CommutativeLwwSetTest.java

/**
 * Replication Benchmarker
 * https://github.com/score-team/replication-benchmarker/
 * Copyright (C) 2013 LORIA / Inria / SCORE Team
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
package crdt.set.lastwriterwins;

import crdt.CRDTMessage;
import crdt.set.CrdtSetGeneric;
import crdt.PreconditionException;
import java.util.*;
import org.junit.Test;
import static org.junit.Assert.*;

/**
 *
 * @author score
 */
public class CommutativeLwwSetTest<T> {
    
    CrdtSetGeneric tcs = new CrdtSetGeneric();

    @Test
    public void test() throws PreconditionException{        
         tcs.runTests(new CommutativeLwwSet());
    }
    
    @Test
    public void testConcurAddDel() throws PreconditionException{
         Set<T> s = tcs.testApplyConcurAddDel(new CommutativeLwwSet(){{setReplicaNumber(0);}}, 
                 new CommutativeLwwSet(){{setReplicaNumber(1);}});
         assertEquals(new HashSet(){{add('b');}}, s);
    }
    
    @Test
    public void testConcurAddDelInverse() throws PreconditionException{
         Set<T> s = tcs.testApplyConcurAddDel(new CommutativeLwwSet(){{setReplicaNumber(1);}}, 
                 new CommutativeLwwSet(){{setReplicaNumber(0);}});
         assertEquals(new HashSet(){{add('b');}}, s);
    }
    
    @Test
    public void testConcurAddThenDel() throws PreconditionException{
        Set<T> s = tcs.testApplyConcurAddThenDel(new CommutativeLwwSet(), new CommutativeLwwSet());
        assertEquals(new HashSet(), s);
    }
    
    @Test
    public void testRemoveAfterConcuAdd() throws PreconditionException{
        Set<T> s = tcs.testApplyRemoveAfterConcuAdd(new CommutativeLwwSet(), new CommutativeLwwSet());
        assertEquals(new HashSet(), s);
    }
    
    @Test(expected = PreconditionException.class)
    public void testExceptionAdd() throws PreconditionException{
         
         CrdtSetGeneric tcs = new CrdtSetGeneric();
         tcs.testAddException(new CommutativeLwwSet());
    }
     
    @Test(expected = PreconditionException.class)
    public void testExceptionRmv() throws PreconditionException{
         
         CrdtSetGeneric tcs = new CrdtSetGeneric();
         tcs.testRemoveException(new CommutativeLwwSet());
    }

    @Test
    public void testapply() throws PreconditionException {

        CommutativeLwwSet Rep1 = new CommutativeLwwSet();
        CommutativeLwwSet Rep2 = new CommutativeLwwSet();
        CommutativeLwwSet Rep3 = new CommutativeLwwSet();
        CommutativeLwwSet lw = new CommutativeLwwSet();

        //three concurents insertions
        CRDTMessage m1 = Rep1.innerAdd('a');
        CRDTMessage m2 = Rep2.innerAdd('a');
        CRDTMessage m3 = Rep3.innerAdd('a');

        lw.applyRemote(m1);
        lw.applyRemote(m2);
        lw.applyRemote(m3);

        assertEquals(lw.getmapA().size(), 1);
        assertEquals(lw.getmapR().size(), 0);
        assertEquals(lw.getmapA().get('a'), 1);

    }

    @Test
    public void testapply2() throws PreconditionException {

        CommutativeLwwSet Rep1 = new CommutativeLwwSet();

        Rep1.innerAdd('a');
        Rep1.innerAdd('b');

        CommutativeLwwSet Rep2 = new CommutativeLwwSet();
        Rep2.setmapA(Rep1.getmapA());

        assertEquals(Rep2.getmapA().size(), 2);
        assertEquals(Rep2.getmapR().size(), 0);
        assertEquals(Rep2.getmapA().get('a'), 1);
        assertEquals(Rep2.getmapA().get('b'), 1);

        CRDTMessage m3 = Rep1.innerRemove('a');

        Rep2.applyRemote(m3);

        assertEquals(Rep2.getmapA().size(), 1);
        assertEquals(Rep2.getmapR().size(), 1);
        assertEquals(Rep2.getmapR().get('a'), 2);
        assertEquals(Rep2.getmapA().get('b'), 1);
    }

    @Test
    public void testapply3() throws PreconditionException {

        //(innerAdd,rmv)/(innerAdd)
        CommutativeLwwSet Rep1 = new CommutativeLwwSet();

        CRDTMessage m1 = Rep1.innerAdd('a');
        CRDTMessage m2 = Rep1.innerRemove('a');

        CommutativeLwwSet Rep2 = new CommutativeLwwSet();
        CRDTMessage m3 = Rep2.innerAdd('a');


        Rep2.applyRemote(m1);
        Rep2.applyRemote(m2);
        Rep1.applyRemote(m3);

        assertEquals(Rep1.getmapA().size(), 0);
        assertEquals(Rep2.getmapA().size(), 0);

        assertEquals(Rep1.getmapR().size(), 1);
        assertEquals(Rep2.getmapR().size(), 1);

        assertEquals(Rep1.getmapR().get('a'), 2);
        assertEquals(Rep2.getmapR().get('a'), 2);
    }
    
    @Test
    public void testapply4() throws PreconditionException {

        //remove element dors not existe
        CommutativeLwwSet Rep1 = new CommutativeLwwSet();
        CommutativeLwwSet Rep2 = new CommutativeLwwSet();
        CRDTMessage m1 = Rep1.innerAdd('a');
        
        Rep2.applyRemote(m1);
        CRDTMessage m2 = Rep1.innerRemove('a');
        CRDTMessage m3 = Rep2.innerRemove('a');
        
        Rep2.applyRemote(m2);

        assertEquals(Rep1.getmapA().size(), 0);
        assertEquals(Rep2.getmapA().size(), 0);

        assertEquals(Rep1.getmapR().size(), 1);
        assertEquals(Rep2.getmapR().size(), 1);

        assertEquals(Rep1.getmapR().get('a'), 2);
        assertEquals(Rep2.getmapR().get('a'), 2);
    }
}