fune/devtools/shared/tests/xpcshell/test_eventemitter_destroy.js

32 lines
850 B
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
add_task(function() {
const { DevToolsLoader, require } = ChromeUtils.import(
"resource://devtools/shared/loader/Loader.jsm"
);
// Force-load the module once in the global loader to avoid Bug 1622718.
require("devtools/shared/event-emitter");
const emitterRef = (function() {
const loader = new DevToolsLoader();
const ref = Cu.getWeakReference(
loader.require("resource://devtools/shared/event-emitter.js")
);
loader.destroy();
return ref;
})();
Cu.forceGC();
Cu.forceCC();
Cu.forceGC();
Cu.forceCC();
Assert.ok(!emitterRef.get(), "weakref has been cleared by gc");
});