1 /*
2 * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 4984872
27 * @summary Basic tests of toPlainString method
28 * @run main ToPlainStringTests
29 * @run main/othervm -XX:+AggressiveOpts ToPlainStringTests
30 * @author Joseph D. Darcy
31 */
32
33 import java.math.*;
34
35 public class ToPlainStringTests {
36 public static void main(String argv[]) {
37 String [][] testCases = {
38 {"0", "0"},
39 {"1", "1"},
40 {"10", "10"},
41 {"2e1", "20"},
42 {"3e2", "300"},
43 {"4e3", "4000"},
44 {"5e4", "50000"},
45 {"6e5", "600000"},
46 {"7e6", "7000000"},
47 {"8e7", "80000000"},
48 {"9e8", "900000000"},
49 {"1e9", "1000000000"},
50
51 {".0", "0.0"},
52 {".1", "0.1"},
53 {".10", "0.10"},
54 {"1e-1", "0.1"},
55 {"1e-1", "0.1"},
56 {"2e-2", "0.02"},
57 {"3e-3", "0.003"},
58 {"4e-4", "0.0004"},
59 {"5e-5", "0.00005"},
60 {"6e-6", "0.000006"},
61 {"7e-7", "0.0000007"},
62 {"8e-8", "0.00000008"},
63 {"9e-9", "0.000000009"},
64 {"9000e-12", "0.000000009000"},
65
66 {"9000e-22", "0.0000000000000000009000"},
67 {"12345678901234567890", "12345678901234567890"},
68 {"12345678901234567890e22", "123456789012345678900000000000000000000000"},
69 {"12345678901234567890e-22", "0.0012345678901234567890"},
70 };
71
72 int errors = 0;
73 for(String[] testCase: testCases) {
74 BigDecimal bd = new BigDecimal(testCase[0]);
75 String s;
76
77 if (!(s=bd.toPlainString()).equals(testCase[1])) {
78 errors++;
79 System.err.println("Unexpected plain result ``" +
80 s + "'' from BigDecimal " +
81 bd);
82 }
83 bd = new BigDecimal("-"+testCase[0]);
84 if (bd.signum()!=0 && !(s=(bd.toPlainString())).equals("-"+testCase[1])) {
85 errors++;
86 System.err.println("Unexpected plain result ``" +
87 s + "'' from BigDecimal " +
88 bd);
89 }
90 }
91
92 if(errors > 0)
93 throw new RuntimeException(errors + " errors during run.");
94 }
95 }