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

   1 <body>
   2 <p>Test simple shared worker sharing cases. Should print several PASS lines followed by 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     testRunner.dumpAsText();
  12     testRunner.waitUntilDone();
  13 }
  14
  15 // Load two workers simultaneously, to ensure that simultaneous loads also yield the same instance.
  16 // Loading a worker named "name" tests that workers shutdown when the parent document exits, because other tests also create workers with that same name but with different URLs.
  17 var worker = new SharedWorker('resources/shared-worker-common.js', 'name');
  18 var worker2 = new SharedWorker('resources/shared-worker-common.js', 'name');
  19
  20 try {
  21     new SharedWorker('resources/some-other-url.js', 'name');
  22     log("FAIL: Creating SharedWorker with different URLs but the same name should fail");
  23 } catch (ex) {
  24     var exString = ex.toString();
  25     exString = exString.replace(/file:\/\/.*\//, "")
  26     log("PASS: Exception thrown when creating SharedWorker with different URLs but same name: " + exString);
  27 }
  28
  29
  30 // Set something in global context in one worker, read value back on other worker, to make sure they are truly shared.
  31 worker.port.postMessage("eval self.foo");
  32 worker.port.onmessage = function(event)
  33 {
  34     log((event.data == "self.foo: undefined" ? "PASS: " : "FAIL: ") + "Accessing new instance of shared worker: " + event.data);
  35     worker.port.postMessage("eval self.foo = 1234");
  36     worker.port.onmessage = function(event)
  37     {
  38         log((event.data == "self.foo = 1234: 1234" ? "PASS: " : "FAIL: ") + "Setting global variable in shared worker: " + event.data);
  39         worker2.port.postMessage("eval self.foo");
  40         worker2.port.onmessage = function(event)
  41         {
  42             log((event.data == "self.foo: 1234" ? "PASS: " : "FAIL: ") + "Accessing simultaneously-loaded instance of shared worker: " + event.data);
  43             testNewWorker();
  44         }
  45     }
  46 }
  47
  48 function testNewWorker()
  49 {
  50     // New name, so should be a distinct worker from the previous one.
  51     var worker3 = new SharedWorker('resources/shared-worker-common.js', 'name2');
  52     worker3.port.postMessage("eval self.foo");
  53     worker3.port.onmessage = function(event)
  54     {
  55         log((event.data == "self.foo: undefined" ? "PASS: " : "FAIL: ") + "Accessing new instance of shared worker: " + event.data);
  56         testAlreadyLoaded();
  57     };
  58 }
  59
  60 function testAlreadyLoaded()
  61 {
  62     // Make sure that referencing a worker that is already loaded yields the same instance.
  63     var worker4 = new SharedWorker('resources/shared-worker-common.js', 'name');
  64     worker4.port.postMessage("eval self.foo");
  65     worker4.port.onmessage = function(event)
  66     {
  67         log((event.data == "self.foo: 1234" ? "PASS: " : "FAIL: ") + "Accessing already-loaded instance of shared worker: " + event.data);
  68         done();
  69     };
  70 }
  71
  72 function done()
  73 {
  74     log("DONE");
  75     if (window.testRunner)
  76         testRunner.notifyDone();
  77 }
  78 </script>
  79 </body>