| /* |
| * 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.giraph.edge; |
| |
| import com.google.common.collect.Iterables; |
| import com.google.common.collect.Lists; |
| import org.apache.hadoop.io.DoubleWritable; |
| import org.apache.hadoop.io.LongWritable; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| import static org.apache.giraph.graph.TestVertexAndEdges.instantiateOutEdges; |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Tests {@link MultiRandomAccessOutEdges} implementations. |
| */ |
| public class TestMultiRandomAccessEdges { |
| /** {@link MultiRandomAccessOutEdges} classes to be tested. */ |
| private Collection<Class<? extends MultiRandomAccessOutEdges>> |
| edgesClasses = Lists.newArrayList(); |
| |
| @Before |
| public void setUp() { |
| edgesClasses.add(HashMultimapEdges.class); |
| } |
| |
| /** |
| * Ensures that all {@link MultiRandomAccessOutEdges} implementations |
| * correctly return edge values. |
| */ |
| @Test |
| public void testParallelEdges() { |
| for (Class<? extends MultiRandomAccessOutEdges> edgesClass : |
| edgesClasses) { |
| testParallelEdgesClass(edgesClass); |
| } |
| } |
| |
| private void testParallelEdgesClass( |
| Class<? extends MultiRandomAccessOutEdges> edgesClass) { |
| MultiRandomAccessOutEdges<LongWritable, DoubleWritable> edges = |
| (MultiRandomAccessOutEdges<LongWritable, DoubleWritable>) |
| instantiateOutEdges(edgesClass); |
| |
| // Initial edges list contains parallel edges. |
| List<Edge<LongWritable, DoubleWritable>> initialEdges = Lists.newArrayList( |
| EdgeFactory.create(new LongWritable(1), new DoubleWritable(1)), |
| EdgeFactory.create(new LongWritable(2), new DoubleWritable(2)), |
| EdgeFactory.create(new LongWritable(3), new DoubleWritable(3)), |
| EdgeFactory.create(new LongWritable(2), new DoubleWritable(20))); |
| |
| edges.initialize(initialEdges); |
| |
| assertEquals(2, |
| Iterables.size(edges.getAllEdgeValues(new LongWritable(2)))); |
| assertEquals(1, |
| Iterables.size(edges.getAllEdgeValues(new LongWritable(1)))); |
| assertEquals(0, |
| Iterables.size(edges.getAllEdgeValues(new LongWritable(42)))); |
| } |
| } |