1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.tika.language;
18  
19  import java.io.IOException;
20  
21  import junit.framework.TestCase;
22  
23  public class LanguageProfileTest extends TestCase {
24  
25      public void testLanguageProfile() throws IOException {
26          LanguageProfile foo = new LanguageProfile();
27          assertEquals(0, foo.getCount("foo"));
28  
29          foo.add("foo");
30          assertEquals(1, foo.getCount("foo"));
31  
32          foo.add("foo", 3);
33          assertEquals(4, foo.getCount("foo"));
34  
35          LanguageProfile bar = new LanguageProfile();
36          assertEquals(1.0, foo.distance(bar));
37  
38          bar.add("bar");
39          assertEquals(Math.sqrt(2.0), foo.distance(bar));
40  
41          bar.add("bar", 3);
42          assertEquals(Math.sqrt(2.0), foo.distance(bar));
43  
44          LanguageProfile foobar = new LanguageProfile();
45          assertTrue(foo.distance(foobar) == bar.distance(foobar));
46  
47          foobar.add("foo");
48          assertTrue( foo.distance(foobar) < bar.distance(foobar));
49  
50          foobar.add("bar");
51          assertTrue(foo.distance(foobar) == bar.distance(foobar));
52      }
53  
54  }