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/*
* Copyright 2009 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.unitgen;
import junit.framework.TestCase;
import com.jsyn.engine.SynthesisEngine;
import com.softsynth.math.AudioMath;
/**
* @author Phil Burk, (C) 2009 Mobileer Inc
*/
public class TestMath extends TestCase {
SynthesisEngine synthesisEngine;
@Override
protected void setUp() throws Exception {
super.setUp();
synthesisEngine = new SynthesisEngine();
}
@Override
protected void tearDown() throws Exception {
super.tearDown();
}
public void testAdd() {
Add add = new Add();
add.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
add.inputA.setValueInternal(x);
add.inputB.setValueInternal(y);
add.generate();
assertEquals("Add", x + y, add.output.getValue(), 0.001);
}
public void testPartialAdd() {
Add add = new Add();
add.setSynthesisEngine(synthesisEngine);
double x = 2.5;
double y = 9.7;
add.inputA.setValueInternal(x);
add.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
add.generate(2, 5);
assertEquals("Add partial", 0.0, add.output.getValues()[0], 0.001);
assertEquals("Add partial", 0.0, add.output.getValues()[1], 0.001);
assertEquals("Add partial", x + y, add.output.getValues()[2], 0.001);
assertEquals("Add partial", x + y, add.output.getValues()[3], 0.001);
assertEquals("Add partial", x + y, add.output.getValues()[4], 0.001);
assertEquals("Add partial", 0.0, add.output.getValues()[5], 0.001);
assertEquals("Add partial", 0.0, add.output.getValues()[6], 0.001);
assertEquals("Add partial", 0.0, add.output.getValues()[7], 0.001);
}
/**
* Unit test for Subtract.java - added by Lisa Tolentino 06/17/2009
*/
public void testSubtract() {
Subtract sub = new Subtract();
sub.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
sub.inputA.setValueInternal(x);
sub.inputB.setValueInternal(y);
sub.generate();
assertEquals("Subtract", x - y, sub.output.getValue(), 0.001);
}
public void testPartialSubtract() {
Subtract sub = new Subtract();
sub.setSynthesisEngine(synthesisEngine);
double x = 2.5;
double y = 9.7;
sub.inputA.setValueInternal(x);
sub.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
sub.generate(2, 5);
assertEquals("Subtract partial", 0.0, sub.output.getValues()[0], 0.001);
assertEquals("Subtract partial", 0.0, sub.output.getValues()[1], 0.001);
assertEquals("Subtract partial", x - y, sub.output.getValues()[2], 0.001);
assertEquals("Subtract partial", x - y, sub.output.getValues()[3], 0.001);
assertEquals("Subtract partial", x - y, sub.output.getValues()[4], 0.001);
assertEquals("Subtract partial", 0.0, sub.output.getValues()[5], 0.001);
assertEquals("Subtract partial", 0.0, sub.output.getValues()[6], 0.001);
assertEquals("Subtract partial", 0.0, sub.output.getValues()[7], 0.001);
}
/**
* Unit test for Multiply.java - added by Lisa Tolentino 06/19/2009
*/
public void testMultiply() {
Multiply mult = new Multiply();
mult.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
mult.inputA.setValueInternal(x);
mult.inputB.setValueInternal(y);
mult.generate();
assertEquals("Multiply", x * y, mult.output.getValue(), 0.001);
}
public void testPartialMultiply() {
Multiply mult = new Multiply();
mult.setSynthesisEngine(synthesisEngine);
double x = 2.5;
double y = 9.7;
mult.inputA.setValueInternal(x);
mult.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
mult.generate(2, 5);
assertEquals("Multiply partial", 0.0, mult.output.getValues()[0], 0.001);
assertEquals("Multiply partial", 0.0, mult.output.getValues()[1], 0.001);
assertEquals("Multiply partial", x * y, mult.output.getValues()[2], 0.001);
assertEquals("Multiply partial", x * y, mult.output.getValues()[3], 0.001);
assertEquals("Multiply partial", x * y, mult.output.getValues()[4], 0.001);
assertEquals("Multiply partial", 0.0, mult.output.getValues()[5], 0.001);
assertEquals("Multiply partial", 0.0, mult.output.getValues()[6], 0.001);
assertEquals("Multiply partial", 0.0, mult.output.getValues()[7], 0.001);
}
/**
* Unit test for Divide.java - added by Lisa Tolentino 06/19/2009
*/
public void testDivide() {
Divide divide = new Divide();
divide.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
divide.inputA.setValueInternal(x);
divide.inputB.setValueInternal(y);
divide.generate();
assertEquals("Divide", x / y, divide.output.getValue(), 0.001);
}
public void testPartialDivide() {
Divide divide = new Divide();
divide.setSynthesisEngine(synthesisEngine);
double x = 2.5;
double y = 9.7;
divide.inputA.setValueInternal(x);
divide.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
divide.generate(2, 5);
assertEquals("Divide partial", 0.0, divide.output.getValues()[0], 0.001);
assertEquals("Divide partial", 0.0, divide.output.getValues()[1], 0.001);
assertEquals("Divide partial", x / y, divide.output.getValues()[2], 0.001);
assertEquals("Divide partial", x / y, divide.output.getValues()[3], 0.001);
assertEquals("Divide partial", x / y, divide.output.getValues()[4], 0.001);
assertEquals("Divide partial", 0.0, divide.output.getValues()[5], 0.001);
assertEquals("Divide partial", 0.0, divide.output.getValues()[6], 0.001);
assertEquals("Divide partial", 0.0, divide.output.getValues()[7], 0.001);
}
/**
* Unit test for MultiplyAdd.java - added by Lisa Tolentino 06/19/2009
*/
public void testMultiplyAdd() {
MultiplyAdd multAdd = new MultiplyAdd();
multAdd.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
double z = 2.28;
multAdd.inputA.setValueInternal(x);
multAdd.inputB.setValueInternal(y);
multAdd.inputC.setValueInternal(z);
multAdd.generate();
assertEquals("MultiplyAdd", (x * y) + z, multAdd.output.getValue(), 0.001);
}
public void testPartialMultiplyAdd() {
MultiplyAdd multAdd = new MultiplyAdd();
multAdd.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
double z = 2.28;
multAdd.inputA.setValueInternal(x);
multAdd.inputB.setValueInternal(y);
multAdd.inputC.setValueInternal(z);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
multAdd.generate(2, 5);
assertEquals("MultiplyAdd partial", 0.0, multAdd.output.getValues()[0], 0.001);
assertEquals("MultiplyAdd partial", 0.0, multAdd.output.getValues()[1], 0.001);
assertEquals("MultiplyAdd partial", (x * y) + z, multAdd.output.getValues()[2], 0.001);
assertEquals("MultiplyAdd partial", (x * y) + z, multAdd.output.getValues()[3], 0.001);
assertEquals("MultiplyAdd partial", (x * y) + z, multAdd.output.getValues()[4], 0.001);
assertEquals("MultiplyAdd partial", 0.0, multAdd.output.getValues()[5], 0.001);
assertEquals("MultiplyAdd partial", 0.0, multAdd.output.getValues()[6], 0.001);
assertEquals("MultiplyAdd partial", 0.0, multAdd.output.getValues()[7], 0.001);
}
/**
* Unit test for Compare.java - added by Lisa Tolentino 06/19/2009
*/
public void testCompare() {
UnitBinaryOperator compare = new Compare();
compare.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
compare.inputA.setValueInternal(x);
compare.inputB.setValueInternal(y);
compare.generate();
assertEquals("Compare", (x > y ? 1 : 0), compare.output.getValue(), 0.001);
}
public void testPartialCompare() {
UnitBinaryOperator compare = new Compare();
compare.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
compare.inputA.setValueInternal(x);
compare.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
compare.generate(2, 5);
assertEquals("Compare partial", 0.0, compare.output.getValues()[0], 0.001);
assertEquals("Compare partial", 0.0, compare.output.getValues()[1], 0.001);
assertEquals("Compare partial", (x > y ? 1 : 0), compare.output.getValues()[2], 0.001);
assertEquals("Compare partial", (x > y ? 1 : 0), compare.output.getValues()[3], 0.001);
assertEquals("Compare partial", (x > y ? 1 : 0), compare.output.getValues()[4], 0.001);
assertEquals("Compare partial", 0.0, compare.output.getValues()[5], 0.001);
assertEquals("Compare partial", 0.0, compare.output.getValues()[6], 0.001);
assertEquals("Compare partial", 0.0, compare.output.getValues()[7], 0.001);
}
/**
* Unit test for Maximum.java - added by Lisa Tolentino 06/20/2009
*/
public void testMaximum() {
Maximum max = new Maximum();
max.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
max.inputA.setValueInternal(x);
max.inputB.setValueInternal(y);
max.generate();
assertEquals("Maximum", (x > y ? x : y), max.output.getValue(), 0.001);
}
public void testPartialMaximum() {
Maximum max = new Maximum();
max.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
max.inputA.setValueInternal(x);
max.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
max.generate(2, 5);
assertEquals("Maximum partial", 0.0, max.output.getValues()[0], 0.001);
assertEquals("Maximum partial", 0.0, max.output.getValues()[1], 0.001);
assertEquals("Maximum partial", (x > y ? x : y), max.output.getValues()[2], 0.001);
assertEquals("Maximum partial", (x > y ? x : y), max.output.getValues()[3], 0.001);
assertEquals("Maximum partial", (x > y ? x : y), max.output.getValues()[4], 0.001);
assertEquals("Maximum partial", 0.0, max.output.getValues()[5], 0.001);
assertEquals("Maximum partial", 0.0, max.output.getValues()[6], 0.001);
assertEquals("Maximum partial", 0.0, max.output.getValues()[7], 0.001);
}
/**
* Unit test for Minimum.java - added by Lisa Tolentino 06/20/2009
*/
public void testMinimum() {
Minimum min = new Minimum();
min.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
min.inputA.setValueInternal(x);
min.inputB.setValueInternal(y);
min.generate();
assertEquals("Minimum", (x < y ? x : y), min.output.getValue(), 0.001);
}
public void testPartialMinimum() {
Minimum min = new Minimum();
min.setSynthesisEngine(synthesisEngine);
double x = 33.99;
double y = 8.31;
min.inputA.setValueInternal(x);
min.inputB.setValueInternal(y);
// Only generate a few values in the middle.
// This is to test low latency feedback loops.
// Only generate values for 2,3,4
min.generate(2, 5);
assertEquals("Maximum partial", 0.0, min.output.getValues()[0], 0.001);
assertEquals("Maximum partial", 0.0, min.output.getValues()[1], 0.001);
assertEquals("Maximum partial", (x < y ? x : y), min.output.getValues()[2], 0.001);
assertEquals("Maximum partial", (x < y ? x : y), min.output.getValues()[3], 0.001);
assertEquals("Maximum partial", (x < y ? x : y), min.output.getValues()[4], 0.001);
assertEquals("Maximum partial", 0.0, min.output.getValues()[5], 0.001);
assertEquals("Maximum partial", 0.0, min.output.getValues()[6], 0.001);
assertEquals("Maximum partial", 0.0, min.output.getValues()[7], 0.001);
}
public void testPowerOfTwo() {
PowerOfTwo powerOfTwo = new PowerOfTwo();
powerOfTwo.setSynthesisEngine(synthesisEngine);
final double smallValue = -1.5308084989341915E-17;
double values[] = {
0.0, 1.3, 4.5, -0.5, -1.0, -2.8, smallValue, -smallValue, 1.0 - smallValue,
1.0 + smallValue
};
for (double in : values) {
powerOfTwo.input.setValueInternal(in);
powerOfTwo.generate();
assertEquals("PowerOfTwo", Math.pow(2.0, in), powerOfTwo.output.getValue(), 0.001);
}
}
public void testPitchToFrequency() {
PitchToFrequency ugen = new PitchToFrequency();
ugen.setSynthesisEngine(synthesisEngine);
final double smallValue = -1.5308084989341915E-17;
double values[] = {
49.0, 49.5, 50.0 + smallValue,
60.0 -smallValue,
79.2, 12.9, 118.973
};
// Sanity check AudioMath
assertEquals("PitchToFrequency", 440.0, AudioMath.pitchToFrequency(69), 0.001);
assertEquals("PitchToFrequency", 660.0, AudioMath.pitchToFrequency(69+7.02), 0.1);
for (double pitch : values) {
ugen.input.setValueInternal(pitch);
ugen.generate();
assertEquals("PitchToFrequency", AudioMath.pitchToFrequency(pitch),
ugen.output.getValue(), 0.001);
}
}
}
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