test/java/lang/Math/Tests.java

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@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2011 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.

@@ -336,6 +336,26 @@
             return 0;
         }
         else
             return 0;
     }
+
+    // For a successful test, the result must be within the upper and
+    // lower bounds.
+    public static int testBounds(String testName, double input, double result,
+                                 double bound1, double bound2) {
+        if ((result >= bound1 && result <= bound2) ||
+            (result <= bound1 && result >= bound2))
+            return 0;
+        else {
+            double lowerBound = Math.min(bound1, bound2);
+            double upperBound = Math.max(bound1, bound2);
+            System.err.println("Failure for " + testName + ":\n" +
+                               "\tFor input " + input    + "\t(" + toHexString(input) + ")\n" +
+                               "\tgot       " + result   + "\t(" + toHexString(result) + ");\n" +
+                               "\toutside of range\n" +
+                               "\t[" + lowerBound    + "\t(" + toHexString(lowerBound) + "), " +
+                               upperBound    + "\t(" + toHexString(upperBound) + ")]");
+            return 1;
+        }
+    }
 }