text: const helpers = require('./support/helpers');
  
  beforeAll(() => {
  
    require('../../app/assets/javascripts/govuk/cookie-functions.js');
    require('../../app/assets/javascripts/analytics/analytics.js');
    require('../../app/assets/javascripts/analytics/init.js');
    require('../../app/assets/javascripts/cookieMessage.js');
  
  });
  
  afterAll(() => {
  
    require('./support/teardown.js');
  
  });
  
  describe("Cookie message", () => {
  
    let cookieMessage;
  
    beforeAll(() => {
  
      const cookieMessageStyles = document.createElement('style');
  
      // add the CSS that hides the cookie message by default
      cookieMessageStyles.textContent = '.notify-cookie-banner { display: none; }';
      document.getElementsByTagName('head')[0].appendChild(cookieMessageStyles);
  
      // protect against any previous tests setting a cookies-policy cookie
      helpers.deleteCookie('cookies-policy');
  
    });
  
    beforeEach(() => {
  
      // add the script GA looks for in the document
      document.body.appendChild(document.createElement('script'));
  
      jest.spyOn(window.GOVUK, 'initAnalytics');
  
      cookieMessage = `
        <div id="global-cookie-message" class="notify-cookie-banner" data-module="cookie-banner" role="region" aria-label="cookie banner" data-nosnippet="">
          <div class="notify-cookie-banner__wrapper govuk-width-container govuk-!-padding-4">
            <h2 class="notify-cookie-banner__heading govuk-heading-m">Cookies on GOV.UK Notify</h2>
            <p class="notify-cookie-banner__message govuk-body">We use <a class="govuk-link govuk-link--no-visited-state" href="/cookies">small files called cookies</a> to make GOV.UK Notify work.</p>
            <div class="notify-cookie-banner__buttons notify-cookie-banner__no-js">
              <div class="notify-cookie-banner__button">
                <a href="/cookies" class="govuk-button notify-cookie-banner-button--inline" role="button" data-accept-cookies="true">Set cookie preferences</a>
              </div>
            </div>
            <div class="notify-cookie-banner__with-js">
              <p class="notify-cookie-banner__message govuk-body">We'd also like to use analytics cookies to help us improve our service.</p>
              <p class="notify-cookie-banner__message govuk-body">Please let us know if this is OK.</p>
              <div class="notify-cookie-banner__buttons">
                <div class="notify-cookie-banner__button notify-cookie-banner__button-accept">
                  <button class="govuk-button notify-cookie-banner-button--secondary notify-cookie-banner-button--inline" type="submit" data-accept-cookies="true">Yes, I accept analytics cookies</button>
                </div>
                <div class="notify-cookie-banner__button notify-cookie-banner__button-reject">
                  <button class="govuk-button notify-cookie-banner-button--secondary notify-cookie-banner-button--inline" type="submit" data-accept-cookies="false">No, do not use analytics cookies</button>
                </div>
              </div>
            </div>
          </div>
          <div class="notify-cookie-banner__confirmation govuk-width-container" tabindex="-1">
            <p class="notify-cookie-banner__confirmation-message govuk-body">
              You can <a class="govuk-link govuk-link--no-visited-state" href="/cookies">change your cookie settings</a> at any time.
            </p>
            <button class="notify-cookie-banner__hide-button" data-hide-cookie-banner="true">Hide</button>
          </div>
        </div>`;
  
      document.body.innerHTML += cookieMessage;
  
    });
  
    afterEach(() => {
  
      document.body.innerHTML = '';
  
      // remove cookie set by tests
      helpers.deleteCookie('cookies_policy');
  
      // reset spies
      window.GOVUK.initAnalytics.mockClear();
  
      // remove analytics tracker
      delete window.GOVUK.analytics;
  
      // reset global variable to state when init.js loaded
      window['ga-disable-UA-26179049-1'] = true;
  
    });
  
    /* 
      Note: If no JS, the cookie banner is hidden.
  
      This works through CSS, based on the presence of the `js-enabled` class on the <body> so is not tested here.
    */
  
    describe("The `clearOldCookies` method", () => {
  
      test("Will clear the seen_cookie_message cookie if it still exists", () => {
  
        // seen_cookie_message was set on the www domain, which setCookie defaults to
        helpers.setCookie('seen_cookie_message', 'true', { 'days': 365 });
  
        window.GOVUK.Modules.CookieBanner.clearOldCookies({ "analytics": false });
  
        expect(window.GOVUK.cookie('seen_cookie_message')).toBeNull();
  
      });
  
      test("Will clear any existing Google Analytics cookies if consent is not set", () => {
  
        // GA cookies are set on the root domain
        helpers.setCookie('_ga', 'GA1.1.123.123', { 'days': 365, 'domain': '.notifications.service.gov.uk' });
        helpers.setCookie('_gid', 'GA1.1.456.456', { 'days': 1, 'domain': '.notifications.service.gov.uk' });
  
        window.GOVUK.Modules.CookieBanner.clearOldCookies(null);
  
        expect(window.GOVUK.cookie('_ga')).toBeNull();
        expect(window.GOVUK.cookie('_gid')).toBeNull();
  
      });
  
      test("Will leave any existing Google Analytics cookies if consent is set", () => {
  
        helpers.setCookie('_ga', 'GA1.1.123.123', { 'days': 365 });
        helpers.setCookie('_gid', 'GA1.1.456.456', { 'days': 1 });
  
        window.GOVUK.Modules.CookieBanner.clearOldCookies({ "analytics": true });
  
        expect(window.GOVUK.cookie('_ga')).not.toBeNull();
        expect(window.GOVUK.cookie('_gid')).not.toBeNull();
  
      });
  
    });
  
    test("If user has made a choice to give their consent or not, the cookie banner should be hidden", () => {
  
      window.GOVUK.setConsentCookie({ 'analytics': false });
  
      window.GOVUK.modules.start()
  
      expect(helpers.element(document.querySelector('.notify-cookie-banner')).is('hidden')).toBe(true);
  
    });
  
    describe("If user hasn't made a choice to give their consent or not", () => {
  
      beforeEach(() => {
  
        window.GOVUK.modules.start();
  
      });
  
      test("The cookie banner should show", () => {
  
        const banner = helpers.element(document.querySelector('.notify-cookie-banner'));
  
        expect(banner.is('hidden')).toBe(false);
  
      });
  
      test("No analytics should run", () => {
  
        expect(window.GOVUK.initAnalytics).not.toHaveBeenCalled();
  
      });
  
      describe("If the user clicks the button to accept analytics", () => {
  
        beforeEach(() => {
  
          const acceptButton = document.querySelector('.notify-cookie-banner__button-accept button');
  
          helpers.triggerEvent(acceptButton, 'click');
  
        });
  
        test("the banner should confirm your choice and link to the cookies page as a way to change your mind", () => {
  
          confirmation = helpers.element(document.querySelector('.notify-cookie-banner__confirmation'));
  
          expect(confirmation.is('hidden')).toBe(false);
          expect(confirmation.el.textContent.trim()).toEqual(expect.stringMatching(/^You’ve accepted analytics cookies/));
  
        });
  
        test("If the user clicks the 'hide' button, the banner should be hidden", () => {
  
          const hideButton = document.querySelector('.notify-cookie-banner__hide-button');
          const banner = helpers.element(document.querySelector('.notify-cookie-banner'));
  
          helpers.triggerEvent(hideButton, 'click');
  
          expect(banner.is('hidden')).toBe(true);
  
        }); 
  
        test("The consent cookie should be set, with analytics set to 'true'", () => {
  
          expect(window.GOVUK.getConsentCookie()).toEqual({ 'analytics': true });
  
        });
  
        test("The analytics should be set up", () => {
  
          expect(window.GOVUK.analytics).toBeDefined();
  
        });
  
      });
  
      describe("If the user clicks the button to reject analytics", () => {
  
        beforeEach(() => {
  
          const rejectButton = document.querySelector('.notify-cookie-banner__button-reject button');
  
          helpers.triggerEvent(rejectButton, 'click');
  
        });
  
        test("the banner should confirm your choice and link to the cookies page as a way to change your mind", () => {
  
          confirmation = helpers.element(document.querySelector('.notify-cookie-banner__confirmation'));
  
          expect(confirmation.is('hidden')).toBe(false);
          expect(confirmation.el.textContent.trim()).toEqual(expect.stringMatching(/^You told us not to use analytics cookies/));
  
        });
  
        test("If the user clicks the 'hide' button, the banner should be hidden", () => {
  
          const hideButton = document.querySelector('.notify-cookie-banner__hide-button');
          const banner = helpers.element(document.querySelector('.notify-cookie-banner'));
  
          helpers.triggerEvent(hideButton, 'click');
  
          expect(banner.is('hidden')).toBe(true);
  
        }); 
  
        test("The consent cookie should be set, with analytics set to 'false'", () => {
  
          expect(window.GOVUK.getConsentCookie()).toEqual({ 'analytics': false });
  
        });
  
        test("The analytics should not be set up", () => {
  
          expect(window.GOVUK.analytics).not.toBeDefined();
  
        });
  
      });
  
    });
  
  });
  