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import jdk.testlibrary.OutputAnalyzer;
import static jdk.testlibrary.Asserts.assertTrue;

/**
 * @test
 * @summary The test sanity checks functionality of 'jinfo', 'jinfo -sysprops' and 'jinfo -flags'
 * @library /lib/testlibrary
 * @modules java.management
 * @build jdk.testlibrary.* JInfoHelper
 * @run main/othervm -XX:+HeapDumpOnOutOfMemoryError JInfoRunningProcessTest
 */
public class JInfoRunningProcessTest {

    public static void main(String[] args) throws Exception {
        testNoOptions();
        testSysprops();
        testFlags();
    }

    private static void testNoOptions() throws Exception {
        OutputAnalyzer output = JInfoHelper.jinfo();
        output.shouldHaveExitValue(0);
        assertTrue(output.getStderr().isEmpty(), "'jinfo' stderr should be empty");
        output.shouldContain("+HeapDumpOnOutOfMemoryError");
    }

    private static void testSysprops() throws Exception {
        OutputAnalyzer output = JInfoHelper.jinfo("-sysprops");
        output.shouldHaveExitValue(0);
        assertTrue(output.getStderr().isEmpty(), "'jinfo -sysprops' stderr should be empty");
    }

    private static void testFlags() throws Exception {
        OutputAnalyzer output = JInfoHelper.jinfo("-flags");
        output.shouldHaveExitValue(0);
        assertTrue(output.getStderr().isEmpty(), "'jinfo -flags' stderr should be empty");
        output.shouldContain("+HeapDumpOnOutOfMemoryError");
    }

}