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Java > Open Source Codes > org > apache > commons > math > util > DefaultTransformerTest


1 /*
2  * Copyright 2003-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16
17 package org.apache.commons.math.util;
18
19 import java.math.BigDecimal JavaDoc;
20
21 import org.apache.commons.math.MathException;
22 import junit.framework.TestCase;
23
24 /**
25  * @version $Revision$ $Date: 2005-06-26 15:25:41 -0700 (Sun, 26 Jun 2005) $
26  */

27 public class DefaultTransformerTest extends TestCase {
28     /**
29      *
30      */

31     public void testTransformDouble() throws Exception JavaDoc {
32         double expected = 1.0;
33         Double JavaDoc input = new Double JavaDoc(expected);
34         DefaultTransformer t = new DefaultTransformer();
35         assertEquals(expected, t.transform(input), 1.0e-4);
36     }
37     
38     /**
39      *
40      */

41     public void testTransformNull(){
42         DefaultTransformer t = new DefaultTransformer();
43         try {
44             t.transform(null);
45             fail("Expection MathException");
46         } catch (MathException e) {
47             // expected
48
}
49     }
50     
51     /**
52      *
53      */

54     public void testTransformInteger() throws Exception JavaDoc {
55         double expected = 1.0;
56         Integer JavaDoc input = new Integer JavaDoc(1);
57         DefaultTransformer t = new DefaultTransformer();
58         assertEquals(expected, t.transform(input), 1.0e-4);
59     }
60     
61     /**
62      *
63      */

64     public void testTransformBigDecimal() throws Exception JavaDoc {
65         double expected = 1.0;
66         BigDecimal JavaDoc input = new BigDecimal JavaDoc("1.0");
67         DefaultTransformer t = new DefaultTransformer();
68         assertEquals(expected, t.transform(input), 1.0e-4);
69     }
70     
71     /**
72      *
73      */

74     public void testTransformString() throws Exception JavaDoc {
75         double expected = 1.0;
76         String JavaDoc input = "1.0";
77         DefaultTransformer t = new DefaultTransformer();
78         assertEquals(expected, t.transform(input), 1.0e-4);
79     }
80     
81     /**
82      *
83      */

84     public void testTransformObject(){
85         Boolean JavaDoc input = Boolean.TRUE;
86         DefaultTransformer t = new DefaultTransformer();
87         try {
88             t.transform(input);
89             fail("Expecting MathException");
90         } catch (MathException e) {
91             // expected
92
}
93     }
94 }
95
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