gecko-dev/dom/tests/unit/test_geolocation_reset_accuracy_wrap.js

const Cc = Components.classes;
const Ci = Components.interfaces;

const providerCID = Components.ID("{14aa4b81-e266-45cb-88f8-89595dece114}");
const providerContract = "@mozilla.org/geolocation/provider;1";

const categoryName = "geolocation-provider";

var provider = {
  QueryInterface: function eventsink_qi(iid) {
    if (iid.equals(Components.interfaces.nsISupports) ||
        iid.equals(Components.interfaces.nsIFactory) ||
        iid.equals(Components.interfaces.nsIGeolocationProvider))
      return this;
    throw Components.results.NS_ERROR_NO_INTERFACE;
  },
  createInstance: function eventsink_ci(outer, iid) {
    if (outer)
      throw Components.results.NS_ERROR_NO_AGGREGATION;
    return this.QueryInterface(iid);
  },
  lockFactory: function eventsink_lockf(lock) {
    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
  },
  startup: function() {
  },
  watch: function() {
  },
  shutdown: function() {
  },
  setHighAccuracy: function(enable) {
    this._isHigh = enable;
    if (enable) {
      this._seenHigh = true;
      do_send_remote_message('high_acc_enabled');
    }
  },
  _isHigh: false,
  _seenHigh: false
};

function run_test()
{
  // XPCShell does not get a profile by default. The geolocation service
  // depends on the settings service which uses IndexedDB and IndexedDB
  // needs a place where it can store databases.
  do_get_profile();

  Components.manager.nsIComponentRegistrar.registerFactory(providerCID,
    "Unit test geo provider", providerContract, provider);
  var catMan = Components.classes["@mozilla.org/categorymanager;1"]
                         .getService(Components.interfaces.nsICategoryManager);
  catMan.nsICategoryManager.addCategoryEntry(categoryName, "unit test",
                                             providerContract, false, true);

  var prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
  prefs.setBoolPref("dom.testing.ignore_ipc_principal", true);
  prefs.setBoolPref("geo.wifi.scan", false);

  run_test_in_child("test_geolocation_reset_accuracy.js", check_results);
}

function check_results()
{
  // check the provider was set to high accuracy during the test
  do_check_true(provider._seenHigh);
  // check the provider is not currently set to high accuracy
  do_check_false(provider._isHigh);

  do_test_finished();
}