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barthanssensbarthanssens
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Added unit tests
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-24
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‎src/test/java/org/linkeddatafragments/datasource/HdtDataSourceTest.java

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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package test.java.org.linkeddatafragments.datasource;
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import com.google.gson.JsonObject;
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import com.hp.hpl.jena.rdf.model.Model;
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import com.hp.hpl.jena.rdf.model.ModelFactory;
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import com.hp.hpl.jena.rdf.model.Property;
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import com.hp.hpl.jena.rdf.model.Resource;
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import java.io.File;
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import java.io.InputStream;
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import java.nio.file.Files;
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import org.junit.After;
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import org.junit.AfterClass;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.linkeddatafragments.datasource.DataSourceFactory;
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import org.linkeddatafragments.datasource.IDataSource;
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import org.linkeddatafragments.datasource.TriplePatternFragment;
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import org.rdfhdt.hdt.enums.RDFNotation;
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import org.rdfhdt.hdt.hdt.HDT;
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import org.rdfhdt.hdt.hdt.HDTManager;
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import org.rdfhdt.hdt.options.HDTSpecification;
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/**
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*
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* @author Bart Hanssens <[email protected]>
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*/
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public class HdtDataSourceTest {
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private static IDataSource hdt;
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private static File hdtfile;
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@BeforeClass
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public static void setUpClass() throws Exception {
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// HDT does not seem to support an InputReader, so write to temp file
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InputStream in = ClassLoader.getSystemResourceAsStream("demo.nt");
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String tmpdir = System.getProperty("java.io.tmpdir");
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File temp = new File(tmpdir, "ldf-jena-test-hdt.ttl");
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Files.copy(in, temp.toPath());
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HDT mgr = HDTManager.generateHDT(temp.getAbsolutePath(), null,
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RDFNotation.NTRIPLES, new HDTSpecification(), null);
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hdtfile = new File(tmpdir, "ldf-hdt-test");
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mgr.saveToHDT(hdtfile.getAbsolutePath(), null);
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temp.getAbsoluteFile().delete();
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// Everything is in place, now create the LDF datasource
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JsonObject config = new JsonObject();
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config.addProperty("title", "hdt test");
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config.addProperty("description", "hdt test");
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config.addProperty("type", DataSourceFactory.HDT);
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JsonObject settings = new JsonObject();
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settings.addProperty("file", hdtfile.getAbsolutePath());
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config.add("settings", settings);
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hdt = DataSourceFactory.create(config);
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}
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@AfterClass
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public static void tearDownClass() throws Exception {
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if (hdtfile != null) {
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hdtfile.delete();
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}
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}
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@Before
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public void setUp() throws Exception {
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}
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/**
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* Check if estimate makes sense
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*
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*/
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@Test
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public void testEstimate() {
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Model model = ModelFactory.createDefaultModel();
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Resource subj = model.createResource("http://data.gov.be/catalog/ckanvl");
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Property pred = null;
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Resource obj = null;
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long offset = 0;
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long limit = 50;
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TriplePatternFragment fragment =
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hdt.getFragment(subj, pred, obj, offset, limit);
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long totalSize = fragment.getTotalSize();
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Assert.assertTrue("Estimate is fake: " + totalSize, totalSize != 51);
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}
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@After
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public void tearDown() throws Exception {
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}
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}

‎src/test/java/org/linkeddatafragments/datasource/JenaTDBDataSourceTest.java

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package test.java.org.linkeddatafragments.datasource;
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import com.google.gson.JsonObject;
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import com.hp.hpl.jena.query.Dataset;
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import com.hp.hpl.jena.rdf.model.Model;
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import com.hp.hpl.jena.rdf.model.ModelFactory;
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import com.hp.hpl.jena.rdf.model.Property;
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import com.hp.hpl.jena.rdf.model.Resource;
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import com.hp.hpl.jena.tdb.TDBFactory;
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import java.io.File;
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import java.io.InputStream;
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import org.apache.jena.riot.Lang;
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import org.apache.jena.riot.RDFDataMgr;
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import org.junit.After;
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import org.junit.AfterClass;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.linkeddatafragments.datasource.DataSourceFactory;
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import org.linkeddatafragments.datasource.IDataSource;
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import org.linkeddatafragments.datasource.TriplePatternFragment;
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*/
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public class JenaTDBDataSourceTest {
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private static IDataSource tdb;
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private static Dataset dataset;
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private static File jena;
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private final static String PREFIX = "http://test.ldf.org/";
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private static Dataset dataset;
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@BeforeClass
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public static void setUpClass() throws Exception {
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jena.mkdir();
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dataset = TDBFactory.createDataset(jena.getAbsolutePath());
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Model model = dataset.getDefaultModel();
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InputStream in = ClassLoader.getSystemResourceAsStream("demo.nt");
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RDFDataMgr.read(model, in, Lang.NTRIPLES);
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model.commit();
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// Everything is in place, now create the LDF datasource
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JsonObject config = new JsonObject();
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config.addProperty("title", "jena test");
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config.addProperty("description", "jena tdb test");
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}
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@Before
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public void setUp() throws Exception {
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Model model = dataset.getDefaultModel();
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// Generate a set of statements
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int subjs = 153;
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int preds = 29;
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int objs = 17;
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for (int s = 0; s < subjs; s++) {
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Resource subj = model.createResource(PREFIX + "s/" + s);
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for (int p = 0; p < preds ; p++) {
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Property pred = model.createProperty(PREFIX + "p/" + p);
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for (int o = 0; o < objs ; o++) {
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Resource obj = model.createResource(PREFIX + "o/" + o);
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model.add(subj, pred, obj);
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}
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}
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}
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model.commit();
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public void setUp() throws Exception {
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}
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/**
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*/
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@Test
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public void testEstimate() {
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Model model = dataset.getDefaultModel();
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Model model = ModelFactory.createDefaultModel();
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Resource subj = model.createResource(PREFIX + "s/1");
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Resource subj = model.createResource("http://data.gov.be/catalog/ckanvl");
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Property pred = null;
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Resource obj = null;
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