/**
    * 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.commons.rdf.jena;
  
  import static org.junit.Assert.*;
  
  import org.apache.commons.rdf.api.BlankNode;
  import org.apache.commons.rdf.api.RDFTerm;
  import org.apache.jena.graph.Node;
  import org.apache.jena.graph.NodeFactory;
  import org.apache.jena.sparql.core.Quad;
  import org.junit.Test;
  
  public class GeneralizedRDFQuadTest {
  
      private final JenaRDF jena = new JenaRDF();
  
      @Test
      public void bnodeProperty() throws Exception {
          final BlankNode b1 = jena.createBlankNode("b1");
          final JenaIRI ex1 = jena.createIRI("http://example.com/ex1");
          final JenaIRI ex2 = jena.createIRI("http://example.com/ex2");
          final JenaIRI ex3 = jena.createIRI("http://example.com/ex3");
  
          final JenaGeneralizedQuadLike q = jena.createGeneralizedQuad(ex1, b1, ex2, ex3);
          assertEquals(ex1, q.getSubject());
          assertEquals(ex2, q.getObject());
          assertEquals(b1, q.getPredicate()); // it's a bnode!
          assertEquals(ex3, q.getGraphName().get());
          assertTrue(q.asJenaQuad().getPredicate().isBlank());
      }
  
      @Test
      public void literalPredicate() throws Exception {
          final JenaIRI ex1 = jena.createIRI("http://example.com/ex1");
          final JenaIRI ex2 = jena.createIRI("http://example.com/ex2");
          final JenaIRI ex3 = jena.createIRI("http://example.com/ex3");
          final JenaLiteral lit = jena.createLiteral("Hello");
  
          final JenaGeneralizedQuadLike q = jena.createGeneralizedQuad(ex1, lit, ex2, ex3);
          assertEquals(ex1, q.getSubject());
          assertEquals(ex2, q.getObject());
          assertEquals(lit, q.getPredicate()); // it's a literal!
          assertEquals(ex3, q.getGraphName().get());
          assertTrue(q.asJenaQuad().getPredicate().isLiteral());
      }
  
  
      @Test
      public void literalSubject() throws Exception {
          final JenaIRI ex1 = jena.createIRI("http://example.com/ex1");
          final JenaIRI ex2 = jena.createIRI("http://example.com/ex2");
          final JenaIRI ex3 = jena.createIRI("http://example.com/ex3");
          final JenaLiteral lit = jena.createLiteral("Hello");
  
          final JenaGeneralizedQuadLike q = jena.createGeneralizedQuad(lit, ex1, ex2, ex3);
          assertEquals(lit, q.getSubject()); // it's a literal!
          assertEquals(ex1, q.getPredicate());
          assertEquals(ex2, q.getObject());
          assertEquals(ex3, q.getGraphName().get());
          assertTrue(q.asJenaQuad().getSubject().isLiteral());
      }
  
      @Test
      public void literalSubjectDefaultGraphGen() throws Exception {
          final JenaIRI ex1 = jena.createIRI("http://example.com/ex1");
          final JenaIRI ex2 = jena.createIRI("http://example.com/ex2");
          // No need to cast to JenaIRI
          final JenaRDFTerm defG = jena.asRDFTerm(Quad.defaultGraphNodeGenerated);
          final JenaLiteral lit = jena.createLiteral("Hello");
  
          final JenaGeneralizedQuadLike q = jena.createGeneralizedQuad(lit, ex1, ex2, defG);
          assertEquals(lit, q.getSubject()); // it's a literal!
          assertEquals(ex1, q.getPredicate());
          assertEquals(ex2, q.getObject());
          assertTrue(q.asJenaQuad().getSubject().isLiteral());
          assertFalse(q.getGraphName().isPresent());
          assertTrue(q.asJenaQuad().isDefaultGraph());
      }
  
      @Test
      public void asGeneralizedQuad() throws Exception {
          final Node s = NodeFactory.createLiteral("Hello");
          final Node p = NodeFactory.createBlankNode();
         final Node o = NodeFactory.createURI("http://example.com/ex");
         final Node g = Quad.defaultGraphIRI;
         final Quad jq = Quad.create(g, s, p, o);
         final JenaQuadLike<RDFTerm> q = jena.asGeneralizedQuad(jq);
         assertEquals(jena.createLiteral("Hello"), q.getSubject());
         assertEquals(jena.asRDFTerm(p), q.getPredicate());
         assertEquals(jena.createIRI("http://example.com/ex"), q.getObject());
         assertFalse(q.getGraphName().isPresent());
     }
 
     @Test
     public void literalGraph() throws Exception {
         final JenaIRI ex1 = jena.createIRI("http://example.com/ex1");
         final JenaIRI ex2 = jena.createIRI("http://example.com/ex2");
         final JenaIRI ex3 = jena.createIRI("http://example.com/ex3");
         final JenaLiteral lit = jena.createLiteral("Hello");
 
         final JenaGeneralizedQuadLike q = jena.createGeneralizedQuad(ex1, ex2, ex3, lit);
         assertEquals(ex1, q.getSubject());
         assertEquals(ex2, q.getPredicate());
         assertEquals(ex3, q.getObject());
         assertEquals(lit, q.getGraphName().get()); // it's a literal!
         assertTrue(q.asJenaQuad().getGraph().isLiteral());
     }
 
 
 
 }