fix: course name was not visible in notification (#371)

* feat: integrated notifications tray with backend apis

* test: updates test cases

* refactor: loader added and resolves minor nits

* test: fixes test cases related to pagination

* refactor: moved pagination to normalised data

package.json

@@ -35,41 +35,44 @@
   "devDependencies": {
     "@edx/brand": "npm:@edx/brand-openedx@1.2.0",
     "@edx/browserslist-config": "^1.1.1",
-    "@edx/frontend-build": "12.8.51",
-    "@edx/frontend-platform": "4.5.1",
+    "@edx/frontend-build": "12.8.61",
+    "@edx/frontend-platform": "4.6.0",
     "@edx/reactifex": "^2.1.1",
-    "@testing-library/dom": "9.3.0",
+    "@testing-library/dom": "9.3.1",
     "@testing-library/jest-dom": "5.16.5",
     "@testing-library/react": "10.4.9",
+    "@wojtekmaj/enzyme-adapter-react-17": "0.8.0",
     "enzyme": "3.11.0",
-    "enzyme-adapter-react-16": "1.15.7",
     "husky": "8.0.3",
-    "jest": "29.5.0",
+    "jest": "29.6.1",
     "jest-chain": "1.1.6",
     "prop-types": "15.8.1",
-    "react": "16.14.0",
-    "react-dom": "16.14.0",
+    "react": "17.0.2",
+    "react-dom": "17.0.2",
     "react-redux": "7.2.9",
-    "react-test-renderer": "16.14.0",
+    "react-router-dom": "5.3.4",
+    "react-test-renderer": "17.0.2",
     "redux": "4.2.1",
     "redux-saga": "1.2.3"
   },
   "dependencies": {
-    "@edx/paragon": "20.44.0",
-    "@fortawesome/fontawesome-svg-core": "6.3.0",
-    "@fortawesome/free-brands-svg-icons": "6.3.0",
-    "@fortawesome/free-regular-svg-icons": "6.3.0",
-    "@fortawesome/free-solid-svg-icons": "6.3.0",
+    "@edx/paragon": "20.45.0",
+    "@fortawesome/fontawesome-svg-core": "6.4.0",
+    "@fortawesome/free-brands-svg-icons": "6.4.0",
+    "@fortawesome/free-regular-svg-icons": "6.4.0",
+    "@fortawesome/free-solid-svg-icons": "6.4.0",
     "@fortawesome/react-fontawesome": "^0.2.0",
     "@reduxjs/toolkit": "1.9.5",
+    "axios-mock-adapter": "1.21.5",
     "babel-polyfill": "6.26.0",
     "classnames": "2.3.2",
     "lodash": "4.17.21",
     "react-redux": "7.2.9",
     "react-responsive": "8.2.0",
+    "react-router-dom": "5.3.4",
     "react-transition-group": "4.4.5",
-    "timeago.js": "4.0.2",
-    "react-router-dom": "5.3.4"
+    "rosie": "2.1.0",
+    "timeago.js": "4.0.2"
   },
   "peerDependencies": {
     "@edx/frontend-platform": "^4.0.0",

src/Notifications/NotificationRowItem.jsx

@@ -29,27 +29,35 @@ const NotificationRowItem = ({
       className="d-flex mb-2 align-items-center text-decoration-none"
       to={contentUrl}
       onClick={handleMarkAsRead}
+      data-testid={`notification-${id}`}
     >
-      <Icon src={iconComponent} className={`${iconClass} mr-4 notification-icon`} />
-      <div className="d-flex w-100">
+      <Icon
+        src={iconComponent}
+        className={`${iconClass} mr-4 notification-icon`}
+        data-testid={`notification-icon-${id}`}
+      />
+      <div className="d-flex w-100" data-testid="notification-contents">
         <div className="d-flex align-items-center w-100">
           <div className="py-10px w-100 px-0 cursor-pointer">
             <span
               className="line-height-24 text-gray-700 mb-2 notification-item-content overflow-hidden content"
               // eslint-disable-next-line react/no-danger
               dangerouslySetInnerHTML={{ __html: content }}
+              data-testid={`notification-content-${id}`}
             />
             <div className="py-0 d-flex">
               <span className="font-size-12 text-gray-500 line-height-20">
-                <span>{courseName}</span>
+                <span data-testid={`notification-course-${id}`}>{courseName}
+                </span>
                 <span className="text-light-700 px-1.5">{intl.formatMessage(messages.fullStop)}</span>
-                <span>{timeago.format(createdAt, 'time-locale')}</span>
+                <span data-testid={`notification-created-date-${id}`}> {timeago.format(createdAt, 'time-locale')}
+                </span>
               </span>
             </div>
           </div>
           {!lastRead && (
             <div className="d-flex py-1.5 px-1.5 ml-2 cursor-pointer">
-              <span className="bg-brand-500 rounded unread" />
+              <span className="bg-brand-500 rounded unread" data-testid={`unread-notification-${id}`} />
             </div>
           )}
         </div>

src/Notifications/NotificationSections.jsx

@@ -1,21 +1,24 @@
 import React, { useCallback, useMemo } from 'react';
-import { Button } from '@edx/paragon';
+import { Button, Spinner } from '@edx/paragon';
 import { useDispatch, useSelector } from 'react-redux';
 import { useIntl } from '@edx/frontend-platform/i18n';
 import isEmpty from 'lodash/isEmpty';
 import messages from './messages';
 import NotificationRowItem from './NotificationRowItem';
 import { markAllNotificationsAsRead } from './data/thunks';
-import { selectNotificationsByIds, selectPaginationData, selectSelectedAppName } from './data/selectors';
+import {
+  selectNotificationsByIds, selectPaginationData, selectSelectedAppName, selectNotificationStatus,
+} from './data/selectors';
 import { splitNotificationsByTime } from './utils';
-import { updatePaginationRequest } from './data/slice';
+import { updatePaginationRequest, RequestStatus } from './data/slice';
 
 const NotificationSections = () => {
   const intl = useIntl();
   const dispatch = useDispatch();
   const selectedAppName = useSelector(selectSelectedAppName());
+  const notificationRequestStatus = useSelector(selectNotificationStatus());
   const notifications = useSelector(selectNotificationsByIds(selectedAppName));
-  const { currentPage, numPages } = useSelector(selectPaginationData());
+  const { hasMorePages } = useSelector(selectPaginationData());
   const { today = [], earlier = [] } = useMemo(
     () => splitNotificationsByTime(notifications),
     [notifications],
@@ -44,6 +47,7 @@ const NotificationSections = () => {
               variant="link"
               className="text-info-500 font-size-14 line-height-10 text-decoration-none p-0 border-0"
               onClick={handleMarkAllAsRead}
+              data-testid="mark-all-read"
             >
               {intl.formatMessage(messages.notificationMarkAsRead)}
             </Button>
@@ -56,7 +60,7 @@ const NotificationSections = () => {
             type={notification.type}
             contentUrl={notification.contentUrl}
             content={notification.content}
-            courseName={notification.courseName}
+            courseName={notification.contentContext?.courseName || ''}
             createdAt={notification.createdAt}
             lastRead={notification.lastRead}
           />
@@ -66,13 +70,24 @@ const NotificationSections = () => {
   };
 
   return (
-    <div className="mt-4 px-4">
+    <div className="mt-4 px-4" data-testid="notification-tray-section">
       {renderNotificationSection('today', today)}
       {renderNotificationSection('earlier', earlier)}
-      {currentPage < numPages && (
-        <Button variant="primary" className="w-100 bg-primary-500" onClick={updatePagination}>
-          {intl.formatMessage(messages.loadMoreNotifications)}
-        </Button>
+      {hasMorePages && notificationRequestStatus === RequestStatus.IN_PROGRESS ? (
+        <div className="d-flex justify-content-center p-4">
+          <Spinner animation="border" variant="primary" size="lg" />
+        </div>
+      ) : (hasMorePages && notificationRequestStatus === RequestStatus.SUCCESSFUL
+        && (
+          <Button
+            variant="primary"
+            className="w-100 bg-primary-500"
+            onClick={updatePagination}
+            data-testid="load-more-notifications"
+          >
+            {intl.formatMessage(messages.loadMoreNotifications)}
+          </Button>
+        )
       )}
     </div>
   );

src/Notifications/NotificationTabs.jsx

@@ -17,7 +17,7 @@ const NotificationTabs = () => {
   const { currentPage } = useSelector(selectPaginationData());
 
   useEffect(() => {
-    dispatch(fetchNotificationList({ appName: selectedAppName, page: currentPage, pageSize: 10 }));
+    dispatch(fetchNotificationList({ appName: selectedAppName, page: currentPage }));
     if (selectedAppName) { dispatch(markNotificationsAsSeen(selectedAppName)); }
   }, [currentPage, selectedAppName]);
 
@@ -32,6 +32,7 @@ const NotificationTabs = () => {
       title={appName}
       notification={notificationUnseenCounts[appName]}
       tabClassName="pt-0 pb-10px px-2.5 d-flex border-top-0 mb-0 align-items-center line-height-24 text-capitalize"
+      data-testid={`notification-tab-${appName}`}
     >
       {appName === selectedAppName && (<NotificationSections />)}
     </Tab>

src/Notifications/data/__factories__/index.js

@@ -0,0 +1 @@
+import './notifications.factory';

src/Notifications/data/__factories__/notifications.factory.js

@@ -0,0 +1,31 @@
+import { Factory } from 'rosie';
+
+Factory.define('notificationsCount')
+  .attr('count', 45)
+  .attr('countByAppName', {
+    reminders: 10,
+    discussion: 20,
+    grades: 10,
+    authoring: 5,
+  })
+  .attr('showNotificationsTray', true);
+
+Factory.define('notification')
+  .sequence('id')
+  .attr('type', 'post')
+  .sequence('content', ['id'], (idx, notificationId) => `<p><strong>User ${idx}</strong> posts <strong>Hello and welcome to SC0x
+  ${notificationId}!</strong></p>`)
+  .attr('course_name', 'Supply Chain Analytics')
+  .sequence('content_url', (idx) => `https://example.com/${idx}`)
+  .attr('last_read', null)
+  .attr('last_seen', null)
+  .sequence('created_at', ['createdDate'], (idx, date) => date);
+
+Factory.define('notificationsList')
+  .attr('next', null)
+  .attr('previous', null)
+  .attr('count', null, 2)
+  .attr('num_pages', null, 1)
+  .attr('current_page', null, 1)
+  .attr('start', null, 0)
+  .attr('results', ['results'], (results) => results || Factory.buildList('notification', 2, null, { createdDate: new Date().toISOString() }));

src/Notifications/data/api.js

@@ -1,40 +1,39 @@
-import { camelCaseObject } from '@edx/frontend-platform';
-import notificationsList from './notifications.json';
+import { getConfig, snakeCaseObject } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 
-export async function getNotifications(appName, page, pageSize) {
-  const { data } = notificationsList;
-  const startIndex = (page - 1) * pageSize;
-  const endIndex = startIndex + pageSize;
+export const getNotificationsCountApiUrl = () => `${getConfig().LMS_BASE_URL}/api/notifications/count/`;
+export const getNotificationsListApiUrl = () => `${getConfig().LMS_BASE_URL}/api/notifications/`;
+export const markNotificationsSeenApiUrl = (appName) => `${getConfig().LMS_BASE_URL}/api/notifications/mark-seen/${appName}/`;
+export const markNotificationAsReadApiUrl = () => `${getConfig().LMS_BASE_URL}/api/notifications/read/`;
 
-  const notifications = data.slice(startIndex, endIndex);
-  return { notifications: camelCaseObject(notifications), numPages: 2, currentPage: page };
+export async function getNotificationsList(appName, page) {
+  const params = snakeCaseObject({ appName, page });
+  const { data } = await getAuthenticatedHttpClient().get(getNotificationsListApiUrl(), { params });
+  return data;
 }
 
 export async function getNotificationCounts() {
-  const data = {
-    count: 45,
-    count_by_app_name: {
-      reminders: 10,
-      discussions: 20,
-      grades: 10,
-      authoring: 5,
-    },
-    show_notification_tray: false,
-  };
-  return camelCaseObject(data);
+  const { data } = await getAuthenticatedHttpClient().get(getNotificationsCountApiUrl());
+
+  return data;
 }
 
-export async function markNotificationSeen() {
-  const data = [];
-  return camelCaseObject(data);
+export async function markNotificationSeen(appName) {
+  const { data } = await getAuthenticatedHttpClient().put(`${markNotificationsSeenApiUrl(appName)}`);
+
+  return data;
 }
 
-export async function markAllNotificationRead() {
-  const { data } = camelCaseObject(notificationsList);
+export async function markAllNotificationRead(appName) {
+  const params = snakeCaseObject({ appName });
+  const { data } = await getAuthenticatedHttpClient().patch(markNotificationAsReadApiUrl(), params);
+
   return data;
 }
 
 export async function markNotificationRead(notificationId) {
-  const { data } = camelCaseObject(notificationsList);
+  const params = snakeCaseObject({ notificationId });
+  const { data } = await getAuthenticatedHttpClient().patch(markNotificationAsReadApiUrl(), params);
+
   return { data, id: notificationId };
 }

src/Notifications/data/api.test.js

@@ -0,0 +1,147 @@
+import MockAdapter from 'axios-mock-adapter';
+import { Factory } from 'rosie';
+
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { initializeMockApp } from '@edx/frontend-platform/testing';
+
+import {
+  getNotificationsListApiUrl, getNotificationsCountApiUrl, markNotificationAsReadApiUrl, markNotificationsSeenApiUrl,
+  getNotificationCounts, getNotificationsList, markNotificationSeen, markAllNotificationRead, markNotificationRead,
+} from './api';
+
+import './__factories__';
+
+const notificationCountsApiUrl = getNotificationsCountApiUrl();
+const notificationsApiUrl = getNotificationsListApiUrl();
+const markedAllNotificationsAsSeenApiUrl = markNotificationsSeenApiUrl('discussion');
+const markedAllNotificationsAsReadApiUrl = markNotificationAsReadApiUrl();
+
+let axiosMock = null;
+
+describe('Notifications API', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: '123abc',
+        username: 'testuser',
+        administrator: false,
+        roles: [],
+      },
+    });
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    Factory.resetAll();
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  it('Successfully get notification counts for different tabs.', async () => {
+    axiosMock.onGet(notificationCountsApiUrl).reply(200, (Factory.build('notificationsCount')));
+
+    const { count, countByAppName } = await getNotificationCounts();
+
+    expect(count).toEqual(45);
+    expect(countByAppName.reminders).toEqual(10);
+    expect(countByAppName.discussion).toEqual(20);
+    expect(countByAppName.grades).toEqual(10);
+    expect(countByAppName.authoring).toEqual(5);
+  });
+
+  it.each([
+    { statusCode: 404, message: 'Failed to get notification counts.' },
+    { statusCode: 403, message: 'Denied to get notification counts.' },
+  ])('%s for notification counts API.', async ({ statusCode, message }) => {
+    axiosMock.onGet(notificationCountsApiUrl).reply(statusCode, { message });
+    try {
+      await getNotificationCounts();
+    } catch (error) {
+      expect(error.response.status).toEqual(statusCode);
+      expect(error.response.data.message).toEqual(message);
+    }
+  });
+
+  it('Successfully get notifications.', async () => {
+    axiosMock.onGet(notificationsApiUrl).reply(200, (Factory.build('notificationsList')));
+
+    const notifications = await getNotificationsList('discussion', 1);
+
+    expect(notifications.results).toHaveLength(2);
+  });
+
+  it.each([
+    { statusCode: 404, message: 'Failed to get notifications.' },
+    { statusCode: 403, message: 'Denied to get notifications.' },
+  ])('%s for notification API.', async ({ statusCode, message }) => {
+    axiosMock.onGet(notificationsApiUrl).reply(statusCode, { message });
+    try {
+      await getNotificationsList('discussion', 1);
+    } catch (error) {
+      expect(error.response.status).toEqual(statusCode);
+      expect(error.response.data.message).toEqual(message);
+    }
+  });
+
+  it('Successfully marked all notifications as seen for selected app.', async () => {
+    axiosMock.onPut(markedAllNotificationsAsSeenApiUrl).reply(200, { message: 'Notifications marked seen.' });
+
+    const { message } = await markNotificationSeen('discussion');
+
+    expect(message).toEqual('Notifications marked seen.');
+  });
+
+  it.each([
+    { statusCode: 404, message: 'Failed to mark all notifications as seen for selected app.' },
+    { statusCode: 403, message: 'Denied to mark all notifications as seen for selected app.' },
+  ])('%s for notification mark as seen API.', async ({ statusCode, message }) => {
+    axiosMock.onPut(markedAllNotificationsAsSeenApiUrl).reply(statusCode, { message });
+    try {
+      await markNotificationSeen('discussion');
+    } catch (error) {
+      expect(error.response.status).toEqual(statusCode);
+      expect(error.response.data.message).toEqual(message);
+    }
+  });
+
+  it('Successfully marked all notifications as read for selected app.', async () => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(200, { message: 'Notifications marked read.' });
+
+    const { message } = await markAllNotificationRead('discussion');
+
+    expect(message).toEqual('Notifications marked read.');
+  });
+
+  it.each([
+    { statusCode: 404, message: 'Failed to mark all notifications as read for selected app.' },
+    { statusCode: 403, message: 'Denied to mark all notifications as read for selected app.' },
+  ])('%s for notification mark all as read API.', async ({ statusCode, message }) => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(statusCode, { message });
+    try {
+      await markAllNotificationRead('discussion');
+    } catch (error) {
+      expect(error.response.status).toEqual(statusCode);
+      expect(error.response.data.message).toEqual(message);
+    }
+  });
+
+  it('Successfully marked notification as read.', async () => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(200, { message: 'Notification marked read.' });
+
+    const { data } = await markNotificationRead(1);
+
+    expect(data.message).toEqual('Notification marked read.');
+  });
+
+  it.each([
+    { statusCode: 404, message: 'Failed to mark notification as read.' },
+    { statusCode: 403, message: 'Denied to mark notification as read.' },
+  ])('%s for notification mark as read API.', async ({ statusCode, message }) => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(statusCode, { message });
+    try {
+      await markAllNotificationRead(1);
+    } catch (error) {
+      expect(error.response.status).toEqual(statusCode);
+      expect(error.response.data.message).toEqual(message);
+    }
+  });
+});

src/Notifications/data/redux.test.js

@@ -0,0 +1,155 @@
+import MockAdapter from 'axios-mock-adapter';
+import { Factory } from 'rosie';
+
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { initializeMockApp } from '@edx/frontend-platform/testing';
+
+import { initializeStore } from '../../store';
+import executeThunk from '../../test-utils';
+import mockNotificationsResponse from '../test-utils';
+import {
+  getNotificationsListApiUrl, getNotificationsCountApiUrl, markNotificationAsReadApiUrl, markNotificationsSeenApiUrl,
+} from './api';
+import {
+  fetchAppsNotificationCount, fetchNotificationList, markNotificationsAsRead, markAllNotificationsAsRead,
+  resetNotificationState, markNotificationsAsSeen,
+} from './thunks';
+
+import './__factories__';
+
+const notificationCountsApiUrl = getNotificationsCountApiUrl();
+const notificationsListApiUrl = getNotificationsListApiUrl();
+const markedAllNotificationsAsReadApiUrl = markNotificationAsReadApiUrl();
+const markedAllNotificationsAsSeenApiUrl = markNotificationsSeenApiUrl('discussion');
+
+let axiosMock;
+let store;
+
+describe('Notification Redux', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: '123abc',
+        username: 'testuser',
+        administrator: false,
+        roles: [],
+      },
+    });
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    Factory.resetAll();
+    store = initializeStore();
+
+    ({ store, axiosMock } = await mockNotificationsResponse());
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  it('Successfully loaded initial notification states in the redux.', async () => {
+    executeThunk(resetNotificationState(), store.dispatch, store.getState);
+
+    const { notifications } = store.getState();
+
+    expect(notifications.notificationStatus).toEqual('idle');
+    expect(notifications.appName).toEqual('discussion');
+    expect(notifications.appsId).toHaveLength(0);
+    expect(notifications.apps).toEqual({});
+    expect(notifications.notifications).toEqual({});
+    expect(notifications.tabsCount).toEqual({});
+    expect(notifications.showNotificationsTray).toEqual(false);
+    expect(notifications.pagination).toEqual({});
+  });
+
+  it('Successfully loaded notifications list in the redux.', async () => {
+    const { notifications: { notifications } } = store.getState();
+    expect(Object.keys(notifications)).toHaveLength(10);
+  });
+
+  it.each([
+    { statusCode: 404, status: 'failed' },
+    { statusCode: 403, status: 'denied' },
+  ])('%s to load notifications list in the redux.', async ({ statusCode, status }) => {
+    axiosMock.onGet(notificationsListApiUrl).reply(statusCode);
+    await executeThunk(fetchNotificationList({ page: 1 }), store.dispatch, store.getState);
+
+    const { notifications: { notificationStatus } } = store.getState();
+
+    expect(notificationStatus).toEqual(status);
+  });
+
+  it('Successfully loaded notification counts in the redux.', async () => {
+    const { notifications: { tabsCount } } = store.getState();
+
+    expect(tabsCount.count).toEqual(25);
+    expect(tabsCount.reminders).toEqual(10);
+    expect(tabsCount.discussion).toEqual(0);
+    expect(tabsCount.grades).toEqual(10);
+    expect(tabsCount.authoring).toEqual(5);
+  });
+
+  it.each([
+    { statusCode: 404, status: 'failed' },
+    { statusCode: 403, status: 'denied' },
+  ])('%s to load notification counts in the redux.', async ({ statusCode, status }) => {
+    axiosMock.onGet(notificationCountsApiUrl).reply(statusCode);
+    await executeThunk(fetchAppsNotificationCount(), store.dispatch, store.getState);
+
+    const { notifications: { notificationStatus } } = store.getState();
+
+    expect(notificationStatus).toEqual(status);
+  });
+
+  it('Successfully marked all notifications as seen for selected app.', async () => {
+    axiosMock.onPut(markedAllNotificationsAsSeenApiUrl).reply(200);
+    await executeThunk(markNotificationsAsSeen('discussion'), store.dispatch, store.getState);
+
+    expect(store.getState().notifications.notificationStatus).toEqual('successful');
+  });
+
+  it.each([
+    { statusCode: 404, status: 'failed' },
+    { statusCode: 403, status: 'denied' },
+  ])('%s to mark all notifications as seen for selected app.', async ({ statusCode, status }) => {
+    axiosMock.onPut(markedAllNotificationsAsSeenApiUrl).reply(statusCode);
+    await executeThunk(markNotificationsAsSeen('discussion'), store.dispatch, store.getState);
+
+    const { notifications: { notificationStatus } } = store.getState();
+
+    expect(notificationStatus).toEqual(status);
+  });
+
+  it('Successfully marked all notifications as read for selected app in the redux.', async () => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(200);
+    await executeThunk(markAllNotificationsAsRead('discussion'), store.dispatch, store.getState);
+
+    const { notifications: { notificationStatus, notifications } } = store.getState();
+    const firstNotification = Object.values(notifications)[0];
+
+    expect(notificationStatus).toEqual('successful');
+    expect(firstNotification.lastRead).not.toBeNull();
+  });
+
+  it('Successfully marked notification as read in the redux.', async () => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(200);
+    await executeThunk(markNotificationsAsRead(1), store.dispatch, store.getState);
+
+    const { notifications: { notificationStatus, notifications } } = store.getState();
+    const firstNotification = Object.values(notifications)[0];
+
+    expect(notificationStatus).toEqual('successful');
+    expect(firstNotification.lastRead).not.toBeNull();
+  });
+
+  it.each([
+    { statusCode: 404, status: 'failed' },
+    { statusCode: 403, status: 'denied' },
+  ])('%s to marked notification as read in the redux.', async ({ statusCode, status }) => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(statusCode);
+    await executeThunk(markNotificationsAsRead(1), store.dispatch, store.getState);
+
+    const { notifications: { notificationStatus } } = store.getState();
+
+    expect(notificationStatus).toEqual(status);
+  });
+});

src/Notifications/data/selector.test.jsx

@@ -0,0 +1,115 @@
+import MockAdapter from 'axios-mock-adapter';
+import { Factory } from 'rosie';
+
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { initializeMockApp } from '@edx/frontend-platform/testing';
+
+import { initializeStore } from '../../store';
+import mockNotificationsResponse from '../test-utils';
+import {
+  selectNotifications,
+  selectNotificationsByIds,
+  selectNotificationStatus,
+  selectNotificationTabs,
+  selectNotificationTabsCount,
+  selectPaginationData,
+  selectSelectedAppName,
+  selectSelectedAppNotificationIds,
+  selectShowNotificationTray,
+} from './selectors';
+
+import './__factories__';
+
+let axiosMock;
+let store;
+
+describe('Notification Selectors', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: '123abc',
+        username: 'testuser',
+        administrator: false,
+        roles: [],
+      },
+    });
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    Factory.resetAll();
+    store = initializeStore();
+
+    ({ store, axiosMock } = await mockNotificationsResponse());
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  it('Should return notification status.', async () => {
+    const state = store.getState();
+    const status = selectNotificationStatus()(state);
+
+    expect(status).toEqual('successful');
+  });
+
+  it('Should return notification tabs count.', async () => {
+    const state = store.getState();
+    const tabsCount = selectNotificationTabsCount()(state);
+
+    expect(tabsCount.count).toEqual(25);
+    expect(tabsCount.reminders).toEqual(10);
+    expect(tabsCount.discussion).toEqual(0);
+    expect(tabsCount.grades).toEqual(10);
+    expect(tabsCount.authoring).toEqual(5);
+  });
+
+  it('Should return notification tabs.', async () => {
+    const state = store.getState();
+    const tabs = selectNotificationTabs()(state);
+
+    expect(tabs).toHaveLength(4);
+  });
+
+  it('Should return selected app notification ids.', async () => {
+    const state = store.getState();
+    const notificationIds = selectSelectedAppNotificationIds('discussion')(state);
+
+    expect(notificationIds).toHaveLength(10);
+  });
+
+  it('Should return show notification tray status.', async () => {
+    const state = store.getState();
+    const showNotificationTrayStatus = selectShowNotificationTray()(state);
+
+    expect(showNotificationTrayStatus).toEqual(true);
+  });
+
+  it('Should return notifications.', async () => {
+    const state = store.getState();
+    const notifications = selectNotifications()(state);
+
+    expect(Object.keys(notifications)).toHaveLength(10);
+  });
+
+  it('Should return notifications from Ids.', async () => {
+    const state = store.getState();
+    const notifications = selectNotificationsByIds('discussion')(state);
+
+    expect(notifications).toHaveLength(10);
+  });
+
+  it('Should return selected app name.', async () => {
+    const state = store.getState();
+    const appName = selectSelectedAppName()(state);
+
+    expect(appName).toEqual('discussion');
+  });
+
+  it('Should return pagination data.', async () => {
+    const state = store.getState();
+    const paginationData = selectPaginationData()(state);
+
+    expect(paginationData.currentPage).toEqual(1);
+    expect(paginationData.numPages).toEqual(2);
+    expect(paginationData.hasMorePages).toEqual(true);
+  });
+});

src/Notifications/data/selectors.js

@@ -8,7 +8,7 @@ export const selectNotificationTabs = () => state => state.notifications.appsId;
 
 export const selectSelectedAppNotificationIds = (appName) => state => state.notifications.apps[appName] ?? [];
 
-export const selectShowNotificationTray = () => state => state.notifications.showNotificationTray;
+export const selectShowNotificationTray = () => state => state.notifications.showNotificationsTray;
 
 export const selectNotifications = () => state => state.notifications.notifications;
 

src/Notifications/data/slice.js

@@ -3,26 +3,21 @@ import { createSlice } from '@reduxjs/toolkit';
 
 export const RequestStatus = {
   IDLE: 'idle',
-  LOADING: 'in-progress',
-  LOADED: 'successful',
+  IN_PROGRESS: 'in-progress',
+  SUCCESSFUL: 'successful',
   FAILED: 'failed',
   DENIED: 'denied',
 };
 
 const initialState = {
-  notificationStatus: 'idle',
-  appName: 'discussions',
+  notificationStatus: RequestStatus.IDLE,
+  appName: 'discussion',
   appsId: [],
   apps: {},
   notifications: {},
   tabsCount: {},
-  showNotificationTray: false,
-  pagination: {
-    count: 10,
-    numPages: 1,
-    currentPage: 1,
-    nextPage: null,
-  },
+  showNotificationsTray: false,
+  pagination: {},
 };
 const slice = createSlice({
   name: 'notifications',
@@ -35,21 +30,19 @@ const slice = createSlice({
       state.notificationStatus = RequestStatus.FAILED;
     },
     fetchNotificationRequest: (state) => {
-      state.notificationStatus = RequestStatus.LOADING;
+      state.notificationStatus = RequestStatus.IN_PROGRESS;
     },
     fetchNotificationSuccess: (state, { payload }) => {
       const {
-        newNotificationIds, notificationsKeyValuePair, numPages, currentPage,
+        newNotificationIds, notificationsKeyValuePair, pagination,
       } = payload;
       const existingNotificationIds = state.apps[state.appName];
-
       state.apps[state.appName] = Array.from(new Set([...existingNotificationIds, ...newNotificationIds]));
       state.notifications = { ...state.notifications, ...notificationsKeyValuePair };
       state.tabsCount.count -= state.tabsCount[state.appName];
       state.tabsCount[state.appName] = 0;
-      state.notificationStatus = RequestStatus.LOADED;
-      state.pagination.numPages = numPages;
-      state.pagination.currentPage = currentPage;
+      state.notificationStatus = RequestStatus.SUCCESSFUL;
+      state.pagination = pagination;
     },
     fetchNotificationsCountDenied: (state) => {
       state.notificationStatus = RequestStatus.DENIED;
@@ -58,23 +51,23 @@ const slice = createSlice({
       state.notificationStatus = RequestStatus.FAILED;
     },
     fetchNotificationsCountRequest: (state) => {
-      state.notificationStatus = RequestStatus.LOADING;
+      state.notificationStatus = RequestStatus.IN_PROGRESS;
     },
     fetchNotificationsCountSuccess: (state, { payload }) => {
       const {
-        countByAppName, appIds, apps, count, showNotificationTray,
+        countByAppName, appIds, apps, count, showNotificationsTray,
       } = payload;
       state.tabsCount = { count, ...countByAppName };
       state.appsId = appIds;
       state.apps = apps;
-      state.showNotificationTray = showNotificationTray;
-      state.notificationStatus = RequestStatus.LOADED;
+      state.showNotificationsTray = showNotificationsTray;
+      state.notificationStatus = RequestStatus.SUCCESSFUL;
     },
     markNotificationsAsSeenRequest: (state) => {
-      state.notificationStatus = RequestStatus.LOADING;
+      state.notificationStatus = RequestStatus.IN_PROGRESS;
     },
     markNotificationsAsSeenSuccess: (state) => {
-      state.notificationStatus = RequestStatus.LOADED;
+      state.notificationStatus = RequestStatus.SUCCESSFUL;
     },
     markNotificationsAsSeenDenied: (state) => {
       state.notificationStatus = RequestStatus.DENIED;
@@ -83,7 +76,7 @@ const slice = createSlice({
       state.notificationStatus = RequestStatus.FAILED;
     },
     markAllNotificationsAsReadRequest: (state) => {
-      state.notificationStatus = RequestStatus.LOADING;
+      state.notificationStatus = RequestStatus.IN_PROGRESS;
     },
     markAllNotificationsAsReadSuccess: (state) => {
       const updatedNotifications = Object.fromEntries(
@@ -92,7 +85,7 @@ const slice = createSlice({
         ]),
       );
       state.notifications = updatedNotifications;
-      state.notificationStatus = RequestStatus.LOADED;
+      state.notificationStatus = RequestStatus.SUCCESSFUL;
     },
     markAllNotificationsAsReadDenied: (state) => {
       state.notificationStatus = RequestStatus.DENIED;
@@ -101,12 +94,12 @@ const slice = createSlice({
       state.notificationStatus = RequestStatus.FAILED;
     },
     markNotificationsAsReadRequest: (state) => {
-      state.notificationStatus = RequestStatus.LOADING;
+      state.notificationStatus = RequestStatus.IN_PROGRESS;
     },
     markNotificationsAsReadSuccess: (state, { payload }) => {
       const date = new Date().toISOString();
       state.notifications[payload.id] = { ...state.notifications[payload.id], lastRead: date };
-      state.notificationStatus = RequestStatus.LOADED;
+      state.notificationStatus = RequestStatus.SUCCESSFUL;
     },
     markNotificationsAsReadDenied: (state) => {
       state.notificationStatus = RequestStatus.DENIED;

src/Notifications/data/thunks.js

@@ -1,3 +1,4 @@
+import { camelCaseObject } from '@edx/frontend-platform';
 import {
   fetchNotificationSuccess,
   fetchNotificationRequest,
@@ -22,33 +23,38 @@ import {
   markNotificationsAsReadFailure,
 } from './slice';
 import {
-  getNotifications, getNotificationCounts, markNotificationSeen, markAllNotificationRead, markNotificationRead,
+  getNotificationsList, getNotificationCounts, markNotificationSeen, markAllNotificationRead, markNotificationRead,
 } from './api';
 import { getHttpErrorStatus } from '../utils';
 
-const normalizeNotificationCounts = ({ countByAppName, count, showNotificationTray }) => {
+const normalizeNotificationCounts = ({ countByAppName, count, showNotificationsTray }) => {
   const appIds = Object.keys(countByAppName);
   const apps = appIds.reduce((acc, appId) => { acc[appId] = []; return acc; }, {});
   return {
-    countByAppName, appIds, apps, count, showNotificationTray,
+    countByAppName, appIds, apps, count, showNotificationsTray,
   };
 };
 
-const normalizeNotifications = ({ notifications }) => {
-  const newNotificationIds = notifications.map(notification => notification.id.toString());
-  const notificationsKeyValuePair = notifications.reduce((acc, obj) => { acc[obj.id] = obj; return acc; }, {});
+const normalizeNotifications = (data) => {
+  const newNotificationIds = data.results.map(notification => notification.id.toString());
+  const notificationsKeyValuePair = data.results.reduce((acc, obj) => { acc[obj.id] = obj; return acc; }, {});
+  const pagination = {
+    numPages: data.numPages,
+    currentPage: data.currentPage,
+    hasMorePages: !!data.next,
+  };
   return {
-    newNotificationIds, notificationsKeyValuePair,
+    newNotificationIds, notificationsKeyValuePair, pagination,
   };
 };
 
-export const fetchNotificationList = ({ appName, page, pageSize }) => (
+export const fetchNotificationList = ({ appName, page }) => (
   async (dispatch) => {
     try {
       dispatch(fetchNotificationRequest({ appName }));
-      const data = await getNotifications(appName, page, pageSize);
-      const normalisedData = normalizeNotifications((data));
-      dispatch(fetchNotificationSuccess({ ...normalisedData, numPages: data.numPages, currentPage: data.currentPage }));
+      const data = await getNotificationsList(appName, page);
+      const normalisedData = normalizeNotifications((camelCaseObject(data)));
+      dispatch(fetchNotificationSuccess({ ...normalisedData }));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(fetchNotificationDenied(appName));
@@ -64,13 +70,8 @@ export const fetchAppsNotificationCount = () => (
     try {
       dispatch(fetchNotificationsCountRequest());
       const data = await getNotificationCounts();
-      const normalisedData = normalizeNotificationCounts((data));
-      dispatch(fetchNotificationsCountSuccess({
-        ...normalisedData,
-        countByAppName: data.countByAppName,
-        count: data.count,
-        showNotificationTray: data.showNotificationTray,
-      }));
+      const normalisedData = normalizeNotificationCounts((camelCaseObject(data)));
+      dispatch(fetchNotificationsCountSuccess({ ...normalisedData }));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(fetchNotificationsCountDenied());
@@ -86,7 +87,7 @@ export const markAllNotificationsAsRead = (appName) => (
     try {
       dispatch(markAllNotificationsAsReadRequest({ appName }));
       const data = await markAllNotificationRead(appName);
-      dispatch(markAllNotificationsAsReadSuccess(data));
+      dispatch(markAllNotificationsAsReadSuccess(camelCaseObject(data)));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(markAllNotificationsAsReadDenied());
@@ -102,7 +103,7 @@ export const markNotificationsAsRead = (notificationId) => (
     try {
       dispatch(markNotificationsAsReadRequest({ notificationId }));
       const data = await markNotificationRead(notificationId);
-      dispatch(markNotificationsAsReadSuccess(data));
+      dispatch(markNotificationsAsReadSuccess(camelCaseObject(data)));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(markNotificationsAsReadDenied());
@@ -118,7 +119,7 @@ export const markNotificationsAsSeen = (appName) => (
     try {
       dispatch(markNotificationsAsSeenRequest({ appName }));
       const data = await markNotificationSeen(appName);
-      dispatch(markNotificationsAsSeenSuccess(data));
+      dispatch(markNotificationsAsSeenSuccess(camelCaseObject(data)));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(markNotificationsAsSeenDenied());

src/Notifications/index.jsx

@@ -54,7 +54,7 @@ const Notifications = () => {
       overlay={(
         <Popover
           id="notificationTray"
-          data-testid="notificationTray"
+          data-testid="notification-tray"
           className={classNames('overflow-auto rounded-0 border-0', {
             'w-100': !isOnMediumScreen && !isOnLargeScreen,
             'medium-screen': isOnMediumScreen,
@@ -64,7 +64,7 @@ const Notifications = () => {
           <div ref={popoverRef}>
             <Popover.Title as="h2" className="d-flex justify-content-between p-0 m-4 border-0 text-primary-500 font-size-18 line-height-24">
               {intl.formatMessage(messages.notificationTitle)}
-              <Icon src={Settings} className="icon-size-20" />
+              <Icon src={Settings} className="icon-size-20" data-testid="setting-icon" />
             </Popover.Title>
             <Popover.Content className="notification-content p-0">
               <NotificationTabs />
@@ -83,12 +83,14 @@ const Notifications = () => {
           variant="light"
           iconClassNames="text-primary-500"
           className="ml-4 mr-1 my-3 notification-button"
+          data-testid="notification-bell-icon"
         />
         {notificationCounts?.count > 0 && (
           <Badge
             pill
             variant="danger"
             className="font-weight-normal px-1 notification-badge"
+            data-testid="notification-count"
           >
             {notificationCounts.count}
           </Badge>

src/Notifications/index.test.jsx

@@ -0,0 +1,109 @@
+import React from 'react';
+
+import {
+  act, fireEvent, render, screen, waitFor,
+} from '@testing-library/react';
+import MockAdapter from 'axios-mock-adapter';
+import { Context as ResponsiveContext } from 'react-responsive';
+import { Factory } from 'rosie';
+
+import { initializeMockApp } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { IntlProvider } from '@edx/frontend-platform/i18n';
+import { AppContext, AppProvider } from '@edx/frontend-platform/react';
+
+import AuthenticatedUserDropdown from '../learning-header/AuthenticatedUserDropdown';
+import { initializeStore } from '../store';
+import executeThunk from '../test-utils';
+import { getNotificationsCountApiUrl } from './data/api';
+import { fetchAppsNotificationCount } from './data/thunks';
+
+import './data/__factories__';
+
+const notificationCountsApiUrl = getNotificationsCountApiUrl();
+
+let axiosMock;
+let store;
+
+function renderComponent() {
+  render(
+    <ResponsiveContext.Provider>
+      <IntlProvider locale="en" messages={{}}>
+        <AppProvider store={store}>
+          <AppContext.Provider>
+            <AuthenticatedUserDropdown />
+          </AppContext.Provider>
+        </AppProvider>
+      </IntlProvider>
+    </ResponsiveContext.Provider>,
+  );
+}
+
+describe('Notification test cases.', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: '123abc',
+        username: 'testuser',
+        administrator: false,
+        roles: [],
+      },
+    });
+
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    Factory.resetAll();
+    store = initializeStore();
+  });
+
+  async function setupMockNotificationCountResponse(count = 45, showNotificationsTray = true) {
+    axiosMock.onGet(notificationCountsApiUrl)
+      .reply(200, (Factory.build('notificationsCount', { count, showNotificationsTray })));
+    await executeThunk(fetchAppsNotificationCount(), store.dispatch, store.getState);
+  }
+
+  it('Successfully showed bell icon and unseen count on it if unseen count is greater then 0.', async () => {
+    await setupMockNotificationCountResponse();
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    const notificationCount = screen.queryByTestId('notification-count');
+
+    expect(bellIcon).toBeInTheDocument();
+    expect(notificationCount).toBeInTheDocument();
+    expect(screen.queryByText(45)).toBeInTheDocument();
+  });
+
+  it('Successfully showed bell icon and hide unseen count tag when unseen count is zero.', async () => {
+    await setupMockNotificationCountResponse(0);
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    const notificationCount = screen.queryByTestId('notification-count');
+
+    expect(bellIcon).toBeInTheDocument();
+    expect(notificationCount).not.toBeInTheDocument();
+  });
+
+  it('Successfully hides bell icon when showNotificationsTray is false.', async () => {
+    await setupMockNotificationCountResponse(45, false);
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+
+    expect(bellIcon).not.toBeInTheDocument();
+  });
+
+  it('Successfully viewed setting icon and show/hide notification tray by clicking on the bell icon .', async () => {
+    await setupMockNotificationCountResponse();
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+
+    await act(async () => { fireEvent.click(bellIcon); });
+    expect(screen.queryByTestId('notification-tray')).toBeInTheDocument();
+    expect(screen.queryByTestId('setting-icon')).toBeInTheDocument();
+
+    await act(async () => { fireEvent.click(bellIcon); });
+    await waitFor(() => expect(screen.queryByTestId('notification-tray')).not.toBeInTheDocument());
+  });
+});

src/Notifications/notificationRowItem.test.jsx

@@ -0,0 +1,87 @@
+import React from 'react';
+
+import {
+  act, fireEvent, render, screen,
+} from '@testing-library/react';
+import MockAdapter from 'axios-mock-adapter';
+import { Context as ResponsiveContext } from 'react-responsive';
+import { Factory } from 'rosie';
+
+import { initializeMockApp } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { IntlProvider } from '@edx/frontend-platform/i18n';
+import { AppContext, AppProvider } from '@edx/frontend-platform/react';
+
+import AuthenticatedUserDropdown from '../learning-header/AuthenticatedUserDropdown';
+import { initializeStore } from '../store';
+import { markNotificationAsReadApiUrl } from './data/api';
+import mockNotificationsResponse from './test-utils';
+
+import './data/__factories__';
+
+const markedNotificationAsReadApiUrl = markNotificationAsReadApiUrl();
+
+let axiosMock;
+let store;
+
+function renderComponent() {
+  render(
+    <ResponsiveContext.Provider>
+      <IntlProvider locale="en" messages={{}}>
+        <AppProvider store={store}>
+          <AppContext.Provider>
+            <AuthenticatedUserDropdown />
+          </AppContext.Provider>
+        </AppProvider>
+      </IntlProvider>
+    </ResponsiveContext.Provider>,
+  );
+}
+
+describe('Notification row item test cases.', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    Factory.resetAll();
+    store = initializeStore();
+
+    ({ store, axiosMock } = await mockNotificationsResponse());
+  });
+
+  it(
+    'Successfully viewed notification icon, notification context, unread , course name and notification time.',
+    async () => {
+      renderComponent();
+
+      const bellIcon = screen.queryByTestId('notification-bell-icon');
+      await act(async () => { fireEvent.click(bellIcon); });
+
+      expect(screen.queryByTestId('notification-icon-1')).toBeInTheDocument();
+      expect(screen.queryByTestId('notification-content-1')).toBeInTheDocument();
+      expect(screen.queryByTestId('notification-course-1')).toBeInTheDocument();
+      expect(screen.queryByTestId('notification-created-date-1')).toBeInTheDocument();
+      expect(screen.queryByTestId('unread-notification-1')).toBeInTheDocument();
+    },
+  );
+
+  it('Successfully marked notification as read.', async () => {
+    axiosMock.onPatch(markedNotificationAsReadApiUrl).reply(200, { message: 'Notification marked read.' });
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+
+    const notification = screen.queryByTestId('notification-1');
+    await act(async () => { fireEvent.click(notification); });
+
+    expect(screen.queryByTestId('unread-notification-1')).not.toBeInTheDocument();
+  });
+});

src/Notifications/notificationSections.test.jsx

@@ -0,0 +1,106 @@
+import React from 'react';
+
+import {
+  act, fireEvent, render, screen, within,
+} from '@testing-library/react';
+import MockAdapter from 'axios-mock-adapter';
+import { Context as ResponsiveContext } from 'react-responsive';
+import { Factory } from 'rosie';
+
+import { initializeMockApp } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { IntlProvider } from '@edx/frontend-platform/i18n';
+import { AppContext, AppProvider } from '@edx/frontend-platform/react';
+
+import AuthenticatedUserDropdown from '../learning-header/AuthenticatedUserDropdown';
+import { initializeStore } from '../store';
+import { markNotificationAsReadApiUrl, markNotificationsSeenApiUrl, getNotificationsListApiUrl } from './data/api';
+import mockNotificationsResponse from './test-utils';
+import { markNotificationsAsSeen, fetchNotificationList } from './data/thunks';
+import executeThunk from '../test-utils';
+import './data/__factories__';
+
+const markedAllNotificationsAsReadApiUrl = markNotificationAsReadApiUrl();
+
+let axiosMock;
+let store;
+
+function renderComponent() {
+  render(
+    <ResponsiveContext.Provider>
+      <IntlProvider locale="en" messages={{}}>
+        <AppProvider store={store}>
+          <AppContext.Provider>
+            <AuthenticatedUserDropdown />
+          </AppContext.Provider>
+        </AppProvider>
+      </IntlProvider>
+    </ResponsiveContext.Provider>,
+  );
+}
+
+describe('Notification sections test cases.', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    Factory.resetAll();
+    store = initializeStore();
+
+    ({ store, axiosMock } = await mockNotificationsResponse());
+  });
+
+  it('Successfully viewed last 24 hours and earlier section along with mark all as read label.', async () => {
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+    const notificationTraySection = screen.queryByTestId('notification-tray-section');
+
+    expect(within(notificationTraySection).queryByText('Last 24 hours')).toBeInTheDocument();
+    expect(within(notificationTraySection).queryByText('Earlier')).toBeInTheDocument();
+    expect(within(notificationTraySection).queryByText('Mark all as read')).toBeInTheDocument();
+  });
+
+  it('Successfully marked all notifications as read, removing the unread status.', async () => {
+    axiosMock.onPatch(markedAllNotificationsAsReadApiUrl).reply(200, { message: 'Notifications marked read.' });
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+    const markAllReadButton = screen.queryByTestId('mark-all-read');
+
+    expect(screen.queryByTestId('unread-notification-1')).toBeInTheDocument();
+    await act(async () => { fireEvent.click(markAllReadButton); });
+
+    expect(screen.queryByTestId('unread-notification-1')).not.toBeInTheDocument();
+  });
+
+  it('Successfully load more notifications by clicking on load more notification button.', async () => {
+    axiosMock.onPut(markNotificationsSeenApiUrl('discussion')).reply(200);
+    await executeThunk(markNotificationsAsSeen('discussions'), store.dispatch, store.getState);
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+
+    expect(screen.queryAllByTestId('notification-contents')).toHaveLength(10);
+    const loadMoreButton = screen.queryByTestId('load-more-notifications');
+
+    axiosMock.onGet(getNotificationsListApiUrl()).reply(
+      200,
+      (Factory.build('notificationsList', { num_pages: 2, current_page: 2 })),
+    );
+    await executeThunk(fetchNotificationList({ appName: 'discussion', page: 2 }), store.dispatch, store.getState);
+
+    await act(async () => { fireEvent.click(loadMoreButton); });
+    expect(screen.queryAllByTestId('notification-contents')).toHaveLength(12);
+  });
+});

src/Notifications/notificationTabs.test.jsx

@@ -0,0 +1,91 @@
+import React from 'react';
+
+import {
+  act, fireEvent, render, screen, within,
+} from '@testing-library/react';
+import { Context as ResponsiveContext } from 'react-responsive';
+import { Factory } from 'rosie';
+
+import { initializeMockApp } from '@edx/frontend-platform';
+import { IntlProvider } from '@edx/frontend-platform/i18n';
+import { AppContext, AppProvider } from '@edx/frontend-platform/react';
+
+import AuthenticatedUserDropdown from '../learning-header/AuthenticatedUserDropdown';
+import { initializeStore } from '../store';
+import mockNotificationsResponse from './test-utils';
+
+import './data/__factories__';
+
+let store;
+
+function renderComponent() {
+  render(
+    <ResponsiveContext.Provider>
+      <IntlProvider locale="en" messages={{}}>
+        <AppProvider store={store}>
+          <AppContext.Provider>
+            <AuthenticatedUserDropdown />
+          </AppContext.Provider>
+        </AppProvider>
+      </IntlProvider>
+    </ResponsiveContext.Provider>,
+  );
+}
+
+describe('Notification Tabs test cases.', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: '123abc',
+        username: 'testuser',
+        administrator: false,
+        roles: [],
+      },
+    });
+
+    Factory.resetAll();
+    store = initializeStore();
+
+    ({ store } = await mockNotificationsResponse());
+  });
+
+  it('Notification tabs displayed with default discussion tab selected and no unseen counts.', async () => {
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+
+    const tabs = screen.queryAllByRole('tab');
+    const selectedTab = tabs.find(tab => tab.getAttribute('aria-selected') === 'true');
+
+    expect(tabs.length).toEqual(5);
+    expect(within(selectedTab).queryByText('discussion')).toBeInTheDocument();
+    expect(within(selectedTab).queryByRole('status')).not.toBeInTheDocument();
+  });
+
+  it('Successfully showed unseen counts for unselected tabs.', async () => {
+    renderComponent();
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+
+    const tabs = screen.getAllByRole('tab');
+
+    expect(within(tabs[0]).queryByRole('status')).toBeInTheDocument();
+  });
+
+  it('Successfully selected reminder tab.', async () => {
+    renderComponent();
+
+    const bellIcon = screen.queryByTestId('notification-bell-icon');
+    await act(async () => { fireEvent.click(bellIcon); });
+    const notificationTab = screen.getAllByRole('tab');
+
+    await act(async () => { fireEvent.click(notificationTab[0], { dataset: { rbEventKey: 'reminders' } }); });
+
+    const tabs = screen.queryAllByRole('tab');
+    const selectedTab = tabs.find(tab => tab.getAttribute('aria-selected') === 'true');
+
+    expect(within(selectedTab).queryByText('reminders')).toBeInTheDocument();
+    expect(within(selectedTab).queryByRole('status')).not.toBeInTheDocument();
+  });
+});

src/Notifications/test-utils.js

@@ -0,0 +1,32 @@
+import MockAdapter from 'axios-mock-adapter';
+import { Factory } from 'rosie';
+
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+
+import { initializeStore } from '../store';
+import executeThunk from '../test-utils';
+import { getNotificationsListApiUrl, getNotificationsCountApiUrl } from './data/api';
+import { fetchAppsNotificationCount, fetchNotificationList } from './data/thunks';
+
+import './data/__factories__';
+
+const notificationCountsApiUrl = getNotificationsCountApiUrl();
+const notificationsApiUrl = getNotificationsListApiUrl();
+
+export default async function mockNotificationsResponse() {
+  const store = initializeStore();
+  const axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+  const notifications = (Factory.buildList('notification', 8, null, { createdDate: new Date().toISOString() }).concat(
+    Factory.buildList('notification', 2, null, { createdDate: '2023-06-01T00:46:11.979531Z' }),
+  ));
+  axiosMock.onGet(notificationCountsApiUrl).reply(200, (Factory.build('notificationsCount')));
+  axiosMock.onGet(notificationsApiUrl).reply(200, (Factory.build('notificationsList', {
+    results: notifications,
+    num_pages: 2,
+    next: `${notificationsApiUrl}?app_name=discussion&page=2`,
+  })));
+
+  await executeThunk(fetchAppsNotificationCount(), store.dispatch, store.getState);
+  await executeThunk(fetchNotificationList({ appName: 'discussion', page: 1 }), store.dispatch, store.getState);
+  return { store, axiosMock };
+}

src/i18n/messages/ar.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "الحساب",
   "header.menu.orderHistory.label": "سجل الطلبيات",
   "header.navigation.skipNavLink": "التخطي إلى المحتوى الرئيسي",
-  "header.menu.signOut.label": "تسجيل الخروج"
+  "header.menu.signOut.label": "تسجيل الخروج",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/de.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Skip to main content.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/es_419.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Cuenta",
   "header.menu.orderHistory.label": "Historial de órdenes",
   "header.navigation.skipNavLink": "Dirígete al contenido principal.",
-  "header.menu.signOut.label": "Cerrar sesión"
+  "header.menu.signOut.label": "Cerrar sesión",
+  "notification.title": "Notificaciones",
+  "notification.today.heading": "Últimas 24 horas",
+  "notification.earlier.heading": "Más temprano",
+  "notification.mark.as.read": "Marcar todo como leído",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Cargar más notificaciones"
 }

src/i18n/messages/fr.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Compte",
   "header.menu.orderHistory.label": "Historique des commandes",
   "header.navigation.skipNavLink": "Passer au contenu principal",
-  "header.menu.signOut.label": "Se déconnecter"
+  "header.menu.signOut.label": "Se déconnecter",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/fr_CA.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Compte",
   "header.menu.orderHistory.label": "Historique des commandes",
   "header.navigation.skipNavLink": "Passer au contenu principal.",
-  "header.menu.signOut.label": "Se déconnecter"
+  "header.menu.signOut.label": "Se déconnecter",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Dernières 24 heures",
+  "notification.earlier.heading": "Plus tôt",
+  "notification.mark.as.read": "tout marquer comme lu",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Charger plus de notifications"
 }

src/i18n/messages/hi.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Skip to main content.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/it.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Skip to main content.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/pt.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Skip to main content.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/ru.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Skip to main content.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/uk.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Перейти до головного змісту.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/i18n/messages/zh_CN.json

@@ -29,5 +29,11 @@
   "header.menu.account.label": "Account",
   "header.menu.orderHistory.label": "Order History",
   "header.navigation.skipNavLink": "Skip to main content.",
-  "header.menu.signOut.label": "Sign Out"
+  "header.menu.signOut.label": "Sign Out",
+  "notification.title": "Notifications",
+  "notification.today.heading": "Last 24 hours",
+  "notification.earlier.heading": "Earlier",
+  "notification.mark.as.read": "Mark all as read",
+  "notification.fullStop": "•",
+  "notification.load.more.notifications": "Load more notifications"
 }

src/index.scss

@@ -123,7 +123,7 @@ $white: #fff;
 }
 
 .content {
-  b {
+  strong {
     color: #00262B !important;
     font-weight: 500 !important;
   }

src/learning-header/AuthenticatedUserDropdown.jsx

@@ -15,7 +15,7 @@ import { RequestStatus } from '../Notifications/data/slice';
 import messages from './messages';
 
 const AuthenticatedUserDropdown = ({ intl, username }) => {
-  const showNotificationTray = useSelector(selectShowNotificationTray());
+  const showNotificationsTray = useSelector(selectShowNotificationTray());
   const notificationStatus = useSelector(selectNotificationStatus());
   const dispatch = useDispatch();
 
@@ -24,7 +24,7 @@ const AuthenticatedUserDropdown = ({ intl, username }) => {
       dispatch(fetchAppsNotificationCount());
     }
   // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [notificationStatus]);
+  }, []);
 
   const dashboardMenuItem = (
     <Dropdown.Item href={`${getConfig().LMS_BASE_URL}/dashboard`}>
@@ -35,7 +35,7 @@ const AuthenticatedUserDropdown = ({ intl, username }) => {
   return (
     <>
       <a className="text-gray-700" href={`${getConfig().SUPPORT_URL}`}>{intl.formatMessage(messages.help)}</a>
-      {showNotificationTray && <Notifications />}
+      {showNotificationsTray && <Notifications />}
       <Dropdown className="user-dropdown ml-3">
         <Dropdown.Toggle variant="outline-primary">
           <FontAwesomeIcon icon={faUserCircle} className="d-md-none" size="lg" />

src/setupTest.js

@@ -3,7 +3,7 @@
 import Enzyme from 'enzyme';
 import React from 'react';
 import PropTypes from 'prop-types';
-import Adapter from 'enzyme-adapter-react-16';
+import Adapter from '@wojtekmaj/enzyme-adapter-react-17';
 import '@testing-library/jest-dom';
 import '@testing-library/jest-dom/extend-expect';
 import 'babel-polyfill';

src/test-utils.js

@@ -0,0 +1,6 @@
+const executeThunk = async (thunk, dispatch, getState) => {
+  await thunk(dispatch, getState);
+  await new Promise(setImmediate);
+};
+
+export default executeThunk;