File	Doc	Category	Size	Date	Package
TestSpellChecker.java	API Doc	Apache Lucene 2.2.0	4375	Sat Jun 16 22:21:02 BST 2007	org.apache.lucene.search.spell

TestSpellChecker

• java.lang.Object
  • junit.framework.Assert
    • junit.framework.TestCase

Fields Summary
private SpellChecker	spellChecker
private Directory	userindex
private Directory	spellindex

Constructors Summary

Methods Summary
private void	addwords(org.apache.lucene.index.IndexReader r, java.lang.String field) long time = System.currentTimeMillis(); spellChecker.indexDictionary(new LuceneDictionary(r, field)); time = System.currentTimeMillis() - time; //System.out.println("time to build " + field + ": " + time);
private int	numdoc() IndexReader rs = IndexReader.open(spellindex); int num = rs.numDocs(); assertTrue(num != 0); //System.out.println("num docs: " + num); rs.close(); return num;
protected void	setUp() super.setUp(); //create a user index userindex = new RAMDirectory(); IndexWriter writer = new IndexWriter(userindex, new SimpleAnalyzer(), true); for (int i = 0; i < 1000; i++) { Document doc = new Document(); doc.add(new Field("field1", English.intToEnglish(i), Field.Store.YES, Field.Index.TOKENIZED)); doc.add(new Field("field2", English.intToEnglish(i + 1), Field.Store.YES, Field.Index.TOKENIZED)); // + word thousand writer.addDocument(doc); } writer.close(); // create the spellChecker spellindex = new RAMDirectory(); spellChecker = new SpellChecker(spellindex);
public void	testBuild() IndexReader r = IndexReader.open(userindex); spellChecker.clearIndex(); addwords(r, "field1"); int num_field1 = this.numdoc(); addwords(r, "field2"); int num_field2 = this.numdoc(); assertEquals(num_field2, num_field1 + 1); // test small word String[] similar = spellChecker.suggestSimilar("fvie", 2); assertEquals(1, similar.length); assertEquals(similar[0], "five"); similar = spellChecker.suggestSimilar("five", 2); assertEquals(1, similar.length); assertEquals(similar[0], "nine"); // don't suggest a word for itself similar = spellChecker.suggestSimilar("fiv", 2); assertEquals(1, similar.length); assertEquals(similar[0], "five"); similar = spellChecker.suggestSimilar("ive", 2); assertEquals(1, similar.length); assertEquals(similar[0], "five"); similar = spellChecker.suggestSimilar("fives", 2); assertEquals(1, similar.length); assertEquals(similar[0], "five"); similar = spellChecker.suggestSimilar("fie", 2); assertEquals(1, similar.length); assertEquals(similar[0], "five"); similar = spellChecker.suggestSimilar("fi", 2); assertEquals(0, similar.length); // test restraint to a field similar = spellChecker.suggestSimilar("tousand", 10, r, "field1", false); assertEquals(0, similar.length); // there isn't the term thousand in the field field1 similar = spellChecker.suggestSimilar("tousand", 10, r, "field2", false); assertEquals(1, similar.length); // there is the term thousand in the field field2