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TestAnalyzers.javaAPI DocApache Lucene 1.93266Mon Feb 20 09:19:20 GMT 2006org.apache.lucene.analysis

TestAnalyzers

public class TestAnalyzers extends TestCase
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.

Fields Summary
Constructors Summary
public TestAnalyzers(String name)

      super(name);
Methods Summary
public voidassertAnalyzesTo(org.apache.lucene.analysis.Analyzer a, java.lang.String input, java.lang.String[] output)

    TokenStream ts = a.tokenStream("dummy", new StringReader(input));
    for (int i=0; i<output.length; i++) {
      Token t = ts.next();
      assertNotNull(t);
      assertEquals(t.termText(), output[i]);
    }
    assertNull(ts.next());
    ts.close();
public voidtestNull()

    Analyzer a = new WhitespaceAnalyzer();
    assertAnalyzesTo(a, "foo bar FOO BAR", 
                     new String[] { "foo", "bar", "FOO", "BAR" });
    assertAnalyzesTo(a, "foo      bar .  FOO <> BAR", 
                     new String[] { "foo", "bar", ".", "FOO", "<>", "BAR" });
    assertAnalyzesTo(a, "foo.bar.FOO.BAR", 
                     new String[] { "foo.bar.FOO.BAR" });
    assertAnalyzesTo(a, "U.S.A.", 
                     new String[] { "U.S.A." });
    assertAnalyzesTo(a, "C++", 
                     new String[] { "C++" });
    assertAnalyzesTo(a, "B2B", 
                     new String[] { "B2B" });
    assertAnalyzesTo(a, "2B", 
                     new String[] { "2B" });
    assertAnalyzesTo(a, "\"QUOTED\" word", 
                     new String[] { "\"QUOTED\"", "word" });
public voidtestSimple()

    Analyzer a = new SimpleAnalyzer();
    assertAnalyzesTo(a, "foo bar FOO BAR", 
                     new String[] { "foo", "bar", "foo", "bar" });
    assertAnalyzesTo(a, "foo      bar .  FOO <> BAR", 
                     new String[] { "foo", "bar", "foo", "bar" });
    assertAnalyzesTo(a, "foo.bar.FOO.BAR", 
                     new String[] { "foo", "bar", "foo", "bar" });
    assertAnalyzesTo(a, "U.S.A.", 
                     new String[] { "u", "s", "a" });
    assertAnalyzesTo(a, "C++", 
                     new String[] { "c" });
    assertAnalyzesTo(a, "B2B", 
                     new String[] { "b", "b" });
    assertAnalyzesTo(a, "2B", 
                     new String[] { "b" });
    assertAnalyzesTo(a, "\"QUOTED\" word", 
                     new String[] { "quoted", "word" });
public voidtestStop()

    Analyzer a = new StopAnalyzer();
    assertAnalyzesTo(a, "foo bar FOO BAR", 
                     new String[] { "foo", "bar", "foo", "bar" });
    assertAnalyzesTo(a, "foo a bar such FOO THESE BAR", 
                     new String[] { "foo", "bar", "foo", "bar" });