/*
* 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.tinkerpop.gremlin.hadoop.structure.io;
import org.apache.tinkerpop.gremlin.FeatureRequirementSet;
import org.apache.tinkerpop.gremlin.structure.T;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.apache.tinkerpop.gremlin.structure.VertexProperty;
import org.apache.tinkerpop.gremlin.structure.util.star.StarGraph;
import org.apache.tinkerpop.gremlin.util.iterator.IteratorUtils;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.util.HashSet;
import java.util.Set;
import static org.junit.Assert.assertEquals;
/**
* @author Marko A. Rodriguez (http://markorodriguez.com)
*/
public class VertexWritableTest {
private static VertexWritable byteClone(final VertexWritable vertexWritable) {
try {
final VertexWritable clone = new VertexWritable();
final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
vertexWritable.write(new DataOutputStream(outputStream));
outputStream.flush();
clone.readFields(new DataInputStream(new ByteArrayInputStream(outputStream.toByteArray())));
return clone;
} catch (final Exception e) {
throw new IllegalStateException(e.getMessage(), e);
}
}
@Test
public void shouldHashAndEqualCorrectly() {
final StarGraph graph = StarGraph.open();
final Vertex v = graph.addVertex(T.id, 1, T.label, Vertex.DEFAULT_LABEL);
final Set<VertexWritable> set = new HashSet<>();
for (int i = 0; i < 100; i++) {
set.add(new VertexWritable(v));
}
assertEquals(1, set.size());
}
@Test
public void shouldHaveEqualVertexWritableAndInternalVertex() throws Exception {
final StarGraph graph = StarGraph.open();
final Vertex v = graph.addVertex(T.id, 1, T.label, Vertex.DEFAULT_LABEL);
final VertexWritable vw = new VertexWritable(v);
assertEquals(vw, vw);
assertEquals(vw, byteClone(vw));
assertEquals(v, byteClone(vw).get());
}
@Test
@FeatureRequirementSet(FeatureRequirementSet.Package.VERTICES_ONLY)
public void shouldConstructVertexWritableWithCorrectByteRepresentation() {
final StarGraph graph = StarGraph.open();
final Vertex v = graph.addVertex(T.id, 1, T.label, Vertex.DEFAULT_LABEL, "test", "123");
v.property(VertexProperty.Cardinality.list, "name", "marko", "acl", "private");
final VertexWritable vw = byteClone(new VertexWritable(v));
assertEquals(v.id(), vw.get().id());
assertEquals(v.label(), vw.get().label());
assertEquals("123", vw.get().value("test"));
assertEquals(2, IteratorUtils.count(vw.get().properties()));
assertEquals("marko", vw.get().value("name"));
assertEquals("private", vw.get().property("name").value("acl"));
}
}