PennTreeUtilsTest.java

/*******************************************************************************
 * Copyright 2013
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universität Darmstadt
 * 
 * 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 de.tudarmstadt.ukp.csniper.webapp.search.tgrep;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

/**
 * @author Richard Eckart de Castilho
 */
public class PennTreeUtilsTest
{
	@Test
	public void testParseSerialize()
	{
		doTest("(S (NP a) (VP b) (PUNC .))");
		doTest("(ROOT (S (NP (PRP It)) (VP (VBZ is) (PP (IN for) (NP (NP (DT this) (NN reason)) " +
				"(SBAR (IN that) (S (NP (NN deconstruction)) (VP (VP (VBZ remains) (NP (NP " +
				"(DT a) (JJ fundamental) (NN threat)) (PP (TO to) (NP (NNP Marxism))))) (, ,) " +
				"(CC and) (VP (PP (IN by) (NP (NP (NN implication)) (PP (TO to) (NP (JJ other) " +
				"(ADJP (JJ culturalist) (CC and) (JJ contextualizing)) " +
				"(NNS approaches)))))))))))) (. .)))");
	}

	@Test
	public void testToText()
	{
	    PennTreeNode n = PennTreeUtils.parsePennTree(
	            "(ROOT (S (NP (PRP It)) (VP (VBZ is) (PP (IN for) (NP (NP (DT this) (NN reason)) " +
                "(SBAR (IN that) (S (NP (NN deconstruction)) (VP (VP (VBZ remains) (NP (NP " +
                "(DT a) (JJ fundamental) (NN threat)) (PP (TO to) (NP (NNP Marxism))))) (, ,) " +
                "(CC and) (VP (PP (IN by) (NP (NP (NN implication)) (PP (TO to) (NP (JJ other) " +
                "(ADJP (JJ culturalist) (CC and) (JJ contextualizing)) " +
                "(NNS approaches)))))))))))) (. .)))");
	    assertEquals("It is for this reason that deconstruction remains a fundamental threat to " +
	    		"Marxism , and by implication to other culturalist and contextualizing " +
	    		"approaches .", PennTreeUtils.toText(n));
	}
	
	private static void doTest(String aBracket)
	{
		String expected = aBracket;

		PennTreeNode n = PennTreeUtils.parsePennTree(expected);

		String actual = n.toString();

		assertEquals(expected, actual);
	}
	
	@Test
	public void testSelectDfs()
	{
		PennTreeNode n = PennTreeUtils.parsePennTree(
				"(ROOT (S (NP (PRP It)) (VP (VBZ is) (PP (IN for) (NP (NP (DT this) (NN reason)) " +
				"(SBAR (IN that) (S (NP (NN deconstruction)) (VP (VP (VBZ remains) (NP (NP " +
				"(DT a) (JJ fundamental) (NN threat)) (PP (TO to) (NP (NNP Marxism))))) (, ,) " +
				"(CC and) (VP (PP (IN by) (NP (NP (NN implication)) (PP (TO to) (NP (JJ other) " +
				"(ADJP (JJ culturalist) (CC and) (JJ contextualizing)) " +
				"(NNS approaches)))))))))))) (. .)))");
		System.out.println(PennTreeUtils.selectDfs(n, 1));
		System.out.println(PennTreeUtils.selectDfs(n, 2));
		System.out.println(PennTreeUtils.selectDfs(n, 3));
		System.out.println(PennTreeUtils.selectDfs(n, 4));
		System.out.println(PennTreeUtils.selectDfs(n, 5));
		System.out.println(PennTreeUtils.selectDfs(n, 6));
		System.out.println(PennTreeUtils.selectDfs(n, 7));
		System.out.println(PennTreeUtils.selectDfs(n, 8));
		System.out.println(PennTreeUtils.selectDfs(n, 9));
		System.out.println(PennTreeUtils.selectDfs(n, 10));
		System.out.println(PennTreeUtils.selectDfs(n, 11));
		System.out.println(PennTreeUtils.selectDfs(n, 12));
	}
}