gecko/browser/devtools/debugger/test/browser_dbg_leaktest.js

/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

/**
 * This tests if the debugger leaks.
 * If leaks happen here, there's something very, very fishy going on.
 */

const TAB_URL = EXAMPLE_URL + "browser_dbg_script-switching.html";

let gPane = null;
let gTab = null;
let gDebuggee = null;
let gDebugger = null;

function test()
{
  let scriptShown = false;
  let framesAdded = false;
  let resumed = false;
  let testStarted = false;

  debug_tab_pane(TAB_URL, function(aTab, aDebuggee, aPane) {
    gTab = aTab;
    gDebuggee = aDebuggee;
    gPane = aPane;
    gDebugger = gPane.contentWindow;
    resumed = true;

    gDebugger.DebuggerController.activeThread.addOneTimeListener("framesadded", function() {
      framesAdded = true;
      executeSoon(startTest);
    });

    executeSoon(function() {
      gDebuggee.firstCall();
    });
  });

  function onScriptShown(aEvent)
  {
    scriptShown = aEvent.detail.url.indexOf("-02.js") != -1;
    executeSoon(startTest);
  }

  window.addEventListener("Debugger:ScriptShown", onScriptShown);

  function startTest()
  {
    if (scriptShown && framesAdded && resumed && !testStarted) {
      window.removeEventListener("Debugger:ScriptShown", onScriptShown);
      testStarted = true;
      Services.tm.currentThread.dispatch({ run: performTest }, 0);
    }
  }

  function performTest()
  {
    closeDebuggerAndFinish();
  }

  registerCleanupFunction(function() {
    removeTab(gTab);
    gPane = null;
    gTab = null;
    gDebuggee = null;
    gDebugger = null;
  });
}