/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.flink.streaming.runtime.partitioner;
import static org.junit.Assert.*;
import org.apache.flink.api.java.tuple.Tuple;
import org.apache.flink.runtime.plugable.SerializationDelegate;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.junit.Before;
import org.junit.Test;
public class RebalancePartitionerTest {
private RebalancePartitioner<Tuple> distributePartitioner;
private StreamRecord<Tuple> streamRecord = new StreamRecord<Tuple>(null);
private SerializationDelegate<StreamRecord<Tuple>> sd = new SerializationDelegate<StreamRecord<Tuple>>(
null);
@Before
public void setPartitioner() {
distributePartitioner = new RebalancePartitioner<Tuple>();
}
@Test
public void testSelectChannelsLength() {
sd.setInstance(streamRecord);
assertEquals(1, distributePartitioner.selectChannels(sd, 1).length);
assertEquals(1, distributePartitioner.selectChannels(sd, 2).length);
assertEquals(1, distributePartitioner.selectChannels(sd, 1024).length);
}
@Test
public void testSelectChannelsInterval() {
sd.setInstance(streamRecord);
assertEquals(0, distributePartitioner.selectChannels(sd, 3)[0]);
assertEquals(1, distributePartitioner.selectChannels(sd, 3)[0]);
assertEquals(2, distributePartitioner.selectChannels(sd, 3)[0]);
assertEquals(0, distributePartitioner.selectChannels(sd, 3)[0]);
}
}