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/*
 * @test
 * @bug 8354305
 * @summary Ensure SHAKE message digest algorithms behave the same
 *      as correspondent XOF of the same output size
 * @library /test/lib
 * @modules java.base/sun.security.provider
 */

import jdk.test.lib.Asserts;
import jdk.test.lib.security.SeededSecureRandom;
import sun.security.provider.SHA3;

import java.security.MessageDigest;

public class SHAKEhash {
    public static void main(String[] args) throws Exception {
        var random = SeededSecureRandom.one();
        var s1 = new SHA3.SHAKE128();
        var m1 = MessageDigest.getInstance("SHAKE128-256"); // use standard name
        var s2 = new SHA3.SHAKE256();
        var m2 = MessageDigest.getInstance("SHAKE256"); // use alias
        for (var i = 0; i < 1_000_000; i++) {
            var msg = random.nBytes(random.nextInt(100));
            s1.update(msg);
            m1.update(msg);
            Asserts.assertEqualsByteArray(s1.squeeze(32), m1.digest());
            s2.update(msg);
            m2.update(msg);
            Asserts.assertEqualsByteArray(s2.squeeze(64), m2.digest());
            s1.reset();
            s2.reset();
        }
    }
}