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373 lines
13 KiB
373 lines
13 KiB
// WebStructureGraphTest.java
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// Copyright 2017 by luccioman; https://github.com/luccioman
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.peers.graphics;
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import java.net.MalformedURLException;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import org.junit.Assert;
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import org.junit.Test;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.peers.graphics.WebStructureGraph.LearnObject;
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import net.yacy.peers.graphics.WebStructureGraph.StructureEntry;
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/**
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* Unit tests for {@link WebStructureGraph}
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*
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* @author luccioman
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*
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*/
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public class WebStructureGraphTest {
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/**
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* Most basic out going references unit test
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*/
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@Test
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public void testOutgoingReferences() throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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final DigestURL source = new DigestURL("http://source.net/index.html");
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final String sourceHash = source.hosthash();
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final Set<DigestURL> targets = new HashSet<>();
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final DigestURL target = new DigestURL("http://target.com/index.html");
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final String targetHash = target.hosthash();
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targets.add(target);
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LearnObject lro = new LearnObject(source, targets);
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graph.learnrefs(lro);
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/* Check that reference from the exact source URL is retrieved from structure */
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StructureEntry outRefs = graph.outgoingReferences(sourceHash);
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Assert.assertNotNull(outRefs);
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Assert.assertEquals("source.net", outRefs.hostname);
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Assert.assertNotNull(outRefs.references);
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Assert.assertEquals(1, outRefs.references.size());
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Assert.assertEquals(Integer.valueOf(1), outRefs.references.get(targetHash));
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/* Check that reference from the host name URL is retrieved from structure */
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outRefs = graph.outgoingReferences(new DigestURL("http://source.net").hosthash());
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Assert.assertNotNull(outRefs);
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Assert.assertEquals("source.net", outRefs.hostname);
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Assert.assertNotNull(outRefs.references);
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Assert.assertEquals(1, outRefs.references.size());
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Assert.assertEquals(Integer.valueOf(1), outRefs.references.get(targetHash));
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} finally {
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graph.close();
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}
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}
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/**
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* Out going references from one source document to different resources on the same target host
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*/
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@Test
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public void testOutgoingFromOneToMultipleSameTargeHost() throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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final DigestURL source = new DigestURL("http://source.net/index.html");
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final String sourceHash = source.hosthash();
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final Set<DigestURL> targets = new HashSet<>();
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final DigestURL indexTarget = new DigestURL("http://target.com/index.html");
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targets.add(indexTarget);
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final DigestURL pathTarget = new DigestURL("http://target.com/path/doc.html");
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targets.add(pathTarget);
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final DigestURL queryTarget = new DigestURL("http://target.com/path/query?param=value");
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targets.add(queryTarget);
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LearnObject lro = new LearnObject(source, targets);
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graph.learnrefs(lro);
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/* Check that accumulated references from the host name URL is retrieved from structure */
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StructureEntry outRefs = graph.outgoingReferences(sourceHash);
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Assert.assertNotNull(outRefs);
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Assert.assertEquals("source.net", outRefs.hostname);
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Assert.assertNotNull(outRefs.references);
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/* One accumulated host target reference */
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Assert.assertEquals(1, outRefs.references.size());
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/* 3 accumulated links to that target host */
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Assert.assertEquals(Integer.valueOf(3), outRefs.references.get(indexTarget.hosthash()));
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} finally {
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graph.close();
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}
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}
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/**
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* Out going references by host name
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*/
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@Test
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public void outgoingReferencesByHostName() throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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final DigestURL httpSource = new DigestURL("http://source.net/index.html");
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Set<DigestURL> targets = new HashSet<>();
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final DigestURL indexTarget = new DigestURL("http://target.com/index.html");
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targets.add(indexTarget);
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LearnObject lro = new LearnObject(httpSource, targets);
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graph.learnrefs(lro);
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final DigestURL httpsSource = new DigestURL("https://source.net/index.html");
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targets = new HashSet<>();
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final DigestURL pathTarget = new DigestURL("http://target.com/path");
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targets.add(pathTarget);
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lro = new LearnObject(httpsSource, targets);
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graph.learnrefs(lro);
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final DigestURL otherPortSource = new DigestURL("https://source.net:8080/index.html");
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targets = new HashSet<>();
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final DigestURL queryTarget = new DigestURL("http://target.com/query?param=value");
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targets.add(queryTarget);
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lro = new LearnObject(otherPortSource, targets);
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graph.learnrefs(lro);
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/* Check that accumulated references from the host name is retrieved from structure */
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Map<String, Integer> outRefs = graph.outgoingReferencesByHostName("source.net");
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Assert.assertNotNull(outRefs);
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Assert.assertEquals(1, outRefs.size());
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Assert.assertEquals(new DigestURL("http://target.com").hosthash(), outRefs.keySet().iterator().next());
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Assert.assertEquals(Integer.valueOf(3), outRefs.values().iterator().next());
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/* Check that accumulated references from unknown host name is empty */
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outRefs = graph.outgoingReferencesByHostName("test.net");
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Assert.assertNotNull(outRefs);
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Assert.assertTrue(outRefs.isEmpty());
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} finally {
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graph.close();
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}
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}
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/**
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* Most basic incoming references unit test
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*/
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@Test
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public void testIncomingReferences() throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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final DigestURL source = new DigestURL("http://source.net/index.html");
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final String sourceHash = source.hosthash();
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final Set<DigestURL> targets = new HashSet<>();
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final DigestURL target = new DigestURL("http://target.com/index.html");
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final String targetHash = target.hosthash();
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targets.add(target);
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LearnObject lro = new LearnObject(source, targets);
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graph.learnrefs(lro);
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/* Check that reference to the exact target URL is retrieved from structure */
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StructureEntry inRefs = graph.incomingReferences(targetHash);
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Assert.assertNotNull(inRefs);
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Assert.assertEquals("target.com", inRefs.hostname);
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Assert.assertNotNull(inRefs.references);
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Assert.assertEquals(1, inRefs.references.size());
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Assert.assertEquals(Integer.valueOf(1), inRefs.references.get(sourceHash));
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/* Check that reference to the host name target URL is retrieved from structure */
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inRefs = graph.incomingReferences(new DigestURL("http://target.com").hosthash());
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Assert.assertNotNull(inRefs);
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Assert.assertEquals("target.com", inRefs.hostname);
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Assert.assertNotNull(inRefs.references);
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Assert.assertEquals(1, inRefs.references.size());
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Assert.assertEquals(Integer.valueOf(1), inRefs.references.get(sourceHash));
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} finally {
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graph.close();
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}
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}
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/**
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* Incoming references from multiple sources on the same host to one target URL
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*/
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@Test
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public void testIncomingReferencesFromMultipleSourcesOnOneHost() throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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final DigestURL indexSource = new DigestURL("http://source.net/index.html");
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final String sourceHash = indexSource.hosthash();
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Set<DigestURL> targets = new HashSet<>();
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final DigestURL target = new DigestURL("http://target.com/index.html");
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final String targetHash = target.hosthash();
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targets.add(target);
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LearnObject lro = new LearnObject(indexSource, targets);
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graph.learnrefs(lro);
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final DigestURL pathSource = new DigestURL("http://source.net/path/doc.html");
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targets = new HashSet<>();
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targets.add(target);
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lro = new LearnObject(pathSource, targets);
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graph.learnrefs(lro);
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final DigestURL querySource = new DigestURL("http://source.net/query?param=value");
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targets = new HashSet<>();
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targets.add(target);
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lro = new LearnObject(querySource, targets);
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graph.learnrefs(lro);
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/* Check that reference to the exact target URL is retrieved from structure */
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StructureEntry inRefs = graph.incomingReferences(targetHash);
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Assert.assertNotNull(inRefs);
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Assert.assertEquals("target.com", inRefs.hostname);
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Assert.assertNotNull(inRefs.references);
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/* One accumulated host source reference */
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Assert.assertEquals(1, inRefs.references.size());
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/* 3 accumulated links from that host */
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Assert.assertEquals(Integer.valueOf(3), inRefs.references.get(sourceHash));
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} finally {
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graph.close();
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}
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}
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/**
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* Incoming references from multiple sources on the same host to one target
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* URL accumulated between old and new structure
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*/
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@Test
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public void testIncomingReferencesFromNewAndOld() throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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final DigestURL indexSource = new DigestURL("http://source.net/index.html");
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final String sourceHash = indexSource.hosthash();
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Set<DigestURL> targets = new HashSet<>();
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final DigestURL target = new DigestURL("http://target.com/index.html");
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final String targetHash = target.hosthash();
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targets.add(target);
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LearnObject lro = new LearnObject(indexSource, targets);
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graph.learnrefs(lro);
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/* Backup learned reference to the old structure */
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graph.joinOldNew();
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final DigestURL pathSource = new DigestURL("http://source.net/path/doc.html");
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targets = new HashSet<>();
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targets.add(target);
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lro = new LearnObject(pathSource, targets);
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graph.learnrefs(lro);
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final DigestURL querySource = new DigestURL("http://source.net/query?param=value");
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targets = new HashSet<>();
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targets.add(target);
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lro = new LearnObject(querySource, targets);
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graph.learnrefs(lro);
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/* Check that reference to the exact target URL is retrieved from structure */
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StructureEntry inRefs = graph.incomingReferences(targetHash);
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Assert.assertNotNull(inRefs);
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Assert.assertEquals("target.com", inRefs.hostname);
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Assert.assertNotNull(inRefs.references);
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/* One accumulated host source reference */
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Assert.assertEquals(1, inRefs.references.size());
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/* 3 accumulated links from that host */
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Assert.assertEquals(Integer.valueOf(3), inRefs.references.get(sourceHash));
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} finally {
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graph.close();
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}
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}
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/**
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* Simple performance measurements with a test structure filled to its limits.
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*/
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public static void main(String args[]) throws MalformedURLException {
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WebStructureGraph graph = new WebStructureGraph(null);
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try {
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long beginTime = System.nanoTime();
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/* Generate maxhosts structure entries */
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for(int i = 0; i < WebStructureGraph.maxhosts; i++) {
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final DigestURL source = new DigestURL("http://source" + i + ".net/index.html");
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final Set<DigestURL> targets = new HashSet<>();
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/* Generate maxref targets */
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for(int j = 0; j < WebStructureGraph.maxref; j++) {
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final DigestURL target = new DigestURL("http://target" + String.valueOf(j) + ".com/index.html");
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targets.add(target);
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}
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LearnObject lro = new LearnObject(source, targets);
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graph.learnrefs(lro);
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}
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long endTime = System.nanoTime();
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System.out.println("testPerfs test structure initialisation time : " + ((endTime - beginTime) / 1000000000) + " seconds");
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beginTime = System.nanoTime();
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/* Loop and look for incoming references on each sample generated target */
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for(int j = 0; j < WebStructureGraph.maxref; j++) {
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String targetHash = new DigestURL("http://target" + j + ".com/index.html").hosthash();
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graph.incomingReferences(targetHash);
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}
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endTime = System.nanoTime();
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System.out.println("testPerfs incomingReferences running time : " + ((endTime - beginTime) / 1000000000) + " seconds");
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beginTime = System.nanoTime();
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/* Loop and look for outgoing references on each sample generated source */
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for(int i = 0; i < WebStructureGraph.maxhosts; i++) {
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String sourceHash = new DigestURL("http://source" + i + ".net/index.html").hosthash();
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graph.outgoingReferences(sourceHash);
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}
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endTime = System.nanoTime();
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System.out.println("testPerfs outgoingReferences running time : " + ((endTime - beginTime) / 1000000000) + " seconds");
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beginTime = System.nanoTime();
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/* Loop and look for host hashes from host name on each sample generated source */
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for(int i = 0; i < WebStructureGraph.maxhosts; i++) {
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graph.hostName2HostHashes("source" + i + ".net");
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}
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endTime = System.nanoTime();
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System.out.println("testPerfs hostName2HostHashes running time : " + ((endTime - beginTime) / 1000000000) + " seconds");
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} finally {
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graph.close();
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ConcurrentLog.shutdown();
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}
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}
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}
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