event.ports.sub.htm (1550B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title> event.ports returns the MessagePort array sent with the message </title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 </head> 8 <body> 9 <div id=log></div> 10 11 <div style="display:none"> 12 <iframe width="70%" onload="PostMessageTest()" src="{{location[scheme]}}://{{domains[www1]}}:{{location[port]}}/webmessaging/support/ChildWindowPostMessage.htm"></iframe> 13 </div> 14 15 <script> 16 17 18 var description = "Test Description: event.ports returns the MessagePort array sent with the message."; 19 20 var t = async_test(description); 21 22 var DATA = {test: "e.source.postMessage(e.ports.toString(), '*', e.ports)"}; 23 var TARGET = document.querySelector("iframe"); 24 var ExpectedResult = ""; 25 26 function PostMessageTest() 27 { 28 test(function() 29 { 30 assert_own_property(window, "MessageChannel", "window"); 31 32 var channel = new MessageChannel(); 33 var ports = [channel.port1, channel.port2]; 34 ExpectedResult = ports.toString(); 35 TARGET.contentWindow.postMessage(DATA, "*", ports); 36 37 }, "MessageChannel is supported."); 38 } 39 40 window.onmessage = t.step_func(function(e) 41 { 42 assert_equals(e.data, ExpectedResult, "e.data"); 43 assert_true(e.ports[0] instanceof MessagePort, e.ports[0] + " instanceof MessageChannel"); 44 assert_true(e.ports[1] instanceof MessagePort, e.ports[1] + " instanceof MessageChannel"); 45 t.done(); 46 }); 47 </script> 48 </body> 49 </html>