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/**

 * @test

 * @bug 8059510

 * @summary Test SharedSymbolTableBucketSize option

 * @requires vm.cds

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 */

import jdk.test.lib.cds.CDSTestUtils;

import jdk.test.lib.process.OutputAnalyzer;

public class SharedSymbolTableBucketSize {

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

        int bucket_size = 8;

        OutputAnalyzer output =

            CDSTestUtils.createArchive("-XX:SharedSymbolTableBucketSize="

                                       + Integer.valueOf(bucket_size));

        CDSTestUtils.checkDump(output);

        CDSTestUtils.checkMappingFailure(output);

        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++) {

            CDSTestUtils.createArchive(input[i])

                .shouldContain("Improperly specified VM option")

                .shouldHaveExitValue(1);

        }

    }

}