ruta-core/src/test/java/org/apache/uima/ruta/rule/quantifier/QuantifierTest.java

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 * 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
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 * specific language governing permissions and limitations
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package org.apache.uima.ruta.rule.quantifier;

import java.util.List;

import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.tcas.Annotation;
import org.apache.uima.ruta.engine.Ruta;
import org.apache.uima.ruta.engine.RutaTestUtils;
import org.junit.Assert;
import org.junit.Test;

public class QuantifierTest {

  @Test
  public void testRightToLeftMinMaxReluctantToLiteral() throws Exception {

    JCas jcas = RutaTestUtils.getCAS("a b c d e.").getJCas();
    Assert.assertEquals("a b c d e.",
            Ruta.select(jcas, "\"a\" W[0,5]? @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("b c d e.",
            Ruta.select(jcas, "\"b\" W[0,5]? @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("c d e.",
            Ruta.select(jcas, "\"c\" W[0,5]? @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("d e.",
            Ruta.select(jcas, "\"d\" W[0,5]? @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("e.", Ruta.select(jcas, "\"e\" W[0,5]? @PERIOD;").get(0).getCoveredText());

    jcas.release();
  }

  @Test
  public void testRightToLeftMinMaxGreedyToLiteral() throws Exception {

    JCas jcas = RutaTestUtils.getCAS("a b c d e.").getJCas();
    Assert.assertEquals("a b c d e.",
            Ruta.select(jcas, "\"a\" W[0,4] @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("b c d e.",
            Ruta.select(jcas, "\"b\" W[0,3] @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("c d e.",
            Ruta.select(jcas, "\"c\" W[0,2] @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("d e.", Ruta.select(jcas, "\"d\" W[0,1] @PERIOD;").get(0).getCoveredText());
    Assert.assertEquals("e.", Ruta.select(jcas, "\"e\" W[0,0] @PERIOD;").get(0).getCoveredText());

    jcas.release();
  }

  @Test
  public void testReluctantGreedyInComposed() throws Exception {
    JCas jcas = RutaTestUtils.getCAS("a B B . a B . a .").getJCas();
    List<Annotation> select = Ruta.select(jcas, "SW (CW+?) PERIOD;");
    Assert.assertEquals(2, select.size());
  }

}