<!doctype html>
<html>
<head>
<script src="../../http/tests/inspector/resources/inspector-test.js"></script>
<script>
function test()
{
    var recordingStartTime = NaN;
    var recordingEndTime = NaN;

    function check(condition, message)
    {
        InspectorTest.log((condition ? "PASS" : "FAIL") + ": " + message);
    }

    WI.timelineManager.addEventListener(WI.TimelineManager.Event.CapturingStateChanged, (event) => {
        if (WI.timelineManager.capturingState === WI.TimelineManager.CapturingState.Active) {
            InspectorTest.assert(typeof event.data.startTime === "number");
            InspectorTest.assert(event.data.startTime > 0);

            if (isNaN(recordingStartTime)) {
                InspectorTest.log("PASS: 1st CapturingStarted had startTime");
            } else {
                InspectorTest.assert(event.data.startTime > recordingStartTime, "FAIL: 2nd CapturingStarted should be > 1st CapturingStarted");
                InspectorTest.log("PASS: 2nd CapturingStarted had startTime > 1st CapturingStarted");
                InspectorTest.assert(event.data.startTime > recordingEndTime, "FAIL: 2nd CapturingStarted should be > 1st CapturingStopped");
                InspectorTest.log("PASS: 2nd CapturingStarted had startTime > 1st CapturingStopped");
            }

            recordingStartTime = event.data.startTime;
            return;
        }

        if (WI.timelineManager.capturingState === WI.TimelineManager.CapturingState.Inactive) {
            InspectorTest.assert(typeof event.data.endTime === "number");
            InspectorTest.assert(event.data.endTime > 0);

            if (isNaN(recordingEndTime)) {
                InspectorTest.log("PASS: 1st CapturingStopped had endTime");
                InspectorTest.assert(event.data.endTime > recordingStartTime, "FAIL: 1st CapturingStopped should be > 1st CapturingStarted");
                InspectorTest.log("PASS: 1st CapturingStopped had endTime > 1st CapturingStarted");
            } else {
                InspectorTest.assert(event.data.endTime > recordingEndTime, "FAIL: 2nd CapturingStopped should be > 1st CapturingStopped");
                InspectorTest.log("PASS: 2nd CapturingStopped had endTime > 1st CapturingStopped");
                InspectorTest.assert(event.data.endTime > recordingStartTime, "FAIL: 2nd CapturingStopped should be > 2nd CapturingStarted");
                InspectorTest.log("PASS: 2nd CapturingStopped had endTime > 2nd CapturingStarted");
                InspectorTest.completeTest();
            }

            recordingEndTime = event.data.endTime;
            return;
        }
    });

    TimelineAgent.start()
        .then(function() { return TimelineAgent.stop(); })
        .then(function() { return TimelineAgent.start(); })
        .then(function() { return TimelineAgent.stop(); });
}
</script>
</head>
<body onload="runTest()">
    <p>Testing that timeline start and stop events have timestamps and are ordered reasonably.</p>
</body>
</html>