| /** |
| * 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.storm.streams; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import org.apache.storm.shade.com.google.common.collect.Multimap; |
| import org.apache.storm.shade.org.jgrapht.DirectedGraph; |
| import org.apache.storm.shade.org.jgrapht.graph.DefaultDirectedGraph; |
| import org.apache.storm.streams.operations.aggregators.Count; |
| import org.apache.storm.streams.processors.AggregateProcessor; |
| import org.apache.storm.streams.processors.Processor; |
| import org.apache.storm.streams.windowing.TumblingWindows; |
| import org.apache.storm.streams.windowing.Window; |
| import org.apache.storm.task.OutputCollector; |
| import org.apache.storm.task.TopologyContext; |
| import org.apache.storm.topology.base.BaseWindowedBolt; |
| import org.apache.storm.tuple.Fields; |
| import org.apache.storm.tuple.Tuple; |
| import org.apache.storm.tuple.Values; |
| import org.apache.storm.windowing.TupleWindow; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.ArgumentCaptor; |
| import org.mockito.Mockito; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Unit test for {@link WindowedProcessorBolt} |
| */ |
| public class WindowedProcessorBoltTest { |
| TopologyContext mockTopologyContext; |
| OutputCollector mockOutputCollector; |
| WindowedProcessorBolt bolt; |
| Tuple mockTuple1; |
| Tuple mockTuple2; |
| Tuple mockTuple3; |
| DirectedGraph<Node, Edge> graph; |
| Multimap<String, ProcessorNode> mockStreamToProcessors; |
| |
| @Before |
| public void setUp() throws Exception { |
| mockTopologyContext = Mockito.mock(TopologyContext.class); |
| mockOutputCollector = Mockito.mock(OutputCollector.class); |
| mockTuple1 = Mockito.mock(Tuple.class); |
| mockTuple2 = Mockito.mock(Tuple.class); |
| mockTuple3 = Mockito.mock(Tuple.class); |
| setUpMockTuples(mockTuple1, mockTuple2, mockTuple3); |
| mockStreamToProcessors = Mockito.mock(Multimap.class); |
| } |
| |
| @Test |
| public void testEmit() throws Exception { |
| Window<?, ?> window = TumblingWindows.of(BaseWindowedBolt.Count.of(2)); |
| setUpWindowedProcessorBolt(new AggregateProcessor<>(new Count<>()), window); |
| bolt.execute(getMockTupleWindow(mockTuple1, mockTuple2, mockTuple3)); |
| ArgumentCaptor<Values> values = ArgumentCaptor.forClass(Values.class); |
| ArgumentCaptor<String> os = ArgumentCaptor.forClass(String.class); |
| Mockito.verify(mockOutputCollector, Mockito.times(2)).emit(os.capture(), values.capture()); |
| assertEquals("outputstream", os.getAllValues().get(0)); |
| assertEquals(new Values(3L), values.getAllValues().get(0)); |
| assertEquals("outputstream__punctuation", os.getAllValues().get(1)); |
| assertEquals(new Values(WindowNode.PUNCTUATION), values.getAllValues().get(1)); |
| } |
| |
| private void setUpWindowedProcessorBolt(Processor<?> processor, Window<?, ?> window) { |
| ProcessorNode node = new ProcessorNode(processor, "outputstream", new Fields("value")); |
| node.setWindowed(true); |
| Mockito.when(mockStreamToProcessors.get(Mockito.anyString())).thenReturn(Collections.singletonList(node)); |
| Mockito.when(mockStreamToProcessors.keySet()).thenReturn(Collections.singleton("inputstream")); |
| graph = new DefaultDirectedGraph<>(new StreamsEdgeFactory()); |
| graph.addVertex(node); |
| bolt = new WindowedProcessorBolt("bolt1", graph, Collections.singletonList(node), window); |
| bolt.setStreamToInitialProcessors(mockStreamToProcessors); |
| bolt.prepare(new HashMap<>(), mockTopologyContext, mockOutputCollector); |
| } |
| |
| private void setUpMockTuples(Tuple... tuples) { |
| for (Tuple tuple : tuples) { |
| Mockito.when(tuple.size()).thenReturn(1); |
| Mockito.when(tuple.getValue(0)).thenReturn(100); |
| Mockito.when(tuple.getSourceComponent()).thenReturn("bolt0"); |
| Mockito.when(tuple.getSourceStreamId()).thenReturn("inputstream"); |
| } |
| } |
| |
| private TupleWindow getMockTupleWindow(Tuple... tuples) { |
| TupleWindow tupleWindow = Mockito.mock(TupleWindow.class); |
| Mockito.when(tupleWindow.get()).thenReturn(Arrays.asList(tuples)); |
| return tupleWindow; |
| } |
| } |