TestNodeReqOptScorer.java

/**
 * Copyright 2014 National University of Ireland, Galway.
 *
 * This file is part of the SIREn project. Project and contact information:
 *
 *  https://github.com/rdelbru/SIREn
 *
 * Licensed 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.sindice.siren.search.node;

import static org.sindice.siren.analysis.MockSirenToken.node;
import static org.sindice.siren.search.AbstractTestSirenScorer.BooleanClauseBuilder.must;
import static org.sindice.siren.search.AbstractTestSirenScorer.BooleanClauseBuilder.should;
import static org.sindice.siren.search.AbstractTestSirenScorer.NodeBooleanQueryBuilder.nbq;

import java.io.IOException;

import org.junit.Test;
import org.sindice.siren.index.DocsAndNodesIterator;
import org.sindice.siren.index.codecs.RandomSirenCodec.PostingsFormatType;
import org.sindice.siren.search.AbstractTestSirenScorer;

public class TestNodeReqOptScorer extends AbstractTestSirenScorer {

  @Override
  protected void configure() throws IOException {
    this.setAnalyzer(AnalyzerType.TUPLE);
    this.setPostingsFormat(PostingsFormatType.RANDOM);
  }

  @Test
  public void testNextPositionWithOptionalTerm() throws Exception {
    this.addDocuments(
      "\"aaa bbb\" \"aaa ccc\" . \"aaa bbb ccc\" \"bbb ccc\" . ",
      "\"aaa\" \"aaa bbb\" . "
    );

    final NodeScorer scorer = this.getScorer(
      nbq(must("aaa"), should("bbb"))
    );

    assertTrue(scorer.nextCandidateDocument());
    assertEquals(0, scorer.doc());
    assertEquals(node(-1), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,0), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,1), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(1,0), scorer.node());
    assertFalse(scorer.nextNode());
    assertEquals(DocsAndNodesIterator.NO_MORE_NOD, scorer.node());

    assertTrue(scorer.nextCandidateDocument());
    assertEquals(1, scorer.doc());
    assertEquals(node(-1), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,0), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,1), scorer.node());
    assertFalse(scorer.nextNode());
    assertEquals(DocsAndNodesIterator.NO_MORE_NOD, scorer.node());

    assertEndOfStream(scorer);
  }

  @Test
  public void testScore() throws Exception {
    this.setPostingsFormat(PostingsFormatType.SIREN_10);
    this.addDocuments(
      "\"aaa bbb\" \"aaa ccc\" . \"aaa bbb ccc\" \"bbb ccc\" . ",
      "\"aaa\" \"aaa bbb\" . ",
      "\"aaa bbb\" \"bbb\" \"aaa bbb\" . "
    );

    final NodeScorer scorer = this.getScorer(
      nbq(must("aaa"), should("bbb"))
    );

    assertTrue(scorer.nextCandidateDocument());
    assertEquals(0, scorer.doc());
    assertEquals(node(-1), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,0), scorer.node());
    final float d0score00 = scorer.scoreInNode();
    assertTrue(scorer.nextNode());
    assertEquals(node(0,1), scorer.node());
    final float d0score01 = scorer.scoreInNode();
    assertTrue(d0score00 + " > " + d0score01, d0score00 > d0score01);
    assertTrue(scorer.nextNode());
    assertEquals(node(1,0), scorer.node());
    final float d0score10 = scorer.scoreInNode();
    assertTrue(d0score10 + " == " + d0score00, d0score10 == d0score00);
    assertFalse(scorer.nextNode());
    assertEquals(DocsAndNodesIterator.NO_MORE_NOD, scorer.node());

    assertTrue(scorer.nextCandidateDocument());
    assertEquals(1, scorer.doc());
    assertEquals(node(-1), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,0), scorer.node());
    final float d1score00 = scorer.scoreInNode();
    assertTrue(scorer.nextNode());
    assertEquals(node(0,1), scorer.node());
    final float d1score01 = scorer.scoreInNode();
    assertTrue(d1score01 + " > " + d1score00, d1score01 > d1score00);
    assertFalse(scorer.nextNode());
    assertEquals(DocsAndNodesIterator.NO_MORE_NOD, scorer.node());

    assertTrue(scorer.nextCandidateDocument());
    assertEquals(2, scorer.doc());
    assertEquals(node(-1), scorer.node());
    assertTrue(scorer.nextNode());
    assertEquals(node(0,0), scorer.node());
    final float d2score00 = scorer.scoreInNode();
    assertTrue(scorer.nextNode());
    assertEquals(node(0,2), scorer.node());
    final float d2score02 = scorer.scoreInNode();
    assertTrue(d2score00 + " == " + d2score02, d2score00 == d2score02);
    assertFalse(scorer.nextNode());
    assertEquals(DocsAndNodesIterator.NO_MORE_NOD, scorer.node());

    assertEndOfStream(scorer);
  }

}