test_WorkerDebugger.xhtml

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<?xml version="1.0"?>

<!--

  Any copyright is dedicated to the Public Domain.

  http://creativecommons.org/publicdomain/zero/1.0/

-->

<window title="Test for WorkerDebugger"

        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>

  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"/>

  <script type="application/javascript" src="dom_worker_helper.js"/>

  <script type="application/javascript">

  <![CDATA[

    const WORKER_URL = "WorkerDebugger_worker.js";

    const CHILD_WORKER_URL = "WorkerDebugger_childWorker.js";

    const SHARED_WORKER_URL = "WorkerDebugger_sharedWorker.js";

    add_task(

      async function runTest() {

        info("Create a top-level chrome worker that creates a non-top-level " +

             "content worker and wait for their debuggers to be registered.");

        let promise = waitForMultiple([

          waitForRegister(WORKER_URL),

          waitForRegister(CHILD_WORKER_URL)

]);

        worker = new ChromeWorker(WORKER_URL, { name: "worker name" });

        let [dbg, childDbg] = await promise;

        info("Check that the top-level chrome worker debugger has the " +

             "correct properties.");

        is(dbg.isChrome, true,

           "Chrome worker debugger should be chrome.");

        is(dbg.parent, null,

           "Top-level debugger should not have parent.");

        is(dbg.type, Ci.nsIWorkerDebugger.TYPE_DEDICATED,

           "Chrome worker debugger should be dedicated.");

        is(dbg.window, window,

           "Top-level dedicated worker debugger should have window.");

        is(dbg.name, "worker name",

           "Top-level worker name is exposed via name attribute.");

        info("Check that the non-top-level content worker debugger has the " +

             "correct properties.");

        is(childDbg.isChrome, false,

           "Content worker debugger should be content.");

        is(childDbg.parent, dbg,

           "Non-top-level worker debugger should have parent.");

        is(childDbg.type, Ci.nsIWorkerDebugger.TYPE_DEDICATED,

           "Content worker debugger should be dedicated.");

        is(childDbg.window, window,

           "Non-top-level worker debugger should have window.");

        is(childDbg.name, "",

           "Non-top-level worker doesn't have a custom name");

        info("Terminate the top-level chrome worker and the non-top-level " +

             "content worker, and wait for their debuggers to be " +

             "unregistered and closed.");

        promise = waitForMultiple([

          waitForUnregister(CHILD_WORKER_URL),

          waitForDebuggerClose(childDbg),

          waitForUnregister(WORKER_URL),

          waitForDebuggerClose(dbg),

]);

        worker.terminate();

        await promise;

        info("Create a shared worker and wait for its debugger to be " +

             "registered");

        promise = waitForRegister(SHARED_WORKER_URL);

        worker = new SharedWorker(SHARED_WORKER_URL);

        let sharedDbg = await promise;

        info("Check that the shared worker debugger has the correct " +

             "properties.");

        is(sharedDbg.isChrome, false,

           "Shared worker debugger should be content.");

        is(sharedDbg.parent, null,

           "Shared worker debugger should not have parent.");

        is(sharedDbg.type, Ci.nsIWorkerDebugger.TYPE_SHARED,

           "Shared worker debugger should be shared.");

        is(sharedDbg.window, null,

           "Shared worker debugger should not have window.");

        info("Create a shared worker with the same URL and check that its " +

             "debugger is not registered again.");

        let listener = {

          onRegistered () {

            ok(false,

               "Shared worker debugger should not be registered again.");

},

};

        wdm.addListener(listener);

        let secondWorker = new SharedWorker(SHARED_WORKER_URL);

        info("Send a message to the shared worker to tell it to close " +

             "itself, and wait for its debugger to be closed.");

        promise = waitForMultiple([

          waitForUnregister(SHARED_WORKER_URL),

          waitForDebuggerClose(sharedDbg)

]);

        secondWorker.port.start();

        secondWorker.port.postMessage("close");

        await promise;

        worker = null;

        secondWorker = null;

        info("Create a SharedWorker again for the infinite loop test.")

        promise = waitForRegister(SHARED_WORKER_URL);

        // Give it an explicit name so we don't reuse the above SharedWorker.

        worker = new SharedWorker(SHARED_WORKER_URL, "loopy");

        sharedDbg = await promise;

        info("Send a message to the shared worker to tell it to close " +

             "itself, then loop forever, and wait for its debugger to be closed.");

        promise = waitForMultiple([

          waitForUnregister(SHARED_WORKER_URL),

          waitForDebuggerClose(sharedDbg)

]);

        // When the closing process begins, we schedule a timer to terminate

        // the worker in case it's in an infinite loop, which is exactly what

        // we do in this test.  The default delay is 30 seconds.  This test

        // previously waited 15 seconds for reasons that were poorly justified.

        // We now set it to 100ms because we just want to make sure that the

        // timeout mechanism to force cancellation from the parent properly

        // works (as long as the parent thread isn't blocked).

        await SpecialPowers.pushPrefEnv({"set": [[ "dom.worker.canceling.timeoutMilliseconds", 100 ]]});

        worker.port.start();

        worker.port.postMessage("close_loop");

        await promise;

        wdm.removeListener(listener);

);

]]>

  </script>

  <body xmlns="http://www.w3.org/1999/xhtml">

    <p id="display"></p>

    <div id="content" style="display:none;"></div>

    <pre id="test"></pre>

  </body>

  <label id="test-result"/>

</window>