/*
* Mojito Distributed Hash Table (Mojito DHT)
* Copyright (C) 2006-2007 LimeWire LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.limewire.mojito;
import junit.framework.TestSuite;
public class KUIDTest extends MojitoTestCase {
public KUIDTest(String name) {
super(name);
}
public static TestSuite suite() {
return buildTestSuite(KUIDTest.class);
}
public static void main(String[] args) {
junit.textui.TestRunner.run(suite());
}
public void testCompareTo() {
KUID a = KUID.createWithHexString("E3ED9650238A6C576C987793C01440A0EA91A1FB");
KUID b = KUID.createWithHexString("F26530F8EF3D8BD47285A9B0D2130CC6DCF21868");
assertEquals(0, a.compareTo(a));
assertEquals(-1, a.compareTo(b));
assertEquals(0, b.compareTo(b));
assertEquals(1, b.compareTo(a));
}
public void testImmutability() {
KUID a = KUID.createWithHexString("E3ED9650238A6C576C987793C01440A0EA91A1FB");
KUID b = KUID.createWithHexString("E3ED9650238A6C576C987793C01440A0EA91A1FB");
KUID c = null;
c = b.flip(10); // tests set+unset
assertEquals(a, b);
assertNotEquals(b, c);
byte[] bytes = b.getBytes();
bytes[10] ^= bytes[10];
c = KUID.createWithBytes(bytes);
assertEquals(a, b);
assertNotEquals(b, c);
}
public void testIsNearer() {
KUID lookup = KUID.createWithHexString("E3ED9650238A6C576C987793C01440A0EA91A1FB");
KUID worst = KUID.createWithHexString("F26530F8EF3D8BD47285A9B0D2130CC6DCF21868");
KUID best = KUID.createWithHexString("F2617265969422D11CFB73C75EE8B649132DFB37");
assertTrue(worst.isNearerTo(lookup, best));
assertFalse(best.isNearerTo(lookup, worst));
}
public void testSetBit() {
KUID a = KUID.createWithHexString("0000000000000000000000000000000000000000");
KUID b = KUID.createWithHexString("1000000000000000000000000000000000000000");
KUID c = KUID.createWithHexString("0800000000000000000000000000000000000000");
assertFalse(a.isBitSet(3));
assertTrue(b.isBitSet(3));
assertFalse(b.isBitSet(4));
assertFalse(c.isBitSet(3));
assertTrue(c.isBitSet(4));
c = c.set(4);
assertTrue(c.isBitSet(4));
c = c.unset(4);
assertFalse(c.isBitSet(4));
c = c.flip(4);
assertTrue(c.isBitSet(4));
c = c.flip(4);
assertFalse(c.isBitSet(4));
}
public void testXor() {
KUID a = KUID.createWithHexString("E3ED9650238A6C576C987793C01440A0EA91A1FB");
KUID b = KUID.createWithHexString("F26530F8EF3D8BD47285A9B0D2130CC6DCF21868");
KUID c = KUID.createWithHexString("1188A6A8CCB7E7831E1DDE2312074C663663B993");
assertEquals(c, a.xor(b));
}
public void testGetCommonPrefixLength() {
KUID a = KUID.createWithHexString("E3ED9650238A6C576C987793C01440A0EA91A1FB");
KUID b = KUID.createWithHexString("F26530F8EF3D8BD47285A9B0D2130CC6DCF21868");
KUID c = KUID.createWithHexString("F26830F8EF3D8BD47285A9B0D2130CC6DCF21868");
KUID d = KUID.createWithHexString("126830F8EF3D8BD47285A9B0D2130CC6DCF21868");
assertEquals(3, a.getCommonPrefixLength(b));
assertEquals(160, a.getCommonPrefixLength(a));
assertEquals(12, b.getCommonPrefixLength(c));
assertEquals(0, d.getCommonPrefixLength(c));
}
}