mirror of
https://github.com/GSA/notifications-admin.git
synced 2026-06-06 06:20:53 -04:00
rm updateContent.js
This commit is contained in:
Beverly Nguyen
@@ -1,148 +0,0 @@
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(function(global) {
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"use strict";
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var queues = {};
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var morphdom = global.GOVUK.vendor.morphdom;
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var defaultInterval = 2000;
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var interval = 0;
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var calculateBackoff = responseTime => parseInt(Math.max(
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(250 * Math.sqrt(responseTime)) - 1000,
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1000
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));
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// Methods to ensure the DOM fragment is clean of classes added by JS before diffing
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// and that they are replaced afterwards.
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//
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// Added to allow the use of JS, in main.js, to apply styles which in future could be
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// achieved with the :has pseudo-class. If :has is available in our supported browsers,
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// this can be removed in favour of a CSS-only solution.
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var ClassesPersister = function ($contents) {
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this._$contents = $contents;
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this._classNames = [];
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this._classesTo$ElsMap = {};
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};
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ClassesPersister.prototype.addClassName = function (className) {
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if (this._classNames.indexOf(className) === -1) {
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this._classNames.push(className);
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}
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};
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ClassesPersister.prototype.remove = function () {
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// Store references to any elements with class names to persist
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this._classNames.forEach(className => {
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var $elsWithClassName = $('.' + className, this._$contents).removeClass(className);
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if ($elsWithClassName.length > 0) {
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this._classesTo$ElsMap[className] = $elsWithClassName;
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}
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});
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};
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ClassesPersister.prototype.replace = function () {
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var replaceClasses = (idx, el) => {
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// Avoid updating elements that are no longer present.
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// elements removed will still exist in memory but won't be attached to the DOM any more
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if (global.document.body.contains(el)) {
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$(el).addClass(className);
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}
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};
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var className;
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for (className in this._classesTo$ElsMap) {
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this._classesTo$ElsMap[className].each(replaceClasses);
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}
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// remove references to elements
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this._classesTo$ElsMap = {};
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};
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var getRenderer = ($contents, key, classesPersister) => response => {
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classesPersister.remove();
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morphdom(
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$contents.get(0),
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$(response[key]).get(0)
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);
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classesPersister.replace();
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};
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var getQueue = resource => (
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queues[resource] = queues[resource] || []
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);
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var flushQueue = function(queue, response) {
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while(queue.length) queue.shift()(response);
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};
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var clearQueue = queue => (queue.length = 0);
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var poll = function(renderer, resource, queue, form) {
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let startTime = Date.now();
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if (document.visibilityState !== "hidden" && queue.push(renderer) === 1) {
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$.ajax(
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resource,
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{
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'method': form ? 'post' : 'get',
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'data': form ? $('#' + form).serialize() : {}
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}
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).done(
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response => {
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flushQueue(queue, response);
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if (response.stop === 1) {
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poll = function(){};
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}
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interval = calculateBackoff(Date.now() - startTime);
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}
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).fail(
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() => poll = function(){}
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);
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}
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setTimeout(
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() => poll.apply(window, arguments), interval
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);
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};
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global.GOVUK.Modules.UpdateContent = function() {
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this.start = component => {
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var $component = $(component);
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var $contents = $component.children().eq(0);
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var key = $component.data('key');
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var resource = $component.data('resource');
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var form = $component.data('form');
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var classesPersister = new ClassesPersister($contents);
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// Replace component with contents.
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// The renderer does this anyway when diffing against the first response
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$component.replaceWith($contents);
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// Store any classes that should persist through updates
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//
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// Added to allow the use of JS, in main.js, to apply styles which in future could be
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// achieved with the :has pseudo-class. If :has is available in our supported browsers,
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// this can be removed in favour of a CSS-only solution.
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if ($contents.data('classesToPersist') !== undefined) {
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$contents.data('classesToPersist')
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.split(' ')
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.forEach(className => classesPersister.addClassName(className));
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}
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setTimeout(
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() => poll(
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getRenderer($contents, key, classesPersister),
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resource,
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getQueue(resource),
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form
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),
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defaultInterval
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);
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};
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};
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global.GOVUK.Modules.UpdateContent.calculateBackoff = calculateBackoff;
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})(window);
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@@ -60,7 +60,6 @@ const javascripts = () => {
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paths.src + 'javascripts/enhancedTextbox.js',
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paths.src + 'javascripts/fileUpload.js',
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paths.src + 'javascripts/radioSelect.js',
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paths.src + 'javascripts/updateContent.js',
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paths.src + 'javascripts/listEntry.js',
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paths.src + 'javascripts/liveSearch.js',
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paths.src + 'javascripts/errorTracking.js',
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@@ -1,513 +0,0 @@
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const each = require('jest-each').default;
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const helpers = require('./support/helpers.js');
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const serviceNumber = '6658542f-0cad-491f-bec8-ab8457700ead';
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const resourceURL = `/services/${serviceNumber}/notifications/email.json?status=sending%2Cdelivered%2Cfailed`;
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const updateKey = 'counts';
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let responseObj = {};
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let jqueryAJAXReturnObj;
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beforeAll(() => {
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// ensure all timers go through Jest
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jest.useFakeTimers();
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// mock the bits of jQuery used
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jest.spyOn(window.$, 'ajax');
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// set up the object returned from $.ajax so it responds with whatever responseObj is set to
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jqueryAJAXReturnObj = {
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done: callback => {
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// The server takes 1 second to respond
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jest.advanceTimersByTime(1000);
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callback(responseObj);
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return jqueryAJAXReturnObj;
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},
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fail: () => {}
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};
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$.ajax.mockImplementation(() => jqueryAJAXReturnObj);
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// RollupJS assigns our bundled module code, including morphdom, to window.GOVUK.
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// morphdom is assigned to its vendor property so we need to copy that here for the updateContent
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// code to pick it up.
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window.GOVUK.vendor = {
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morphdom: require('morphdom')
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};
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require('../../app/assets/javascripts/updateContent.js');
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});
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afterAll(() => {
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require('./support/teardown.js');
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});
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describe('Update content', () => {
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const getInitialHTMLString = partial => `
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<div data-module="update-content" data-resource="${resourceURL}" data-key="${updateKey}">
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${partial}
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</div>`;
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describe("All variations", () => {
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beforeEach(() => {
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// Intentionally basic example because we're not testing changes to the partial
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document.body.innerHTML = getInitialHTMLString(`<p class="notification-status">Sending</p>`);
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// default the response to match the content inside div[data-module]
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responseObj[updateKey] = `<p class="notification-status">Sending</p>`;
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});
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describe("By default", () => {
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beforeEach(() => {
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// start the module
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window.GOVUK.modules.start();
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});
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test("It should use the GET HTTP method", () => {
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jest.advanceTimersByTime(2000);
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expect($.ajax.mock.calls[0][1].method).toEqual('get');
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});
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test("It shouldn't send any data as part of the requests", () => {
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jest.advanceTimersByTime(2000);
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expect($.ajax.mock.calls[0][1].data).toEqual({});
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});
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test("It should request updates with a dynamic interval", () => {
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// First call doesn’t happen in the first 2000ms
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jest.advanceTimersByTime(1999);
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expect($.ajax).toHaveBeenCalledTimes(0);
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// But it happens after 2000ms by default
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jest.advanceTimersByTime(1);
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expect($.ajax).toHaveBeenCalledTimes(1);
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// It took the server 1000ms to respond to the first call so we
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// will back off – the next call shouldn’t happen in the next 6904ms
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jest.advanceTimersByTime(6904);
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expect($.ajax).toHaveBeenCalledTimes(1);
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// But it should happen after 6905ms
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jest.advanceTimersByTime(1);
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expect($.ajax).toHaveBeenCalledTimes(2);
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});
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each([
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[1000, 0],
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[1500, 100],
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[4590, 500],
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[6905, 1000],
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[24000, 10000],
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]).test('It calculates a delay of %dms if the API responds in %dms', (waitTime, responseTime) => {
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expect(
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window.GOVUK.Modules.UpdateContent.calculateBackoff(responseTime)
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).toBe(
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waitTime
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);
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});
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});
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describe("If a form is used as a source for data, referenced in the data-form attribute", () => {
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beforeEach(() => {
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// Add a form to the page
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document.body.innerHTML += `
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<form method="post" id="service">
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<input type="hidden" name="serviceName" value="Buckhurst surgery" />
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<input type="hidden" name="serviceNumber" value="${serviceNumber}" />
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</form>`;
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// Link the component to the form
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document.querySelector('[data-module=update-content]').setAttribute('data-form', 'service');
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// start the module
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window.GOVUK.modules.start();
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});
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test("requests should use the same HTTP method as the form", () => {
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jest.advanceTimersByTime(2000);
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expect($.ajax.mock.calls[0][1].method).toEqual('post');
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})
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test("requests should use the data from the form", () => {
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jest.advanceTimersByTime(2000);
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expect($.ajax.mock.calls[0][1].data).toEqual(helpers.getFormDataFromPairs([
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['serviceName', 'Buckhurst surgery'],
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['serviceNumber', serviceNumber]
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]));
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})
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});
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});
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describe('When updating the contents of DOM nodes', () => {
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let partialData;
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const getPartial = items => {
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let pillsHTML = '';
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items.forEach(item => {
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pillsHTML += `
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<li ${item.selected ? 'aria-selected="true"' : ''} role="tab">
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<div ${item.selected ? 'class="pill-selected-item" tabindex="0"' : ''}>
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<div class="big-number-smaller">
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<div class="big-number-number">${item.count}</div>
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</div>
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<div class="pill-label">${item.label}</div>
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</div>
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</li>`;
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});
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return `
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<div class="tabs ajax-block-container">
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<ul role="tablist" class="pill">
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${pillsHTML}
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</ul>
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</div>`;
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};
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beforeEach(() => {
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partialData = [
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{
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count: 0,
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label: 'total',
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selected: true
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},
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{
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count: 0,
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label: 'sending',
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selected: false
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},
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{
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count: 0,
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label: 'delivered',
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selected: false
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},
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{
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count: 0,
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label: 'failed',
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selected: false
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}
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];
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document.body.innerHTML = getInitialHTMLString(getPartial(partialData));
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|
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});
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test("It should replace the original HTML with that of the partial, to match that returned from AJAX responses", () => {
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// default the response to match the content inside div[data-module]
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responseObj[updateKey] = getPartial(partialData);
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|
||||
// start the module
|
||||
window.GOVUK.modules.start();
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||||
|
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expect(document.querySelector('.ajax-block-container').parentNode.hasAttribute('data-resource')).toBe(false);
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||||
|
||||
});
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||||
|
||||
test("It should make requests to the URL specified in the data-resource attribute", () => {
|
||||
|
||||
// default the response to match the content inside div[data-module]
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
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jest.advanceTimersByTime(2000);
|
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|
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expect($.ajax.mock.calls[0][0]).toEqual(resourceURL);
|
||||
|
||||
});
|
||||
|
||||
test("If the response contains no changes, the DOM should stay the same", () => {
|
||||
|
||||
// send the done callback a response with updates included
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// check a sample DOM node is unchanged
|
||||
expect(document.querySelectorAll('.big-number-number')[0].textContent.trim()).toEqual("0");
|
||||
|
||||
});
|
||||
|
||||
test("If the response contains changes, it should update the DOM with them", () => {
|
||||
|
||||
partialData[0].count = 1;
|
||||
|
||||
// send the done callback a response with updates included
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// check the right DOM node is updated
|
||||
expect(document.querySelectorAll('.big-number-number')[0].textContent.trim()).toEqual("1");
|
||||
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
describe("When adding or removing DOM nodes", () => {
|
||||
|
||||
let partialData;
|
||||
|
||||
const getPartial = items => {
|
||||
|
||||
const getItemHTMLString = content => {
|
||||
var areas = '';
|
||||
|
||||
content.areas.forEach(area =>
|
||||
areas += "\n" + `<li class="area-list-item area-list-item--unremoveable area-list-item--smaller">${area}</li>`
|
||||
);
|
||||
|
||||
return `
|
||||
<div class="keyline-block">
|
||||
<div class="file-list govuk-!-margin-bottom-2">
|
||||
<h2>
|
||||
<a class="file-list-filename-large usa-link" href="/services/7597847f-ad8e-4600-8faf-c42a647d8dee/current-alerts/b9e53cda-54f9-47bc-9fb2-b78a11eda6a9">${content.title}</a>
|
||||
</h2>
|
||||
<div class="govuk-grid-row">
|
||||
<div class="grid-col-6">
|
||||
<span class="file-list-hint-large govuk-!-margin-bottom-2">
|
||||
${content.hint}
|
||||
</span>
|
||||
</div>
|
||||
<div class="grid-col-6 file-list-status">
|
||||
<p class="usa-body govuk-!-margin-bottom-0 usa-hint">
|
||||
${content.status}
|
||||
</p>
|
||||
</div>
|
||||
</div>
|
||||
<ul class="area-list">
|
||||
${areas}
|
||||
</ul>
|
||||
</div>
|
||||
</div>`;
|
||||
};
|
||||
|
||||
var itemsHTMLString = '';
|
||||
|
||||
items.forEach(item => itemsHTMLString += "\n" + getItemHTMLString(item));
|
||||
|
||||
return `<div class="ajax-block-container">
|
||||
${itemsHTMLString};
|
||||
<div class="keyline-block"></div>
|
||||
</div>`;
|
||||
|
||||
};
|
||||
|
||||
beforeEach(() => {
|
||||
|
||||
partialData = [
|
||||
{
|
||||
title: "Gas leak",
|
||||
hint: "There's a gas leak in the local area. Residents should vacate until further notice.",
|
||||
status: "Waiting for approval",
|
||||
areas: [
|
||||
"Santa Claus Village, Rovaniemi B",
|
||||
"Santa Claus Village, Rovaniemi C"
|
||||
]
|
||||
}
|
||||
];
|
||||
|
||||
});
|
||||
|
||||
test("If the response contains no changes, the DOM should stay the same", () => {
|
||||
|
||||
document.body.innerHTML = getInitialHTMLString(getPartial(partialData));
|
||||
|
||||
// make a response with no changes
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// check it has the same number of items
|
||||
expect(document.querySelectorAll('.file-list').length).toEqual(1);
|
||||
expect(document.querySelectorAll('.file-list h2 a')[0].textContent.trim()).toEqual("Gas leak");
|
||||
|
||||
});
|
||||
|
||||
test("If the response adds a node, the DOM should contain that node", () => {
|
||||
|
||||
document.body.innerHTML = getInitialHTMLString(getPartial(partialData));
|
||||
|
||||
partialData.push({
|
||||
title: "Reservoir flooding template",
|
||||
hint: "The local reservoir has flooded. All people within 5 miles should move to a safer location.",
|
||||
status: "Waiting for approval",
|
||||
areas: [
|
||||
"Santa Claus Village, Rovaniemi A",
|
||||
"Santa Claus Village, Rovaniemi D"
|
||||
]
|
||||
});
|
||||
|
||||
// make the response have an extra item
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// check the node has been added
|
||||
expect(document.querySelectorAll('.file-list').length).toEqual(2);
|
||||
expect(document.querySelectorAll('.file-list h2 a')[0].textContent.trim()).toEqual("Gas leak");
|
||||
expect(document.querySelectorAll('.file-list h2 a')[1].textContent.trim()).toEqual("Reservoir flooding template");
|
||||
|
||||
});
|
||||
|
||||
test("If the response removes a node, the DOM should not contain that node", () => {
|
||||
|
||||
// add another item so we start with 2
|
||||
partialData.push({
|
||||
title: "Reservoir flooding template",
|
||||
hint: "The local reservoir has flooded. All people within 5 miles should move to a safer location.",
|
||||
status: "Waiting for approval",
|
||||
areas: [
|
||||
"Santa Claus Village, Rovaniemi A",
|
||||
"Santa Claus Village, Rovaniemi D"
|
||||
]
|
||||
});
|
||||
|
||||
document.body.innerHTML = getInitialHTMLString(getPartial(partialData));
|
||||
|
||||
// remove the last item
|
||||
partialData.pop();
|
||||
|
||||
// default the response to match the content inside div[data-module]
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// check the node has been removed
|
||||
expect(document.querySelectorAll('.file-list').length).toEqual(1);
|
||||
expect(document.querySelectorAll('.file-list h2 a')[0].textContent.trim()).toEqual("Gas leak");
|
||||
|
||||
});
|
||||
|
||||
test("If other scripts have added classes to the DOM, they should persist through updates to a single component", () => {
|
||||
|
||||
document.body.innerHTML = getInitialHTMLString(getPartial(partialData));
|
||||
|
||||
// mark classes to persist on the partial
|
||||
document.querySelector('.ajax-block-container').setAttribute('data-classes-to-persist', 'js-child-has-focus');
|
||||
|
||||
// Add class to indicate focus state of link on parent heading
|
||||
document.querySelectorAll('.file-list h2')[0].classList.add('js-child-has-focus');
|
||||
|
||||
// Add an item to trigger an update
|
||||
partialData.push({
|
||||
title: "Reservoir flooding template",
|
||||
hint: "The local reservoir has flooded. All people within 5 miles should move to a safer location.",
|
||||
status: "Waiting for approval",
|
||||
areas: [
|
||||
"Santa Claus Village, Rovaniemi A",
|
||||
"Santa Claus Village, Rovaniemi D"
|
||||
]
|
||||
});
|
||||
|
||||
// make the response have an extra item
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// check the class is still there
|
||||
expect(document.querySelectorAll('.file-list h2')[0].classList.contains('js-child-has-focus')).toBe(true);
|
||||
|
||||
});
|
||||
|
||||
test("If other scripts have added classes to the DOM, they should persist through updates to multiple components", () => {
|
||||
|
||||
// Create duplicate components in the page
|
||||
document.body.innerHTML = getInitialHTMLString(getPartial(partialData)) + "\n" + getInitialHTMLString(getPartial(partialData));
|
||||
|
||||
var partialsInPage = document.querySelectorAll('.ajax-block-container');
|
||||
|
||||
// Mark classes to persist on the partials (2nd is made up)
|
||||
partialsInPage[0].setAttribute('data-classes-to-persist', 'js-child-has-focus');
|
||||
partialsInPage[1].setAttribute('data-classes-to-persist', 'js-2nd-child-has-focus');
|
||||
|
||||
// Add examples of those classes on each partial (2nd is made up)
|
||||
partialsInPage[0].querySelectorAll('.file-list h2')[0].classList.add('js-child-has-focus');
|
||||
partialsInPage[1].querySelectorAll('.file-list h2')[0].classList.add('js-2nd-child-has-focus');
|
||||
|
||||
// Add an item to trigger an update
|
||||
partialData.push({
|
||||
title: "Reservoir flooding template",
|
||||
hint: "The local reservoir has flooded. All people within 5 miles should move to a safer location.",
|
||||
status: "Waiting for approval",
|
||||
areas: [
|
||||
"Santa Claus Village, Rovaniemi A",
|
||||
"Santa Claus Village, Rovaniemi D"
|
||||
]
|
||||
});
|
||||
|
||||
// make all responses have an extra item
|
||||
responseObj[updateKey] = getPartial(partialData);
|
||||
|
||||
// start the module
|
||||
window.GOVUK.modules.start();
|
||||
jest.advanceTimersByTime(2000);
|
||||
|
||||
// re-select in case nodes in partialsInPage have changed
|
||||
partialsInPage = document.querySelectorAll('.ajax-block-container');
|
||||
|
||||
// check the classes are still there
|
||||
expect(partialsInPage[0].querySelectorAll('.file-list h2')[0].classList.contains('js-child-has-focus')).toBe(true);
|
||||
expect(partialsInPage[1].querySelectorAll('.file-list h2')[0].classList.contains('js-2nd-child-has-focus')).toBe(true);
|
||||
|
||||
// check each heading only has the classes assigned to it before updates occurred
|
||||
expect(partialsInPage[0].querySelectorAll('.file-list h2')[0].classList.contains('js-2nd-child-has-focus')).toBe(false);
|
||||
expect(partialsInPage[1].querySelectorAll('.file-list h2')[0].classList.contains('js-child-has-focus')).toBe(false);
|
||||
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
|
||||
document.body.innerHTML = '';
|
||||
|
||||
// tidy up record of mocked AJAX calls
|
||||
$.ajax.mockClear();
|
||||
|
||||
// ensure any timers set by continually starting the module are cleared
|
||||
jest.clearAllTimers();
|
||||
|
||||
});
|
||||
|
||||
});
|
||||
Reference in New Issue
Block a user