org.eclipse.rdf4j.rio.n3.N3ParserTestCase Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Distribution License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*******************************************************************************/
package org.eclipse.rdf4j.rio.n3;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.eclipse.rdf4j.model.Statement;
import org.eclipse.rdf4j.model.util.Models;
import org.eclipse.rdf4j.query.BindingSet;
import org.eclipse.rdf4j.query.QueryLanguage;
import org.eclipse.rdf4j.query.TupleQueryResult;
import org.eclipse.rdf4j.repository.Repository;
import org.eclipse.rdf4j.repository.RepositoryConnection;
import org.eclipse.rdf4j.repository.sail.SailRepository;
import org.eclipse.rdf4j.rio.RDFFormat;
import org.eclipse.rdf4j.rio.RDFParseException;
import org.eclipse.rdf4j.rio.RDFParser;
import org.eclipse.rdf4j.rio.helpers.StatementCollector;
import org.eclipse.rdf4j.rio.ntriples.NTriplesParser;
import org.eclipse.rdf4j.sail.memory.MemoryStore;
/**
* JUnit test for the N3 parser that uses the tests that are available
* online.
*/
public abstract class N3ParserTestCase {
/*-----------*
* Constants *
*-----------*/
private static String BASE_URL = "http://www.w3.org/2000/10/swap/test/";
private static String MANIFEST_URL = "http://www.w3.org/2000/10/swap/test/n3parser.tests";
/*--------------------*
* Static initializer *
*--------------------*/
public TestSuite createTestSuite()
throws Exception
{
// Create test suite
TestSuite suite = new TestSuite(N3ParserTestCase.class.getName());
// Add the manifest to a repository and query it
Repository repository = new SailRepository(new MemoryStore());
repository.initialize();
RepositoryConnection con = repository.getConnection();
URL url = url(MANIFEST_URL);
con.add(url, base(MANIFEST_URL), RDFFormat.TURTLE);
// Add all positive parser tests to the test suite
String query = "SELECT testURI, inputURL, outputURL "
+ "FROM {testURI} rdf:type {n3test:PositiveParserTest}; "
+ " n3test:inputDocument {inputURL}; "
+ " n3test:outputDocument {outputURL} "
+ "USING NAMESPACE n3test = ";
TupleQueryResult queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query).evaluate();
while (queryResult.hasNext()) {
BindingSet bindingSet = queryResult.next();
String testURI = bindingSet.getValue("testURI").toString();
String inputURL = bindingSet.getValue("inputURL").toString();
String outputURL = bindingSet.getValue("outputURL").toString();
suite.addTest(new PositiveParserTest(testURI, inputURL, outputURL));
}
queryResult.close();
// Add all negative parser tests to the test suite
query = "SELECT testURI, inputURL " + "FROM {testURI} rdf:type {n3test:NegativeParserTest}; "
+ " n3test:inputDocument {inputURL} "
+ "USING NAMESPACE n3test = ";
queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query).evaluate();
while (queryResult.hasNext()) {
BindingSet bindingSet = queryResult.next();
String testURI = bindingSet.getValue("testURI").toString();
String inputURL = bindingSet.getValue("inputURL").toString();
suite.addTest(new NegativeParserTest(testURI, inputURL));
}
queryResult.close();
con.close();
repository.shutDown();
return suite;
}
protected abstract RDFParser createRDFParser();
/*--------------------------------*
* Inner class PositiveParserTest *
*--------------------------------*/
private class PositiveParserTest extends TestCase {
/*-----------*
* Variables *
*-----------*/
private URL inputURL;
private URL outputURL;
/*--------------*
* Constructors *
*--------------*/
public PositiveParserTest(String testURI, String inputURL, String outputURL)
throws MalformedURLException
{
super(testURI);
this.inputURL = url(inputURL);
this.outputURL = url(outputURL);
}
/*---------*
* Methods *
*---------*/
@Override
protected void runTest()
throws Exception
{
// Parse input data
RDFParser turtleParser = createRDFParser();
turtleParser.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
Set inputCollection = new LinkedHashSet();
StatementCollector inputCollector = new StatementCollector(inputCollection);
turtleParser.setRDFHandler(inputCollector);
InputStream in = inputURL.openStream();
turtleParser.parse(in, base(inputURL.toExternalForm()));
in.close();
// Parse expected output data
NTriplesParser ntriplesParser = new NTriplesParser();
ntriplesParser.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
Set outputCollection = new LinkedHashSet();
StatementCollector outputCollector = new StatementCollector(outputCollection);
ntriplesParser.setRDFHandler(outputCollector);
in = outputURL.openStream();
ntriplesParser.parse(in, base(outputURL.toExternalForm()));
in.close();
// Check equality of the two models
if (!Models.isomorphic(inputCollection, outputCollection)) {
System.err.println("===models not equal===");
// System.err.println("Expected: " + outputCollection);
// System.err.println("Actual : " + inputCollection);
// System.err.println("======================");
List missing = new LinkedList(outputCollection);
missing.removeAll(inputCollection);
List unexpected = new LinkedList(inputCollection);
unexpected.removeAll(outputCollection);
if (!missing.isEmpty()) {
System.err.println("Missing : " + missing);
}
if (!unexpected.isEmpty()) {
System.err.println("Unexpected: " + unexpected);
}
fail("models not equal");
}
}
} // end inner class PositiveParserTest
/*--------------------------------*
* Inner class NegativeParserTest *
*--------------------------------*/
private class NegativeParserTest extends TestCase {
/*-----------*
* Variables *
*-----------*/
private URL inputURL;
/*--------------*
* Constructors *
*--------------*/
public NegativeParserTest(String testURI, String inputURL)
throws MalformedURLException
{
super(testURI);
this.inputURL = url(inputURL);
}
/*---------*
* Methods *
*---------*/
@Override
protected void runTest() {
try {
// Try parsing the input; this should result in an error being
// reported.
RDFParser turtleParser = createRDFParser();
turtleParser.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
turtleParser.setRDFHandler(new StatementCollector());
InputStream in = inputURL.openStream();
turtleParser.parse(in, base(inputURL.toExternalForm()));
in.close();
fail("Parser parses erroneous data without reporting errors");
}
catch (RDFParseException e) {
// This is expected as the input file is incorrect RDF
}
catch (Exception e) {
fail("Error: " + e.getMessage());
}
}
} // end inner class NegativeParserTest
private static URL url(String uri)
throws MalformedURLException
{
if (!uri.startsWith("injar:"))
return new URL(uri);
int start = uri.indexOf(':') + 3;
int end = uri.indexOf('/', start);
String encoded = uri.substring(start, end);
try {
String jar = URLDecoder.decode(encoded, "UTF-8");
return new URL("jar:" + jar + '!' + uri.substring(end));
}
catch (UnsupportedEncodingException e) {
throw new AssertionError(e);
}
}
private static String base(String uri) {
if (!uri.startsWith("jar:"))
return uri;
int start = uri.indexOf(':') + 1;
int end = uri.lastIndexOf('!');
String jar = uri.substring(start, end);
try {
String encoded = URLEncoder.encode(jar, "UTF-8");
return "injar://" + encoded + uri.substring(end + 1);
}
catch (UnsupportedEncodingException e) {
throw new AssertionError(e);
}
}
}
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