browser/devtools/webconsole/test/browser_console_dead_objects.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/devtools/webconsole/test/browser_console_dead_objects.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,91 @@
     1.4 +/*
     1.5 + * Any copyright is dedicated to the Public Domain.
     1.6 + * http://creativecommons.org/publicdomain/zero/1.0/
     1.7 + */
     1.8 +
     1.9 +// Check that Dead Objects do not break the Web/Browser Consoles. See bug 883649.
    1.10 +// This test does:
    1.11 +// - opens a new tab,
    1.12 +// - opens the Browser Console,
    1.13 +// - stores a reference to the content document of the tab on the chrome window object,
    1.14 +// - closes the tab,
    1.15 +// - tries to use the object that was pointing to the now-defunct content
    1.16 +// document. This is the dead object.
    1.17 +
    1.18 +const TEST_URI = "data:text/html;charset=utf8,<p>dead objects!";
    1.19 +
    1.20 +function test()
    1.21 +{
    1.22 +  let hud = null;
    1.23 +
    1.24 +  registerCleanupFunction(() => {
    1.25 +    Services.prefs.clearUserPref("devtools.chrome.enabled");
    1.26 +  });
    1.27 +
    1.28 +  Task.spawn(runner).then(finishTest);
    1.29 +
    1.30 +  function* runner() {
    1.31 +    Services.prefs.setBoolPref("devtools.chrome.enabled", true);
    1.32 +    let {tab} = yield loadTab(TEST_URI);
    1.33 +
    1.34 +    info("open the browser console");
    1.35 +
    1.36 +    hud = yield HUDService.toggleBrowserConsole();
    1.37 +    ok(hud, "browser console opened");
    1.38 +
    1.39 +    hud.jsterm.clearOutput();
    1.40 +
    1.41 +    // Add the reference to the content document.
    1.42 +
    1.43 +    yield execute("Cu = Components.utils;" +
    1.44 +                  "Cu.import('resource://gre/modules/Services.jsm');" +
    1.45 +                  "chromeWindow = Services.wm.getMostRecentWindow('navigator:browser');" +
    1.46 +                  "foobarzTezt = chromeWindow.content.document;" +
    1.47 +                  "delete chromeWindow");
    1.48 +
    1.49 +    gBrowser.removeCurrentTab();
    1.50 +
    1.51 +    let msg = yield execute("foobarzTezt");
    1.52 +
    1.53 +    isnot(hud.outputNode.textContent.indexOf("[object DeadObject]"), -1,
    1.54 +          "dead object found");
    1.55 +
    1.56 +    hud.jsterm.setInputValue("foobarzTezt");
    1.57 +
    1.58 +    for (let c of ".hello") {
    1.59 +      EventUtils.synthesizeKey(c, {}, hud.iframeWindow);
    1.60 +    }
    1.61 +
    1.62 +    yield execute();
    1.63 +
    1.64 +    isnot(hud.outputNode.textContent.indexOf("can't access dead object"), -1,
    1.65 +          "'cannot access dead object' message found");
    1.66 +
    1.67 +    // Click the second execute output.
    1.68 +    let clickable = msg.querySelector("a");
    1.69 +    ok(clickable, "clickable object found");
    1.70 +    isnot(clickable.textContent.indexOf("[object DeadObject]"), -1,
    1.71 +          "message text check");
    1.72 +
    1.73 +    msg.scrollIntoView();
    1.74 +
    1.75 +    executeSoon(() => {
    1.76 +      EventUtils.synthesizeMouseAtCenter(clickable, {}, hud.iframeWindow);
    1.77 +    });
    1.78 +
    1.79 +    yield hud.jsterm.once("variablesview-fetched");
    1.80 +    ok(true, "variables view fetched");
    1.81 +
    1.82 +    msg = yield execute("delete window.foobarzTezt; 2013-26");
    1.83 +
    1.84 +    isnot(msg.textContent.indexOf("1987"), -1, "result message found");
    1.85 +  }
    1.86 +
    1.87 +  function execute(str) {
    1.88 +    let deferred = promise.defer();
    1.89 +    hud.jsterm.execute(str, (msg) => {
    1.90 +      deferred.resolve(msg);
    1.91 +    });
    1.92 +    return deferred.promise;
    1.93 +  }
    1.94 +}

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