/*
 * Copyright (c) 2013 Cisco Systems, Inc. and others.  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
 */

package org.openflow.protocol;

import junit.framework.TestCase;

public class OFMatchTest extends TestCase {
    public void testFromString() {
        OFMatch correct = new OFMatch();
        OFMatch tester = new OFMatch();

        // Various combinations of "all"/"any"
        tester.fromString("OFMatch[]");
        // correct is already wildcarded
        TestCase.assertEquals(correct, tester);
        tester.fromString("all");
        TestCase.assertEquals(correct, tester);
        tester.fromString("ANY");
        TestCase.assertEquals(correct, tester);
        tester.fromString("");
        TestCase.assertEquals(correct, tester);
        tester.fromString("[]");
        TestCase.assertEquals(correct, tester);

        // ip_src
        correct.setWildcards(~OFMatch.OFPFW_NW_SRC_MASK);
        correct.setNetworkSource(0x01010203);
        tester.fromString("nw_src=1.1.2.3");
        TestCase.assertEquals(correct.getNetworkSourceMaskLen(), tester
                .getNetworkSourceMaskLen());
        TestCase.assertEquals(correct, tester);
        tester.fromString("IP_sRc=1.1.2.3");
        TestCase.assertEquals(correct.getNetworkSourceMaskLen(), tester
                .getNetworkSourceMaskLen());
        TestCase.assertEquals(correct, tester);
    }

    public void testToString() {
        OFMatch match = new OFMatch();
        match.fromString("nw_dst=3.4.5.6/8");
        TestCase.assertEquals(8, match.getNetworkDestinationMaskLen());
        String correct = "OFMatch[nw_dst=3.0.0.0/8]";
        String tester = match.toString();

        TestCase.assertEquals(correct, tester);
        tester = "OFMatch[dl_type=35020]";
        correct = "OFMatch[dl_type=0x88cc]";
        match = new OFMatch();
        match.fromString(tester);
        TestCase.assertEquals(correct, match.toString());
        OFMatch match2 = new OFMatch();
        match2.fromString(correct);
        TestCase.assertEquals(match, match2);
    }

    public void testClone() {
        OFMatch match1 = new OFMatch();
        OFMatch match2 = match1.clone();
        TestCase.assertEquals(match1, match2);
        match2.setNetworkProtocol((byte) 4);
        match2.setWildcards(match2.getWildcards() & ~OFMatch.OFPFW_NW_PROTO);
        TestCase.assertNotSame(match1, match2);
    }

    public void testIpToString() {
        String test = OFMatch.ipToString(-1);
        TestCase.assertEquals("255.255.255.255", test);
    }

    public void testReverse() {
        OFMatch match1 = new OFMatch();
        OFMatch match2 = match1.reverse((short)0, true);
        TestCase.assertEquals(match1, match2);

        match1.fromString("dl_dst=00:11:22:33:44:55");
        match2 = match1.reverse((short)0, true);
        OFMatch match3 = new OFMatch();
        match3.fromString("dl_src=00:11:22:33:44:55");
        TestCase.assertEquals(match2, match3);

        match1.fromString("nw_dst=192.168.0.0/24");
        match2 = match1.reverse((short)0, true);
        match3.fromString("nw_src=192.168.0.0/24");
        TestCase.assertEquals(match2, match3);

        match1.fromString("in_port=1");
        match2 = match1.reverse((short)2, false);
        match3.fromString("in_port=2");
        TestCase.assertEquals(match2, match3);
    }

    public void testSubsumes() {
        OFMatch match1 = new OFMatch();
        OFMatch match2 = new OFMatch();
        match2.fromString("dl_dst=00:11:22:33:44:55");
        TestCase.assertTrue(match1.subsumes(match2));
        TestCase.assertFalse(match2.subsumes(match1));

        match1.fromString("nw_dst=192.168.0.0/16");
        match2.fromString("nw_dst=192.168.0.0/24");
        TestCase.assertTrue(match1.subsumes(match2));
        TestCase.assertFalse(match2.subsumes(match1));
    }
}