/*
* This file is part of dhcp4java, a DHCP API for the Java language.
* (c) 2006 Stephan Hadinger
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.dhcp4java.test;
import java.util.Arrays;
import org.dhcp4java.DHCPOption;
import org.dhcp4java.DHCPPacket;
import org.junit.Before;
import org.junit.Test;
import junit.framework.JUnit4TestAdapter;
import static org.junit.Assert.*;
import static org.dhcp4java.DHCPConstants.*;
public class DHCPOptionMirrorTest {
public static junit.framework.Test suite() {
return new JUnit4TestAdapter(DHCPOptionMirrorTest.class);
}
private DHCPOption opt = null;
@Test (expected=IllegalArgumentException.class)
public void testConstructorPad() {
new DHCPOption((byte)0, null, true); // 0 is reserved for padding
}
@Test (expected=IllegalArgumentException.class)
public void testConstructorEnd() {
new DHCPOption((byte)0xFF, null, true); // 0xFF is reserved for "end of options"
}
@Before
public void setupOpt() {
opt = new DHCPOption(DHO_DHCP_LEASE_TIME, null, true);
}
@Test
public void testConstructor() {
assertEquals(DHO_DHCP_LEASE_TIME, opt.getCode());
assertNull(opt.getValue());
}
@Test
public void testGetMirrorValue() {
DHCPOption mirrorOpt;
DHCPPacket pac = new DHCPPacket();
assertEquals(opt, opt.applyOption(pac));
pac.setOptionAsInt(DHO_DHCP_LEASE_TIME, 86400);
mirrorOpt = opt.applyOption(pac);
assertEquals(DHO_DHCP_LEASE_TIME, mirrorOpt.getCode());
assertTrue(Arrays.equals(DHCPOption.int2Bytes(86400), mirrorOpt.getValue()));
pac.setOptionRaw(DHO_DHCP_LEASE_TIME, new byte[0]);
mirrorOpt = opt.applyOption(pac);
assertEquals(DHO_DHCP_LEASE_TIME, mirrorOpt.getCode());
assertTrue(Arrays.equals(new byte[0], mirrorOpt.getValue()));
}
@Test (expected=NullPointerException.class)
public void testGetMirrorValueNull() {
opt.applyOption(null);
}
@Test
public void testGetMirrorValueIfMirrorIsFalse() {
DHCPOption opt2 = new DHCPOption(DHO_DHCP_LEASE_TIME, null, false);
DHCPOption mirrorOpt;
DHCPPacket pac = new DHCPPacket();
assertEquals(opt2, opt2.applyOption(pac));
pac.setOptionAsInt(DHO_DHCP_LEASE_TIME, 86400);
mirrorOpt = opt2.applyOption(pac);
assertEquals(DHO_DHCP_LEASE_TIME, mirrorOpt.getCode());
assertEquals(opt2, mirrorOpt); // not mirrored here since isMirror is false
}
@Test
public void testToString() {
assertEquals("DHO_DHCP_LEASE_TIME(51)=<mirror><null>", opt.toString());
}
}