/*

 * 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.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

/**

 * @test

 * @bug 6449335

 * @requires os.family == "windows"

 * @summary MSCAPI's PRNG is too slow

 * @key randomness

 */

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");

    }

}