test/java/math/BigDecimal/StrippingZerosTest.java

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rev 7624 : 6480539: BigDecimal.stripTrailingZeros() has no effect on zero itself ("0.0")
Summary: Make stripTrailingZeros() return BigDecimal.ZERO if the BigDecimal is numerically equal to zero.
Reviewed-by: darcy
Contributed-by: Brian Burkhalter <brian.burkhalter@oracle.com>


  28  * @run main StrippingZerosTest
  29  * @run main/othervm -XX:+AggressiveOpts StrippingZerosTest
  30  * @author Joseph D. Darcy
  31  */
  32 
  33 import java.math.*;
  34 
  35 public class StrippingZerosTest {
  36     public static void main(String argv[]) {
  37         BigDecimal [][] testCases = {
  38             {new BigDecimal("1.00000"),         new BigDecimal("1")},
  39             {new BigDecimal("1.000"),           new BigDecimal("1")},
  40             {new BigDecimal("1"),               new BigDecimal("1")},
  41             {new BigDecimal("0.1234"),          new BigDecimal("0.1234")},
  42             {new BigDecimal("0.12340"),         new BigDecimal("0.1234")},
  43             {new BigDecimal("0.12340000000"),   new BigDecimal("0.1234")},
  44             {new BigDecimal("1234.5678"),       new BigDecimal("1234.5678")},
  45             {new BigDecimal("1234.56780"),      new BigDecimal("1234.5678")},
  46             {new BigDecimal("1234.567800000"),  new BigDecimal("1234.5678")},
  47             {new BigDecimal("0"),               new BigDecimal("0")},
  48             {new BigDecimal("0e100"),           new BigDecimal("0e100")},
  49             {new BigDecimal("0e-100"),          new BigDecimal("0e-100")},









  50             {new BigDecimal("10"),              new BigDecimal("1e1")},
  51             {new BigDecimal("20"),              new BigDecimal("2e1")},
  52             {new BigDecimal("100"),             new BigDecimal("1e2")},
  53             {new BigDecimal("1000000000"),      new BigDecimal("1e9")},
  54             {new BigDecimal("100000000e1"),     new BigDecimal("1e9")},
  55             {new BigDecimal("10000000e2"),      new BigDecimal("1e9")},
  56             {new BigDecimal("1000000e3"),       new BigDecimal("1e9")},
  57             {new BigDecimal("100000e4"),        new BigDecimal("1e9")},
  58             // BD value which larger than Long.MaxValue
  59             {new BigDecimal("1.0000000000000000000000000000"),    new BigDecimal("1")},
  60             {new BigDecimal("-1.0000000000000000000000000000"),   new BigDecimal("-1")},
  61             {new BigDecimal("1.00000000000000000000000000001"),   new BigDecimal("1.00000000000000000000000000001")},
  62             {new BigDecimal("1000000000000000000000000000000e4"), new BigDecimal("1e34")},
  63         };
  64 
  65         for(int i = 0; i < testCases.length; i++) {
  66 
  67             if (!(testCases[i][0]).stripTrailingZeros().equals(testCases[i][1])) {
  68                 throw new RuntimeException("For input " + testCases[i][0].toString() +
  69                                            " did not received expected result " +



  28  * @run main StrippingZerosTest
  29  * @run main/othervm -XX:+AggressiveOpts StrippingZerosTest
  30  * @author Joseph D. Darcy
  31  */
  32 
  33 import java.math.*;
  34 
  35 public class StrippingZerosTest {
  36     public static void main(String argv[]) {
  37         BigDecimal [][] testCases = {
  38             {new BigDecimal("1.00000"),         new BigDecimal("1")},
  39             {new BigDecimal("1.000"),           new BigDecimal("1")},
  40             {new BigDecimal("1"),               new BigDecimal("1")},
  41             {new BigDecimal("0.1234"),          new BigDecimal("0.1234")},
  42             {new BigDecimal("0.12340"),         new BigDecimal("0.1234")},
  43             {new BigDecimal("0.12340000000"),   new BigDecimal("0.1234")},
  44             {new BigDecimal("1234.5678"),       new BigDecimal("1234.5678")},
  45             {new BigDecimal("1234.56780"),      new BigDecimal("1234.5678")},
  46             {new BigDecimal("1234.567800000"),  new BigDecimal("1234.5678")},
  47             {new BigDecimal("0"),               new BigDecimal("0")},
  48             {new BigDecimal("0e2"),             BigDecimal.ZERO},
  49             {new BigDecimal("0e-2"),            BigDecimal.ZERO},
  50             {new BigDecimal("0e42"),            BigDecimal.ZERO},
  51             {new BigDecimal("+0e42"),           BigDecimal.ZERO},
  52             {new BigDecimal("-0e42"),           BigDecimal.ZERO},
  53             {new BigDecimal("0e-42"),           BigDecimal.ZERO},
  54             {new BigDecimal("+0e-42"),          BigDecimal.ZERO},
  55             {new BigDecimal("-0e-42"),          BigDecimal.ZERO},
  56             {new BigDecimal("0e-2"),            BigDecimal.ZERO},
  57             {new BigDecimal("0e100"),           BigDecimal.ZERO},
  58             {new BigDecimal("0e-100"),          BigDecimal.ZERO},
  59             {new BigDecimal("10"),              new BigDecimal("1e1")},
  60             {new BigDecimal("20"),              new BigDecimal("2e1")},
  61             {new BigDecimal("100"),             new BigDecimal("1e2")},
  62             {new BigDecimal("1000000000"),      new BigDecimal("1e9")},
  63             {new BigDecimal("100000000e1"),     new BigDecimal("1e9")},
  64             {new BigDecimal("10000000e2"),      new BigDecimal("1e9")},
  65             {new BigDecimal("1000000e3"),       new BigDecimal("1e9")},
  66             {new BigDecimal("100000e4"),        new BigDecimal("1e9")},
  67             // BD value which larger than Long.MaxValue
  68             {new BigDecimal("1.0000000000000000000000000000"),    new BigDecimal("1")},
  69             {new BigDecimal("-1.0000000000000000000000000000"),   new BigDecimal("-1")},
  70             {new BigDecimal("1.00000000000000000000000000001"),   new BigDecimal("1.00000000000000000000000000001")},
  71             {new BigDecimal("1000000000000000000000000000000e4"), new BigDecimal("1e34")},
  72         };
  73 
  74         for(int i = 0; i < testCases.length; i++) {
  75 
  76             if (!(testCases[i][0]).stripTrailingZeros().equals(testCases[i][1])) {
  77                 throw new RuntimeException("For input " + testCases[i][0].toString() +
  78                                            " did not received expected result " +