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 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

 *

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 */

/*

 * @test

 * @summary Test miscellanous functionality related to JVM running in docker container

 * @requires docker.support

 * @library /test/lib

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

 *          java.management

 *          jdk.jartool/sun.tools.jar

 * @build Common CheckContainerized sun.hotspot.WhiteBox PrintContainerInfo

 * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run driver TestMisc

 */

import jdk.test.lib.containers.docker.DockerRunOptions;

import jdk.test.lib.containers.docker.DockerTestUtils;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

public class TestMisc {

    private static final String imageName = Common.imageName("misc");

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

        if (!DockerTestUtils.canTestDocker()) {

            return;

        }

        Common.prepareWhiteBox();

        DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");

        try {

            testMinusContainerSupport();

            testIsContainerized();

            testPrintContainerInfo();

        } finally {

            DockerTestUtils.removeDockerImage(imageName);

        }

    }

    private static void testMinusContainerSupport() throws Exception {

        Common.logNewTestCase("Test related flags: '-UseContainerSupport'");

        DockerRunOptions opts = new DockerRunOptions(imageName, "/jdk/bin/java", "-version");

        opts.addJavaOpts("-XX:-UseContainerSupport", "-Xlog:os+container=trace");

        Common.run(opts)

            .shouldContain("Container Support not enabled");

    }

    private static void testIsContainerized() throws Exception {

        Common.logNewTestCase("Test is_containerized() inside a docker container");

        DockerRunOptions opts = Common.newOpts(imageName, "CheckContainerized");

        Common.addWhiteBoxOpts(opts);

        Common.run(opts)

            .shouldContain(CheckContainerized.INSIDE_A_CONTAINER);

    }

    private static void testPrintContainerInfo() throws Exception {

        Common.logNewTestCase("Test print_container_info()");

        DockerRunOptions opts = Common.newOpts(imageName, "PrintContainerInfo");

        Common.addWhiteBoxOpts(opts);

        checkContainerInfo(Common.run(opts));

    }

    private static void checkContainerInfo(OutputAnalyzer out) throws Exception {

        String[] expectedToContain = new String[] {

            "cpuset.cpus",

            "cpuset.mems",

            "CPU Shares",

            "CPU Quota",

            "CPU Period",

            "OSContainer::active_processor_count",

            "Memory Limit",

            "Memory Soft Limit",

            "Memory Usage",

            "Maximum Memory Usage",

            "memory_max_usage_in_bytes"

        };

        for (String s : expectedToContain) {

            out.shouldContain(s);

        }

    }

}