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/*

 * @test TestInitialTenuringThreshold

 * @key gc

 * @bug 8014765

 * @requires vm.gc=="Parallel" | vm.gc=="null"

 * @summary Tests argument processing for initial tenuring threshold

 * @library /testlibrary

 *          java.management

 * @run main/othervm TestInitialTenuringThreshold

 * @author thomas.schatzl@oracle.com

 */

import jdk.test.lib.*;

public class TestInitialTenuringThreshold {

  public static void runWithThresholds(int initial, int max, boolean shouldfail) throws Exception {

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

      "-XX:+UseParallelGC",

      "-XX:InitialTenuringThreshold=" + String.valueOf(initial),

      "-XX:MaxTenuringThreshold=" + String.valueOf(max),

      "-version"

      );

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

    if (shouldfail) {

      output.shouldHaveExitValue(1);

    } else {

      output.shouldHaveExitValue(0);

    }

  }

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

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

      // some value below the default value of InitialTenuringThreshold of 7

      "-XX:MaxTenuringThreshold=1",

      "-version"

      );

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

    output.shouldHaveExitValue(0);

    // successful tests

    runWithThresholds(0, 10, false);

    runWithThresholds(5, 5, false);

    runWithThresholds(8, 16, false);

    // failing tests

    runWithThresholds(10, 0, true);

    runWithThresholds(9, 8, true);

    runWithThresholds(-1, 8, true);

    runWithThresholds(0, -1, true);

    runWithThresholds(8, -1, true);

    runWithThresholds(16, 8, true);

    runWithThresholds(8, 17, true);

  }

}