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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.dsp;
import static org.junit.jupiter.api.Assertions.assertEquals;
import com.jsyn.engine.SynthesisEngine;
import com.jsyn.unitgen.Add;
import com.jsyn.unitgen.Compare;
import com.jsyn.unitgen.Divide;
import com.jsyn.unitgen.Maximum;
import com.jsyn.unitgen.Minimum;
import com.jsyn.unitgen.Multiply;
import com.jsyn.unitgen.MultiplyAdd;
import com.jsyn.unitgen.PitchToFrequency;
import com.jsyn.unitgen.PowerOfTwo;
import com.jsyn.unitgen.Subtract;
import com.jsyn.unitgen.UnitBinaryOperator;
import com.softsynth.math.AudioMath;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
/**
* @author Phil Burk, (C) 2009 Mobileer Inc
*/
public class TestSimpleDelay {
@Test
public void testProcess() {
SimpleDelay delay = new SimpleDelay(3);
assertEquals(0.0f, delay.process(0.0f), 0.00001, "Start with zero");
assertEquals(0.0f, delay.process(0.7f), 0.00001, "Add an impulse");
assertEquals(0.0f, delay.process(0.0f), 0.00001, "Waiting 0");
assertEquals(0.0f, delay.process(0.0f), 0.00001, "Waiting 1");
assertEquals(0.7f, delay.process(0.0f), 0.00001, "Got it.");
}
@Test
public void testAddRead() {
SimpleDelay delay = new SimpleDelay(3);
assertEquals(0.0f, delay.read(0), 0.00001, "read[0]");
assertEquals(0.0f, delay.read(1), 0.00001, "read[1]");
assertEquals(0.0f, delay.read(2), 0.00001, "read[2]");
delay.write(1.23f);
assertEquals(1.23f, delay.read(0), 0.00001, "w0 read[0]");
assertEquals(0.0f, delay.read(1), 0.00001, "w0 read[1]");
assertEquals(0.0f, delay.read(2), 0.00001, "w0 read[2]");
delay.advance();
delay.write(0.0f);
assertEquals(0.0f, delay.read(0), 0.00001, "w1 read[0]");
assertEquals(1.23f, delay.read(1), 0.00001, "w1 read[1]");
assertEquals(0.0f, delay.read(2), 0.00001, "w1 read[2]");
delay.advance();
delay.write(0.567f);
assertEquals(0.567f, delay.read(0), 0.00001, "w1 read[0]");
assertEquals(0.0f, delay.read(1), 0.00001, "w1 read[1]");
assertEquals(1.23f, delay.read(2), 0.00001, "w1 read[2]");
}
}
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