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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.JSyn;
import com.jsyn.Synthesizer;
import com.jsyn.data.DoubleTable;
import com.jsyn.data.Function;
/**
* @author Phil Burk, (C) 2009 Mobileer Inc
*/
public class TestFunction extends TestCase {
Synthesizer synth;
@Override
protected void setUp() throws Exception {
super.setUp();
synth = JSyn.createSynthesizer();
synth.setRealTime(false);
synth.start();
}
@Override
protected void tearDown() throws Exception {
synth.stop();
}
public void testDoubleTable() {
double[] data = {
2.0, 0.0, 3.0
};
DoubleTable table = new DoubleTable(data);
assertEquals("DoubleTable below", 2.0, table.evaluate(-1.4));
assertEquals("DoubleTable edge", 2.0, table.evaluate(-1.0));
assertEquals("DoubleTable mid", 1.0, table.evaluate(-0.5));
assertEquals("DoubleTable zero", 0.0, table.evaluate(0.0));
assertEquals("DoubleTable mid", 0.75, table.evaluate(0.25));
assertEquals("DoubleTable above", 3.0, table.evaluate(1.3));
}
public void testFunctionEvaluator() throws InterruptedException {
FunctionEvaluator shaper = new FunctionEvaluator();
synth.add(shaper);
shaper.start();
Function cuber = new Function() {
@Override
public double evaluate(double x) {
return x * x * x;
}
};
shaper.function.set(cuber);
shaper.input.set(0.5);
synth.sleepFor(0.001);
assertEquals("Cuber", (0.5 * 0.5 * 0.5), shaper.output.getValue());
}
}
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