chore: update frontend-platform version to v4.2.0

Correct display of the number of days before the
start of the course into the Course Home.

.env

@@ -15,7 +15,6 @@ ECOMMERCE_BASE_URL=''
 ENABLE_JUMPNAV='true'
 ENABLE_NOTICES=''
 ENTERPRISE_LEARNER_PORTAL_HOSTNAME=''
-EXAMS_BASE_URL=''
 FAVICON_URL=''
 IGNORED_ERROR_REGEX=''
 INSIGHTS_BASE_URL=''
@@ -29,8 +28,6 @@ LOGO_WHITE_URL=''
 LEGACY_THEME_NAME=''
 MARKETING_SITE_BASE_URL=''
 ORDER_HISTORY_URL=''
-PROCTORED_EXAM_FAQ_URL=''
-PROCTORED_EXAM_RULES_URL=''
 REFRESH_ACCESS_TOKEN_ENDPOINT=''
 SEARCH_CATALOG_URL=''
 SEGMENT_KEY=''

.env.development

@@ -15,7 +15,6 @@ ECOMMERCE_BASE_URL='http://localhost:18130'
 ENABLE_JUMPNAV='true'
 ENABLE_NOTICES=''
 ENTERPRISE_LEARNER_PORTAL_HOSTNAME='localhost:8734'
-EXAMS_BASE_URL='http://localhost:18740'
 FAVICON_URL=https://edx-cdn.org/v3/default/favicon.ico
 IGNORED_ERROR_REGEX=''
 LANGUAGE_PREFERENCE_COOKIE_NAME='openedx-language-preference'
@@ -29,8 +28,6 @@ LEGACY_THEME_NAME=''
 MARKETING_SITE_BASE_URL='http://localhost:18000'
 ORDER_HISTORY_URL='http://localhost:1996/orders'
 PORT=2000
-PROCTORED_EXAM_FAQ_URL=''
-PROCTORED_EXAM_RULES_URL=''
 REFRESH_ACCESS_TOKEN_ENDPOINT='http://localhost:18000/login_refresh'
 SEARCH_CATALOG_URL='http://localhost:18000/courses'
 SEGMENT_KEY=''

.env.test

@@ -15,7 +15,6 @@ ECOMMERCE_BASE_URL='http://localhost:18130'
 ENABLE_JUMPNAV='true'
 ENABLE_NOTICES=''
 ENTERPRISE_LEARNER_PORTAL_HOSTNAME='localhost:8734'
-EXAMS_BASE_URL='http://localhost:18740'
 FAVICON_URL=https://edx-cdn.org/v3/default/favicon.ico
 IGNORED_ERROR_REGEX=''
 LANGUAGE_PREFERENCE_COOKIE_NAME='openedx-language-preference'
@@ -29,8 +28,6 @@ LEGACY_THEME_NAME=''
 MARKETING_SITE_BASE_URL='http://localhost:18000'
 ORDER_HISTORY_URL='http://localhost:1996/orders'
 PORT=2000
-PROCTORED_EXAM_FAQ_URL=''
-PROCTORED_EXAM_RULES_URL=''
 REFRESH_ACCESS_TOKEN_ENDPOINT='http://localhost:18000/login_refresh'
 SEARCH_CATALOG_URL='http://localhost:18000/courses'
 SEGMENT_KEY=''

.eslintrc.js

@@ -1,17 +1,11 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
 const { createConfig } = require('@edx/frontend-build');
 
-const config = createConfig('eslint', {
-  rules: {
-    // TODO: all these rules should be renabled/addressed. temporarily turned off to unblock a release.
-    'react-hooks/rules-of-hooks': 'off',
-    'react-hooks/exhaustive-deps': 'off',
-    'import/no-extraneous-dependencies': 'off',
-    'no-restricted-exports': 'off',
-    'react/jsx-no-useless-fragment': 'off',
-    'react/no-unknown-property': 'off',
-    'func-names': 'off',
-  },
+module.exports = createConfig('eslint', {
+  overrides: [{
+    files: ["**/__tests__/**/*.[jt]s?(x)", "**/?(*.)+(spec|test).[jt]s?(x)", "setupTest.js"],
+    rules: {
+      'import/named': 'off',
+      'import/no-extraneous-dependencies': 'off',
+    },
+  }],
 });
-
-module.exports = config;

.github/workflows/add-depr-ticket-to-depr-board.yml

@@ -16,4 +16,4 @@ jobs:
     secrets:
       GITHUB_APP_ID: ${{ secrets.GRAPHQL_AUTH_APP_ID }}
       GITHUB_APP_PRIVATE_KEY: ${{ secrets.GRAPHQL_AUTH_APP_PEM }}
-      SLACK_BOT_TOKEN: ${{ secrets.SLACK_ISSUE_BOT_TOKEN }}
+      SLACK_BOT_TOKEN: ${{ secrets.SLACK_ISSUE_BOT_TOKEN }}

.github/workflows/add-remove-label-on-comment.yml

@@ -1,20 +0,0 @@
-# This workflow runs when a comment is made on the ticket
-# If the comment starts with "label: " it tries to apply
-# the label indicated in rest of comment.
-# If the comment starts with "remove label: ", it tries
-# to remove the indicated label.
-# Note: Labels are allowed to have spaces and this script does
-# not parse spaces (as often a space is legitimate), so the command
-# "label: really long lots of words label" will apply the
-# label "really long lots of words label"
-
-name: Allows for the adding and removing of labels via comment
-
-on:
-  issue_comment:
-    types: [created]
-
-jobs:
-  add_remove_labels:
-    uses: openedx/.github/.github/workflows/add-remove-label-on-comment.yml@master
-

.github/workflows/self-assign-issue.yml

@@ -1,12 +0,0 @@
-# This workflow runs when a comment is made on the ticket
-# If the comment starts with "assign me" it assigns the author to the
-# ticket (case insensitive)
-
-name: Assign comment author to ticket if they say "assign me"
-on:
-  issue_comment:
-    types: [created]
-
-jobs:
-  self_assign_by_comment:
-    uses: openedx/.github/.github/workflows/self-assign-issue.yml@master

.github/workflows/update-browserslist-db.yml

@@ -1,12 +0,0 @@
-name: Update Browserslist DB
-on:
-  schedule:
-    - cron:  '0 0 * * 1'
-  workflow_dispatch:
-
-jobs:
-  update-browserslist:
-    uses: openedx/.github/.github/workflows/update-browserslist-db.yml@master
-
-    secrets:
-        requirements_bot_github_token: ${{ secrets.requirements_bot_github_token }}

Makefile

@@ -1,5 +1,5 @@
 export TRANSIFEX_RESOURCE=frontend-app-learning
-transifex_langs = "ar,fr,es_419,zh_CN,pt,it,de,uk,ru,hi,fr_CA"
+transifex_langs = "ar,fr,es_419,zh_CN"
 
 transifex_utils = ./node_modules/.bin/transifex-utils.js
 i18n = ./src/i18n

jest.config.js

@@ -9,6 +9,4 @@ module.exports = createConfig('jest', {
     'src/i18n',
     'src/.*\\.exp\\..*',
   ],
-  testTimeout: 30000,
-  testEnvironment: 'jsdom'
 });

package.json

@@ -29,50 +29,48 @@
     "url": "https://github.com/openedx/frontend-app-learning/issues"
   },
   "dependencies": {
-    "@edx/brand": "npm:@edx/brand-openedx@1.2.0",
-    "@edx/frontend-component-footer": "11.6.3",
-    "@edx/frontend-component-header": "3.6.4",
-    "@edx/frontend-lib-special-exams": "2.10.0",
-    "@edx/frontend-platform": "4.1.0",
-    "@edx/paragon": "20.28.4",
+    "@edx/brand": "npm:@edx/brand-openedx@1.1.0",
+    "@edx/frontend-component-footer": "^12.0.0",
+    "@edx/frontend-component-header": "^4.0.0",
+    "@edx/frontend-lib-special-exams": "^2.16.1",
+    "@edx/frontend-platform": "^4.2.0",
+    "@edx/paragon": "^20.28.4",
     "@fortawesome/fontawesome-svg-core": "1.3.0",
     "@fortawesome/free-brands-svg-icons": "5.15.4",
     "@fortawesome/free-regular-svg-icons": "5.15.4",
     "@fortawesome/free-solid-svg-icons": "5.15.4",
     "@fortawesome/react-fontawesome": "0.1.18",
-    "@popperjs/core": "2.11.6",
+    "@popperjs/core": "2.11.5",
     "@reduxjs/toolkit": "1.8.1",
-    "classnames": "2.3.2",
+    "classnames": "2.3.1",
     "core-js": "3.22.2",
-    "history": "5.3.0",
-    "html-react-parser": "^3.0.15",
+    "history": "^5.3.0",
     "js-cookie": "3.0.1",
     "lodash.camelcase": "4.3.0",
     "prop-types": "15.8.1",
-    "query-string": "7.1.3",
+    "query-string": "^7.1.1",
     "react": "16.14.0",
     "react-dom": "16.14.0",
     "react-helmet": "6.1.0",
-    "react-redux": "7.2.9",
+    "react-redux": "7.2.8",
     "react-router": "5.2.1",
     "react-router-dom": "5.3.0",
-    "react-share": "4.4.1",
+    "react-share": "4.4.0",
     "redux": "4.1.2",
-    "regenerator-runtime": "0.13.11",
-    "reselect": "4.1.7",
+    "regenerator-runtime": "0.13.9",
+    "reselect": "4.1.5",
     "truncate-html": "1.0.4",
-    "util": "0.12.5"
+    "util": "0.12.4"
   },
   "devDependencies": {
-    "@edx/browserslist-config": "1.1.1",
-    "@edx/frontend-build": "^12.4.15",
-    "@edx/reactifex": "2.1.1",
+    "@edx/browserslist-config": "1.0.2",
+    "@edx/frontend-build": "9.1.4",
+    "@edx/reactifex": "2.0.1",
     "@pact-foundation/pact": "9.17.3",
-    "@testing-library/jest-dom": "5.16.5",
+    "@testing-library/jest-dom": "5.16.4",
     "@testing-library/react": "12.1.5",
     "@testing-library/user-event": "13.5.0",
     "axios-mock-adapter": "1.20.0",
-    "copy-webpack-plugin": "^11.0.0",
     "es-check": "6.2.1",
     "husky": "7.0.4",
     "jest": "27.5.1",

src/alerts/access-expiration-alert/AccessExpirationAlert.jsx

@@ -1,3 +1,4 @@
+import React, { useState } from 'react';
 import PropTypes from 'prop-types';
 import { sendTrackEvent } from '@edx/frontend-platform/analytics';
 import {
@@ -7,8 +8,18 @@ import { Alert, Hyperlink } from '@edx/paragon';
 import { Info } from '@edx/paragon/icons';
 
 import messages from './messages';
+import AccessExpirationAlertMMP2P from './AccessExpirationAlertMMP2P';
+
+function AccessExpirationAlert({ intl, payload }) {
+  /** [MM-P2P] Experiment */
+  const [showMMP2P, setShowMMP2P] = useState(!!window.experiment__home_alert_bShowMMP2P);
+  if (window.experiment__home_alert_showMMP2P === undefined) {
+    window.experiment__home_alert_showMMP2P = (val) => {
+      window.experiment__home_alert_bShowMMP2P = !!val;
+      setShowMMP2P(!!val);
+    };
+  }
 
-const AccessExpirationAlert = ({ intl, payload }) => {
   const {
     accessExpiration,
     courseId,
@@ -28,6 +39,13 @@ const AccessExpirationAlert = ({ intl, payload }) => {
     upgradeUrl,
   } = accessExpiration;
 
+  /** [MM-P2P] Experiment */
+  if (showMMP2P) {
+    return (
+      <AccessExpirationAlertMMP2P payload={payload} />
+    );
+  }
+
   const logClick = () => {
     sendTrackEvent('edx.bi.ecommerce.upsell_links_clicked', {
       org_key: org,
@@ -116,7 +134,7 @@ const AccessExpirationAlert = ({ intl, payload }) => {
       {deadlineMessage}
     </Alert>
   );
-};
+}
 
 AccessExpirationAlert.propTypes = {
   intl: intlShape.isRequired,

src/alerts/access-expiration-alert/AccessExpirationAlertMMP2P.jsx

@@ -0,0 +1,80 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { FormattedDate, injectIntl } from '@edx/frontend-platform/i18n';
+import { Alert, Hyperlink } from '@edx/paragon';
+import { Info } from '@edx/paragon/icons';
+
+import messages from './messages';
+
+function AccessExpirationAlertMMP2P({ payload }) {
+  const {
+    accessExpiration,
+    userTimezone,
+  } = payload;
+  const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
+
+  if (!accessExpiration) {
+    return null;
+  }
+
+  const {
+    expirationDate,
+    upgradeDeadline,
+    upgradeUrl,
+  } = accessExpiration;
+
+  let deadlineMessage = null;
+  const formatDate = (val, key) => (
+    <FormattedDate
+      key={`accessExpiration.${key}`}
+      day="numeric"
+      month="short"
+      year="numeric"
+      value={val}
+      {...timezoneFormatArgs}
+    />
+  );
+
+  if (upgradeDeadline && upgradeUrl) {
+    deadlineMessage = (
+      <>
+        Upgrade by {formatDate(upgradeDeadline, 'upgradeDesc')} to unlock unlimited access to all course activities, including graded assignments.
+        &nbsp;
+        <Hyperlink
+          className="font-weight-bold"
+          style={{ textDecoration: 'underline' }}
+          destination={upgradeUrl}
+        >
+          {messages.upgradeNow.defaultMessage}
+        </Hyperlink>
+      </>
+    );
+  }
+
+  return (
+    <Alert variant="info" icon={Info}>
+      <span className="font-weight-bold">
+        Unlock full course content by {formatDate(upgradeDeadline, 'upgradeTitle')}
+      </span>
+      <br />
+      {deadlineMessage}
+      <br />
+      You lose all access to the first two weeks of scheduled content
+      on {formatDate(expirationDate, 'expirationBody')}.
+    </Alert>
+  );
+}
+
+AccessExpirationAlertMMP2P.propTypes = {
+  payload: PropTypes.shape({
+    accessExpiration: PropTypes.shape({
+      expirationDate: PropTypes.string.isRequired,
+      masqueradingExpiredCourse: PropTypes.bool.isRequired,
+      upgradeDeadline: PropTypes.string,
+      upgradeUrl: PropTypes.string,
+    }).isRequired,
+    userTimezone: PropTypes.string.isRequired,
+  }).isRequired,
+};
+
+export default injectIntl(AccessExpirationAlertMMP2P);

src/alerts/access-expiration-alert/AccessExpirationMasqueradeBanner.jsx

@@ -3,7 +3,7 @@ import PropTypes from 'prop-types';
 import { FormattedMessage, FormattedDate } from '@edx/frontend-platform/i18n';
 import { PageBanner } from '@edx/paragon';
 
-const AccessExpirationMasqueradeBanner = ({ payload }) => {
+function AccessExpirationMasqueradeBanner({ payload }) {
   const {
     expirationDate,
     userTimezone,
@@ -27,7 +27,7 @@ const AccessExpirationMasqueradeBanner = ({ payload }) => {
       />
     </PageBanner>
   );
-};
+}
 
 AccessExpirationMasqueradeBanner.propTypes = {
   payload: PropTypes.shape({

src/alerts/access-expiration-alert/hooks.js

@@ -7,17 +7,17 @@ const AccessExpirationMasqueradeBanner = React.lazy(() => import('./AccessExpira
 
 function useAccessExpirationAlert(accessExpiration, courseId, org, userTimezone, topic, analyticsPageName) {
   const isVisible = accessExpiration && !accessExpiration.masqueradingExpiredCourse; // If it exists, show it.
-  const payload = useMemo(() => ({
+  const payload = {
     accessExpiration,
     courseId,
     org,
     userTimezone,
     analyticsPageName,
-  }), [accessExpiration, analyticsPageName, courseId, org, userTimezone]);
+  };
 
   useAlert(isVisible, {
     code: 'clientAccessExpirationAlert',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic,
   });
 
@@ -34,14 +34,14 @@ export function useAccessExpirationMasqueradeBanner(courseId, tab) {
 
   const isVisible = accessExpiration && accessExpiration.masqueradingExpiredCourse;
   const expirationDate = accessExpiration && accessExpiration.expirationDate;
-  const payload = useMemo(() => ({
+  const payload = {
     expirationDate,
     userTimezone,
-  }), [expirationDate, userTimezone]);
+  };
 
   useAlert(isVisible, {
     code: 'clientAccessExpirationMasqueradeBanner',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'instructor-toolbar-alerts',
   });
 

src/alerts/active-enteprise-alert/ActiveEnterpriseAlert.jsx

@@ -7,7 +7,7 @@ import { WarningFilled } from '@edx/paragon/icons';
 import { getConfig } from '@edx/frontend-platform';
 import genericMessages from './messages';
 
-const ActiveEnterpriseAlert = ({ intl, payload }) => {
+function ActiveEnterpriseAlert({ intl, payload }) {
   const { text, courseId } = payload;
   const changeActiveEnterprise = (
     <Hyperlink
@@ -35,7 +35,7 @@ const ActiveEnterpriseAlert = ({ intl, payload }) => {
       />
     </Alert>
   );
-};
+}
 
 ActiveEnterpriseAlert.propTypes = {
   intl: intlShape.isRequired,

src/alerts/active-enteprise-alert/ActiveEnterpriseAlert.test.jsx

@@ -20,6 +20,8 @@ describe('ActiveEnterpriseAlert', () => {
     render(<ActiveEnterpriseAlert {...mockData} />);
     expect(screen.getByRole('alert')).toBeInTheDocument();
     expect(screen.getByText('test message', { exact: false })).toBeInTheDocument();
-    expect(screen.getByRole('link', { name: 'change enterprise now' })).toHaveAttribute('href', `${getConfig().LMS_BASE_URL}/enterprise/select/active/?success_url=http%3A%2F%2Flocalhost%2Fcourse%2Ftest-course-id%2Fhome`);
+    expect(screen.getByRole('link', { name: 'change enterprise now' })).toHaveAttribute(
+      'href', `${getConfig().LMS_BASE_URL}/enterprise/select/active/?success_url=http%3A%2F%2Flocalhost%2Fcourse%2Ftest-course-id%2Fhome`,
+    );
   });
 });

src/alerts/active-enteprise-alert/hooks.js

@@ -12,16 +12,16 @@ export default function useActiveEnterpriseAlert(courseId) {
    */
   const isVisible = courseAccess && !courseAccess.hasAccess && courseAccess.errorCode === 'incorrect_active_enterprise';
 
-  const payload = useMemo(() => ({
+  const payload = {
     text: courseAccess && courseAccess.userMessage,
     courseId,
-  }), [courseAccess, courseId]);
+  };
   useAlert(isVisible, {
     code: 'clientActiveEnterpriseAlert',
     topic: 'outline',
     dismissible: false,
     type: ALERT_TYPES.ERROR,
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
   });
 
   return { clientActiveEnterpriseAlert: ActiveEnterpriseAlert };

src/alerts/course-start-alert/CourseStartAlert.jsx

@@ -15,7 +15,7 @@ const DAY_SEC = 24 * 60 * 60; // in seconds
 const DAY_MS = DAY_SEC * 1000; // in ms
 const YEAR_SEC = 365 * DAY_SEC; // in seconds
 
-const CourseStartAlert = ({ payload }) => {
+function CourseStartAlert({ payload }) {
   const {
     courseId,
   } = payload;
@@ -38,6 +38,7 @@ const CourseStartAlert = ({ payload }) => {
       {...timezoneFormatArgs}
     />
   );
+
   if (delta < DAY_MS) {
     return (
       <Alert variant="info" icon={Info}>
@@ -94,7 +95,7 @@ const CourseStartAlert = ({ payload }) => {
       />
     </Alert>
   );
-};
+}
 
 CourseStartAlert.propTypes = {
   payload: PropTypes.shape({

src/alerts/course-start-alert/CourseStartMasqueradeBanner.jsx

@@ -5,7 +5,7 @@ import { PageBanner } from '@edx/paragon';
 
 import { useModel } from '../../generic/model-store';
 
-const CourseStartMasqueradeBanner = ({ payload }) => {
+function CourseStartMasqueradeBanner({ payload }) {
   const {
     courseId,
   } = payload;
@@ -33,7 +33,7 @@ const CourseStartMasqueradeBanner = ({ payload }) => {
       />
     </PageBanner>
   );
-};
+}
 
 CourseStartMasqueradeBanner.propTypes = {
   payload: PropTypes.shape({

src/alerts/course-start-alert/hooks.js

@@ -5,7 +5,7 @@ import { useModel } from '../../generic/model-store';
 const CourseStartAlert = React.lazy(() => import('./CourseStartAlert'));
 const CourseStartMasqueradeBanner = React.lazy(() => import('./CourseStartMasqueradeBanner'));
 
-function IsStartDateInFuture(courseId) {
+function isStartDateInFuture(courseId) {
   const {
     start,
   } = useModel('courseHomeMeta', courseId);
@@ -20,15 +20,15 @@ function useCourseStartAlert(courseId) {
     isEnrolled,
   } = useModel('courseHomeMeta', courseId);
 
-  const isVisible = isEnrolled && IsStartDateInFuture(courseId);
+  const isVisible = isEnrolled && isStartDateInFuture(courseId);
 
-  const payload = useMemo(() => ({
+  const payload = {
     courseId,
-  }), [courseId]);
+  };
 
   useAlert(isVisible, {
     code: 'clientCourseStartAlert',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'outline-course-alerts',
   });
 
@@ -42,15 +42,15 @@ export function useCourseStartMasqueradeBanner(courseId, tab) {
     isMasquerading,
   } = useModel('courseHomeMeta', courseId);
 
-  const isVisible = isMasquerading && tab === 'progress' && IsStartDateInFuture(courseId);
+  const isVisible = isMasquerading && tab === 'progress' && isStartDateInFuture(courseId);
 
-  const payload = useMemo(() => ({
+  const payload = {
     courseId,
-  }), [courseId]);
+  };
 
   useAlert(isVisible, {
     code: 'clientCourseStartMasqueradeBanner',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'instructor-toolbar-alerts',
   });
 

src/alerts/enrollment-alert/EnrollmentAlert.jsx

@@ -11,7 +11,7 @@ import { useModel } from '../../generic/model-store';
 import messages from './messages';
 import useEnrollClickHandler from './clickHook';
 
-const EnrollmentAlert = ({ intl, payload }) => {
+function EnrollmentAlert({ intl, payload }) {
   const {
     canEnroll,
     courseId,
@@ -55,7 +55,7 @@ const EnrollmentAlert = ({ intl, payload }) => {
       </div>
     </Alert>
   );
-};
+}
 
 EnrollmentAlert.propTypes = {
   intl: intlShape.isRequired,

src/alerts/enrollment-alert/clickHook.js

@@ -27,7 +27,7 @@ function useEnrollClickHandler(courseId, orgId, successText) {
       });
       global.location.reload();
     });
-  }, [addFlash, courseId, orgId, successText]);
+  }, [courseId]);
 
   return { enrollClickHandler, loading };
 }

src/alerts/enrollment-alert/hooks.js

@@ -22,16 +22,16 @@ export function useEnrollmentAlert(courseId) {
    *    3. the course is private.
    */
   const isVisible = !enrolledUser && authenticatedUser !== null && privateOutline;
-  const payload = useMemo(() => ({
+  const payload = {
     canEnroll: outline && outline.enrollAlert ? outline.enrollAlert.canEnroll : false,
     courseId,
     extraText: outline && outline.enrollAlert ? outline.enrollAlert.extraText : '',
     isStaff: course && course.isStaff,
-  }), [course, courseId, outline]);
+  };
 
   useAlert(isVisible, {
     code: 'clientEnrollmentAlert',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'outline',
   });
 

src/alerts/logistration-alert/AccountActivationAlert.jsx

@@ -13,9 +13,9 @@ import { FormattedMessage, injectIntl, intlShape } from '@edx/frontend-platform/
 import { sendActivationEmail } from '../../courseware/data';
 import messages from './messages';
 
-const AccountActivationAlert = ({
+function AccountActivationAlert({
   intl,
-}) => {
+}) {
   const [showModal, setShowModal] = useState(false);
   const [showSpinner, setShowSpinner] = useState(false);
   const [showCheck, setShowCheck] = useState(false);
@@ -123,7 +123,7 @@ const AccountActivationAlert = ({
       {children()}
     </AlertModal>
   );
-};
+}
 
 AccountActivationAlert.propTypes = {
   intl: intlShape.isRequired,

src/alerts/logistration-alert/LogistrationAlert.jsx

@@ -7,7 +7,7 @@ import { WarningFilled } from '@edx/paragon/icons';
 
 import genericMessages from '../../generic/messages';
 
-const LogistrationAlert = ({ intl }) => {
+function LogistrationAlert({ intl }) {
   const signIn = (
     <Hyperlink
       style={{ textDecoration: 'underline' }}
@@ -41,7 +41,7 @@ const LogistrationAlert = ({ intl }) => {
       />
     </Alert>
   );
-};
+}
 
 LogistrationAlert.propTypes = {
   intl: intlShape.isRequired,

src/alerts/sequence-alerts/hooks.js

@@ -35,8 +35,7 @@ function useSequenceEntranceExamAlert(courseId, sequenceId, intl) {
 
   if (entranceExamPassed) {
     entranceExamText = intl.formatMessage(
-      messages.entranceExamTextPassed,
-      { entranceExamCurrentScore: entranceExamCurrentScore * 100 },
+      messages.entranceExamTextPassed, { entranceExamCurrentScore: entranceExamCurrentScore * 100 },
     );
   } else {
     entranceExamText = intl.formatMessage(messages.entranceExamTextNotPassing, {

src/course-home/data/__factories__/courseHomeMetadata.factory.js

@@ -34,89 +34,91 @@ Factory.define('courseHomeMetadata')
       currency_symbol: '$',
     },
   })
-  .attr('tabs', ['id', 'host'], (id, host) => [
-    Factory.build(
-      'tab',
-      {
-        title: 'Course',
-        priority: 0,
-        slug: 'courseware',
-        type: 'courseware',
-      },
-      {
-        courseId: id,
-        host,
-        path: 'course/',
-      },
-    ),
-    Factory.build(
-      'tab',
-      {
-        title: 'Discussion',
-        priority: 1,
-        slug: 'discussion',
-        type: 'discussion',
-      },
-      {
-        courseId: id,
-        host,
-        path: 'discussion/forum/',
-      },
-    ),
-    Factory.build(
-      'tab',
-      {
-        title: 'Wiki',
-        priority: 2,
-        slug: 'wiki',
-        type: 'wiki',
-      },
-      {
-        courseId: id,
-        host,
-        path: 'course_wiki',
-      },
-    ),
-    Factory.build(
-      'tab',
-      {
-        title: 'Progress',
-        priority: 3,
-        slug: 'progress',
-        type: 'progress',
-      },
-      {
-        courseId: id,
-        host,
-        path: 'progress',
-      },
-    ),
-    Factory.build(
-      'tab',
-      {
-        title: 'Instructor',
-        priority: 4,
-        slug: 'instructor',
-        type: 'instructor',
-      },
-      {
-        courseId: id,
-        host,
-        path: 'instructor',
-      },
-    ),
-    Factory.build(
-      'tab',
-      {
-        title: 'Dates',
-        priority: 5,
-        slug: 'dates',
-        type: 'dates',
-      },
-      {
-        courseId: id,
-        host,
-        path: 'dates',
-      },
-    ),
-  ]);
+  .attr(
+    'tabs', ['id', 'host'], (id, host) => [
+      Factory.build(
+        'tab',
+        {
+          title: 'Course',
+          priority: 0,
+          slug: 'courseware',
+          type: 'courseware',
+        },
+        {
+          courseId: id,
+          host,
+          path: 'course/',
+        },
+      ),
+      Factory.build(
+        'tab',
+        {
+          title: 'Discussion',
+          priority: 1,
+          slug: 'discussion',
+          type: 'discussion',
+        },
+        {
+          courseId: id,
+          host,
+          path: 'discussion/forum/',
+        },
+      ),
+      Factory.build(
+        'tab',
+        {
+          title: 'Wiki',
+          priority: 2,
+          slug: 'wiki',
+          type: 'wiki',
+        },
+        {
+          courseId: id,
+          host,
+          path: 'course_wiki',
+        },
+      ),
+      Factory.build(
+        'tab',
+        {
+          title: 'Progress',
+          priority: 3,
+          slug: 'progress',
+          type: 'progress',
+        },
+        {
+          courseId: id,
+          host,
+          path: 'progress',
+        },
+      ),
+      Factory.build(
+        'tab',
+        {
+          title: 'Instructor',
+          priority: 4,
+          slug: 'instructor',
+          type: 'instructor',
+        },
+        {
+          courseId: id,
+          host,
+          path: 'instructor',
+        },
+      ),
+      Factory.build(
+        'tab',
+        {
+          title: 'Dates',
+          priority: 5,
+          slug: 'dates',
+          type: 'dates',
+        },
+        {
+          courseId: id,
+          host,
+          path: 'dates',
+        },
+      ),
+    ],
+  );

src/course-home/data/api.js

@@ -349,7 +349,7 @@ export async function getOutlineTabData(courseId) {
   const timeOffsetMillis = getTimeOffsetMillis(headers && headers.date, requestTime, responseTime);
   const userHasPassingGrade = data.user_has_passing_grade;
   const verifiedMode = camelCaseObject(data.verified_mode);
-  const welcomeMessageHtml = data.welcome_message_html || '';
+  const welcomeMessageHtml = data.welcome_message_html;
 
   return {
     accessExpiration,

src/course-home/dates-tab/DatesTab.jsx

@@ -9,12 +9,14 @@ import Timeline from './timeline/Timeline';
 import { fetchDatesTab } from '../data';
 import { useModel } from '../../generic/model-store';
 
+/** [MM-P2P] Experiment */
+import { initDatesMMP2P } from '../../experiments/mm-p2p';
 import SuggestedScheduleHeader from '../suggested-schedule-messaging/SuggestedScheduleHeader';
 import ShiftDatesAlert from '../suggested-schedule-messaging/ShiftDatesAlert';
 import UpgradeToCompleteAlert from '../suggested-schedule-messaging/UpgradeToCompleteAlert';
 import UpgradeToShiftDatesAlert from '../suggested-schedule-messaging/UpgradeToShiftDatesAlert';
 
-const DatesTab = ({ intl }) => {
+function DatesTab({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -28,6 +30,9 @@ const DatesTab = ({ intl }) => {
     courseDateBlocks,
   } = useModel('dates', courseId);
 
+  /** [MM-P2P] Experiment */
+  const mmp2p = initDatesMMP2P(courseId);
+
   const hasDeadlines = courseDateBlocks && courseDateBlocks.some(x => x.dateType === 'assignment-due-date');
 
   const logUpgradeLinkClick = () => {
@@ -46,7 +51,8 @@ const DatesTab = ({ intl }) => {
       <div role="heading" aria-level="1" className="h2 my-3">
         {intl.formatMessage(messages.title)}
       </div>
-      {isSelfPaced && hasDeadlines && (
+      { /** [MM-P2P] Experiment */ }
+      {isSelfPaced && hasDeadlines && !mmp2p.state.isEnabled && (
         <>
           <ShiftDatesAlert model="dates" fetch={fetchDatesTab} />
           <SuggestedScheduleHeader />
@@ -54,10 +60,10 @@ const DatesTab = ({ intl }) => {
           <UpgradeToShiftDatesAlert logUpgradeLinkClick={logUpgradeLinkClick} model="dates" />
         </>
       )}
-      <Timeline />
+      <Timeline mmp2p={mmp2p} />
     </>
   );
-};
+}
 
 DatesTab.propTypes = {
   intl: intlShape.isRequired,

src/course-home/dates-tab/timeline/Day.jsx

@@ -17,13 +17,15 @@ import { useModel } from '../../../generic/model-store';
 import { getBadgeListAndColor } from './badgelist';
 import { isLearnerAssignment } from '../utils';
 
-const Day = ({
+function Day({
   date,
   first,
   intl,
   items,
   last,
-}) => {
+  /** [MM-P2P] Example */
+  mmp2p,
+}) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -35,6 +37,11 @@ const Day = ({
 
   const { color, badges } = getBadgeListAndColor(date, intl, null, items);
 
+  /** [MM-P2P] Experiment */
+  const mmp2pOverride = (
+    mmp2p.state.isEnabled
+    && items.some((item) => item.dateType === 'verified-upgrade-deadline')
+  );
   return (
     <li className="dates-day pb-4" data-testid="dates-day">
       {/* Top Line */}
@@ -50,7 +57,8 @@ const Day = ({
       <div className="d-inline-block ml-3 pl-2">
         <div className="row w-100 m-0 mb-1 align-items-center text-primary-700" data-testid="dates-header">
           <FormattedDate
-            value={date}
+            /** [MM-P2P] Experiment */
+            value={mmp2pOverride ? mmp2p.state.upgradeDeadline : date}
             day="numeric"
             month="short"
             weekday="short"
@@ -60,7 +68,10 @@ const Day = ({
           {badges}
         </div>
         {items.map((item) => {
-          const { badges: itemBadges } = getBadgeListAndColor(date, intl, item, items);
+          /** [MM-P2P] Experiment (conditional) */
+          const { badges: itemBadges } = mmp2pOverride
+            ? getBadgeListAndColor(new Date(mmp2p.state.upgradeDeadline), intl, item, items)
+            : getBadgeListAndColor(date, intl, item, items);
 
           const showDueDateTime = item.dateType === 'assignment-due-date';
           const showLink = item.link && isLearnerAssignment(item);
@@ -96,14 +107,22 @@ const Day = ({
                   </OverlayTrigger>
                 )}
               </div>
-              {item.description && <div className="small mb-2">{item.description}</div>}
+              { /** [MM-P2P] Experiment (conditional) */ }
+              { mmp2pOverride
+                ? (
+                  <div className="small mb-2">
+                    You are still eligible to upgrade to a Verified Certificate!
+                    &nbsp; Unlock full course access and highlight the knowledge you&apos;ll gain.
+                  </div>
+                )
+                : (item.description && <div className="small mb-2">{item.description}</div>)}
             </div>
           );
         })}
       </div>
     </li>
   );
-};
+}
 
 Day.propTypes = {
   date: PropTypes.objectOf(Date).isRequired,
@@ -119,11 +138,25 @@ Day.propTypes = {
     title: PropTypes.string,
   })).isRequired,
   last: PropTypes.bool,
+  /** [MM-P2P] Experiment */
+  mmp2p: PropTypes.shape({
+    state: PropTypes.shape({
+      isEnabled: PropTypes.bool.isRequired,
+      upgradeDeadline: PropTypes.string,
+    }),
+  }),
 };
 
 Day.defaultProps = {
   first: false,
   last: false,
+  /** [MM-P2P] Experiment */
+  mmp2p: {
+    state: {
+      isEnabled: false,
+      upgradeDeadline: '',
+    },
+  },
 };
 
 export default injectIntl(Day);

src/course-home/dates-tab/timeline/Timeline.jsx

@@ -1,4 +1,6 @@
 import React from 'react';
+/** [MM-P2P] Experiment (import) */
+import PropTypes from 'prop-types';
 import { useSelector } from 'react-redux';
 
 import { useModel } from '../../../generic/model-store';
@@ -6,7 +8,8 @@ import { useModel } from '../../../generic/model-store';
 import Day from './Day';
 import { daycmp, isLearnerAssignment } from '../utils';
 
-const Timeline = () => {
+/** [MM-P2P] Experiment (argument) */
+export default function Timeline({ mmp2p }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -63,10 +66,17 @@ const Timeline = () => {
   return (
     <ul className="list-unstyled m-0 mt-4 pt-2">
       {groupedDates.map((groupedDate) => (
-        <Day key={groupedDate.date} {...groupedDate} />
+        <Day key={groupedDate.date} {...groupedDate} mmp2p={mmp2p} />
       ))}
     </ul>
   );
+}
+
+/** [MM-P2P] Experiment */
+Timeline.propTypes = {
+  mmp2p: PropTypes.shape({}),
 };
 
-export default Timeline;
+Timeline.defaultProps = {
+  mmp2p: {},
+};

src/course-home/discussion-tab/DiscussionTab.jsx

@@ -6,7 +6,7 @@ import { generatePath, useHistory } from 'react-router';
 import { useParams } from 'react-router-dom';
 import { useIFrameHeight, useIFramePluginEvents } from '../../generic/hooks';
 
-const DiscussionTab = () => {
+function DiscussionTab() {
   const { courseId } = useSelector(state => state.courseHome);
   const { path } = useParams();
   const [originalPath] = useState(path);
@@ -29,7 +29,7 @@ const DiscussionTab = () => {
       title="discussion"
     />
   );
-};
+}
 
 DiscussionTab.propTypes = {};
 

src/course-home/goal-unsubscribe/GoalUnsubscribe.jsx

@@ -10,7 +10,7 @@ import { unsubscribeFromCourseGoal } from '../data/api';
 import messages from './messages';
 import ResultPage from './ResultPage';
 
-const GoalUnsubscribe = ({ intl }) => {
+function GoalUnsubscribe({ intl }) {
   const { token } = useParams();
   const [error, setError] = useState(false);
   const [isLoading, setIsLoading] = useState(true);
@@ -33,7 +33,6 @@ const GoalUnsubscribe = ({ intl }) => {
     // as visiting this page is allowed to be done anonymously and without the context of the course.
     // The token can be used to connect a user and course, it will just require some post-processing
     sendTrackEvent('edx.ui.lms.goal.unsubscribe', { token });
-  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []); // deps=[] to only run once
 
   return (
@@ -49,7 +48,7 @@ const GoalUnsubscribe = ({ intl }) => {
       </main>
     </>
   );
-};
+}
 
 GoalUnsubscribe.propTypes = {
   intl: intlShape.isRequired,

src/course-home/goal-unsubscribe/ResultPage.jsx

@@ -6,7 +6,7 @@ import { Button, Hyperlink } from '@edx/paragon';
 import messages from './messages';
 import { ReactComponent as UnsubscribeIcon } from './unsubscribe.svg';
 
-const ResultPage = ({ courseTitle, error, intl }) => {
+function ResultPage({ courseTitle, error, intl }) {
   const errorDescription = (
     <FormattedMessage
       id="learning.goals.unsubscribe.errorDescription"
@@ -44,7 +44,7 @@ const ResultPage = ({ courseTitle, error, intl }) => {
       </Button>
     </>
   );
-};
+}
 
 ResultPage.defaultProps = {
   courseTitle: null,

src/course-home/live-tab/LiveTab.jsx

@@ -1,7 +1,7 @@
 import React, { useEffect } from 'react';
 import { useSelector } from 'react-redux';
 
-const LiveTab = () => {
+function LiveTab() {
   const { courseId } = useSelector(state => state.courseHome);
   const liveModel = useSelector(state => state.models.live);
   useEffect(() => {
@@ -17,6 +17,6 @@ const LiveTab = () => {
       dangerouslySetInnerHTML={{ __html: liveModel[courseId]?.iframe }}
     />
   );
-};
+}
 
 export default LiveTab;

src/course-home/outline-tab/DateSummary.jsx

@@ -9,10 +9,12 @@ import { useModel } from '../../generic/model-store';
 import { isLearnerAssignment } from '../dates-tab/utils';
 import './DateSummary.scss';
 
-const DateSummary = ({
+export default function DateSummary({
   dateBlock,
   userTimezone,
-}) => {
+  /** [MM-P2P] Experiment */
+  mmp2p,
+}) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -23,6 +25,9 @@ const DateSummary = ({
   const linkedTitle = dateBlock.link && isLearnerAssignment(dateBlock);
   const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
 
+  /** [MM-P2P] Experiment */
+  const showMMP2P = mmp2p.state.isEnabled && (dateBlock.dateType === 'verified-upgrade-deadline');
+
   const logVerifiedUpgradeClick = () => {
     sendTrackEvent('edx.bi.ecommerce.upsell_links_clicked', {
       org_key: org,
@@ -40,7 +45,8 @@ const DateSummary = ({
         <FontAwesomeIcon icon={faCalendarAlt} className="ml-3 mt-1 mr-1" fixedWidth />
         <div className="ml-1 font-weight-bold">
           <FormattedDate
-            value={dateBlock.date}
+            /** [MM-P2P] Experiment */
+            value={showMMP2P ? mmp2p.state.upgradeDeadline : dateBlock.date}
             day="numeric"
             month="short"
             weekday="short"
@@ -49,33 +55,48 @@ const DateSummary = ({
           />
         </div>
       </div>
-      <div className="row ml-4 pr-2">
-        <div className="date-summary-text">
-          {linkedTitle && (
+      {/** [MM-P2P] Experiment (conditional) */}
+      { showMMP2P ? (
+        <div className="row ml-4 pr-2">
+          <div className="date-summary-text">
             <div className="font-weight-bold mt-2">
-              <a href={dateBlock.link}>{dateBlock.title}</a>
+              Last chance to upgrade
             </div>
+          </div>
+          <div className="date-summary-text mt-1">
+            You are still eligible to upgrade to a Verified Certificate!
+            &nbsp; Unlock full course access and highlight the knowledge you&apos;ll gain.
+          </div>
+        </div>
+      ) : (
+        <div className="row ml-4 pr-2">
+          <div className="date-summary-text">
+            {linkedTitle && (
+              <div className="font-weight-bold mt-2">
+                <a href={dateBlock.link}>{dateBlock.title}</a>
+              </div>
+            )}
+            {!linkedTitle && (
+              <div className="font-weight-bold mt-2">{dateBlock.title}</div>
+            )}
+          </div>
+          {dateBlock.description && (
+            <div className="date-summary-text mt-1">{dateBlock.description}</div>
           )}
-          {!linkedTitle && (
-            <div className="font-weight-bold mt-2">{dateBlock.title}</div>
+          {!linkedTitle && dateBlock.link && (
+            <a
+              href={dateBlock.link}
+              onClick={dateBlock.dateType === 'verified-upgrade-deadline' ? logVerifiedUpgradeClick : () => {}}
+              className="description-link"
+            >
+              {dateBlock.linkText}
+            </a>
           )}
         </div>
-        {dateBlock.description && (
-          <div className="date-summary-text mt-1">{dateBlock.description}</div>
-        )}
-        {!linkedTitle && dateBlock.link && (
-          <a
-            href={dateBlock.link}
-            onClick={dateBlock.dateType === 'verified-upgrade-deadline' ? logVerifiedUpgradeClick : () => {}}
-            className="description-link"
-          >
-            {dateBlock.linkText}
-          </a>
-        )}
-      </div>
+      )}
     </li>
   );
-};
+}
 
 DateSummary.propTypes = {
   dateBlock: PropTypes.shape({
@@ -88,10 +109,22 @@ DateSummary.propTypes = {
     learnerHasAccess: PropTypes.bool,
   }).isRequired,
   userTimezone: PropTypes.string,
+  /** [MM-P2P] Experiment */
+  mmp2p: PropTypes.shape({
+    state: PropTypes.shape({
+      isEnabled: PropTypes.bool.isRequired,
+      upgradeDeadline: PropTypes.string,
+    }),
+  }),
 };
 
 DateSummary.defaultProps = {
   userTimezone: null,
+  /** [MM-P2P] Experiment */
+  mmp2p: {
+    state: {
+      isEnabled: false,
+      upgradeDeadline: '',
+    },
+  },
 };
-
-export default DateSummary;

src/course-home/outline-tab/LmsHtmlFragment.jsx

@@ -3,18 +3,18 @@ import PropTypes from 'prop-types';
 
 import { getConfig } from '@edx/frontend-platform';
 
-const LmsHtmlFragment = ({
+export default function LmsHtmlFragment({
   className,
   html,
   title,
   ...rest
-}) => {
+}) {
   const wholePage = `
     <html>
       <head>
         <base href="${getConfig().LMS_BASE_URL}" target="_parent">
         <link rel="stylesheet" href="/static/${getConfig().LEGACY_THEME_NAME ? `${getConfig().LEGACY_THEME_NAME}/` : ''}css/bootstrap/lms-main.css">
-        <link rel="stylesheet" type="text/css" href="${getConfig().BASE_URL}/static/LmsHtmlFragment.css">
+        <link rel="stylesheet" type="text/css" href="${getConfig().BASE_URL}/src/course-home/outline-tab/LmsHtmlFragment.css">
       </head>
       <body class="${className}">${html}</body>
       <script>
@@ -55,7 +55,7 @@ const LmsHtmlFragment = ({
       {...rest}
     />
   );
-};
+}
 
 LmsHtmlFragment.defaultProps = {
   className: '',
@@ -66,5 +66,3 @@ LmsHtmlFragment.propTypes = {
   html: PropTypes.string.isRequired,
   title: PropTypes.string.isRequired,
 };
-
-export default LmsHtmlFragment;

src/course-home/outline-tab/OutlineTab.jsx

@@ -29,7 +29,10 @@ import WelcomeMessage from './widgets/WelcomeMessage';
 import ProctoringInfoPanel from './widgets/ProctoringInfoPanel';
 import AccountActivationAlert from '../../alerts/logistration-alert/AccountActivationAlert';
 
-const OutlineTab = ({ intl }) => {
+/** [MM-P2P] Experiment */
+import { initHomeMMP2P, MMP2PFlyover } from '../../experiments/mm-p2p';
+
+function OutlineTab({ intl }) {
   const {
     courseId,
     proctoringPanelStatus,
@@ -101,6 +104,9 @@ const OutlineTab = ({ intl }) => {
     return userRoleNames.includes('enterprise_learner');
   };
 
+  /** [[MM-P2P] Experiment */
+  const MMP2P = initHomeMMP2P(courseId);
+
   /** show post enrolment survey to only B2C learners */
   const learnerType = isEnterpriseUser() ? 'enterprise_learner' : 'b2c_learner';
 
@@ -110,7 +116,7 @@ const OutlineTab = ({ intl }) => {
     const currentParams = new URLSearchParams(location.search);
     const startCourse = currentParams.get('start_course');
     if (startCourse === '1') {
-      sendTrackEvent('enrollment.email.clicked.startcourse', {});
+      sendTrackEvent('welcome.email.clicked.startcourse', {});
 
       // Deleting the course_start query param as it only needs to be set once
       // whenever passed in query params.
@@ -128,6 +134,7 @@ const OutlineTab = ({ intl }) => {
           <div role="heading" aria-level="1" className="h2">{title}</div>
         </div>
       </div>
+      {/** [MM-P2P] Experiment (className for optimizely trigger) */}
       <div className="row course-outline-tab">
         <AccountActivationAlert />
         <div className="col-12">
@@ -139,17 +146,21 @@ const OutlineTab = ({ intl }) => {
           />
         </div>
         <div className="col col-12 col-md-8">
-          <AlertList
-            topic="outline-course-alerts"
-            className="mb-3"
-            customAlerts={{
-              ...certificateAvailableAlert,
-              ...courseEndAlert,
-              ...courseStartAlert,
-              ...scheduledContentAlert,
-            }}
-          />
-          {isSelfPaced && hasDeadlines && (
+          { /** [MM-P2P] Experiment (the conditional) */ }
+          { !MMP2P.state.isEnabled
+            && (
+            <AlertList
+              topic="outline-course-alerts"
+              className="mb-3"
+              customAlerts={{
+                ...certificateAvailableAlert,
+                ...courseEndAlert,
+                ...courseStartAlert,
+                ...scheduledContentAlert,
+              }}
+            />
+            )}
+          {isSelfPaced && hasDeadlines && !MMP2P.state.isEnabled && (
             <>
               <ShiftDatesAlert model="outline" fetch={fetchOutlineTab} />
               <UpgradeToShiftDatesAlert model="outline" logUpgradeLinkClick={logUpgradeToShiftDatesLinkClick} />
@@ -192,27 +203,35 @@ const OutlineTab = ({ intl }) => {
               />
             )}
             <CourseTools />
-            <UpgradeNotification
-              offer={offer}
-              verifiedMode={verifiedMode}
-              accessExpiration={accessExpiration}
-              contentTypeGatingEnabled={datesBannerInfo.contentTypeGatingEnabled}
-              marketingUrl={marketingUrl}
-              upsellPageName="course_home"
-              userTimezone={userTimezone}
-              shouldDisplayBorder
-              timeOffsetMillis={timeOffsetMillis}
-              courseId={courseId}
-              org={org}
+            { /** [MM-P2P] Experiment (conditional) */ }
+            { MMP2P.state.isEnabled
+              ? <MMP2PFlyover isStatic options={MMP2P} />
+              : (
+                <UpgradeNotification
+                  offer={offer}
+                  verifiedMode={verifiedMode}
+                  accessExpiration={accessExpiration}
+                  contentTypeGatingEnabled={datesBannerInfo.contentTypeGatingEnabled}
+                  marketingUrl={marketingUrl}
+                  upsellPageName="course_home"
+                  userTimezone={userTimezone}
+                  shouldDisplayBorder
+                  timeOffsetMillis={timeOffsetMillis}
+                  courseId={courseId}
+                  org={org}
+                />
+              )}
+            <CourseDates
+              /** [MM-P2P] Experiment */
+              mmp2p={MMP2P}
             />
-            <CourseDates />
             <CourseHandouts />
           </div>
         )}
       </div>
     </>
   );
-};
+}
 
 OutlineTab.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/OutlineTab.test.jsx

@@ -355,13 +355,13 @@ describe('Outline Tab', () => {
 
       await fetchAndRender('http://localhost/?weekly_goal=3');
       expect(spy).toHaveBeenCalledTimes(1);
-      expect(sendTrackEvent).toHaveBeenCalledWith('enrollment.email.clicked.setgoal', {});
+      expect(sendTrackEvent).toHaveBeenCalledWith('welcome.email.clicked.setgoal', {});
     });
 
     it('emit start course event via query param', async () => {
       sendTrackEvent.mockClear();
       await fetchAndRender('http://localhost/?start_course=1');
-      expect(sendTrackEvent).toHaveBeenCalledWith('enrollment.email.clicked.startcourse', {});
+      expect(sendTrackEvent).toHaveBeenCalledWith('welcome.email.clicked.startcourse', {});
     });
 
     describe('weekly learning goal is not set', () => {
@@ -383,25 +383,25 @@ describe('Outline Tab', () => {
         expect(screen.getByLabelText(messages.setGoalReminder.defaultMessage)).toBeDisabled();
       });
 
-      it.each([
-        { level: 'Casual', days: 1 },
-        { level: 'Regular', days: 3 },
-        { level: 'Intense', days: 5 },
-      ])('calls the API with a goal of $days when $level goal is clicked', async ({ level, days }) => {
-        // click on Casual goal
-        const button = await screen.queryByTestId(`weekly-learning-goal-input-${level}`);
-        fireEvent.click(button);
-        // Verify the request was made
-        await waitFor(() => {
-          expect(axiosMock.history.post[0].url).toMatch(goalUrl);
-          // subscribe is turned on automatically
-          expect(axiosMock.history.post[0].data).toMatch(`{"course_id":"${courseId}","days_per_week":${days},"subscribed_to_reminders":true}`);
-          // verify that the additional info about subscriptions shows up
-          expect(screen.queryByText(messages.goalReminderDetail.defaultMessage)).toBeInTheDocument();
-        });
-        expect(screen.getByLabelText(messages.setGoalReminder.defaultMessage)).toBeEnabled();
-      });
-
+      it.each`
+      level     | days 
+      ${'Casual'}  | ${1}
+      ${'Regular'} | ${3}
+      ${'Intense'} | ${5}
+        `('calls the API with a goal of $days when $level goal is clicked', async ({ level, days }) => {
+  // click on Casual goal
+  const button = await screen.queryByTestId(`weekly-learning-goal-input-${level}`);
+  fireEvent.click(button);
+  // Verify the request was made
+  await waitFor(() => {
+    expect(axiosMock.history.post[0].url).toMatch(goalUrl);
+    // subscribe is turned on automatically
+    expect(axiosMock.history.post[0].data).toMatch(`{"course_id":"${courseId}","days_per_week":${days},"subscribed_to_reminders":true}`);
+    // verify that the additional info about subscriptions shows up
+    expect(screen.queryByText(messages.goalReminderDetail.defaultMessage)).toBeInTheDocument();
+  });
+  expect(screen.getByLabelText(messages.setGoalReminder.defaultMessage)).toBeEnabled();
+});
       it('shows and hides subscribe to reminders additional text', async () => {
         const button = await screen.getByTestId('weekly-learning-goal-input-Regular');
         fireEvent.click(button);
@@ -789,14 +789,12 @@ describe('Outline Tab', () => {
         const requestingButton = screen.getByRole('button', { name: 'Request certificate' });
         fireEvent.click(requestingButton);
         expect(sendTrackEvent).toHaveBeenCalledTimes(1);
-        expect(sendTrackEvent).toHaveBeenCalledWith(
-          'edx.ui.lms.course_outline.certificate_alert_request_cert_button.clicked',
+        expect(sendTrackEvent).toHaveBeenCalledWith('edx.ui.lms.course_outline.certificate_alert_request_cert_button.clicked',
           {
             courserun_key: courseId,
             is_staff: false,
             org_key: 'edX',
-          },
-        );
+          });
       });
 
       it('tracks unverified cert button', async () => {
@@ -835,14 +833,12 @@ describe('Outline Tab', () => {
         const requestingButton = screen.getByRole('link', { name: 'Verify my ID' });
         fireEvent.click(requestingButton);
         expect(sendTrackEvent).toHaveBeenCalledTimes(1);
-        expect(sendTrackEvent).toHaveBeenCalledWith(
-          'edx.ui.lms.course_outline.certificate_alert_unverified_button.clicked',
+        expect(sendTrackEvent).toHaveBeenCalledWith('edx.ui.lms.course_outline.certificate_alert_unverified_button.clicked',
           {
             courserun_key: courseId,
             is_staff: false,
             org_key: 'edX',
-          },
-        );
+          });
       });
     });
 

src/course-home/outline-tab/Section.jsx

@@ -12,13 +12,13 @@ import { useModel } from '../../generic/model-store';
 import genericMessages from '../../generic/messages';
 import messages from './messages';
 
-const Section = ({
+function Section({
   courseId,
   defaultOpen,
   expand,
   intl,
   section,
-}) => {
+}) {
   const {
     complete,
     sequenceIds,
@@ -38,7 +38,6 @@ const Section = ({
 
   useEffect(() => {
     setOpen(defaultOpen);
-  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   const sectionTitle = (
@@ -110,7 +109,7 @@ const Section = ({
       </Collapsible>
     </li>
   );
-};
+}
 
 Section.propTypes = {
   courseId: PropTypes.string.isRequired,

src/course-home/outline-tab/SequenceLink.jsx

@@ -16,13 +16,13 @@ import EffortEstimate from '../../shared/effort-estimate';
 import { useModel } from '../../generic/model-store';
 import messages from './messages';
 
-const SequenceLink = ({
+function SequenceLink({
   id,
   intl,
   courseId,
   first,
   sequence,
-}) => {
+}) {
   const {
     complete,
     description,
@@ -39,50 +39,6 @@ const SequenceLink = ({
   const coursewareUrl = <Link to={`/course/${courseId}/${id}`}>{title}</Link>;
   const displayTitle = showLink ? coursewareUrl : title;
 
-  const dueDateMessage = (
-    <FormattedMessage
-      id="learning.outline.sequence-due-date-set"
-      defaultMessage="{description} due {assignmentDue}"
-      description="Used below an assignment title"
-      values={{
-        assignmentDue: (
-          <FormattedTime
-            key={`${id}-due`}
-            day="numeric"
-            month="short"
-            year="numeric"
-            timeZoneName="short"
-            value={due}
-            {...timezoneFormatArgs}
-          />
-        ),
-        description: description || '',
-      }}
-    />
-  );
-
-  const noDueDateMessage = (
-    <FormattedMessage
-      id="learning.outline.sequence-due-date-not-set"
-      defaultMessage="{description}"
-      description="Used below an assignment title"
-      values={{
-        assignmentDue: (
-          <FormattedTime
-            key={`${id}-due`}
-            day="numeric"
-            month="short"
-            year="numeric"
-            timeZoneName="short"
-            value={due}
-            {...timezoneFormatArgs}
-          />
-        ),
-        description: description || '',
-      }}
-    />
-  );
-
   return (
     <li>
       <div className={classNames('', { 'mt-2 pt-2 border-top border-light': !first })}>
@@ -114,15 +70,35 @@ const SequenceLink = ({
             <EffortEstimate className="ml-3 align-middle" block={sequence} />
           </div>
         </div>
-        <div className="row w-100 m-0 ml-3 pl-3">
-          <small className="text-body pl-2">
-            {due ? dueDateMessage : noDueDateMessage}
-          </small>
-        </div>
+        {due && (
+          <div className="row w-100 m-0 ml-3 pl-3">
+            <small className="text-body pl-2">
+              <FormattedMessage
+                id="learning.outline.sequence-due"
+                defaultMessage="{description} due {assignmentDue}"
+                description="Used below an assignment title"
+                values={{
+                  assignmentDue: (
+                    <FormattedTime
+                      key={`${id}-due`}
+                      day="numeric"
+                      month="short"
+                      year="numeric"
+                      timeZoneName="short"
+                      value={due}
+                      {...timezoneFormatArgs}
+                    />
+                  ),
+                  description: description || '',
+                }}
+              />
+            </small>
+          </div>
+        )}
       </div>
     </li>
   );
-};
+}
 
 SequenceLink.propTypes = {
   id: PropTypes.string.isRequired,

src/course-home/outline-tab/alerts/certificate-status-alert/CertificateStatusAlert.jsx

@@ -25,7 +25,7 @@ export const CERT_STATUS_TYPE = {
   UNVERIFIED: 'unverified',
 };
 
-const CertificateStatusAlert = ({ intl, payload }) => {
+function CertificateStatusAlert({ intl, payload }) {
   const dispatch = useDispatch();
   const {
     certificateAvailableDate,
@@ -189,7 +189,7 @@ const CertificateStatusAlert = ({ intl, payload }) => {
       )}
     </AlertWrapper>
   );
-};
+}
 
 CertificateStatusAlert.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/alerts/certificate-status-alert/hooks.js

@@ -75,7 +75,7 @@ function useCertificateStatusAlert(courseId) {
     && hasEnded
     && !userHasPassingGrade
   );
-  const payload = useMemo(() => ({
+  const payload = {
     certificateAvailableDate,
     certURL,
     certStatus,
@@ -85,12 +85,11 @@ function useCertificateStatusAlert(courseId) {
     org,
     notPassingCourseEnded,
     tabs,
-  }), [certStatus, certURL, certificateAvailableDate, courseId,
-    endBlock, notPassingCourseEnded, org, tabs, userTimezone]);
+  };
 
   useAlert(isVisible || notPassingCourseEnded, {
     code: 'clientCertificateStatusAlert',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'outline-course-alerts',
   });
 

src/course-home/outline-tab/alerts/course-end-alert/CourseEndAlert.jsx

@@ -9,11 +9,9 @@ import {
 import { Alert } from '@edx/paragon';
 import { Info } from '@edx/paragon/icons';
 
-const DAY_SEC = 24 * 60 * 60; // in seconds
-const DAY_MS = DAY_SEC * 1000; // in ms
-const YEAR_SEC = 365 * DAY_SEC; // in seconds
+const DAY_MS = 24 * 60 * 60 * 1000; // in ms
 
-const CourseEndAlert = ({ payload }) => {
+function CourseEndAlert({ payload }) {
   const {
     description,
     endDate,
@@ -22,19 +20,16 @@ const CourseEndAlert = ({ payload }) => {
 
   const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
 
-  let msg;
-  const delta = new Date(endDate) - new Date();
   const timeRemaining = (
     <FormattedRelativeTime
       key="timeRemaining"
-      value={delta / 1000}
-      numeric="auto"
-      // 1 year interval to help auto format. It won't format without updateIntervalInSeconds.
-      updateIntervalInSeconds={YEAR_SEC}
+      value={endDate}
       {...timezoneFormatArgs}
     />
   );
 
+  let msg;
+  const delta = new Date(endDate) - new Date();
   if (delta < DAY_MS) {
     const courseEndTime = (
       <FormattedTime
@@ -88,7 +83,7 @@ const CourseEndAlert = ({ payload }) => {
       {description}
     </Alert>
   );
-};
+}
 
 CourseEndAlert.propTypes = {
   payload: PropTypes.shape({

src/course-home/outline-tab/alerts/course-end-alert/hooks.js

@@ -23,15 +23,15 @@ export function useCourseEndAlert(courseId) {
   const endDate = endBlock ? new Date(endBlock.date) : null;
   const delta = endBlock ? endDate - new Date() : 0;
   const isVisible = isEnrolled && endBlock && delta > 0 && delta < WARNING_PERIOD_MS;
-  const payload = useMemo(() => ({
+  const payload = {
     description: endBlock && endBlock.description,
     endDate: endBlock && endBlock.date,
     userTimezone,
-  }), [endBlock, userTimezone]);
+  };
 
   useAlert(isVisible, {
     code: 'clientCourseEndAlert',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'outline-course-alerts',
   });
 

src/course-home/outline-tab/alerts/private-course-alert/PrivateCourseAlert.jsx

@@ -14,7 +14,7 @@ import outlineMessages from '../../messages';
 import useEnrollClickHandler from '../../../../alerts/enrollment-alert/clickHook';
 import { useModel } from '../../../../generic/model-store';
 
-const PrivateCourseAlert = ({ intl, payload }) => {
+function PrivateCourseAlert({ intl, payload }) {
   const {
     anonymousUser,
     canEnroll,
@@ -100,7 +100,7 @@ const PrivateCourseAlert = ({ intl, payload }) => {
       )}
     </Alert>
   );
-};
+}
 
 PrivateCourseAlert.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/alerts/private-course-alert/hooks.js

@@ -18,16 +18,16 @@ export function usePrivateCourseAlert(courseId) {
    *    2. the user is authenticated.
    * */
   const isVisible = !enrolledUser && (privateOutline || authenticatedUser !== null);
-  const payload = useMemo(() => ({
+  const payload = {
     anonymousUser: authenticatedUser === null,
     canEnroll: outline && outline.enrollAlert ? outline.enrollAlert.canEnroll : false,
     courseId,
-  }), [authenticatedUser, courseId, outline]);
+  };
 
   useAlert(isVisible, {
     code: 'clientPrivateCourseAlert',
     dismissible: false,
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'outline-private-alerts',
     type: ALERT_TYPES.WELCOME,
   });

src/course-home/outline-tab/alerts/scheduled-content-alert/ScheduledCotentAlert.jsx

@@ -3,7 +3,7 @@ import { Alert, Button } from '@edx/paragon';
 import React from 'react';
 import PropTypes from 'prop-types';
 
-const ScheduledContentAlert = ({ payload }) => {
+function ScheduledContentAlert({ payload }) {
   const {
     datesTabLink,
   } = payload;
@@ -38,7 +38,7 @@ const ScheduledContentAlert = ({ payload }) => {
       </div>
     </Alert>
   );
-};
+}
 
 ScheduledContentAlert.propTypes = {
   payload: PropTypes.shape({

src/course-home/outline-tab/alerts/scheduled-content-alert/hooks.js

@@ -20,12 +20,12 @@ const useScheduledContentAlert = (courseId) => {
     && !!Object.values(courses).find(course => course.hasScheduledContent === true)
   );
   const { isEnrolled } = useModel('courseHomeMeta', courseId);
-  const payload = useMemo(() => ({
+  const payload = {
     datesTabLink,
-  }), [datesTabLink]);
+  };
   useAlert(hasScheduledContent && isEnrolled, {
     code: 'ScheduledContentAlert',
-    payload,
+    payload: useMemo(() => payload, Object.values(payload).sort()),
     topic: 'outline-course-alerts',
   });
 

src/course-home/outline-tab/widgets/CourseDates.jsx

@@ -1,5 +1,6 @@
 import React from 'react';
 import { useSelector } from 'react-redux';
+import PropTypes from 'prop-types';
 
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 
@@ -7,9 +8,11 @@ import DateSummary from '../DateSummary';
 import messages from '../messages';
 import { useModel } from '../../../generic/model-store';
 
-const CourseDates = ({
+function CourseDates({
   intl,
-}) => {
+  /** [MM-P2P] Experiment */
+  mmp2p,
+}) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -37,6 +40,8 @@ const CourseDates = ({
               key={courseDateBlock.title + courseDateBlock.date}
               dateBlock={courseDateBlock}
               userTimezone={userTimezone}
+              /** [MM-P2P] Experiment */
+              mmp2p={mmp2p}
             />
           ))}
         </ol>
@@ -46,10 +51,17 @@ const CourseDates = ({
       </div>
     </section>
   );
-};
+}
 
 CourseDates.propTypes = {
   intl: intlShape.isRequired,
+  /** [MM-P2P] Experiment */
+  mmp2p: PropTypes.shape({}),
+};
+
+CourseDates.defaultProps = {
+  /** [MM-P2P] Experiment */
+  mmp2p: {},
 };
 
 export default injectIntl(CourseDates);

src/course-home/outline-tab/widgets/CourseHandouts.jsx

@@ -7,7 +7,7 @@ import LmsHtmlFragment from '../LmsHtmlFragment';
 import messages from '../messages';
 import { useModel } from '../../../generic/model-store';
 
-const CourseHandouts = ({ intl }) => {
+function CourseHandouts({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -29,7 +29,7 @@ const CourseHandouts = ({ intl }) => {
       />
     </section>
   );
-};
+}
 
 CourseHandouts.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/widgets/CourseTools.jsx

@@ -14,7 +14,7 @@ import messages from '../messages';
 import { useModel } from '../../../generic/model-store';
 import LaunchCourseHomeTourButton from '../../../product-tours/newUserCourseHomeTour/LaunchCourseHomeTourButton';
 
-const CourseTools = ({ intl }) => {
+function CourseTools({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -79,7 +79,7 @@ const CourseTools = ({ intl }) => {
       </ul>
     </section>
   );
-};
+}
 
 CourseTools.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/widgets/FlagButton.jsx

@@ -2,35 +2,35 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import classnames from 'classnames';
 
-const FlagButton = ({
+function FlagButton({
   buttonIcon,
   title,
   text,
   handleSelect,
   isSelected,
-}) => (
-  <button
-    type="button"
-    className={classnames(
-      'flag-button row w-100 align-content-between m-1.5 py-3.5',
-      isSelected ? 'flag-button-selected' : '',
-    )}
-    aria-checked={isSelected}
-    role="radio"
-    onClick={() => handleSelect()}
-    data-testid={`weekly-learning-goal-input-${title}`}
-  >
-    <div className="row w-100 m-0 justify-content-center pb-1">
-      {buttonIcon}
-    </div>
-    <div className={classnames('row w-100 m-0 justify-content-center small text-gray-700 pb-1', isSelected ? 'font-weight-bold' : '')}>
-      {title}
-    </div>
-    <div className={classnames('row w-100 m-0 justify-content-center micro text-gray-500', isSelected ? 'font-weight-bold' : '')}>
-      {text}
-    </div>
-  </button>
-);
+}) {
+  return (
+    <button
+      type="button"
+      className={classnames('flag-button row w-100 align-content-between m-1.5 py-3.5',
+        isSelected ? 'flag-button-selected' : '')}
+      aria-checked={isSelected}
+      role="radio"
+      onClick={() => handleSelect()}
+      data-testid={`weekly-learning-goal-input-${title}`}
+    >
+      <div className="row w-100 m-0 justify-content-center pb-1">
+        {buttonIcon}
+      </div>
+      <div className={classnames('row w-100 m-0 justify-content-center small text-gray-700 pb-1', isSelected ? 'font-weight-bold' : '')}>
+        {title}
+      </div>
+      <div className={classnames('row w-100 m-0 justify-content-center micro text-gray-500', isSelected ? 'font-weight-bold' : '')}>
+        {text}
+      </div>
+    </button>
+  );
+}
 
 FlagButton.propTypes = {
   buttonIcon: PropTypes.element.isRequired,

src/course-home/outline-tab/widgets/LearningGoalButton.jsx

@@ -9,12 +9,12 @@ import { ReactComponent as FlagRegularIcon } from './flag_gray.svg';
 import FlagButton from './FlagButton';
 import messages from '../messages';
 
-const LearningGoalButton = ({
+function LearningGoalButton({
   level,
   isSelected,
   handleSelect,
   intl,
-}) => {
+}) {
   const buttonDetails = {
     casual: {
       daysPerWeek: 1,
@@ -47,7 +47,7 @@ const LearningGoalButton = ({
       isSelected={isSelected}
     />
   );
-};
+}
 
 LearningGoalButton.propTypes = {
   level: PropTypes.string.isRequired,

src/course-home/outline-tab/widgets/ProctoringInfoPanel.jsx

@@ -10,7 +10,7 @@ import { getProctoringInfoData } from '../../data/api';
 import { fetchProctoringInfoResolved } from '../../data/slice';
 import { useModel } from '../../../generic/model-store';
 
-const ProctoringInfoPanel = ({ intl }) => {
+function ProctoringInfoPanel({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -128,7 +128,6 @@ const ProctoringInfoPanel = ({ intl }) => {
       .finally(() => {
         dispatch(fetchProctoringInfoResolved());
       });
-  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   let onboardingExamButton = null;
@@ -171,7 +170,6 @@ const ProctoringInfoPanel = ({ intl }) => {
   }
 
   return (
-    // eslint-disable-next-line react/jsx-no-useless-fragment
     <>
       { showInfoPanel && (
         <section className={`mb-4 p-3 outline-sidebar-proctoring-panel ${getBorderClass()}`}>
@@ -214,7 +212,7 @@ const ProctoringInfoPanel = ({ intl }) => {
       )}
     </>
   );
-};
+}
 
 ProctoringInfoPanel.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/widgets/StartOrResumeCourseCard.jsx

@@ -7,7 +7,7 @@ import { sendTrackingLogEvent } from '@edx/frontend-platform/analytics';
 import messages from '../messages';
 import { useModel } from '../../../generic/model-store';
 
-const StartOrResumeCourseCard = ({ intl }) => {
+function StartOrResumeCourseCard({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -56,11 +56,10 @@ const StartOrResumeCourseCard = ({ intl }) => {
         )}
       />
       {/* Footer is needed for internal vertical spacing to work out. If you can remove, be my guest */}
-      {/* eslint-disable-next-line react/jsx-no-useless-fragment */}
       <Card.Footer><></></Card.Footer>
     </Card>
   );
-};
+}
 
 StartOrResumeCourseCard.propTypes = {
   intl: intlShape.isRequired,

src/course-home/outline-tab/widgets/WeeklyLearningGoalCard.jsx

@@ -15,11 +15,11 @@ import { saveWeeklyLearningGoal } from '../../data';
 import { useModel } from '../../../generic/model-store';
 import './FlagButton.scss';
 
-const WeeklyLearningGoalCard = ({
+function WeeklyLearningGoalCard({
   daysPerWeek,
   subscribedToReminders,
   intl,
-}) => {
+}) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -36,7 +36,7 @@ const WeeklyLearningGoalCard = ({
   const [isGetReminderSelected, setGetReminderSelected] = useState(subscribedToReminders);
   const location = useLocation();
 
-  const handleSelect = (days, triggeredFromEmail = false) => {
+  function handleSelect(days, triggeredFromEmail = false) {
     // Set the subscription button if this is the first time selecting a goal
     const selectReminders = daysPerWeekGoal === null ? true : isGetReminderSelected;
     setGetReminderSelected(selectReminders);
@@ -51,10 +51,10 @@ const WeeklyLearningGoalCard = ({
         reminder_selected: selectReminders,
       });
       if (triggeredFromEmail) {
-        sendTrackEvent('enrollment.email.clicked.setgoal', {});
+        sendTrackEvent('welcome.email.clicked.setgoal', {});
       }
     }
-  };
+  }
 
   function handleSubscribeToReminders(event) {
     const isGetReminderChecked = event.target.checked;
@@ -84,7 +84,6 @@ const WeeklyLearningGoalCard = ({
         search: currentParams.toString(),
       });
     }
-  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [location.search]);
 
   return (
@@ -147,7 +146,7 @@ const WeeklyLearningGoalCard = ({
       )}
     </Card>
   );
-};
+}
 
 WeeklyLearningGoalCard.propTypes = {
   daysPerWeek: PropTypes.number,

src/course-home/outline-tab/widgets/WelcomeMessage.jsx

@@ -11,22 +11,21 @@ import messages from '../messages';
 import { useModel } from '../../../generic/model-store';
 import { dismissWelcomeMessage } from '../../data/thunks';
 
-const WelcomeMessage = ({ courseId, intl }) => {
+function WelcomeMessage({ courseId, intl }) {
   const {
     welcomeMessageHtml,
   } = useModel('outline', courseId);
 
+  if (!welcomeMessageHtml) {
+    return null;
+  }
+
   const [display, setDisplay] = useState(true);
 
   const shortWelcomeMessageHtml = truncate(welcomeMessageHtml, 100, { byWords: true, keepWhitespaces: true });
   const messageCanBeShortened = shortWelcomeMessageHtml.length < welcomeMessageHtml.length;
   const [showShortMessage, setShowShortMessage] = useState(messageCanBeShortened);
   const dispatch = useDispatch();
-
-  if (!welcomeMessageHtml) {
-    return null;
-  }
-
   return (
     <Alert
       data-testid="alert-container-welcome"
@@ -70,7 +69,7 @@ const WelcomeMessage = ({ courseId, intl }) => {
       </TransitionReplace>
     </Alert>
   );
-};
+}
 
 WelcomeMessage.propTypes = {
   courseId: PropTypes.string.isRequired,

src/course-home/progress-tab/ProgressHeader.jsx

@@ -9,7 +9,7 @@ import { useModel } from '../../generic/model-store';
 
 import messages from './messages';
 
-const ProgressHeader = ({ intl }) => {
+function ProgressHeader({ intl }) {
   const {
     courseId,
     targetUserId,
@@ -26,16 +26,18 @@ const ProgressHeader = ({ intl }) => {
     : intl.formatMessage(messages.progressHeader);
 
   return (
-    <div className="row w-100 m-0 mt-3 mb-4 justify-content-between">
-      <h1>{pageTitle}</h1>
-      {administrator && studioUrl && (
-      <Button variant="outline-primary" size="sm" className="align-self-center" href={studioUrl}>
-        {intl.formatMessage(messages.studioLink)}
-      </Button>
-      )}
-    </div>
+    <>
+      <div className="row w-100 m-0 mt-3 mb-4 justify-content-between">
+        <h1>{pageTitle}</h1>
+        {administrator && studioUrl && (
+          <Button variant="outline-primary" size="sm" className="align-self-center" href={studioUrl}>
+            {intl.formatMessage(messages.studioLink)}
+          </Button>
+        )}
+      </div>
+    </>
   );
-};
+}
 
 ProgressHeader.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/ProgressTab.jsx

@@ -12,7 +12,7 @@ import RelatedLinks from './related-links/RelatedLinks';
 
 import { useModel } from '../../generic/model-store';
 
-const ProgressTab = () => {
+function ProgressTab() {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -55,6 +55,6 @@ const ProgressTab = () => {
       </div>
     </>
   );
-};
+}
 
 export default ProgressTab;

src/course-home/progress-tab/certificate-status/CertificateStatus.jsx

@@ -14,7 +14,7 @@ import { DashboardLink, IdVerificationSupportLink, ProfileLink } from '../../../
 import { requestCert } from '../../data/thunks';
 import messages from './messages';
 
-const CertificateStatus = ({ intl }) => {
+function CertificateStatus({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -206,7 +206,6 @@ const CertificateStatus = ({ intl }) => {
       grade_variant: gradeEventName,
       certificate_status_variant: certEventName,
     });
-    // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   if (!certCase) {
@@ -258,7 +257,7 @@ const CertificateStatus = ({ intl }) => {
       </Card>
     </section>
   );
-};
+}
 
 CertificateStatus.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/course-completion/CompleteDonutSegment.jsx

@@ -6,13 +6,13 @@ import { OverlayTrigger, Popover } from '@edx/paragon';
 
 import messages from './messages';
 
-const CompleteDonutSegment = ({ completePercentage, intl, lockedPercentage }) => {
-  const [showCompletePopover, setShowCompletePopover] = useState(false);
-
+function CompleteDonutSegment({ completePercentage, intl, lockedPercentage }) {
   if (!completePercentage) {
     return null;
   }
 
+  const [showCompletePopover, setShowCompletePopover] = useState(false);
+
   const completeSegmentOffset = (3.6 * completePercentage) / 8;
   let completeTooltipDegree = completePercentage < 100 ? -completeSegmentOffset : 0;
 
@@ -78,7 +78,7 @@ const CompleteDonutSegment = ({ completePercentage, intl, lockedPercentage }) =>
       )}
     </g>
   );
-};
+}
 
 CompleteDonutSegment.propTypes = {
   completePercentage: PropTypes.number.isRequired,

src/course-home/progress-tab/course-completion/CompletionDonutChart.jsx

@@ -10,7 +10,7 @@ import IncompleteDonutSegment from './IncompleteDonutSegment';
 import LockedDonutSegment from './LockedDonutSegment';
 import messages from './messages';
 
-const CompletionDonutChart = ({ intl }) => {
+function CompletionDonutChart({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -60,7 +60,7 @@ const CompletionDonutChart = ({ intl }) => {
       </div>
     </>
   );
-};
+}
 
 CompletionDonutChart.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/course-completion/CourseCompletion.jsx

@@ -4,21 +4,23 @@ import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import CompletionDonutChart from './CompletionDonutChart';
 import messages from './messages';
 
-const CourseCompletion = ({ intl }) => (
-  <section className="text-dark-700 mb-4 rounded raised-card p-4">
-    <div className="row w-100 m-0">
-      <div className="col-12 col-sm-6 col-md-7 p-0">
-        <h2>{intl.formatMessage(messages.courseCompletion)}</h2>
-        <p className="small">
-          {intl.formatMessage(messages.completionBody)}
-        </p>
+function CourseCompletion({ intl }) {
+  return (
+    <section className="text-dark-700 mb-4 rounded raised-card p-4">
+      <div className="row w-100 m-0">
+        <div className="col-12 col-sm-6 col-md-7 p-0">
+          <h2>{intl.formatMessage(messages.courseCompletion)}</h2>
+          <p className="small">
+            {intl.formatMessage(messages.completionBody)}
+          </p>
+        </div>
+        <div className="col-12 col-sm-6 col-md-5 mt-sm-n3 p-0 text-center">
+          <CompletionDonutChart />
+        </div>
       </div>
-      <div className="col-12 col-sm-6 col-md-5 mt-sm-n3 p-0 text-center">
-        <CompletionDonutChart />
-      </div>
-    </div>
-  </section>
-);
+    </section>
+  );
+}
 
 CourseCompletion.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/course-completion/IncompleteDonutSegment.jsx

@@ -6,13 +6,13 @@ import { OverlayTrigger, Popover } from '@edx/paragon';
 
 import messages from './messages';
 
-const IncompleteDonutSegment = ({ incompletePercentage, intl }) => {
-  const [showIncompletePopover, setShowIncompletePopover] = useState(false);
-
+function IncompleteDonutSegment({ incompletePercentage, intl }) {
   if (!incompletePercentage) {
     return null;
   }
 
+  const [showIncompletePopover, setShowIncompletePopover] = useState(false);
+
   const incompleteSegmentOffset = (3.6 * incompletePercentage) / 16;
   const incompleteTooltipDegree = incompletePercentage < 100 ? incompleteSegmentOffset : 0;
 
@@ -49,7 +49,7 @@ const IncompleteDonutSegment = ({ incompletePercentage, intl }) => {
       </OverlayTrigger>
     </g>
   );
-};
+}
 
 IncompleteDonutSegment.propTypes = {
   incompletePercentage: PropTypes.number.isRequired,

src/course-home/progress-tab/course-completion/LockedDonutSegment.jsx

@@ -6,7 +6,7 @@ import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 
 import messages from './messages';
 
-const LockedDonutSegment = ({ intl, lockedPercentage }) => {
+function LockedDonutSegment({ intl, lockedPercentage }) {
   const [showLockedPopover, setShowLockedPopover] = useState(false);
 
   if (!lockedPercentage) {
@@ -62,7 +62,7 @@ const LockedDonutSegment = ({ intl, lockedPercentage }) => {
       </OverlayTrigger>
     </g>
   );
-};
+}
 
 LockedDonutSegment.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/credit-information/CreditInformation.jsx

@@ -10,7 +10,7 @@ import { DashboardLink } from '../../../shared/links';
 
 import messages from './messages';
 
-const CreditInformation = ({ intl }) => {
+function CreditInformation({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -106,7 +106,7 @@ const CreditInformation = ({ intl }) => {
       {requirements}
     </>
   );
-};
+}
 
 CreditInformation.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/course-grade/CourseGrade.jsx

@@ -11,7 +11,7 @@ import CreditInformation from '../../credit-information/CreditInformation';
 
 import messages from '../messages';
 
-const CourseGrade = ({ intl }) => {
+function CourseGrade({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -52,7 +52,7 @@ const CourseGrade = ({ intl }) => {
       </div>
     </section>
   );
-};
+}
 
 CourseGrade.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/course-grade/CourseGradeFooter.jsx

@@ -10,7 +10,7 @@ import { useModel } from '../../../../generic/model-store';
 import GradeRangeTooltip from './GradeRangeTooltip';
 import messages from '../messages';
 
-const CourseGradeFooter = ({ intl, passingGrade }) => {
+function CourseGradeFooter({ intl, passingGrade }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -83,7 +83,7 @@ const CourseGradeFooter = ({ intl, passingGrade }) => {
       </div>
     </div>
   );
-};
+}
 
 CourseGradeFooter.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/course-grade/CourseGradeHeader.jsx

@@ -10,7 +10,7 @@ import { Button, Icon } from '@edx/paragon';
 import { useModel } from '../../../../generic/model-store';
 import messages from '../messages';
 
-const CourseGradeHeader = ({ intl }) => {
+function CourseGradeHeader({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -81,7 +81,7 @@ const CourseGradeHeader = ({ intl }) => {
       )}
     </div>
   );
-};
+}
 
 CourseGradeHeader.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/course-grade/CurrentGradeTooltip.jsx

@@ -11,7 +11,7 @@ import { useModel } from '../../../../generic/model-store';
 
 import messages from '../messages';
 
-const CurrentGradeTooltip = ({ intl, tooltipClassName }) => {
+function CurrentGradeTooltip({ intl, tooltipClassName }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -62,7 +62,7 @@ const CurrentGradeTooltip = ({ intl, tooltipClassName }) => {
       </text>
     </>
   );
-};
+}
 
 CurrentGradeTooltip.defaultProps = {
   tooltipClassName: '',

src/course-home/progress-tab/grades/course-grade/GradeBar.jsx

@@ -11,7 +11,7 @@ import PassingGradeTooltip from './PassingGradeTooltip';
 
 import messages from '../messages';
 
-const GradeBar = ({ intl, passingGrade }) => {
+function GradeBar({ intl, passingGrade }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -49,7 +49,7 @@ const GradeBar = ({ intl, passingGrade }) => {
       </svg>
     </div>
   );
-};
+}
 
 GradeBar.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/course-grade/GradeRangeTooltip.jsx

@@ -11,7 +11,7 @@ import { useModel } from '../../../../generic/model-store';
 
 import messages from '../messages';
 
-const GradeRangeTooltip = ({ intl, iconButtonClassName, passingGrade }) => {
+function GradeRangeTooltip({ intl, iconButtonClassName, passingGrade }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -72,7 +72,7 @@ const GradeRangeTooltip = ({ intl, iconButtonClassName, passingGrade }) => {
       />
     </OverlayTrigger>
   );
-};
+}
 
 GradeRangeTooltip.defaultProps = {
   iconButtonClassName: '',

src/course-home/progress-tab/grades/course-grade/PassingGradeTooltip.jsx

@@ -8,7 +8,7 @@ import { OverlayTrigger, Popover } from '@edx/paragon';
 
 import messages from '../messages';
 
-const PassingGradeTooltip = ({ intl, passingGrade, tooltipClassName }) => {
+function PassingGradeTooltip({ intl, passingGrade, tooltipClassName }) {
   const isLocaleRtl = isRtl(getLocale());
 
   let passingGradeDirection = passingGrade < 50 ? '' : '-';
@@ -47,7 +47,7 @@ const PassingGradeTooltip = ({ intl, passingGrade, tooltipClassName }) => {
       </text>
     </>
   );
-};
+}
 
 PassingGradeTooltip.defaultProps = {
   tooltipClassName: '',

src/course-home/progress-tab/grades/detailed-grades/DetailedGrades.jsx

@@ -12,7 +12,7 @@ import DetailedGradesTable from './DetailedGradesTable';
 
 import messages from '../messages';
 
-const DetailedGrades = ({ intl }) => {
+function DetailedGrades({ intl }) {
   const { administrator } = getAuthenticatedUser();
   const {
     courseId,
@@ -79,7 +79,7 @@ const DetailedGrades = ({ intl }) => {
       )}
     </section>
   );
-};
+}
 
 DetailedGrades.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/detailed-grades/DetailedGradesTable.jsx

@@ -10,7 +10,7 @@ import { useModel } from '../../../../generic/model-store';
 import messages from '../messages';
 import SubsectionTitleCell from './SubsectionTitleCell';
 
-const DetailedGradesTable = ({ intl }) => {
+function DetailedGradesTable({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -64,7 +64,7 @@ const DetailedGradesTable = ({ intl }) => {
       );
     })
   );
-};
+}
 
 DetailedGradesTable.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/detailed-grades/ProblemScoreDrawer.jsx

@@ -8,7 +8,7 @@ import {
 
 import messages from '../messages';
 
-const ProblemScoreDrawer = ({ intl, problemScores, subsection }) => {
+function ProblemScoreDrawer({ intl, problemScores, subsection }) {
   const isLocaleRtl = isRtl(getLocale());
   return (
     <span className="row w-100 m-0 x-small ml-4 pt-2 pl-1 text-gray-700 flex-nowrap">
@@ -22,7 +22,7 @@ const ProblemScoreDrawer = ({ intl, problemScores, subsection }) => {
       </div>
     </span>
   );
-};
+}
 
 ProblemScoreDrawer.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/detailed-grades/SubsectionTitleCell.jsx

@@ -14,7 +14,7 @@ import messages from '../messages';
 import { useModel } from '../../../../generic/model-store';
 import ProblemScoreDrawer from './ProblemScoreDrawer';
 
-const SubsectionTitleCell = ({ intl, subsection }) => {
+function SubsectionTitleCell({ intl, subsection }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -99,7 +99,7 @@ const SubsectionTitleCell = ({ intl, subsection }) => {
       </Collapsible.Body>
     </Collapsible.Advanced>
   );
-};
+}
 
 SubsectionTitleCell.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/grade-summary/AssignmentTypeCell.jsx

@@ -7,9 +7,9 @@ import { Icon } from '@edx/paragon';
 import { useModel } from '../../../../generic/model-store';
 import messages from '../messages';
 
-const AssignmentTypeCell = ({
+function AssignmentTypeCell({
   intl, assignmentType, footnoteMarker, footnoteId, locked,
-}) => {
+}) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -42,7 +42,7 @@ const AssignmentTypeCell = ({
       </div>
     </div>
   );
-};
+}
 
 AssignmentTypeCell.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/grade-summary/DroppableAssignmentFootnote.jsx

@@ -7,7 +7,7 @@ import { FormattedMessage, injectIntl, intlShape } from '@edx/frontend-platform/
 import messages from '../messages';
 import { useModel } from '../../../../generic/model-store';
 
-const DroppableAssignmentFootnote = ({ footnotes, intl }) => {
+function DroppableAssignmentFootnote({ footnotes, intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -37,7 +37,7 @@ const DroppableAssignmentFootnote = ({ footnotes, intl }) => {
       </ul>
     </>
   );
-};
+}
 
 DroppableAssignmentFootnote.propTypes = {
   footnotes: PropTypes.arrayOf(PropTypes.shape({

src/course-home/progress-tab/grades/grade-summary/GradeSummary.jsx

@@ -5,7 +5,7 @@ import { useModel } from '../../../../generic/model-store';
 import GradeSummaryHeader from './GradeSummaryHeader';
 import GradeSummaryTable from './GradeSummaryTable';
 
-const GradeSummary = () => {
+function GradeSummary() {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -28,6 +28,6 @@ const GradeSummary = () => {
       <GradeSummaryTable setAllOfSomeAssignmentTypeIsLocked={setAllOfSomeAssignmentTypeIsLocked} />
     </section>
   );
-};
+}
 
 export default GradeSummary;

src/course-home/progress-tab/grades/grade-summary/GradeSummaryHeader.jsx

@@ -11,7 +11,7 @@ import { Blocked, InfoOutline } from '@edx/paragon/icons';
 import messages from '../messages';
 import { useModel } from '../../../../generic/model-store';
 
-const GradeSummaryHeader = ({ intl, allOfSomeAssignmentTypeIsLocked }) => {
+function GradeSummaryHeader({ intl, allOfSomeAssignmentTypeIsLocked }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -54,7 +54,7 @@ const GradeSummaryHeader = ({ intl, allOfSomeAssignmentTypeIsLocked }) => {
       )}
     </div>
   );
-};
+}
 
 GradeSummaryHeader.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/grade-summary/GradeSummaryTable.jsx

@@ -14,7 +14,7 @@ import GradeSummaryTableFooter from './GradeSummaryTableFooter';
 
 import messages from '../messages';
 
-const GradeSummaryTable = ({ intl, setAllOfSomeAssignmentTypeIsLocked }) => {
+function GradeSummaryTable({ intl, setAllOfSomeAssignmentTypeIsLocked }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -79,16 +79,6 @@ const GradeSummaryTable = ({ intl, setAllOfSomeAssignmentTypeIsLocked }) => {
       weightedGrade: { weightedGrade: `${(assignment.weightedGrade * 100).toFixed(0)}${isLocaleRtl ? '\u200f' : ''}%`, locked },
     };
   });
-  const getAssignmentTypeCell = (value) => (
-    <AssignmentTypeCell
-      assignmentType={value.type} // eslint-disable-line react/prop-types
-      footnoteId={value.footnoteId} // eslint-disable-line react/prop-types
-      footnoteMarker={value.footnoteMarker} // eslint-disable-line react/prop-types
-      locked={value.locked} // eslint-disable-line react/prop-types
-    />
-  );
-
-  const getCell = (locked, value) => <span className={locked ? 'greyed-out' : ''}>{value}</span>;
 
   return (
     <>
@@ -99,28 +89,45 @@ const GradeSummaryTable = ({ intl, setAllOfSomeAssignmentTypeIsLocked }) => {
           {
             Header: `${intl.formatMessage(messages.assignmentType)}`,
             accessor: 'type',
-            Cell: ({ value }) => getAssignmentTypeCell(value),
+            // eslint-disable-next-line react/prop-types
+            Cell: ({ value }) => (
+              <AssignmentTypeCell
+                assignmentType={value.type} // eslint-disable-line react/prop-types
+                footnoteId={value.footnoteId} // eslint-disable-line react/prop-types
+                footnoteMarker={value.footnoteMarker} // eslint-disable-line react/prop-types
+                locked={value.locked} // eslint-disable-line react/prop-types
+              />
+            ),
             headerClassName: 'h5 mb-0',
           },
           {
             Header: `${intl.formatMessage(messages.weight)}`,
             accessor: 'weight',
             headerClassName: 'justify-content-end h5 mb-0',
-            Cell: ({ value }) => getCell(value.locked, value.weight),
+            // eslint-disable-next-line react/prop-types
+            Cell: ({ value }) => (
+              <span className={value.locked ? 'greyed-out' : ''}>{value.weight}</span> // eslint-disable-line react/prop-types
+            ),
             cellClassName: 'text-right small',
           },
           {
             Header: `${intl.formatMessage(messages.grade)}`,
             accessor: 'grade',
             headerClassName: 'justify-content-end h5 mb-0',
-            Cell: ({ value }) => getCell(value.locked, value.grade),
+            // eslint-disable-next-line react/prop-types
+            Cell: ({ value }) => (
+              <span className={value.locked ? 'greyed-out' : ''}>{value.grade}</span> // eslint-disable-line react/prop-types
+            ),
             cellClassName: 'text-right small',
           },
           {
             Header: `${intl.formatMessage(messages.weightedGrade)}`,
             accessor: 'weightedGrade',
             headerClassName: 'justify-content-end h5 mb-0 text-right',
-            Cell: ({ value }) => getCell(value.locked, value.weightedGrade),
+            // eslint-disable-next-line react/prop-types
+            Cell: ({ value }) => (
+              <span className={value.locked ? 'greyed-out' : ''}>{value.weightedGrade}</span> // eslint-disable-line react/prop-types
+            ),
             cellClassName: 'text-right font-weight-bold small',
           },
         ]}
@@ -134,7 +141,7 @@ const GradeSummaryTable = ({ intl, setAllOfSomeAssignmentTypeIsLocked }) => {
       )}
     </>
   );
-};
+}
 
 GradeSummaryTable.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/grades/grade-summary/GradeSummaryTableFooter.jsx

@@ -9,7 +9,7 @@ import { useModel } from '../../../../generic/model-store';
 
 import messages from '../messages';
 
-const GradeSummaryTableFooter = ({ intl }) => {
+function GradeSummaryTableFooter({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -34,7 +34,7 @@ const GradeSummaryTableFooter = ({ intl }) => {
       </div>
     </DataTable.TableFooter>
   );
-};
+}
 
 GradeSummaryTableFooter.propTypes = {
   intl: intlShape.isRequired,

src/course-home/progress-tab/related-links/RelatedLinks.jsx

@@ -9,7 +9,7 @@ import { Hyperlink } from '@edx/paragon';
 import messages from './messages';
 import { useModel } from '../../../generic/model-store';
 
-const RelatedLinks = ({ intl }) => {
+function RelatedLinks({ intl }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -56,7 +56,7 @@ const RelatedLinks = ({ intl }) => {
       </ul>
     </section>
   );
-};
+}
 
 RelatedLinks.propTypes = {
   intl: intlShape.isRequired,

src/course-home/suggested-schedule-messaging/ShiftDatesAlert.jsx

@@ -14,7 +14,7 @@ import { resetDeadlines } from '../data';
 import { useModel } from '../../generic/model-store';
 import messages from './messages';
 
-const ShiftDatesAlert = ({ fetch, intl, model }) => {
+function ShiftDatesAlert({ fetch, intl, model }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -29,12 +29,12 @@ const ShiftDatesAlert = ({ fetch, intl, model }) => {
     missedGatedContent,
   } = datesBannerInfo;
 
-  const dispatch = useDispatch();
-
   if (!missedDeadlines || missedGatedContent || hasEnded) {
     return null;
   }
 
+  const dispatch = useDispatch();
+
   return (
     <Alert variant="warning">
       <Row className="w-100 m-0">
@@ -55,7 +55,7 @@ const ShiftDatesAlert = ({ fetch, intl, model }) => {
       </Row>
     </Alert>
   );
-};
+}
 
 ShiftDatesAlert.propTypes = {
   fetch: PropTypes.func.isRequired,

src/course-home/suggested-schedule-messaging/SuggestedScheduleHeader.jsx

@@ -3,11 +3,13 @@ import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 
 import messages from './messages';
 
-const SuggestedScheduleHeader = ({ intl }) => (
-  <p className="large">
-    {intl.formatMessage(messages.suggestedSchedule)}
-  </p>
-);
+function SuggestedScheduleHeader({ intl }) {
+  return (
+    <p className="large">
+      {intl.formatMessage(messages.suggestedSchedule)}
+    </p>
+  );
+}
 
 SuggestedScheduleHeader.propTypes = {
   intl: intlShape.isRequired,

src/course-home/suggested-schedule-messaging/UpgradeToCompleteAlert.jsx

@@ -12,7 +12,7 @@ import {
 import { useModel } from '../../generic/model-store';
 import messages from './messages';
 
-const UpgradeToCompleteAlert = ({ intl, logUpgradeLinkClick }) => {
+function UpgradeToCompleteAlert({ intl, logUpgradeLinkClick }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -55,7 +55,7 @@ const UpgradeToCompleteAlert = ({ intl, logUpgradeLinkClick }) => {
       </Row>
     </Alert>
   );
-};
+}
 
 UpgradeToCompleteAlert.propTypes = {
   intl: intlShape.isRequired,

src/course-home/suggested-schedule-messaging/UpgradeToShiftDatesAlert.jsx

@@ -13,7 +13,7 @@ import {
 import { useModel } from '../../generic/model-store';
 import messages from './messages';
 
-const UpgradeToShiftDatesAlert = ({ intl, logUpgradeLinkClick, model }) => {
+function UpgradeToShiftDatesAlert({ intl, logUpgradeLinkClick, model }) {
   const {
     courseId,
   } = useSelector(state => state.courseHome);
@@ -57,7 +57,7 @@ const UpgradeToShiftDatesAlert = ({ intl, logUpgradeLinkClick, model }) => {
       </Row>
     </Alert>
   );
-};
+}
 
 UpgradeToShiftDatesAlert.propTypes = {
   intl: intlShape.isRequired,

src/course-tabs/CourseTabsNavigation.jsx

@@ -6,28 +6,30 @@ import classNames from 'classnames';
 import messages from './messages';
 import Tabs from '../generic/tabs/Tabs';
 
-const CourseTabsNavigation = ({
+function CourseTabsNavigation({
   activeTabSlug, className, tabs, intl,
-}) => (
-  <div id="courseTabsNavigation" className={classNames('course-tabs-navigation', className)}>
-    <div className="container-xl">
-      <Tabs
-        className="nav-underline-tabs"
-        aria-label={intl.formatMessage(messages.courseMaterial)}
-      >
-        {tabs.map(({ url, title, slug }) => (
-          <a
-            key={slug}
-            className={classNames('nav-item flex-shrink-0 nav-link', { active: slug === activeTabSlug })}
-            href={url}
-          >
-            {title}
-          </a>
-        ))}
-      </Tabs>
+}) {
+  return (
+    <div id="courseTabsNavigation" className={classNames('course-tabs-navigation', className)}>
+      <div className="container-xl">
+        <Tabs
+          className="nav-underline-tabs"
+          aria-label={intl.formatMessage(messages.courseMaterial)}
+        >
+          {tabs.map(({ url, title, slug }) => (
+            <a
+              key={slug}
+              className={classNames('nav-item flex-shrink-0 nav-link', { active: slug === activeTabSlug })}
+              href={url}
+            >
+              {title}
+            </a>
+          ))}
+        </Tabs>
+      </div>
     </div>
-  </div>
-);
+  );
+}
 
 CourseTabsNavigation.propTypes = {
   activeTabSlug: PropTypes.string,

src/courseware/CoursewareContainer.jsx

@@ -54,32 +54,32 @@ const checkSectionToSequenceRedirect = memoize((courseStatus, courseId, sequence
 });
 
 // Look at where this is called in componentDidUpdate for more info about its usage
-const checkUnitToSequenceUnitRedirect = memoize(
-  (courseStatus, courseId, sequenceStatus, sequenceMightBeUnit, sequenceId, section, routeUnitId) => {
-    if (courseStatus === 'loaded' && sequenceStatus === 'failed' && !section && !routeUnitId) {
-      if (sequenceMightBeUnit) {
-        // If the sequence failed to load as a sequence, but it is marked as a possible unit, then
-        // we need to look up the correct parent sequence for it, and redirect there.
-        const unitId = sequenceId; // just for clarity during the rest of this method
-        getSequenceForUnitDeprecated(courseId, unitId).then(
-          parentId => {
-            if (parentId) {
-              history.replace(`/course/${courseId}/${parentId}/${unitId}`);
-            } else {
-              history.replace(`/course/${courseId}`);
-            }
-          },
-          () => { // error case
+const checkUnitToSequenceUnitRedirect = memoize((
+  courseStatus, courseId, sequenceStatus, sequenceMightBeUnit, sequenceId, section, routeUnitId,
+) => {
+  if (courseStatus === 'loaded' && sequenceStatus === 'failed' && !section && !routeUnitId) {
+    if (sequenceMightBeUnit) {
+      // If the sequence failed to load as a sequence, but it is marked as a possible unit, then we need to look up the
+      // correct parent sequence for it, and redirect there.
+      const unitId = sequenceId; // just for clarity during the rest of this method
+      getSequenceForUnitDeprecated(courseId, unitId).then(
+        parentId => {
+          if (parentId) {
+            history.replace(`/course/${courseId}/${parentId}/${unitId}`);
+          } else {
             history.replace(`/course/${courseId}`);
-          },
-        );
-      } else {
-        // Invalid sequence that isn't a unit either. Redirect up to main course.
-        history.replace(`/course/${courseId}`);
-      }
+          }
+        },
+        () => { // error case
+          history.replace(`/course/${courseId}`);
+        },
+      );
+    } else {
+      // Invalid sequence that isn't a unit either. Redirect up to main course.
+      history.replace(`/course/${courseId}`);
     }
-  },
-);
+  }
+});
 
 // Look at where this is called in componentDidUpdate for more info about its usage
 const checkSequenceToSequenceUnitRedirect = memoize((courseId, sequenceStatus, sequence, unitId) => {
@@ -225,9 +225,9 @@ class CoursewareContainer extends Component {
     // Check unit to sequence-unit redirect:
     //    /course/:courseId/:unitId -> /course/:courseId/:sequenceId/:unitId
     // by filling in the ID of the parent sequence of :unitId.
-    checkUnitToSequenceUnitRedirect((
-      courseStatus, courseId, sequenceStatus, sequenceMightBeUnit, sequenceId, sectionViaSequenceId, routeUnitId
-    ));
+    checkUnitToSequenceUnitRedirect(
+      courseStatus, courseId, sequenceStatus, sequenceMightBeUnit, sequenceId, sectionViaSequenceId, routeUnitId,
+    );
 
     // Check sequence to sequence-unit redirect:
     //    /course/:courseId/:sequenceId -> /course/:courseId/:sequenceId/:unitId
@@ -255,7 +255,7 @@ class CoursewareContainer extends Component {
 
     this.props.checkBlockCompletion(courseId, sequenceId, routeUnitId);
     history.push(`/course/${courseId}/${sequenceId}/${nextUnitId}`);
-  };
+  }
 
   handleNextSequenceClick = () => {
     const {
@@ -274,14 +274,14 @@ class CoursewareContainer extends Component {
         handleNextSectionCelebration(sequenceId, nextSequence.id);
       }
     }
-  };
+  }
 
   handlePreviousSequenceClick = () => {
     const { previousSequence, courseId } = this.props;
     if (previousSequence !== null) {
       history.push(`/course/${courseId}/${previousSequence.id}/last`);
     }
-  };
+  }
 
   render() {
     const {
@@ -320,7 +320,6 @@ const sequenceShape = PropTypes.shape({
   id: PropTypes.string.isRequired,
   unitIds: PropTypes.arrayOf(PropTypes.string),
   sectionId: PropTypes.string.isRequired,
-  saveUnitPosition: PropTypes.any, // eslint-disable-line
 });
 
 const sectionShape = PropTypes.shape({

src/courseware/CoursewareContainer.test.jsx

@@ -24,13 +24,15 @@ import { buildOutlineFromBlocks } from './data/__factories__/learningSequencesOu
 // to have been passed into the component.  Separate tests can handle unit rendering, but this
 // proves that the component is rendered and receives the correct props.  We probably COULD render
 // Unit.jsx and its iframe in this test, but it's already complex enough.
+function MockUnit({ courseId, id }) { // eslint-disable-line react/prop-types
+  return (
+    <div className="fake-unit">Unit Contents {courseId} {id}</div>
+  );
+}
 
 jest.mock(
   './course/sequence/Unit',
-  // eslint-disable-next-line react/prop-types
-  () => function ({ courseId, id }) {
-    return <div className="fake-unit">Unit Contents {courseId} {id}</div>;
-  },
+  () => MockUnit,
 );
 
 jest.mock('@edx/frontend-platform/analytics');
@@ -170,7 +172,7 @@ describe('CoursewareContainer', () => {
   });
 
   describe('when receiving successful course data', () => {
-    // const courseMetadata = defaultCourseMetadata;
+    const courseMetadata = defaultCourseMetadata;
     const courseHomeMetadata = defaultCourseHomeMetadata;
     const courseId = defaultCourseId;
 
@@ -248,7 +250,9 @@ describe('CoursewareContainer', () => {
     describe('when the URL contains a section ID instead of a sequence ID', () => {
       const {
         courseBlocks, unitTree, sequenceTree, sectionTree,
-      } = buildBinaryCourseBlocks(courseId, courseHomeMetadata.title);
+      } = buildBinaryCourseBlocks(
+        courseId, courseHomeMetadata.title,
+      );
 
       function setUrl(urlSequenceId, urlUnitId = null) {
         history.push(`/course/${courseId}/${urlSequenceId}/${urlUnitId || ''}`);
@@ -264,22 +268,22 @@ describe('CoursewareContainer', () => {
         setUpMockRequests({ courseBlocks });
       });
 
-      // describe('when the URL contains a unit ID', () => {
-      //   it('should ignore the section ID and redirect based on the unit ID', async () => {
-      //     const urlUnit = unitTree[1][1][1];
-      //     setUrl(sectionTree[1].id, urlUnit.id);
-      //     const container = await loadContainer();
-      //     assertLoadedHeader(container);
-      //     assertSequenceNavigation(container, 2);
-      //     assertLocation(container, sequenceTree[1][1].id, urlUnit.id);
-      //   });
+      describe('when the URL contains a unit ID', () => {
+        it('should ignore the section ID and redirect based on the unit ID', async () => {
+          const urlUnit = unitTree[1][1][1];
+          setUrl(sectionTree[1].id, urlUnit.id);
+          const container = await loadContainer();
+          assertLoadedHeader(container);
+          assertSequenceNavigation(container, 2);
+          assertLocation(container, sequenceTree[1][1].id, urlUnit.id);
+        });
 
-      //   it('should ignore invalid unit IDs and redirect to the course root', async () => {
-      //     setUrl(sectionTree[1].id, 'foobar');
-      //     await loadContainer();
-      //     expect(global.location.href).toEqual(`http://localhost/course/${courseId}`);
-      //   });
-      // });
+        it('should ignore invalid unit IDs and redirect to the course root', async () => {
+          setUrl(sectionTree[1].id, 'foobar');
+          await loadContainer();
+          expect(global.location.href).toEqual(`http://localhost/course/${courseId}`);
+        });
+      });
 
       describe('when the URL does not contain a unit ID', () => {
         it('should choose a unit within the section\'s first sequence', async () => {
@@ -332,26 +336,26 @@ describe('CoursewareContainer', () => {
       });
     });
 
-    // describe('when the URL only contains a unit ID', () => {
-    //   const { courseBlocks, unitTree, sequenceTree } = buildBinaryCourseBlocks(courseId, courseMetadata.name);
+    describe('when the URL only contains a unit ID', () => {
+      const { courseBlocks, unitTree, sequenceTree } = buildBinaryCourseBlocks(courseId, courseMetadata.name);
 
-    //   beforeEach(async () => {
-    //     setUpMockRequests({ courseBlocks });
-    //   });
+      beforeEach(async () => {
+        setUpMockRequests({ courseBlocks });
+      });
 
-    //   it('should insert the sequence ID into the URL', async () => {
-    //     const unit = unitTree[1][0][1];
-    //     history.push(`/course/${courseId}/${unit.id}`);
-    //     const container = await loadContainer();
+      it('should insert the sequence ID into the URL', async () => {
+        const unit = unitTree[1][0][1];
+        history.push(`/course/${courseId}/${unit.id}`);
+        const container = await loadContainer();
 
-    //     assertLoadedHeader(container);
-    //     assertSequenceNavigation(container, 2);
-    //     const expectedSequenceId = sequenceTree[1][0].id;
-    //     const expectedUrl = `http://localhost/course/${courseId}/${expectedSequenceId}/${unit.id}`;
-    //     expect(global.location.href).toEqual(expectedUrl);
-    //     expect(container.querySelector('.fake-unit')).toHaveTextContent(unit.id);
-    //   });
-    // });
+        assertLoadedHeader(container);
+        assertSequenceNavigation(container, 2);
+        const expectedSequenceId = sequenceTree[1][0].id;
+        const expectedUrl = `http://localhost/course/${courseId}/${expectedSequenceId}/${unit.id}`;
+        expect(global.location.href).toEqual(expectedUrl);
+        expect(container.querySelector('.fake-unit')).toHaveTextContent(unit.id);
+      });
+    });
 
     describe('when the URL contains a course ID and sequence ID', () => {
       const sequenceBlock = defaultSequenceBlock;
@@ -422,20 +426,20 @@ describe('CoursewareContainer', () => {
       });
     });
 
-    // describe('when the current sequence is an exam', () => {
-    //   const { location } = window;
+    describe('when the current sequence is an exam', () => {
+      const { location } = window;
 
-    //   beforeEach(() => {
-    //     delete window.location;
-    //     window.location = {
-    //       assign: jest.fn(),
-    //     };
-    //   });
+      beforeEach(() => {
+        delete window.location;
+        window.location = {
+          assign: jest.fn(),
+        };
+      });
 
-    //   afterEach(() => {
-    //     window.location = location;
-    //   });
-    // });
+      afterEach(() => {
+        window.location = location;
+      });
+    });
   });
 
   describe('when receiving a course_access error_code', () => {

src/courseware/CoursewareRedirectLandingPage.jsx

@@ -7,9 +7,7 @@ import { PageRoute } from '@edx/frontend-platform/react';
 import queryString from 'query-string';
 import PageLoading from '../generic/PageLoading';
 
-import DecodePageRoute from '../decode-page-route';
-
-const CoursewareRedirectLandingPage = () => {
+export default () => {
   const { path } = useRouteMatch();
   return (
     <div className="flex-grow-1">
@@ -23,7 +21,7 @@ const CoursewareRedirectLandingPage = () => {
       />
 
       <Switch>
-        <DecodePageRoute
+        <PageRoute
           path={`${path}/survey/:courseId`}
           render={({ match }) => {
             global.location.assign(`${getConfig().LMS_BASE_URL}/courses/${match.params.courseId}/survey`);
@@ -42,7 +40,7 @@ const CoursewareRedirectLandingPage = () => {
             global.location.assign(`${getConfig().LMS_BASE_URL}${consentPath}`);
           }}
         />
-        <DecodePageRoute
+        <PageRoute
           path={`${path}/home/:courseId`}
           render={({ match }) => {
             global.location.assign(`/course/${match.params.courseId}/home`);
@@ -52,5 +50,3 @@ const CoursewareRedirectLandingPage = () => {
     </div>
   );
 };
-
-export default CoursewareRedirectLandingPage;

src/courseware/course/Course.jsx

@@ -18,7 +18,10 @@ import SidebarTriggers from './sidebar/SidebarTriggers';
 import { useModel } from '../../generic/model-store';
 import { getSessionStorage, setSessionStorage } from '../../data/sessionStorage';
 
-const Course = ({
+/** [MM-P2P] Experiment */
+import { initCoursewareMMP2P, MMP2PBlockModal } from '../../experiments/mm-p2p';
+
+function Course({
   courseId,
   sequenceId,
   unitId,
@@ -26,7 +29,7 @@ const Course = ({
   previousSequenceHandler,
   unitNavigationHandler,
   windowWidth,
-}) => {
+}) {
   const course = useModel('coursewareMeta', courseId);
   const {
     celebrations,
@@ -66,6 +69,9 @@ const Course = ({
     }
   }
 
+  /** [MM-P2P] Experiment */
+  const MMP2P = initCoursewareMMP2P(courseId, sequenceId, unitId);
+
   useEffect(() => {
     const celebrateFirstSection = celebrations && celebrations.firstSection;
     setFirstSectionCelebrationOpen(shouldCelebrateOnSectionLoad(
@@ -89,6 +95,8 @@ const Course = ({
           sequenceId={sequenceId}
           isStaff={isStaff}
           unitId={unitId}
+          //* * [MM-P2P] Experiment */
+          mmp2p={MMP2P}
         />
         {shouldDisplayTriggers && (
           <SidebarTriggers />
@@ -103,6 +111,8 @@ const Course = ({
         unitNavigationHandler={unitNavigationHandler}
         nextSequenceHandler={nextSequenceHandler}
         previousSequenceHandler={previousSequenceHandler}
+        //* * [MM-P2P] Experiment */
+        mmp2p={MMP2P}
       />
       <CelebrationModal
         courseId={courseId}
@@ -116,9 +126,11 @@ const Course = ({
         onClose={() => setWeeklyGoalCelebrationOpen(false)}
       />
       <ContentTools course={course} />
+      { /** [MM-P2P] Experiment */ }
+      { MMP2P.meta.modalLock && <MMP2PBlockModal options={MMP2P} /> }
     </SidebarProvider>
   );
-};
+}
 
 Course.propTypes = {
   courseId: PropTypes.string,
@@ -136,7 +148,7 @@ Course.defaultProps = {
   unitId: null,
 };
 
-const CourseWrapper = (props) => {
+function CourseWrapper(props) {
   // useWindowSize initially returns an undefined width intentionally at first.
   // See https://www.joshwcomeau.com/react/the-perils-of-rehydration/ for why.
   // But <Course> has some tricky window-size-dependent, session-storage-setting logic and React would yell at us if
@@ -148,6 +160,6 @@ const CourseWrapper = (props) => {
   }
 
   return <Course {...props} windowWidth={windowWidth} />;
-};
+}
 
 export default CourseWrapper;

src/courseware/course/Course.test.jsx

@@ -1,23 +1,16 @@
 import React from 'react';
 import { Factory } from 'rosie';
-import { getConfig } from '@edx/frontend-platform';
-import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
-import MockAdapter from 'axios-mock-adapter';
 import { breakpoints } from '@edx/paragon';
 import {
-  act, fireEvent, getByRole, initializeTestStore, loadUnit, render, screen, waitFor,
+  fireEvent, getByRole, initializeTestStore, loadUnit, render, screen, waitFor,
 } from '../../setupTest';
-import { buildTopicsFromUnits } from '../data/__factories__/discussionTopics.factory';
 import { handleNextSectionCelebration } from './celebration';
 import * as celebrationUtils from './celebration/utils';
 import Course from './Course';
-import { executeThunk } from '../../utils';
-import * as thunks from '../data/thunks';
 
 jest.mock('@edx/frontend-platform/analytics');
 
 const recordFirstSectionCelebration = jest.fn();
-// eslint-disable-next-line no-import-assign
 celebrationUtils.recordFirstSectionCelebration = recordFirstSectionCelebration;
 
 describe('Course', () => {
@@ -49,28 +42,6 @@ describe('Course', () => {
     setItemSpy.mockRestore();
   });
 
-  const setupDiscussionSidebar = async (storageValue = false) => {
-    localStorage.clear();
-    const testStore = await initializeTestStore({ provider: 'openedx' });
-    const state = testStore.getState();
-    const { courseware: { courseId } } = state;
-    const axiosMock = new MockAdapter(getAuthenticatedHttpClient());
-    axiosMock.onGet(`${getConfig().LMS_BASE_URL}/api/discussion/v1/courses/${courseId}`).reply(200, { provider: 'openedx' });
-    const topicsResponse = buildTopicsFromUnits(state.models.units);
-    axiosMock.onGet(`${getConfig().LMS_BASE_URL}/api/discussion/v2/course_topics/${courseId}`)
-      .reply(200, topicsResponse);
-
-    await executeThunk(thunks.getCourseDiscussionTopics(courseId), testStore.dispatch);
-    const [firstUnitId] = Object.keys(state.models.units);
-    mockData.unitId = firstUnitId;
-    const [firstSequenceId] = Object.keys(state.models.sequences);
-    mockData.sequenceId = firstSequenceId;
-    if (storageValue !== null) {
-      localStorage.setItem('showDiscussionSidebar', storageValue);
-    }
-    await render(<Course {...mockData} />, { store: testStore });
-  };
-
   it('loads learning sequence', async () => {
     render(<Course {...mockData} />);
     expect(screen.getByRole('navigation', { name: 'breadcrumb' })).toBeInTheDocument();
@@ -131,7 +102,6 @@ describe('Course', () => {
   });
 
   it('displays notification trigger and toggles active class on click', async () => {
-    localStorage.setItem('showDiscussionSidebar', false);
     render(<Course {...mockData} />);
 
     const notificationTrigger = screen.getByRole('button', { name: /Show notification tray/i });
@@ -143,14 +113,13 @@ describe('Course', () => {
 
   it('handles click to open/close notification tray', async () => {
     sessionStorage.clear();
-    localStorage.setItem('showDiscussionSidebar', false);
     render(<Course {...mockData} />);
     expect(sessionStorage.getItem(`notificationTrayStatus.${mockData.courseId}`)).toBe('"open"');
     const notificationShowButton = await screen.findByRole('button', { name: /Show notification tray/i });
-    expect(screen.queryByRole('region', { name: /notification tray/i })).not.toHaveClass('d-none');
+    expect(screen.queryByRole('region', { name: /notification tray/i })).toBeInTheDocument();
     fireEvent.click(notificationShowButton);
     expect(sessionStorage.getItem(`notificationTrayStatus.${mockData.courseId}`)).toBe('"closed"');
-    expect(screen.queryByRole('region', { name: /notification tray/i })).toHaveClass('d-none');
+    expect(screen.queryByRole('region', { name: /notification tray/i })).not.toBeInTheDocument();
   });
 
   it('handles reload persisting notification tray status', async () => {
@@ -174,7 +143,6 @@ describe('Course', () => {
 
   it('handles sessionStorage from a different course for the notification tray', async () => {
     sessionStorage.clear();
-    localStorage.setItem('showDiscussionSidebar', false);
     const courseMetadataSecondCourse = Factory.build('courseMetadata', { id: 'second_course' });
 
     // set sessionStorage for a different course before rendering Course
@@ -217,34 +185,6 @@ describe('Course', () => {
     expect(screen.getByText(Object.values(models.sequences)[0].title)).toBeInTheDocument();
   });
 
-  [
-    { value: true, visible: true },
-    { value: false, visible: false },
-    { value: null, visible: true },
-  ].forEach(async ({ value, visible }) => (
-    it(`discussion sidebar is ${visible ? 'shown' : 'hidden'} when localstorage value is ${value}`, async () => {
-      await setupDiscussionSidebar(value);
-      const element = await waitFor(() => screen.findByTestId('sidebar-DISCUSSIONS'));
-      if (visible) {
-        expect(element).not.toHaveClass('d-none');
-      } else {
-        expect(element).toHaveClass('d-none');
-      }
-    })));
-
-  [
-    { value: true, result: 'false' },
-    { value: false, result: 'true' },
-  ].forEach(async ({ value, result }) => (
-    it(`Discussion sidebar storage value is ${!value} when sidebar is ${value ? 'closed' : 'open'}`, async () => {
-      await setupDiscussionSidebar(value);
-      await act(async () => {
-        const button = await screen.queryByRole('button', { name: /Show discussions tray/i });
-        button.click();
-      });
-      expect(localStorage.getItem('showDiscussionSidebar')).toBe(result);
-    })));
-
   it('passes handlers to the sequence', async () => {
     const nextSequenceHandler = jest.fn();
     const previousSequenceHandler = jest.fn();
@@ -284,10 +224,11 @@ describe('Course', () => {
   describe('Sequence alerts display', () => {
     it('renders banner text alert', async () => {
       const courseMetadata = Factory.build('courseMetadata');
-      const sequenceBlocks = [Factory.build('block', { type: 'sequential', banner_text: 'Some random banner text to display.' })];
+      const sequenceBlocks = [Factory.build(
+        'block', { type: 'sequential', banner_text: 'Some random banner text to display.' },
+      )];
       const sequenceMetadata = [Factory.build(
-        'sequenceMetadata',
-        { banner_text: sequenceBlocks[0].banner_text },
+        'sequenceMetadata', { banner_text: sequenceBlocks[0].banner_text },
         { courseId: courseMetadata.id, sequenceBlock: sequenceBlocks[0] },
       )];
 

src/courseware/course/CourseBreadcrumbs.jsx

@@ -8,11 +8,13 @@ import { useSelector } from 'react-redux';
 import { SelectMenu } from '@edx/paragon';
 import { Link } from 'react-router-dom';
 import { useModel, useModels } from '../../generic/model-store';
+/** [MM-P2P] Experiment */
+import { MMP2PFlyoverTrigger } from '../../experiments/mm-p2p';
 import JumpNavMenuItem from './JumpNavMenuItem';
 
-const CourseBreadcrumb = ({
+function CourseBreadcrumb({
   content, withSeparator, courseId, sequenceId, unitId, isStaff,
-}) => {
+}) {
   const defaultContent = content.filter(destination => destination.default)[0] || { id: courseId, label: '', sequences: [] };
   return (
     <>
@@ -55,7 +57,7 @@ const CourseBreadcrumb = ({
       </li>
     </>
   );
-};
+}
 CourseBreadcrumb.propTypes = {
   content: PropTypes.arrayOf(
     PropTypes.shape({
@@ -79,13 +81,15 @@ CourseBreadcrumb.defaultProps = {
   isStaff: null,
 };
 
-const CourseBreadcrumbs = ({
+export default function CourseBreadcrumbs({
   courseId,
   sectionId,
   sequenceId,
   unitId,
   isStaff,
-}) => {
+  /** [MM-P2P] Experiment */
+  mmp2p,
+}) {
   const course = useModel('coursewareMeta', courseId);
   const courseStatus = useSelector(state => state.courseware.courseStatus);
   const sequenceStatus = useSelector(state => state.courseware.sequenceStatus);
@@ -148,10 +152,14 @@ const CourseBreadcrumbs = ({
             isStaff={isStaff}
           />
         ))}
+        {/** [MM-P2P] Experiment */}
+        {mmp2p.state && mmp2p.state.isEnabled && (
+          <MMP2PFlyoverTrigger options={mmp2p} />
+        )}
       </ol>
     </nav>
   );
-};
+}
 
 CourseBreadcrumbs.propTypes = {
   courseId: PropTypes.string.isRequired,
@@ -159,6 +167,12 @@ CourseBreadcrumbs.propTypes = {
   sequenceId: PropTypes.string,
   unitId: PropTypes.string,
   isStaff: PropTypes.bool,
+  /** [MM-P2P] Experiment */
+  mmp2p: PropTypes.shape({
+    state: PropTypes.shape({
+      isEnabled: PropTypes.bool.isRequired,
+    }),
+  }),
 };
 
 CourseBreadcrumbs.defaultProps = {
@@ -166,6 +180,6 @@ CourseBreadcrumbs.defaultProps = {
   sequenceId: null,
   unitId: null,
   isStaff: null,
+  /** [MM-P2P] Experiment */
+  mmp2p: {},
 };
-
-export default CourseBreadcrumbs;

src/courseware/course/JumpNavMenuItem.jsx

@@ -8,14 +8,14 @@ import {
   sendTrackEvent,
 } from '@edx/frontend-platform/analytics';
 
-const JumpNavMenuItem = ({
+export default function JumpNavMenuItem({
   title,
   courseId,
   currentSequence,
   currentUnit,
   sequences,
   isDefault,
-}) => {
+}) {
   function logEvent(targetUrl) {
     const eventName = 'edx.ui.lms.jump_nav.selected';
     const payload = {
@@ -48,7 +48,7 @@ const JumpNavMenuItem = ({
       {title}
     </MenuItem>
   );
-};
+}
 
 const sequenceShape = PropTypes.shape({
   id: PropTypes.string.isRequired,
@@ -62,5 +62,3 @@ JumpNavMenuItem.propTypes = {
   currentSequence: PropTypes.string.isRequired,
   currentUnit: PropTypes.string.isRequired,
 };
-
-export default JumpNavMenuItem;