postMessage_clone_port.htm

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This WPT test may be referenced by the following Test IDs:
- /workers/postMessage_clone_port.htm - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title> postMessage(): clone a port </title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id=log></div>

<script>

async_test(function(t) {

  var channelA = new MessageChannel();

  var channelB = new MessageChannel();

  var originalPort = channelB.port2;

  channelA.port2.onmessage = t.step_func(function(e) {

    assert_equals(e.data, "ports");

    var clonedPort = e.ports[0];

    assert_not_equals(clonedPort, originalPort, "new cloned port object should not equal to the original port!");

    clonedPort.onmessage = t.step_func_done(function(e) {

      assert_equals(e.data, "ping", "Data sent through remote port is received by the new cloned port");

});

});

  channelA.port1.postMessage("ports", [channelB.port2]);

  channelB.port1.postMessage("ping");

});

</script>