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Java > Open Source Codes > net > sf > retrotranslator > runtime > java > text > _DecimalFormatTestCase


1 /***
2  * Retrotranslator: a Java bytecode transformer that translates Java classes
3  * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
4  *
5  * Copyright (c) 2005 - 2007 Taras Puchko
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the copyright holders nor the names of its
17  * contributors may be used to endorse or promote products derived from
18  * this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 package net.sf.retrotranslator.runtime.java.text;
33
34 import java.math.BigDecimal JavaDoc;
35 import java.text.*;
36 import java.util.Locale JavaDoc;
37 import junit.framework.TestCase;
38
39 /**
40  * @author Taras Puchko
41  */
42 public class _DecimalFormatTestCase extends TestCase {
43
44     public void testIsParseBigDecimal() throws Exception JavaDoc {
45         DecimalFormat format = new DecimalFormat();
46         assertFalse(format.isParseBigDecimal());
47         format.setParseBigDecimal(true);
48         assertTrue(format.isParseBigDecimal());
49         format.setParseBigDecimal(false);
50         assertFalse(format.isParseBigDecimal());
51     }
52
53     public void testSetParseBigDecimal() throws Exception JavaDoc {
54         DecimalFormat format = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
55         assertParse(new Double JavaDoc("1.2345"), format, "1.2345");
56         assertSpecial(format);
57         format.setParseBigDecimal(true);
58         assertParse(new BigDecimal JavaDoc("1.2345"), format, "1.2345");
59         assertSpecial(format);
60     }
61
62     private void assertSpecial(DecimalFormat format) throws ParseException {
63         assertParse(Double.NaN, format, format.getDecimalFormatSymbols().getNaN());
64         assertParse(Double.POSITIVE_INFINITY, format, format.getDecimalFormatSymbols().getInfinity());
65         assertParse(Double.NEGATIVE_INFINITY, format, "-" + format.getDecimalFormatSymbols().getInfinity());
66         assertParse(null, format, "unparsable");
67     }
68
69     private void assertParse(Object JavaDoc expected, DecimalFormat format, String JavaDoc source) throws ParseException {
70         assertDecimalFormat(expected, format, source);
71         assertNumberFormat(expected, format, source);
72         assertFormat(expected, format, source);
73     }
74
75     private void assertDecimalFormat(Object JavaDoc expected, DecimalFormat format, String JavaDoc source) throws ParseException {
76         assertEquals(expected, format.parse(source, new ParsePosition(0)));
77         assertEquals(expected, format.parseObject(source, new ParsePosition(0)));
78         if (expected != null) {
79             assertEquals(expected, format.parse(source));
80             assertEquals(expected, format.parseObject(source));
81         } else {
82             try {
83                 format.parse(source);
84                 fail();
85             } catch (ParseException e) {
86                 //ok
87 }
88             try {
89                 format.parseObject(source);
90                 fail();
91             } catch (ParseException e) {
92                 //ok
93 }
94         }
95     }
96
97     private void assertNumberFormat(Object JavaDoc expected, NumberFormat format, String JavaDoc source) throws ParseException {
98         assertEquals(expected, format.parse(source, new ParsePosition(0)));
99         assertEquals(expected, format.parseObject(source, new ParsePosition(0)));
100         if (expected != null) {
101             assertEquals(expected, format.parse(source));
102             assertEquals(expected, format.parseObject(source));
103         } else {
104             try {
105                 format.parse(source);
106                 fail();
107             } catch (ParseException e) {
108                 //ok
109 }
110             try {
111                 format.parseObject(source);
112                 fail();
113             } catch (ParseException e) {
114                 //ok
115 }
116         }
117     }
118
119     private void assertFormat(Object JavaDoc expected, Format format, String JavaDoc source) throws ParseException {
120         assertEquals(expected, format.parseObject(source, new ParsePosition(0)));
121         if (expected != null) {
122             assertEquals(expected, format.parseObject(source));
123         } else {
124             try {
125                 format.parseObject(source);
126                 fail();
127             } catch (ParseException e) {
128                 //ok
129 }
130         }
131     }
132
133 }
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