1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4018937
* @summary Confirm that DecimalFormat.parse() parses BigDecimal and BigInteger as expected.
*/
import java.math.*;
import java.text.*;
import java.util.*;
public class BigDecimalCompatibilityTest {
static boolean err = false;
static final String[] input_data = {
"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
};
static final String[] exponents = {
"E-100", "E100", "E-900", "E900", ""
};
static final int[] multipliers = {
-1, 1, -100, 100, -9999, 9999
};
public static void main(String[] args) throws Exception {
Locale loc = Locale.getDefault();
Locale.setDefault(Locale.US);
testBigDecimal();
testBigInteger();
Locale.setDefault(loc);
if (err) {
throw new RuntimeException("Error: Unexpected value");
}
}
static private void testBigDecimal() {
DecimalFormat df = new DecimalFormat();
df.setParseBigDecimal(true);
df.setMaximumFractionDigits(Integer.MAX_VALUE);
for (int i = 0; i < input_data.length; i++) {
for (int j = 0; j < input_data.length; j++) {
for (int k = 0; k < input_data.length; k++) {
for (int l = 0; l < input_data.length; l++) {
for (int m = 0; m < exponents.length; m++) {
String s = input_data[i] + input_data[j] + '.' +
input_data[k] + input_data[l] +
exponents[m];
for (int n = 0; n < multipliers.length; n++) {
test(df, s, multipliers[n]);
test(df, '-'+s, multipliers[n]);
}
}
}
}
}
}
}
static private void testBigInteger() {
DecimalFormat df = new DecimalFormat();
df.setParseBigDecimal(true);
df.setMaximumFractionDigits(Integer.MAX_VALUE);
for (int i = 0; i < input_data.length; i++) {
for (int j = 0; j < input_data.length; j++) {
String s = input_data[i] + input_data[j];
for (int k = 0; k < multipliers.length; k++) {
test(df, s, multipliers[k]);
test(df, '-'+s, multipliers[k]);
}
}
}
}
static void test(DecimalFormat df, String s, int multiplier) {
df.setMultiplier(multiplier);
Number num = null;
try {
num = df.parse(s);
}
catch (ParseException e) {
err = true;
System.err.println("Failed: Exception occurred: " + e.getMessage());
return;
}
BigDecimal bd = new BigDecimal(s);
try {
bd = bd.divide(new BigDecimal(multiplier));
}
catch (ArithmeticException e) {
bd = bd.divide(new BigDecimal(multiplier), RoundingMode.HALF_EVEN);
}
check(num, bd, multiplier);
}
static void check(Number got, BigDecimal expected, int multiplier) {
if (!got.equals(expected)) {
err = true;
System.err.println("Failed: got:" + got +
", expected: " + expected +
", multiplier=" + multiplier);
}
}
}
|
