package org.apache.lucene.search.spans;
/**
* Copyright 2004 The Apache Software Foundation
*
* 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.
*/
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.CheckHits;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import junit.framework.TestCase;
import java.io.IOException;
import java.util.Set;
import java.util.TreeSet;
public class TestSpans extends TestCase {
private IndexSearcher searcher;
public static final String field = "field";
public void setUp() throws Exception {
RAMDirectory directory = new RAMDirectory();
IndexWriter writer= new IndexWriter(directory, new WhitespaceAnalyzer(), true);
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < docFields.length; i++) {
Document doc = new Document();
doc.add(Field.Text(field, docFields[i]));
writer.addDocument(doc);
}
writer.close();
searcher = new IndexSearcher(directory);
}
private String[] docFields = {
"w1 w2 w3 w4 w5",
"w1 w3 w2 w3",
"w1 xx w2 yy w3",
"w1 w3 xx w2 yy w3",
""
};
public SpanTermQuery makeSpanTermQuery(String text) {
return new SpanTermQuery(new Term(field, text));
}
private void checkHits(Query query, int[] results) throws IOException {
CheckHits.checkHits(query, field, searcher, results, this);
}
public void orderedSlopTest3(int slop, int[] expectedDocs) throws IOException {
SpanTermQuery w1 = makeSpanTermQuery("w1");
SpanTermQuery w2 = makeSpanTermQuery("w2");
SpanTermQuery w3 = makeSpanTermQuery("w3");
boolean ordered = true;
SpanNearQuery snq = new SpanNearQuery( new SpanQuery[]{w1,w2,w3}, slop, ordered);
checkHits(snq, expectedDocs);
}
public void testSpanNearOrdered01() throws Exception {
orderedSlopTest3(0, new int[] {0});
}
public void testSpanNearOrdered02() throws Exception {
orderedSlopTest3(1, new int[] {0,1});
}
public void testSpanNearOrdered03() throws Exception {
orderedSlopTest3(2, new int[] {0,1,2});
}
public void testSpanNearOrdered04() throws Exception {
orderedSlopTest3(3, new int[] {0,1,2,3});
}
public void testSpanNearOrdered05() throws Exception {
orderedSlopTest3(4, new int[] {0,1,2,3});
}
}
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