01: /*
02: * Copyright 2003-2004 The Apache Software Foundation.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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;
20:
21: import org.apache.commons.math.MathException;
22: import junit.framework.TestCase;
23:
24: /**
25: * @version $Revision: 201916 $ $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 {
32: double expected = 1.0;
33: Double input = new Double(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 {
55: double expected = 1.0;
56: Integer input = new Integer(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 {
65: double expected = 1.0;
66: BigDecimal input = new BigDecimal("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 {
75: double expected = 1.0;
76: String 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 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: }
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