gecko/browser/components/customizableui/test/browser_947914_button_zoomOut.js

39 lines
1.2 KiB
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";
let initialPageZoom = ZoomManager.zoom;
add_task(function() {
info("Check zoom out button existence and functionality");
is(initialPageZoom, 1, "Initial zoom factor should be 1");
yield PanelUI.show();
info("Menu panel was opened");
let zoomOutButton = document.getElementById("zoom-out-button");
ok(zoomOutButton, "Zoom out button exists in Panel Menu");
zoomOutButton.click();
let pageZoomLevel = Math.round(ZoomManager.zoom * 100);
let zoomResetButton = document.getElementById("zoom-reset-button");
let expectedZoomLevel = parseInt(zoomResetButton.getAttribute("label"), 10);
ok(pageZoomLevel < 100 && pageZoomLevel == expectedZoomLevel, "Page zoomed out correctly");
// close the panel
let panelHiddenPromise = promisePanelHidden(window);
PanelUI.hide();
yield panelHiddenPromise;
info("Menu panel was closed");
});
add_task(function asyncCleanup() {
// reset zoom level
ZoomManager.zoom = initialPageZoom;
info("Zoom level was restored");
});