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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.ote.message.test.element;
import java.util.Random;
import junit.framework.Assert;
import org.eclipse.osee.ote.message.data.HeaderData;
import org.eclipse.osee.ote.message.data.MemoryResource;
import org.eclipse.osee.ote.message.elements.Float64Element;
import org.junit.Test;
public class Float64ElementTest {
@Test
public void testFloat64() {
final HeaderData hd = new HeaderData("test_data", new MemoryResource(new byte[64], 0, 64));
Float64Element[] e = new Float64Element[8];
for (int i = 0; i < e.length; i++) {
e[i] = new Float64Element(null, "Float64@" + i, hd, i * 8, 0, 63);
}
Random r = new Random(System.currentTimeMillis());
double[] vals = new double[e.length];
for (int i = 0; i < 1000; i++) {
generateAscending(r, e, vals, e.length);
check(e, vals, e.length);
generateDescending(r, e, vals, e.length);
check(e, vals, e.length);
// zeroize test
for (int z = 0; z < e.length; z += 2) {
e[z].zeroize();
vals[z] = 0;
}
check(e, vals, e.length);
}
}
private void generateAscending(Random r, Float64Element[] e, double[] expectedVals, int length) {
for (int i = 0; i < length; i++) {
double val = r.nextDouble();
Float64Element el = e[i];
el.setValue(val);
expectedVals[i] = val;
if (el.getValue() != expectedVals[i]) {
Assert.failNotEquals(
String.format("set/get fail on %s: msb=%d, lsb=%d", el.getName(), el.getMsb(), el.getLsb()),
expectedVals[i], el.getValue());
}
}
}
private void generateDescending(Random r, Float64Element[] e, double[] expectedVals, int length) {
for (int i = length - 1; i >= 0; i--) {
double val = r.nextDouble();
Float64Element el = e[i];
el.setValue(val);
expectedVals[i] = val;
if (el.getValue() != expectedVals[i]) {
Assert.failNotEquals(
String.format("set/get fail on %s: msb=%d, lsb=%d", el.getName(), el.getMsb(), el.getLsb()),
Double.toHexString(expectedVals[i]), Double.toHexString(el.getValue()));
}
}
}
private void check(Float64Element[] e, double[] expectedVals, int length) {
for (int i = 0; i < length; i++) {
Float64Element el = e[i];
if (el.getValue() != expectedVals[i]) {
Assert.failNotEquals(
String.format("corruption detect on %s: msb=%d, lsb=%d", el.getName(), el.getMsb(), el.getLsb()),
expectedVals[i], e[i].getValue());
}
String v = Double.toString(expectedVals[i]);
if (!el.valueOf().equals(v)) {
Assert.failNotEquals(
String.format("set/get fail on %s: msb=%d, lsb=%d", el.getName(), el.getMsb(), el.getLsb()), v,
el.valueOf());
}
}
}
}
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