"use strict"; async function installFile(filename) { const ChromeRegistry = Cc["@mozilla.org/chrome/chrome-registry;1"].getService( Ci.nsIChromeRegistry ); let chromeUrl = Services.io.newURI(gTestPath); let fileUrl = ChromeRegistry.convertChromeURL(chromeUrl); let file = fileUrl.QueryInterface(Ci.nsIFileURL).file; file.leafName = filename; let MockFilePicker = SpecialPowers.MockFilePicker; MockFilePicker.init(window); MockFilePicker.setFiles([file]); MockFilePicker.afterOpenCallback = MockFilePicker.cleanup; let { document } = await BrowserOpenAddonsMgr("addons://list/extension"); // Do the install... await waitAboutAddonsViewLoaded(document); let installButton = document.querySelector('[action="install-from-file"]'); installButton.click(); } add_task(async function test_install_extension_from_local_file() { // Listen for the first installId so we can check it later. let firstInstallId = null; AddonManager.addInstallListener({ onNewInstall(install) { firstInstallId = install.installId; AddonManager.removeInstallListener(this); }, }); // Install the add-ons. await testInstallMethod(installFile, "installLocal"); // Check we got an installId. ok( firstInstallId != null && !isNaN(firstInstallId), "There was an installId found" ); });