/*
*
* Copyright 2013 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.netflix.zeno.diff;
import com.netflix.zeno.genericobject.GenericObject.Field;
import com.netflix.zeno.genericobject.JaccardMatrixPairwiseMatcher;
import com.netflix.zeno.serializer.NFTypeSerializer;
import com.netflix.zeno.serializer.SerializerFactory;
import java.util.ArrayList;
import java.util.List;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class JaccardMatrixPairwiseMatcherTest {
private DiffSerializationFramework diffFramework = null;
private JaccardMatrixPairwiseMatcher matcher = null;
@Before
public void setUp() {
List<Field> objects1 = new ArrayList<Field>();
List<Field> objects2 = new ArrayList<Field>();
List<DiffRecord> recs1 = new ArrayList<DiffRecord>();
List<DiffRecord> recs2 = new ArrayList<DiffRecord>();
diffFramework = new DiffSerializationFramework(new SerializerFactory() {
public NFTypeSerializer<?>[] createSerializers() {
return new NFTypeSerializer<?>[] { new ASerializer() };
}
});
addObject(new TypeB(1, 1, 1), "TypeB", objects1, recs1);
addObject(new TypeB(2, 2, 2), "TypeB", objects1, recs1);
addObject(new TypeB(3, 3, 3), "TypeB", objects1, recs1);
addObject(new TypeB(3, 3, 3), "TypeB", objects2, recs2);
addObject(new TypeB(4, 5, 6), "TypeB", objects2, recs2);
addObject(new TypeB(2, 4, 4), "TypeB", objects2, recs2);
addObject(new TypeB(1, 1, 2), "TypeB", objects2, recs2);
matcher = new JaccardMatrixPairwiseMatcher(objects1, recs1, objects2, recs2);
}
private void addObject(Object obj, String serializerName, List<Field> objs, List<DiffRecord> recs) {
NFTypeSerializer<Object> serializer = (NFTypeSerializer<Object>) diffFramework.getSerializer(serializerName);
DiffRecord rec = new DiffRecord();
rec.setSchema(serializer.getFastBlobSchema());
rec.setTopLevelSerializerName(serializerName);
serializer.serialize(obj, rec);
objs.add(new Field("obj", obj));
recs.add(rec);
}
@Test
public void matchesPairs() {
Assert.assertTrue(matcher.nextPair());
Assert.assertEquals(new TypeB(3, 3, 3), matcher.getX().getValue());
Assert.assertEquals(new TypeB(3, 3, 3), matcher.getY().getValue());
Assert.assertTrue(matcher.nextPair());
Assert.assertEquals(new TypeB(1, 1, 1), matcher.getX().getValue());
Assert.assertEquals(new TypeB(1, 1, 2), matcher.getY().getValue());
Assert.assertTrue(matcher.nextPair());
Assert.assertEquals(new TypeB(2, 2, 2), matcher.getX().getValue());
Assert.assertEquals(new TypeB(2, 4, 4), matcher.getY().getValue());
Assert.assertTrue(matcher.nextPair());
Assert.assertNull(matcher.getX());
Assert.assertEquals(new TypeB(4, 5, 6), matcher.getY().getValue());
Assert.assertFalse(matcher.nextPair());
}
}