third_party/WebKit/LayoutTests/fast/workers/worker-close.html

   1 <body>
   2 <p>Test WorkerContext.close functionality. Should print a series of PASS messages, followed with DONE.</p>
   3 <div id=result></div>
   4 <script>
   5 function log(message)
   6 {
   7     document.getElementById("result").innerHTML += message + "<br>";
   8 }
   9
  10 if (window.testRunner)
  11 {
  12     testRunner.dumpAsText();
  13     testRunner.waitUntilDone();
  14 }
  15
  16 var worker = new Worker('resources/worker-close.js');
  17 var timeout = 0;
  18
  19 worker.postMessage("typeofClose");
  20 worker.onmessage = testTypeofClose;
  21
  22 function testTypeofClose(evt)
  23 {
  24     if (evt.data == "typeof close: function")
  25         log("PASS: " + evt.data);
  26     else
  27         log("FAIL: " + evt.data);
  28     worker.onmessage = testMessageAfterClose;
  29     worker.postMessage("ping");
  30 }
  31
  32 function testMessageAfterClose(evt) {
  33     if (evt.data == "pong")
  34         log("PASS: received message before close");
  35     else
  36         log("FAIL: received unknown response: " + evt.data);
  37
  38     // Tell the worker to close, then send a followup message. This message should not be delivered,
  39     // since that would require JS to invoke the onmessage handler, which does not happen after the JS
  40     // fragment with 'close()' in it exits. So, the 'ping' should not come back as 'pong'.
  41     worker.postMessage("close");
  42     worker.postMessage("ping");
  43     worker.onmessage = function(evt) {
  44         if (evt.data != "pong") {
  45             log("PASS: Received message posted right after close() was invoked: " + evt.data);
  46             timeout = setTimeout(testErrorAfterClose, 1000);
  47         } else {
  48             log("FAIL: Received a message originated from a handler in the worker after the JS fragment with close() exited" + evt.data);
  49             done();
  50         }
  51     };
  52 }
  53
  54 function testErrorAfterClose()
  55 {
  56     log("PASS: no messages arrive to worker after JS fragment with close() exits");
  57     // Test that errors are delivered after close.
  58     worker = new Worker('resources/worker-close.js');
  59     worker.postMessage("closeWithError");
  60     worker.onerror = function(event) {
  61         log("PASS: Error arrived after close: " + event.message);
  62         testPendingEvents();
  63         return false;
  64     }
  65 }
  66
  67 function testPendingEvents()
  68 {
  69     // Now test that workers do not deliver pending events
  70     worker = new Worker('resources/worker-close.js');
  71     worker.postMessage("closeWithPendingEvents");
  72     worker.onmessage = function(evt) {
  73         log("FAIL: pending events should not fire:" + evt.data);
  74         done();
  75     }
  76     worker.onerror = function(evt) {
  77         log("FAIL: pending events should not fire:" + evt.message);
  78         done();
  79     }
  80     timeout = setTimeout(testTerminateAfterClose, 500);
  81 }
  82
  83 function testTerminateAfterClose()
  84 {
  85     log("PASS: close() did not dispatch pending events");
  86     worker = new Worker('resources/worker-close.js');
  87     worker.postMessage("close");
  88     worker.onmessage = function(evt) {
  89         log("PASS: Received message after worker closed: " + evt.data);
  90         // Give worker a chance to close first, then terminate it.
  91         timeout = setTimeout(function() {
  92             worker.terminate();
  93             done();
  94         }, 500);
  95     };
  96 }
  97
  98 function done() {
  99     if (timeout)
 100         clearTimeout(timeout);
 101     log("DONE");
 102     if (window.testRunner)
 103         testRunner.notifyDone();
 104 }
 105 </script>
 106 </body>
 107 </html>
 108