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importScripts("/resources/testharness.js");
test(function() {
var ch = new MessageChannel();
assert_true(ch.port1 instanceof MessagePort,
"Worker MessageChannel's port not an instance of MessagePort");
}, "Worker MessageChannel's port should be an instance of MessagePort");
test(function() {
assert_throws_js(TypeError, function() {
new MessagePort()
}, "MessagePort is [[Callable]]");
}, "Worker MessagePort should not be [[Callable]]");
done();