UXP-Fixed/toolkit/mozapps/webextensions/test/browser/browser_webapi_enable.js

const TESTPAGE = `${SECURE_TESTROOT}webapi_addon_listener.html`;

Services.prefs.setBoolPref("extensions.webapi.testing", true);
registerCleanupFunction(() => {
  Services.prefs.clearUserPref("extensions.webapi.testing");
});

function* getListenerEvents(browser) {
  let result = yield ContentTask.spawn(browser, null, function*() {
    return content.document.getElementById("result").textContent;
  });

  return result.split('\n').map(JSON.parse);
}

const ID = "test@tests.mozilla.org";

let provider = new MockProvider(false);
provider.createAddons([
  {
    id: ID,
    name: "Test add-on",
    operationsRequiringRestart: AddonManager.OP_NEED_RESTART_NONE,
  },
]);

// Test disable and enable from content
add_task(function* () {
  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
    let addon = yield promiseAddonByID(ID);
    isnot(addon, null, "Test addon exists");
    is(addon.userDisabled, false, "addon is enabled");

    // Disable the addon from content.
    yield ContentTask.spawn(browser, null, function* () {
      return content.navigator.mozAddonManager
        .getAddonByID("test@tests.mozilla.org")
        .then(addon => { addon.setEnabled(false); });
    });

    let events = yield getListenerEvents(browser);
    let expected = [
      {id: ID, needsRestart: false, event: "onDisabling"},
      {id: ID, needsRestart: false, event: "onDisabled"},
    ];
    Assert.deepEqual(events, expected, "Got expected disable events");

    // Enable the addon from content.
    yield ContentTask.spawn(browser, null, function* () {
      return content.navigator.mozAddonManager
        .getAddonByID("test@tests.mozilla.org")
        .then(addon => { addon.setEnabled(true); });
    });

    events = yield getListenerEvents(browser);
    expected = expected.concat([
      {id: ID, needsRestart: false, event: "onEnabling"},
      {id: ID, needsRestart: false, event: "onEnabled"},
    ]);
    Assert.deepEqual(events, expected, "Got expected enable events");
  });
});