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19 package org.apache.giraph.edge;
20
21 import com.google.common.collect.Lists;
22 import org.apache.hadoop.io.DoubleWritable;
23 import org.apache.hadoop.io.LongWritable;
24 import org.junit.Before;
25 import org.junit.Test;
26
27 import java.util.Collection;
28 import java.util.List;
29
30 import static org.apache.giraph.graph.TestVertexAndEdges.instantiateOutEdges;
31 import static org.junit.Assert.assertEquals;
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35
36 public class TestMultiGraphEdges {
37
38 private Collection<Class<? extends OutEdges>> edgesClasses =
39 Lists.newArrayList();
40
41 @Before
42 public void setUp() {
43 edgesClasses.add(ByteArrayEdges.class);
44 edgesClasses.add(ArrayListEdges.class);
45 edgesClasses.add(HashMultimapEdges.class);
46 edgesClasses.add(LongDoubleArrayEdges.class);
47 }
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52
53 @Test
54 public void testParallelEdges() {
55 for (Class<? extends OutEdges> edgesClass : edgesClasses) {
56 testParallelEdgesClass(edgesClass);
57 }
58 }
59
60 private void testParallelEdgesClass(
61 Class<? extends OutEdges> edgesClass) {
62 OutEdges<LongWritable, DoubleWritable> edges =
63 instantiateOutEdges(edgesClass);
64
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66 List<Edge<LongWritable, DoubleWritable>> initialEdges = Lists.newArrayList(
67 EdgeFactory.create(new LongWritable(1), new DoubleWritable(1)),
68 EdgeFactory.create(new LongWritable(2), new DoubleWritable(2)),
69 EdgeFactory.create(new LongWritable(3), new DoubleWritable(3)),
70 EdgeFactory.create(new LongWritable(2), new DoubleWritable(20)));
71
72 edges.initialize(initialEdges);
73
74
75 assertEquals(4, edges.size());
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78 edges.add(EdgeFactory.create(new LongWritable(3), new DoubleWritable(30)));
79 assertEquals(5, edges.size());
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83 edges.remove(new LongWritable(2));
84 assertEquals(3, edges.size());
85 }
86 }