test/sun/security/mscapi/PrngSlow.java

rev 11258 : 8139436: sun.security.mscapi.KeyStore might load incomplete data
Reviewed-by: vinnie, weijun

*** 1,7 ****
  /*
!  * Copyright (c) 2006, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2006, 2015 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.
*** 22,56 ****
   */
  
  /**
   * @test
   * @bug 6449335
   * @summary MSCAPI's PRNG is too slow
   */
  
  import java.security.SecureRandom;
  
  public class PrngSlow {
  
      public static void main(String[] args) throws Exception {
          double t = 0.0;
-         try {
              SecureRandom sr = null;
!             sr = SecureRandom.getInstance("PRNG", "SunMSCAPI");
              long start = System.nanoTime();
!             int x = 0;
!             for(int i = 0; i < 10000; i++) {
                  if (i % 100 == 0) System.err.print(".");
!                 if (sr.nextBoolean()) x++;
              };
              t = (System.nanoTime() - start) / 1000000000.0;
              System.err.println("\nSpend " + t + " seconds");
-         } catch (Exception e) {
-             // Not supported here, maybe not a Win32
-             System.err.println("Cannot find PRNG for SunMSCAPI or other mysterious bugs");
-             e.printStackTrace();
-             return;
-         }
          if (t > 5)
              throw new RuntimeException("Still too slow");
      }
  }
--- 22,49 ----
   */
  
  /**
   * @test
   * @bug 6449335
+  * @requires os.family == "windows"
   * @summary MSCAPI's PRNG is too slow
   */
  
  import java.security.SecureRandom;
  
  public class PrngSlow {
  
      public static void main(String[] args) throws Exception {
          double t = 0.0;
          SecureRandom sr = null;
!         sr = SecureRandom.getInstance("Windows-PRNG", "SunMSCAPI");
          long start = System.nanoTime();
!         for (int i = 0; i < 10000; i++) {
              if (i % 100 == 0) System.err.print(".");
!             sr.nextBoolean();
          };
          t = (System.nanoTime() - start) / 1000000000.0;
          System.err.println("\nSpend " + t + " seconds");
          if (t > 5)
              throw new RuntimeException("Still too slow");
      }
  }