test/java/math/BigDecimal/IntegralDivisionTests.java

rev 7924 : 6378503: In java.math.BigDecimal, division by one returns zero
6446965: Using BigDecimal.divideToIntegralValue with extreme scales can lead to an incorrect result
Summary: Fix overflow of ints and ensure appropriate values passed to checkScaleNonZero()
Reviewed-by: darcy, martin
Contributed-by: Brian Burkhalter <brian.burkhalter@oracle.com>

@@ -20,11 +20,11 @@
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /*
  * @test
- * @bug 4904082 4917089 6337226
+ * @bug 4904082 4917089 6337226 6378503
  * @summary Tests that integral division and related methods return the proper result and scale.
  * @author Joseph D. Darcy
  */
 import java.math.*;
 public class IntegralDivisionTests {

@@ -45,10 +45,13 @@
             {new BigDecimal("1e9"),     new BigDecimal("0.1"),  new BigDecimal("1e10")},
             {new BigDecimal("10e8"),    new BigDecimal("0.1"),  new BigDecimal("10e9")},
             {new BigDecimal("400e1"),   new BigDecimal("5"),    new BigDecimal("80e1")},
             {new BigDecimal("400e1"),   new BigDecimal("4.999999999"),  new BigDecimal("8e2")},
             {new BigDecimal("40e2"),    new BigDecimal("5"),    new BigDecimal("8e2")},
+            {BigDecimal.valueOf(1, Integer.MIN_VALUE),
+                BigDecimal.valueOf(1, -(Integer.MAX_VALUE & 0x7fffff00)),
+                BigDecimal.valueOf(1, -256)},
         };
 
         for(BigDecimal [] testCase: moreTestCases) {
             BigDecimal quotient;
             if (! (quotient=testCase[0].divideToIntegralValue(testCase[1])).equals(testCase[2]) ){