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/*

 * @test TestShrinkHeapInSteps

 * @key gc

 * @summary Verify that -XX:-ShrinkHeapInSteps works properly.

 * @library /testlibrary

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

 *          java.management

 * @build TestMaxMinHeapFreeRatioFlags TestShrinkHeapInSteps

 * @run driver/timeout=240 TestShrinkHeapInSteps

 */

import java.util.LinkedList;

import java.util.Arrays;

import java.util.Collections;

import jdk.test.lib.Utils;

public class TestShrinkHeapInSteps {

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

        LinkedList<String> options = new LinkedList<>(

                Arrays.asList(Utils.getFilteredTestJavaOpts("-XX:[^ ]*HeapFreeRatio","-XX:\\+ExplicitGCInvokesConcurrent"))

        );

        // Leverage the existing TestMaxMinHeapFreeRatioFlags test, but pass

        // "false" for the shrinkHeapInSteps argument. This will cause it to

        // run with -XX:-ShrinkHeapInSteps, and only do 1 full GC instead of 10.

        TestMaxMinHeapFreeRatioFlags.positiveTest(10, false, 90, false, false, options);

        TestMaxMinHeapFreeRatioFlags.positiveTest(10, true, 80, false, false, options);

        TestMaxMinHeapFreeRatioFlags.positiveTest(20, false, 70, true, false, options);

        TestMaxMinHeapFreeRatioFlags.positiveTest(25, true, 65, true, false, options);

        TestMaxMinHeapFreeRatioFlags.positiveTest(40, false, 50, false, false, options);

    }

}