SPARQLUpdateWriterTest.java example

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rdfbean-master
package com.mysema.rdfbean.model.io;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import org.junit.Test;

import com.mysema.rdfbean.TEST;
import com.mysema.rdfbean.model.BID;
import com.mysema.rdfbean.model.ID;
import com.mysema.rdfbean.model.LIT;
import com.mysema.rdfbean.model.RDF;
import com.mysema.rdfbean.model.STMT;
import com.mysema.rdfbean.model.UID;
import com.mysema.rdfbean.model.XSD;

public class SPARQLUpdateWriterTest {

    private final SPARQLUpdateWriter writer = new SPARQLUpdateWriter(new UID(TEST.NS), false);

    @Test
    public void Handle() {
        List<UID> predicates = new ArrayList<UID>(10);
        for (int i = 0; i < 10; i++) {
            predicates.add(new UID(TEST.NS, "pred" + i));
        }

        List<STMT> stmts = new ArrayList<STMT>(140);
        for (int i = 0; i < 14; i++) {
            ID sub = new UID(TEST.NS, "e" + UUID.randomUUID());
            stmts.add(new STMT(sub, predicates.get(0), new LIT(UUID.randomUUID().toString())));
            stmts.add(new STMT(sub, predicates.get(1), new LIT("1", XSD.intType)));
            stmts.add(new STMT(sub, predicates.get(2), sub));
            stmts.add(new STMT(sub, predicates.get(3), new BID()));
            stmts.add(new STMT(sub, predicates.get(4), new LIT(UUID.randomUUID().toString())));
            stmts.add(new STMT(sub, predicates.get(5), new LIT("2", XSD.intType)));
            stmts.add(new STMT(sub, predicates.get(6), sub));
            stmts.add(new STMT(sub, predicates.get(7), new BID()));
            stmts.add(new STMT(sub, predicates.get(8), new LIT(UUID.randomUUID().toString())));
            stmts.add(new STMT(sub, predicates.get(9), new LIT("3", XSD.intType)));
        }

        writer.begin();
        for (STMT stmt : stmts) {
            writer.handle(stmt);
        }
        writer.end();

        // System.out.println(writer.toString());
        String str = writer.toString();
        assertTrue(str.contains(" ; ns1:pred1"));
        assertTrue(str.contains("PREFIX ns1: <http://semantics.mysema.com/test#>"));
        assertTrue(str.contains("PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>"));
        assertTrue(str.contains("\"3\"^^xsd:int"));
    }

    @Test
    public void RDFType_as_rdf_type() {
        writer.begin();
        writer.handle(new STMT(RDF.type, RDF.type, RDF.Property));
        writer.end();

        assertFalse(writer.toString().contains(" a "));
        assertTrue(writer.toString().contains("rdf:type rdf:type"));
    }
}