Content - 057411e4b1c121b2331209f3788f97cdb4e4833a - db403af/workers/postMessage_ports_readonly_array.htm

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Tip revision: feb7605d5a63e27fccc1b7684b7a5f8f21bc0cf3 authored by James Graham on 24 April 2014, 11:15:33 UTC
Stop using w3c-test.org for progress-events test

Tip revision: feb7605

postMessage_ports_readonly_array.htm

<!DOCTYPE html>
<html>
<head>
<title> postMessage(): read-only ports array </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id=log></div>
<script>
    
    var TargetPort = null;
    var description = "The postMessage() method - Make new ports into a read only array.";
    
    var t = async_test("Test Description: " + description);
    
    var channel = new MessageChannel();
                    
    TargetPort = channel.port2;
    TargetPort.start();
    TargetPort.addEventListener("message", t.step_func(TestMessageEvent), true);
    
    var channel2 = new MessageChannel();
    
    channel.port1.postMessage("ports", [channel2.port1]);
    
    function TestMessageEvent(evt)
    {
        var channel3 = new MessageChannel();
        evt.ports.push(channel3.port1);
        evt.ports.push(channel3.port1);
        
        assert_equals(evt.ports.length, 1, "ports is a read only array with length == 1.");
        t.done();
    }
</script>
</body>
</html>

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