1 /*
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12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
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23 
24 /*
25  * @test
26  * @bug 4489146 5017980
27  * @summary tests String constructors of BigInteger
28  * @author Joseph D. Darcy
29  */
30 package test.java.math.BigInteger;
31 
32 import java.math.*;
33 
34 import org.testng.Assert;
35 import org.testng.annotations.Test;
36 
37 // Android-changed: Replace error printing with asserts.
38 public class StringConstructor {
39 
40     @Test
testStringConstructor()41     public void testStringConstructor() {
42         // Good strings
43         constructWithoutError("0", 0L);
44         constructWithoutError("000000000000000000", 0L);
45         constructWithoutError("1", 1L);
46         constructWithoutError("-1", -1L);
47         constructWithoutError("+1", +1L);
48         constructWithoutError( "123456789123456789", 123456789123456789L);
49         constructWithoutError("+123456789123456789", 123456789123456789L);
50         constructWithoutError("-123456789123456789", -123456789123456789L);
51         constructWithoutError(Integer.toString(Integer.MIN_VALUE),
52                               (long)Integer.MIN_VALUE);
53         constructWithoutError(Integer.toString(Integer.MAX_VALUE),
54                               (long)Integer.MAX_VALUE);
55         constructWithoutError(Long.toString(Long.MIN_VALUE),
56                               Long.MIN_VALUE);
57         constructWithoutError(Long.toString(Long.MAX_VALUE),
58                               Long.MAX_VALUE);
59 
60         // Bad strings
61         constructWithError("");
62         constructWithError("-");
63         constructWithError("+");
64         constructWithError("--");
65         constructWithError("++");
66         constructWithError("-000-0");
67         constructWithError("+000+0");
68         constructWithError("+000-0");
69         constructWithError("--1234567890");
70         constructWithError("++1234567890");
71         constructWithError("-0-12345678");
72         constructWithError("+0+12345678");
73         constructWithError("--12345678-12345678-12345678");
74         constructWithError("++12345678+12345678+12345678");
75         constructWithError("12345-");
76         constructWithError("12345+");
77     }
78 
79     // this method adapted from ../BigDecimal/StringConstructor.java
constructWithError(String badString)80     private static void constructWithError(String badString) {
81         try {
82             BigInteger bi = new BigInteger(badString);
83             Assert.fail(badString + " accepted");
84         } catch(NumberFormatException e) {
85             // expected
86         }
87     }
88 
constructWithoutError(String goodString, long value)89     private static void constructWithoutError(String goodString, long value) {
90         BigInteger bi = new BigInteger(goodString);
91         Assert.assertEquals(bi.longValue(), value,
92                 String.format("From ``%s'' expected %d, got %s.\n", goodString, value, bi));
93     }
94 
95 }
96