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18 package org.apache.commons.math.util;
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20 import java.math.BigDecimal;
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22 import junit.framework.TestCase;
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24 import org.apache.commons.math.MathException;
25 import org.apache.commons.math.TestUtils;
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30 public class DefaultTransformerTest extends TestCase {
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32
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34 public void testTransformDouble() throws Exception {
35 double expected = 1.0;
36 Double input = Double.valueOf(expected);
37 DefaultTransformer t = new DefaultTransformer();
38 assertEquals(expected, t.transform(input), 1.0e-4);
39 }
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41
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43
44 public void testTransformNull(){
45 DefaultTransformer t = new DefaultTransformer();
46 try {
47 t.transform(null);
48 fail("Expection MathException");
49 } catch (MathException e) {
50
51 }
52 }
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56
57 public void testTransformInteger() throws Exception {
58 double expected = 1.0;
59 Integer input = Integer.valueOf(1);
60 DefaultTransformer t = new DefaultTransformer();
61 assertEquals(expected, t.transform(input), 1.0e-4);
62 }
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64
65
66
67 public void testTransformBigDecimal() throws Exception {
68 double expected = 1.0;
69 BigDecimal input = new BigDecimal("1.0");
70 DefaultTransformer t = new DefaultTransformer();
71 assertEquals(expected, t.transform(input), 1.0e-4);
72 }
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76
77 public void testTransformString() throws Exception {
78 double expected = 1.0;
79 String input = "1.0";
80 DefaultTransformer t = new DefaultTransformer();
81 assertEquals(expected, t.transform(input), 1.0e-4);
82 }
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86
87 public void testTransformObject(){
88 Boolean input = Boolean.TRUE;
89 DefaultTransformer t = new DefaultTransformer();
90 try {
91 t.transform(input);
92 fail("Expecting MathException");
93 } catch (MathException e) {
94
95 }
96 }
97
98 public void testSerial() {
99 assertEquals(new DefaultTransformer(), TestUtils.serializeAndRecover(new DefaultTransformer()));
100 }
101
102 }