp.FractionalDelayLine)
+class TestFractionalDelayLine extends utest.Test {
+	var audioBuffer: AudioBuffer;
+	var delayLine: FractionalDelayLine;
+
+	function setup() {
+		audioBuffer = new AudioBuffer(2, 8);
+		delayLine = new FractionalDelayLine(2, 8);
+	}
+
+	function test_zeroDelayTime_noDelay() {
+		TestSignals.fillUnitImpulse(audioBuffer.getChannelView(0));
+		TestSignals.fillUnitImpulse(audioBuffer.getChannelView(1));
+
+		delayLine.at_setDelayLength(Left, 0.0);
+		delayLine.at_setDelayLength(Right, 0.0);
+
+		delayLine.process(audioBuffer);
+
+		Assert.floatEquals(1.0, audioBuffer.getChannelView(0)[0]);
+		Assert.floatEquals(0.0, audioBuffer.getChannelView(0)[1]);
+
+		Assert.floatEquals(1.0, audioBuffer.getChannelView(1)[0]);
+		Assert.floatEquals(0.0, audioBuffer.getChannelView(1)[1]);
+	}
+
+	function test_integralDelayTime_independentChannels() {
+		TestSignals.fillUnitImpulse(audioBuffer.getChannelView(0));
+		TestSignals.fillUnitImpulse(audioBuffer.getChannelView(1));
+
+		delayLine.at_setDelayLength(Left, 1.0);
+		delayLine.at_setDelayLength(Right, 3.0);
+
+		delayLine.process(audioBuffer);
+
+		Assert.floatEquals(0.0, audioBuffer.getChannelView(0)[0]);
+		Assert.floatEquals(1.0, audioBuffer.getChannelView(0)[1]);
+
+		Assert.floatEquals(0.0, audioBuffer.getChannelView(1)[0]);
+		Assert.floatEquals(1.0, audioBuffer.getChannelView(1)[3]);
+	}
+
+	function test_floatDelayTime_independentChannels() {
+		TestSignals.fillUnitImpulse(audioBuffer.getChannelView(0));
+		TestSignals.fillUnitImpulse(audioBuffer.getChannelView(1));
+
+		delayLine.at_setDelayLength(Left, 0.8);
+		delayLine.at_setDelayLength(Right, 3.4);
+
+		delayLine.process(audioBuffer);
+
+		Assert.floatEquals(0.2, audioBuffer.getChannelView(0)[0]);
+		Assert.floatEquals(0.8, audioBuffer.getChannelView(0)[1]);
+
+		Assert.floatEquals(0.6, audioBuffer.getChannelView(1)[3]);
+		Assert.floatEquals(0.4, audioBuffer.getChannelView(1)[4]);
+	}
+}