gecko-dev/toolkit/components/antitracking/test/browser/browser_permissionInPrivateWindows.js

/* import-globals-from antitracking_head.js */

AntiTracking.runTest("Test whether we receive any persistent permissions in private windows",
  // Blocking callback
  async _ => {
    // Nothing to do here!
  },

  // Non blocking callback
  async _ => {
  try {
    let Services = SpecialPowers.Services;
    // We would use TEST_3RD_PARTY_DOMAIN here, except that the variable isn't
    // accessible in the context of the web page...
    let uri = Services.io.newURI("https://tracking.example.org/");
    for (let perm of Services.perms.getAllForURI(uri)) {
      // Ignore permissions other than storage access
      if (!perm.type.startsWith("3rdPartyStorage^")) {
        continue;
      }
      is(perm.expireType, Services.perms.EXPIRE_SESSION,
         "Permission must expire at the end of session");
      is(perm.expireTime, 0,
         "Permission must have no expiry time");
    }
  } catch (e) { alert(e); }
  },

  // Cleanup callback
  async _ => {
    await new Promise(resolve => {
      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value => resolve());
    });
  },
  null, // no extra prefs
  true, // run the window.open() test
  true, // run the user interaction test
  0, // don't expect blocking notifications
  true); // run in private windows