/*

 * Copyright (c) 2014, 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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 * questions.

 */

/*

 * @test

 * @bug 8059510

 * @summary Test SharedSymbolTableBucketSize option

 * @library /testlibrary

 */

import com.oracle.java.testlibrary.*;

public class SharedSymbolTableBucketSize {

    public static void main(String[] args) throws Exception {

        int bucket_size = 8;

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

            "-Xshare:dump", "-XX:+PrintSharedSpaces",

            "-XX:+UnlockDiagnosticVMOptions",

            "-XX:SharedArchiveFile=./sample.jsa",

            "-XX:SharedSymbolTableBucketSize=" + Integer.valueOf(bucket_size));

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("Loading classes to share");

        output.shouldHaveExitValue(0);

        String s = output.firstMatch("Average bucket size     : .*");

        Float f = Float.parseFloat(s.substring(25));

        int size = Math.round(f);

        if (size != bucket_size) {

          throw new Exception("FAILED: incorrect bucket size " + size +

                              ", expect " + bucket_size);

        }

        // Invalid SharedSymbolTableBucketSize input

        String input[] = {"-XX:SharedSymbolTableBucketSize=-1",

                          "-XX:SharedSymbolTableBucketSize=2.5"};

        for (int i = 0; i < input.length; i++) {

          pb = ProcessTools.createJavaProcessBuilder(

               "-Xshare:dump", "-XX:+PrintSharedSpaces",

               "-XX:+UnlockDiagnosticVMOptions",

               "-XX:SharedArchiveFile=./sample.jsa",

               input[i]);

          output = new OutputAnalyzer(pb.start());

          output.shouldContain("Improperly specified VM option");

      }

  }

}