025.html (526B)
1 <!doctype html> 2 <title>MessagePort constructor properties</title> 3 <script src="/resources/testharness.js"></script> 4 <script src="/resources/testharnessreport.js"></script> 5 <div id=log></div> 6 <script> 7 test(function() { 8 var ch = new MessageChannel(); 9 assert_true(ch.port1 instanceof MessagePort, "MessageChannel's port not an instance of MessagePort"); 10 assert_throws_js(TypeError, function () { var p = new MessagePort();}, "MessagePort is [[Callable]]"); 11 }); 12 fetch_tests_from_worker(new Worker("025-1.js")); 13 </script>