test/jdk/jdk/jfr/startupargs/TestStartDelay.java

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package jdk.jfr.startupargs;

import java.time.Duration;
import java.time.Instant;

import jdk.jfr.Recording;
import jdk.jfr.RecordingState;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.CommonHelper;

/**
 * @test
 * @summary Start a recording with delay. Verify recording starts later.
 * @key jfr
 * @requires vm.hasJFR
 * @library /test/lib /test/jdk
 * @run main/othervm -XX:StartFlightRecording=name=TestStartDelay,delay=5000s jdk.jfr.startupargs.TestStartDelay
 */
public class TestStartDelay {

    public static void main(String[] args) throws Exception {
        Instant testStart = Instant.now();
        System.out.println("Test started at " + testStart);
        Recording r = StartupHelper.getRecording("TestStartDelay");
        CommonHelper.verifyRecordingState(r, RecordingState.DELAYED);
        Asserts.assertNotNull(r.getStartTime(), "Recording start time should not be null for a delayed recording");
        Asserts.assertLessThanOrEqual(r.getStartTime(), testStart.plus(Duration.ofSeconds(5000)), "Recording start time should not exceed test start time + delay");
        Asserts.assertGreaterThanOrEqual(r.getStartTime(), testStart, "Recording start time should not happen before test start time");
        r.close();
    }

}