| /** |
| * 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.apex.malhar.lib.bandwidth; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| |
| import com.google.common.collect.Lists; |
| |
| import com.datatorrent.api.DefaultPartition; |
| import com.datatorrent.api.Partitioner; |
| import com.datatorrent.api.Partitioner.Partition; |
| |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| public class BandwidthPartitionerTest |
| { |
| @Mock |
| private BandwidthManager bandwidthManagerMock; |
| @Mock |
| private BandwidthLimitingOperator operatorMock; |
| @Mock |
| private Partition<BandwidthLimitingOperator> partitionMock; |
| @Mock |
| private Partitioner.PartitioningContext partitionContextMock; |
| @Mock |
| private Iterator<Partition<BandwidthLimitingOperator>> iteratorMock; |
| private BandwidthPartitioner<BandwidthLimitingOperator> underTest = new BandwidthPartitioner<BandwidthLimitingOperator>(); |
| |
| @Before |
| public void setup() |
| { |
| MockitoAnnotations.initMocks(this); |
| when(iteratorMock.hasNext()).thenReturn(true, false); |
| when(iteratorMock.next()).thenReturn(partitionMock); |
| when(partitionMock.getPartitionedInstance()).thenReturn(operatorMock); |
| when(operatorMock.getBandwidthManager()).thenReturn(bandwidthManagerMock); |
| when(bandwidthManagerMock.getBandwidth()).thenReturn(10L); |
| when(partitionContextMock.getInputPorts()).thenReturn(null); |
| } |
| |
| @Test |
| public void testBandwidthOnPartitions() |
| { |
| when(partitionContextMock.getParallelPartitionCount()).thenReturn(0); // no partitions |
| Collection<Partition<BandwidthLimitingOperator>> partitions = Lists.newArrayList(); |
| DefaultPartition<BandwidthLimitingOperator> defaultPartition = new DefaultPartition<BandwidthLimitingOperator>(operatorMock); |
| partitions.add(defaultPartition); |
| |
| underTest.definePartitions(partitions, partitionContextMock); |
| verify(bandwidthManagerMock).setBandwidth(10L); |
| } |
| |
| @Test |
| public void testBandwidthOnIncresedPartitions() |
| { |
| when(partitionContextMock.getParallelPartitionCount()).thenReturn(5); |
| Collection<Partition<BandwidthLimitingOperator>> partitions = Lists.newArrayList(); |
| DefaultPartition<BandwidthLimitingOperator> defaultPartition = new DefaultPartition<BandwidthLimitingOperator>(operatorMock); |
| partitions.add(defaultPartition); |
| |
| underTest.definePartitions(partitions, partitionContextMock); |
| verify(bandwidthManagerMock, times(5)).setBandwidth(2L); |
| } |
| |
| @Test |
| public void testBandwidthOnReducedPartitions() |
| { |
| when(partitionContextMock.getParallelPartitionCount()).thenReturn(2); |
| when(bandwidthManagerMock.getBandwidth()).thenReturn(2L); |
| Collection<Partition<BandwidthLimitingOperator>> partitions = Lists.newArrayList(); |
| |
| for (int i = 5; i-- > 0;) { |
| partitions.add(new DefaultPartition<BandwidthLimitingOperator>(operatorMock)); |
| } |
| |
| underTest.definePartitions(partitions, partitionContextMock); |
| verify(bandwidthManagerMock, times(2)).setBandwidth(5L); |
| } |
| |
| } |
| |