tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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browser_console_devtools_loader_exception.js (3022B)

      1 /* Any copyright is dedicated to the Public Domain.
      2 * http://creativecommons.org/publicdomain/zero/1.0/ */
      3 
      4 // Check that exceptions from scripts loaded with the DevTools loader are
      5 // opened correctly in View Source from the Browser Console.
      6 
      7 "use strict";
      8 
      9 const TEST_URI =
     10  "data:text/html;charset=utf8,<!DOCTYPE html><p>browser_console_devtools_loader_exception.js</p>";
     11 
     12 add_task(async function () {
     13  // Disable the preloaded process as it creates processes intermittently
     14  // which forces the emission of RDP requests we aren't correctly waiting for.
     15  await pushPref("dom.ipc.processPrelaunch.enabled", false);
     16  await pushPref("devtools.browsertoolbox.scope", "everything");
     17 
     18  const wcHud = await openNewTabAndConsole(TEST_URI);
     19  ok(wcHud, "web console opened");
     20 
     21  const bcHud = await BrowserConsoleManager.toggleBrowserConsole();
     22  ok(bcHud, "browser console opened");
     23 
     24  // Cause an exception in a script loaded with the DevTools loader.
     25  const toolbox = wcHud.toolbox;
     26  const oldPanels = toolbox._toolPanels;
     27  // non-iterable
     28  toolbox._toolPanels = {};
     29 
     30  function fixToolbox() {
     31    toolbox._toolPanels = oldPanels;
     32  }
     33 
     34  info("generate exception and wait for message");
     35 
     36  executeSoon(() => {
     37    expectUncaughtException();
     38    executeSoon(fixToolbox);
     39    toolbox.getToolPanels();
     40  });
     41 
     42  const msg = await waitFor(() =>
     43    findErrorMessage(bcHud, "TypeError: this._toolPanels is not iterable")
     44  );
     45 
     46  fixToolbox();
     47 
     48  ok(msg, `Message found: "TypeError: this._toolPanels is not iterable"`);
     49 
     50  const locationNode = msg.querySelector(
     51    ".message-location .frame-link-source"
     52  );
     53  ok(locationNode, "Message location link element found");
     54 
     55  const url = locationNode.href;
     56  info("view-source url: " + url);
     57  ok(url, "we have some source URL after the click");
     58  ok(url.includes("toolbox.js"), "we have the expected view source URL");
     59  ok(!url.includes("->"), "no -> in the URL given to view-source");
     60 
     61  const { targetCommand } = bcHud.commands;
     62  // If Fission is not enabled for the Browser Console (e.g. in Beta at this moment),
     63  // the target list won't watch for Frame targets, and as a result we won't have issues
     64  // with pending connections to the server that we're observing when attaching the target.
     65  const onViewSourceTargetAvailable = new Promise(resolve => {
     66    const onAvailable = ({ targetFront }) => {
     67      if (targetFront.url.includes("view-source:")) {
     68        targetCommand.unwatchTargets({
     69          types: [targetCommand.TYPES.FRAME],
     70          onAvailable,
     71        });
     72        resolve();
     73      }
     74    };
     75    targetCommand.watchTargets({
     76      types: [targetCommand.TYPES.FRAME],
     77      onAvailable,
     78    });
     79  });
     80 
     81  const onTabOpen = BrowserTestUtils.waitForNewTab(
     82    gBrowser,
     83    tabUrl => tabUrl.startsWith("view-source:"),
     84    true
     85  );
     86  locationNode.click();
     87 
     88  await onTabOpen;
     89  ok(true, "The view source tab was opened in response to clicking the link");
     90 
     91  info("Wait for the frame target to be available");
     92  await onViewSourceTargetAvailable;
     93 });