refactor: added url changes

Co-authored-by: adeel.tajamul <adeel.tajamul@arbisoft.com>

.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

@@ -0,0 +1,20 @@
+# 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

@@ -0,0 +1,12 @@
+# 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

Makefile

@@ -5,8 +5,6 @@ transifex_langs = "ar,fr,es_419,zh_CN,tr_TR,pl,fr_CA,fr_FR,de_DE,it_IT"
 transifex_utils = ./node_modules/.bin/transifex-utils.js
 i18n = ./src/i18n
 transifex_input = $(i18n)/transifex_input.json
-tx_url1 = https://www.transifex.com/api/2/project/edx-platform/resource/$(transifex_resource)/translation/en/strings/
-tx_url2 = https://www.transifex.com/api/2/project/edx-platform/resource/$(transifex_resource)/source/
 
 # This directory must match .babelrc .
 transifex_temp = ./temp/babel-plugin-react-intl

public/index.html

@@ -45,7 +45,7 @@
       };
     </script>
     <script
-      async
+      defer
       src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"
       id="MathJax-script"
     ></script>
@@ -54,7 +54,7 @@
     <div id="root" class="small"></div>
 
     <!-- begin usabilla live embed code -->
-    <script type="text/javascript">
+    <script defer type="text/javascript">
       window.lightningjs ||
         (function (n) {
           var e = "lightningjs";

src/components/HTMLLoader.jsx

@@ -13,12 +13,12 @@ const defaultSanitizeOptions = {
 };
 
 function HTMLLoader({
-  htmlNode, componentId, cssClassName, testId,
+  htmlNode, componentId, cssClassName, testId, delay,
 }) {
   const sanitizedMath = DOMPurify.sanitize(htmlNode, { ...defaultSanitizeOptions });
   const previewRef = useRef();
 
-  const debouncedPostContent = useDebounce(htmlNode, 500);
+  const debouncedPostContent = useDebounce(htmlNode, delay);
 
   useEffect(() => {
     let promise = Promise.resolve(); // Used to hold chain of typesetting calls
@@ -45,6 +45,7 @@ HTMLLoader.propTypes = {
   componentId: PropTypes.string,
   cssClassName: PropTypes.string,
   testId: PropTypes.string,
+  delay: PropTypes.number,
 };
 
 HTMLLoader.defaultProps = {
@@ -52,6 +53,7 @@ HTMLLoader.defaultProps = {
   componentId: null,
   cssClassName: '',
   testId: '',
+  delay: 0,
 };
 
 export default HTMLLoader;

src/components/PostPreviewPane.jsx

@@ -29,7 +29,13 @@ function PostPreviewPane({
             className="float-right p-3"
             iconClassNames="icon-size"
           />
-          <HTMLLoader htmlNode={htmlNode} cssClassName="text-primary" componentId="post-preview" testId="post-preview" />
+          <HTMLLoader
+            htmlNode={htmlNode}
+            cssClassName="text-primary"
+            componentId="post-preview"
+            testId="post-preview"
+            delay={500}
+          />
         </div>
       )}
       <div className="d-flex justify-content-end">

src/components/Search.jsx

@@ -72,6 +72,7 @@ function Search({ intl }) {
           <Icon
             src={SearchIcon}
             onClick={() => onSubmit(searchValue)}
+            data-testid="search-icon"
           />
         </span>
       </SearchField.Advanced>

src/discussions/common/ActionsDropdown.jsx

@@ -1,4 +1,4 @@
-import React, { useContext, useState } from 'react';
+import React, { useCallback, useRef, useState } from 'react';
 import PropTypes from 'prop-types';
 
 import { useSelector } from 'react-redux';
@@ -16,7 +16,6 @@ import messages from '../messages';
 import { commentShape } from '../post-comments/comments/comment/proptypes';
 import { postShape } from '../posts/post/proptypes';
 import { inBlackoutDateRange, useActions } from '../utils';
-import { DiscussionContext } from './context';
 
 function ActionsDropdown({
   intl,
@@ -26,41 +25,54 @@ function ActionsDropdown({
   iconSize,
   dropDownIconSize,
 }) {
+  const buttonRef = useRef();
   const [isOpen, open, close] = useToggle(false);
   const [target, setTarget] = useState(null);
   const actions = useActions(commentOrPost);
-  const { enableInContextSidebar } = useContext(DiscussionContext);
-  const handleActions = (action) => {
+
+  const handleActions = useCallback((action) => {
     const actionFunction = actionHandlers[action];
     if (actionFunction) {
       actionFunction();
     } else {
       logError(`Unknown or unimplemented action ${action}`);
     }
-  };
+  }, [actionHandlers]);
+
   const blackoutDateRange = useSelector(selectBlackoutDate);
   // Find and remove edit action if in blackout date range.
   if (inBlackoutDateRange(blackoutDateRange)) {
     actions.splice(actions.findIndex(action => action.id === 'edit'), 1);
   }
+
+  const onClickButton = useCallback(() => {
+    setTarget(buttonRef.current);
+    open();
+  }, [open]);
+
+  const onCloseModal = useCallback(() => {
+    close();
+    setTarget(null);
+  }, [close]);
+
   return (
     <>
       <IconButton
-        onClick={open}
+        onClick={onClickButton}
         alt={intl.formatMessage(messages.actionsAlt)}
         src={MoreHoriz}
         iconAs={Icon}
         disabled={disabled}
         size={iconSize}
-        ref={setTarget}
+        ref={buttonRef}
         iconClassNames={dropDownIconSize ? 'dropdown-icon-dimentions' : ''}
       />
       <div className="actions-dropdown">
         <ModalPopup
-          onClose={close}
+          onClose={onCloseModal}
           positionRef={target}
           isOpen={isOpen}
-          placement={enableInContextSidebar ? 'left' : 'auto-start'}
+          placement="bottom-end"
         >
           <div
             className="bg-white p-1 shadow d-flex flex-column"

src/discussions/common/HoverCard.test.jsx

@@ -27,7 +27,8 @@ const threadsApiUrl = getThreadsApiUrl();
 const discussionPostId = 'thread-1';
 const questionPostId = 'thread-2';
 const courseId = 'course-v1:edX+TestX+Test_Course';
-const reverseOrder = false;
+const reverseOrder = true;
+const enableInContextSidebar = false;
 let store;
 let axiosMock;
 let container;
@@ -45,6 +46,7 @@ function mockAxiosReturnPagedComments() {
             requested_fields: 'profile_image',
             endorsed,
             reverse_order: reverseOrder,
+            enable_in_context_sidebar: enableInContextSidebar,
           },
         })
         .reply(200, Factory.build('commentsResult', { can_delete: true }, {

src/discussions/data/api.js

@@ -8,14 +8,13 @@ ensureConfig([
 ], 'Posts API service');
 
 export const getCourseConfigApiUrl = () => `${getConfig().LMS_BASE_URL}/api/discussion/v1/courses/`;
-
+export const getDiscussionsConfigUrl = (courseId) => `${getCourseConfigApiUrl()}${courseId}/`;
 /**
  * Get discussions course config
  * @param {string} courseId
  */
 export async function getDiscussionsConfig(courseId) {
-  const url = `${getCourseConfigApiUrl()}${courseId}/`;
-  const { data } = await getAuthenticatedHttpClient().get(url);
+  const { data } = await getAuthenticatedHttpClient().get(getDiscussionsConfigUrl(courseId));
   return data;
 }
 
@@ -24,7 +23,7 @@ export async function getDiscussionsConfig(courseId) {
  * @param {string} courseId
  */
 export async function getDiscussionsSettings(courseId) {
-  const url = `${getCourseConfigApiUrl()}${courseId}/settings`;
+  const url = `${getDiscussionsConfigUrl(courseId)}settings`;
   const { data } = await getAuthenticatedHttpClient().get(url);
   return data;
 }

src/discussions/data/hooks.js

@@ -217,7 +217,7 @@ export const useTourConfiguration = (intl) => {
       advanceButtonText: intl.formatMessage(messages.advanceButtonText),
       dismissButtonText: intl.formatMessage(messages.dismissButtonText),
       endButtonText: intl.formatMessage(messages.endButtonText),
-      enabled: tour && Boolean(tour.showTour && !enableInContextSidebar),
+      enabled: tour && Boolean(tour.enabled && tour.showTour && !enableInContextSidebar),
       onDismiss: () => dispatch(updateTourShowStatus(tour.id)),
       onEnd: () => dispatch(updateTourShowStatus(tour.id)),
       checkpoints: tourCheckpoints(intl)[camelToConstant(tour.tourName)],

src/discussions/discussions-home/DiscussionsHome.jsx

@@ -124,7 +124,7 @@ export default function DiscussionsHome() {
             </Switch>
           )}
         </div>
-        <DiscussionsProductTour />
+        {!enableInContextSidebar && <DiscussionsProductTour />}
       </main>
       {!enableInContextSidebar && <Footer />}
     </DiscussionContext.Provider>

src/discussions/in-context-topics/TopicPostsView.test.jsx

@@ -0,0 +1,255 @@
+import {
+  fireEvent, render, screen, waitFor, within,
+} from '@testing-library/react';
+import MockAdapter from 'axios-mock-adapter';
+import { act } from 'react-dom/test-utils';
+import { IntlProvider } from 'react-intl';
+import { generatePath, MemoryRouter, Route } from 'react-router';
+import { Factory } from 'rosie';
+
+import { initializeMockApp } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { AppProvider } from '@edx/frontend-platform/react';
+
+import { PostActionsBar } from '../../components';
+import { Routes } from '../../data/constants';
+import { initializeStore } from '../../store';
+import { executeThunk } from '../../test-utils';
+import { DiscussionContext } from '../common/context';
+import { getThreadsApiUrl } from '../posts/data/api';
+import { fetchThreads } from '../posts/data/thunks';
+import { getCourseTopicsApiUrl } from './data/api';
+import { selectCoursewareTopics } from './data/selectors';
+import { fetchCourseTopicsV3 } from './data/thunks';
+import TopicPostsView from './TopicPostsView';
+import TopicsView from './TopicsView';
+
+import './data/__factories__';
+import '../posts/data/__factories__/threads.factory';
+
+const courseId = 'course-v1:edX+DemoX+Demo_Course';
+const threadsApiUrl = getThreadsApiUrl();
+const topicsApiUrl = getCourseTopicsApiUrl();
+let store;
+let axiosMock;
+let lastLocation;
+let container;
+
+async function renderComponent({ topicId, category } = { }) {
+  let path = `/${courseId}/topics`;
+  if (topicId) {
+    path = generatePath(Routes.POSTS.PATH, { courseId, topicId });
+  } else if (category) {
+    path = generatePath(Routes.TOPICS.CATEGORY, { courseId, category });
+  }
+  const wrapper = await render(
+    <IntlProvider locale="en">
+      <AppProvider store={store}>
+        <DiscussionContext.Provider value={{
+          courseId,
+          topicId,
+          category,
+          page: 'topics',
+        }}
+        >
+          <MemoryRouter initialEntries={[path]}>
+            <Route exact path={[Routes.POSTS.PATH, Routes.TOPICS.CATEGORY]}>
+              <TopicPostsView />
+            </Route>
+            <Route exact path={[Routes.TOPICS.ALL]}>
+              <PostActionsBar />
+              <TopicsView />
+            </Route>
+            <Route
+              render={({ location }) => {
+                lastLocation = location;
+                return null;
+              }}
+            />
+          </MemoryRouter>
+        </DiscussionContext.Provider>
+      </AppProvider>
+    </IntlProvider>,
+  );
+  container = wrapper.container;
+}
+
+describe('InContext Topic Posts View', () => {
+  let coursewareTopics;
+
+  beforeEach(() => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+
+    store = initializeStore({
+      config: {
+        enableInContext: true,
+        provider: 'openedx',
+        hasModerationPrivileges: true,
+        blackouts: [],
+      },
+    });
+    Factory.resetAll();
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    lastLocation = undefined;
+  });
+
+  async function setupTopicsMockResponse() {
+    axiosMock.onGet(`${topicsApiUrl}${courseId}`)
+      .reply(200, (Factory.buildList('topic', 1, null, {
+        topicPrefix: 'noncourseware-topic',
+        enabledInContext: true,
+        topicNamePrefix: 'general-topic',
+        usageKey: '',
+        courseware: false,
+        discussionCount: 1,
+        questionCount: 1,
+      })
+        .concat(Factory.buildList('section', 2, null, { topicPrefix: 'courseware' })))
+        .concat(Factory.buildList('archived-topics', 2, null)));
+    await executeThunk(fetchCourseTopicsV3(courseId), store.dispatch, store.getState);
+
+    const state = store.getState();
+    coursewareTopics = selectCoursewareTopics(state);
+  }
+
+  async function setupPostsMockResponse(topicId, numOfResponses = 3) {
+    axiosMock.onGet(threadsApiUrl)
+      .reply(() => {
+        const threadAttrs = { previewBody: 'thread preview body' };
+        return [200, Factory.build('threadsResult', {}, {
+          topicId,
+          threadAttrs,
+          count: numOfResponses,
+        })];
+      });
+    await executeThunk(fetchThreads(courseId), store.dispatch, store.getState);
+  }
+
+  test.each([
+    { parentId: 'noncourseware-topic-1', parentTitle: 'general-topic-1', topicType: 'NonCourseware' },
+    { parentId: 'courseware-topic-1-v3-1', parentTitle: 'Introduction Introduction 1-1-1', topicType: 'Courseware' },
+  ])('\'$topicType\' topic should have a required number of post lengths.', async ({ parentId, parentTitle }) => {
+    await setupTopicsMockResponse();
+    await setupPostsMockResponse(parentId, 3);
+
+    await act(async () => {
+      renderComponent({ topicId: parentId });
+    });
+
+    await waitFor(async () => {
+      const posts = await container.querySelectorAll('.discussion-post');
+      const backButton = screen.getByLabelText('Back to topics list');
+      const parentHeader = await screen.findByText(parentTitle);
+
+      expect(lastLocation.pathname.endsWith(`/topics/${parentId}`)).toBeTruthy();
+      expect(posts).toHaveLength(3);
+      expect(backButton).toBeInTheDocument();
+      expect(parentHeader).toBeInTheDocument();
+    });
+  });
+
+  it('A back button should redirect from list of posts to list of units.', async () => {
+    await setupTopicsMockResponse();
+    const subSection = coursewareTopics[0].children[0];
+    const unit = subSection.children[0];
+
+    await act(async () => {
+      setupPostsMockResponse(unit.id, 2);
+      renderComponent({ topicId: unit.id });
+    });
+
+    const backButton = await screen.getByLabelText('Back to topics list');
+
+    await act(async () => fireEvent.click(backButton));
+    await waitFor(async () => {
+      renderComponent({ category: subSection.id });
+
+      const subSectionList = await container.querySelector('.list-group');
+      const units = subSectionList.querySelectorAll('.discussion-topic');
+      const unitHeader = within(subSectionList).queryByText(unit.name);
+
+      expect(lastLocation.pathname.endsWith(`/category/${subSection.id}`)).toBeTruthy();
+      expect(unitHeader).toBeInTheDocument();
+      expect(units).toHaveLength(4);
+    });
+  });
+
+  it('A back button should redirect from units to the parent/selected subsection.', async () => {
+    await setupTopicsMockResponse();
+    const subSection = coursewareTopics[0].children[0];
+
+    renderComponent({ category: subSection.id });
+
+    const backButton = await screen.getByLabelText('Back to topics list');
+
+    await act(async () => fireEvent.click(backButton));
+    await waitFor(async () => {
+      renderComponent();
+
+      const sectionList = await container.querySelector('.list-group');
+      const subSections = sectionList.querySelectorAll('.discussion-topic-group');
+      const subSectionHeader = within(sectionList).queryByText(subSection.displayName);
+
+      expect(lastLocation.pathname.endsWith('/topics')).toBeTruthy();
+      expect(subSectionHeader).toBeInTheDocument();
+      expect(subSections).toHaveLength(3);
+    });
+  });
+
+  test.each([
+    { searchText: 'hello world', output: 'Showing 0 results for', resultCount: 0 },
+    { searchText: 'introduction', output: 'Showing 8 results for', resultCount: 8 },
+  ])('It should have a search bar with a clear button and \'$output\' results found text.',
+    async ({ searchText, output, resultCount }) => {
+      await setupTopicsMockResponse();
+      await renderComponent();
+
+      const searchField = await within(container).getByPlaceholderText('Search topics');
+      const searchButton = await within(container).getByTestId('search-icon');
+      fireEvent.change(searchField, { target: { value: searchText } });
+
+      await waitFor(async () => expect(searchField).toHaveValue(searchText));
+      await act(async () => fireEvent.click(searchButton));
+      await waitFor(async () => {
+        const clearButton = await within(container).queryByText('Clear results');
+        const searchMessage = within(container).queryByText(`${output} "${searchText}"`);
+        const units = container.querySelectorAll('.discussion-topic');
+
+        expect(searchMessage).toBeInTheDocument();
+        expect(clearButton).toBeInTheDocument();
+        expect(units).toHaveLength(resultCount);
+      });
+    });
+
+  it('When click on the clear button it should move to main topics pages.', async () => {
+    await setupTopicsMockResponse();
+    await renderComponent();
+
+    const searchText = 'hello world';
+    const searchField = await within(container).getByPlaceholderText('Search topics');
+    const searchButton = await within(container).getByTestId('search-icon');
+
+    fireEvent.change(searchField, { target: { value: searchText } });
+
+    await waitFor(async () => expect(searchField).toHaveValue(searchText));
+    await act(async () => fireEvent.click(searchButton));
+    await waitFor(async () => {
+      const clearButton = await within(container).queryByText('Clear results');
+
+      await act(async () => fireEvent.click(clearButton));
+      await waitFor(async () => {
+        const coursewareTopicList = await container.querySelectorAll('.discussion-topic-group');
+
+        expect(coursewareTopicList).toHaveLength(3);
+        expect(within(container).queryByText('Clear results')).not.toBeInTheDocument();
+      });
+    });
+  });
+});

src/discussions/in-context-topics/topic-search/TopicSearchBar.jsx

@@ -50,6 +50,7 @@ function TopicSearchBar({ intl }) {
           <Icon
             src={SearchIcon}
             onClick={() => onSubmit(searchValue)}
+            data-testid="search-icon"
           />
         </span>
       </SearchField.Advanced>

src/discussions/learners/LearnersView.test.jsx

@@ -1,6 +1,8 @@
 import React from 'react';
 
-import { render, screen } from '@testing-library/react';
+import {
+  fireEvent, render, screen, waitFor, within,
+} from '@testing-library/react';
 import MockAdapter from 'axios-mock-adapter';
 import { act } from 'react-dom/test-utils';
 import { IntlProvider } from 'react-intl';
@@ -11,11 +13,13 @@ import { initializeMockApp } from '@edx/frontend-platform';
 import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 import { AppProvider } from '@edx/frontend-platform/react';
 
+import { PostActionsBar } from '../../components';
 import { initializeStore } from '../../store';
 import { executeThunk } from '../../test-utils';
-import { getCourseConfigApiUrl } from '../data/api';
+import { DiscussionContext } from '../common/context';
+import { getDiscussionsConfigUrl } from '../data/api';
 import { fetchCourseConfig } from '../data/thunks';
-import { getCoursesApiUrl, getUserProfileApiUrl } from './data/api';
+import { getUserProfileApiUrl, learnersApiUrl } from './data/api';
 import { fetchLearners } from './data/thunks';
 import LearnersView from './LearnersView';
 
@@ -23,27 +27,31 @@ import './data/__factories__';
 
 let store;
 let axiosMock;
-const coursesApiUrl = getCoursesApiUrl();
-const courseConfigApiUrl = getCourseConfigApiUrl();
-const userProfileApiUrl = getUserProfileApiUrl();
 const courseId = 'course-v1:edX+TestX+Test_Course';
+let container;
 
 function renderComponent() {
-  return render(
+  const wrapper = render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
-        <MemoryRouter initialEntries={[`/${courseId}/`]}>
-          <Route path="/:courseId/">
-            <LearnersView />
-          </Route>
-        </MemoryRouter>
+        <DiscussionContext.Provider value={{
+          page: 'learners',
+        }}
+        >
+          <MemoryRouter initialEntries={[`/${courseId}/`]}>
+            <Route path="/:courseId/">
+              <PostActionsBar />
+              <LearnersView />
+            </Route>
+          </MemoryRouter>
+        </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );
+  container = wrapper.container;
 }
 
 describe('LearnersView', () => {
-  const learnerCount = 3;
   beforeEach(async () => {
     initializeMockApp({
       authenticatedUser: {
@@ -53,41 +61,190 @@ describe('LearnersView', () => {
         roles: [],
       },
     });
-
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
     store = initializeStore();
     Factory.resetAll();
-    const learnersData = Factory.build('learnersResult', {}, {
-      count: learnerCount,
-      pageSize: 6,
-    });
-    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
-    axiosMock.onGet(`${coursesApiUrl}${courseId}/activity_stats/`)
-      .reply(() => [200, learnersData]);
-    const learnersProfile = Factory.build('learnersProfile', {}, {
-      username: ['leaner-1', 'leaner-2', 'leaner-3'],
-    });
-    axiosMock.onGet(`${userProfileApiUrl}?username=leaner-1,leaner-2,leaner-3`)
-      .reply(() => [200, learnersProfile.profiles]);
-    await executeThunk(fetchLearners(courseId), store.dispatch, store.getState);
   });
 
-  describe('Basic', () => {
-    test('Learners tab is disabled by default', async () => {
-      await act(async () => {
-        await renderComponent();
-      });
-      expect(screen.queryByText(/Last active/i)).toBeFalsy();
+  async function setUpLearnerMockResponse(
+    count = 3,
+    pageSize = 6,
+    page = 1,
+    username = ['learner-1', 'learner-2', 'learner-3'],
+    searchText,
+  ) {
+    Factory.resetAll();
+    const learnersData = Factory.build('learnersResult', {}, {
+      count,
+      pageSize,
+      page,
     });
-    test('Learners tab is enabled', async () => {
-      axiosMock.onGet(`${courseConfigApiUrl}${courseId}/`).reply(200, {
-        learners_tab_enabled: true,
-        user_is_privileged: true,
-      });
-      axiosMock.onGet(`${courseConfigApiUrl}${courseId}/settings`).reply(200, {});
-      await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+    axiosMock.onGet(learnersApiUrl(courseId))
+      .reply(() => [200, learnersData]);
+
+    axiosMock.onGet(`${getUserProfileApiUrl()}?username=${username.join()}`)
+      .reply(() => [200, Factory.build('learnersProfile', {}, {
+        username,
+      }).profiles]);
+    await executeThunk(fetchLearners(courseId, { usernameSearch: searchText }), store.dispatch, store.getState);
+  }
+
+  async function assignPrivilages() {
+    axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+      learners_tab_enabled: true,
+      user_is_privileged: true,
+    });
+
+    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+  }
+
+  test('Learners tab is disabled by default', async () => {
+    await setUpLearnerMockResponse();
+    await renderComponent();
+
+    expect(screen.queryByText('learner-1')).not.toBeInTheDocument();
+  });
+
+  test('Learners tab is enabled', async () => {
+    await setUpLearnerMockResponse();
+    await assignPrivilages();
+    await waitFor(() => {
+      renderComponent();
+    });
+
+    expect(screen.queryByText('learner-1')).toBeInTheDocument();
+  });
+
+  test('Most activity should be selected by default for the non-moderator role.', async () => {
+    await setUpLearnerMockResponse();
+    await renderComponent();
+
+    const filterBar = container.querySelector('.collapsible-trigger');
+
+    await act(async () => {
+      fireEvent.click(filterBar);
+    });
+
+    await waitFor(() => {
+      const mostActivity = screen.getByTestId('activity selected');
+
+      expect(mostActivity).toBeInTheDocument();
+    });
+  });
+
+  it.each([
+    { searchBy: 'sort-recency', result: 0 },
+    { searchBy: 'sort-activity', result: 3 },
+  ])('successfully display learners by %s.', async ({ searchBy, result }) => {
+    await setUpLearnerMockResponse();
+    await assignPrivilages();
+    await renderComponent();
+
+    const filterBar = container.querySelector('.collapsible-trigger');
+    await act(async () => {
+      fireEvent.click(filterBar);
+    });
+
+    await waitFor(async () => {
+      const activity = container.querySelector(`#${searchBy}`);
+
       await act(async () => {
-        await renderComponent();
+        fireEvent.click(activity);
+      });
+      await waitFor(() => {
+        const learners = container.querySelectorAll('.discussion-post');
+
+        expect(learners).toHaveLength(result);
       });
     });
   });
+
+  it('should display a learner\'s list.', async () => {
+    await setUpLearnerMockResponse();
+    await assignPrivilages();
+    await waitFor(() => {
+      renderComponent();
+    });
+
+    const learners = await container.querySelectorAll('.discussion-post');
+    const firstLearner = learners.item(0);
+    const learnerAvatar = firstLearner.querySelector('[alt=learner-1]');
+    const learnerTitle = within(firstLearner).queryByText('learner-1');
+    const stats = firstLearner.querySelectorAll('.icon-size');
+
+    expect(learners).toHaveLength(3);
+    expect(learnerAvatar).toBeInTheDocument();
+    expect(learnerTitle).toBeInTheDocument();
+    expect(stats).toHaveLength(2);
+  });
+
+  it.each([
+    {
+      searchText: 'hello world',
+      output: 'Showing 0 results for',
+      learnersCount: 0,
+      username: [],
+    },
+    {
+      searchText: 'learner',
+      output: 'Showing 2 results for',
+      learnersCount: 2,
+      username:
+        ['learner-1', 'learner-2'],
+    },
+  ])('should have a search bar with a clear button and \'$output\' results found text.',
+    async ({
+      searchText, output, learnersCount, username,
+    }) => {
+      await setUpLearnerMockResponse();
+      await assignPrivilages();
+      await renderComponent();
+
+      const searchField = within(container).getByPlaceholderText('Search learners');
+      const searchButton = within(container).getByTestId('search-icon');
+
+      await fireEvent.change(searchField, { target: { value: searchText } });
+      await act(async () => {
+        fireEvent.click(searchButton);
+        setUpLearnerMockResponse(learnersCount, learnersCount, 1, username, searchText);
+      });
+
+      await waitFor(() => {
+        const clearButton = within(container).queryByText('Clear results');
+        const searchMessage = within(container).queryByText(`${output} "${searchText}"`);
+        const leaners = container.querySelectorAll('.discussion-post') ?? [];
+
+        expect(searchMessage).toBeInTheDocument();
+        expect(clearButton).toBeInTheDocument();
+        expect(leaners).toHaveLength(learnersCount);
+      });
+    });
+
+  test('When click on the clear button it should move to a list of all learners.', async () => {
+    await setUpLearnerMockResponse();
+    await assignPrivilages();
+    await renderComponent();
+
+    const searchField = within(container).getByPlaceholderText('Search learners');
+    const searchButton = within(container).getByTestId('search-icon');
+    let clearButton;
+
+    await fireEvent.change(searchField, { target: { value: 'learner' } });
+    await act(async () => {
+      fireEvent.click(searchButton);
+      setUpLearnerMockResponse(2, 2, 1, ['learner-1', 'learner-2'], 'learner');
+    });
+
+    await waitFor(() => {
+      clearButton = within(container).queryByText('Clear results');
+    });
+    await act(async () => fireEvent.click(clearButton));
+    await waitFor(() => {
+      setUpLearnerMockResponse();
+    });
+
+    const learners = container.querySelectorAll('.discussion-post');
+
+    expect(learners).toHaveLength(3);
+  });
 });

src/discussions/learners/data/__factories__/learners.factory.js

@@ -2,7 +2,7 @@ import { Factory } from 'rosie';
 
 Factory.define('learner')
   .sequence('id')
-  .attr('username', ['id'], (id) => `leaner-${id}`)
+  .attr('username', ['id'], (id) => `learner-${id}`)
   .option('activeFlags', null, null)
   .attr('active_flags', ['activeFlags'], (activeFlags) => activeFlags)
   .attrs({
@@ -13,9 +13,9 @@ Factory.define('learner')
   });
 
 Factory.define('learnersResult')
-  .option('count', null, 3)
-  .option('page', null, 1)
-  .option('pageSize', null, 5)
+  .option('count', null)
+  .option('page', null)
+  .option('pageSize', null)
   .option('courseId', null, 'course-v1:Test+TestX+Test_Course')
   .option('activeFlags', null, 0)
   .attr(
@@ -23,14 +23,8 @@ Factory.define('learnersResult')
     ['courseId', 'count', 'page', 'pageSize'],
     (courseId, count, page, pageSize) => {
       const numPages = Math.ceil(count / pageSize);
-      const next = page < numPages
-        ? `http://test.site/api/discussion/v1/courses/course-v1:edX+DemoX+Demo_Course/activity_stats?page=${page + 1
-        }`
-        : null;
-      const prev = page > 1
-        ? `http://test.site/api/discussion/v1/courses/course-v1:edX+DemoX+Demo_Course/activity_stats?page=${page - 1
-        }`
-        : null;
+      const next = page < numPages ? page + 1 : null;
+      const prev = page > 1 ? page - 1 : null;
       return {
         next,
         prev,
@@ -65,7 +59,7 @@ Factory.define('learnersResult')
   );
 
 Factory.define('learnersProfile')
-  .option('usernames', null, ['leaner-1', 'leaner-2', 'leaner-3'])
+  .option('usernames', null, ['learner-1', 'learner-2', 'learner-3'])
   .attr('profiles', ['usernames'], (usernames) => {
     const profiles = usernames.map((user) => ({
       account_privacy: 'private',

src/discussions/learners/data/api.js

@@ -10,6 +10,8 @@ ensureConfig([
 
 export const getCoursesApiUrl = () => `${getConfig().LMS_BASE_URL}/api/discussion/v1/courses/`;
 export const getUserProfileApiUrl = () => `${getConfig().LMS_BASE_URL}/api/user/v1/accounts`;
+export const learnerPostsApiUrl = (courseId) => `${getCoursesApiUrl()}${courseId}/learner/`;
+export const learnersApiUrl = (courseId) => `${getCoursesApiUrl()}${courseId}/activity_stats/`;
 
 /**
  * Fetches all the learners in the given course.
@@ -18,8 +20,7 @@ export const getUserProfileApiUrl = () => `${getConfig().LMS_BASE_URL}/api/user/
  * @returns {Promise<{}>}
  */
 export async function getLearners(courseId, params) {
-  const url = `${getCoursesApiUrl()}${courseId}/activity_stats/`;
-  const { data } = await getAuthenticatedHttpClient().get(url, { params });
+  const { data } = await getAuthenticatedHttpClient().get(learnersApiUrl(courseId), { params });
   return data;
 }
 
@@ -65,8 +66,6 @@ export async function getUserPosts(courseId, {
   countFlagged,
   cohort,
 } = {}) {
-  const learnerPostsApiUrl = `${getCoursesApiUrl()}${courseId}/learner/`;
-
   const params = snakeCaseObject({
     page,
     pageSize,
@@ -81,6 +80,6 @@ export async function getUserPosts(courseId, {
   });
 
   const { data } = await getAuthenticatedHttpClient()
-    .get(learnerPostsApiUrl, { params });
+    .get(learnerPostsApiUrl(courseId), { params });
   return data;
 }

src/discussions/learners/data/api.test.jsx

@@ -0,0 +1,79 @@
+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 { setupLearnerMockResponse, setupPostsMockResponse } from '../test-utils';
+
+import './__factories__';
+
+const courseId2 = 'course-v1:edX+TestX+Test_Course2';
+let axiosMock;
+
+describe('Learner api test cases', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+    Factory.resetAll();
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  it('Successfully get and store API response for the learner\'s list and learners posts in redux',
+    async () => {
+      const learners = await setupLearnerMockResponse();
+      const threads = await setupPostsMockResponse();
+
+      expect(learners.status).toEqual('successful');
+      expect(Object.values(learners.learnerProfiles)).toHaveLength(3);
+      expect(threads.status).toEqual('successful');
+      expect(Object.values(threads.threadsById)).toHaveLength(2);
+    });
+
+  it.each([
+    { status: 'statusUnread', search: 'Title', cohort: 'post' },
+    { status: 'statusUnanswered', search: 'Title', cohort: 'post' },
+    { status: 'statusReported', search: 'Title', cohort: 'post' },
+    { status: 'statusUnresponded', search: 'Title', cohort: 'post' },
+  ])('Successfully fetch user posts based on %s filters',
+    async ({ status, search, cohort }) => {
+      const threads = await setupPostsMockResponse({ filters: { status, search, cohort } });
+
+      expect(threads.status).toEqual('successful');
+      expect(Object.values(threads.threadsById)).toHaveLength(2);
+    });
+
+  it('Failed to fetch learners', async () => {
+    const learners = await setupLearnerMockResponse({ learnerCourseId: courseId2 });
+
+    expect(learners.status).toEqual('failed');
+  });
+
+  it('Denied to fetch learners', async () => {
+    const learners = await setupLearnerMockResponse({ statusCode: 403 });
+
+    expect(learners.status).toEqual('denied');
+  });
+
+  it('Failed to fetch learnerPosts', async () => {
+    const threads = await setupPostsMockResponse({ learnerCourseId: courseId2 });
+
+    expect(threads.status).toEqual('failed');
+  });
+
+  it('Denied to fetch learnerPosts', async () => {
+    const threads = await setupPostsMockResponse({ statusCode: 403 });
+
+    expect(threads.status).toEqual('denied');
+  });
+});

src/discussions/learners/data/redux.test.jsx

@@ -0,0 +1,120 @@
+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 { setupLearnerMockResponse } from '../test-utils';
+import { setPostFilter, setSortedBy, setUsernameSearch } from './slices';
+import { fetchLearners } from './thunks';
+
+import './__factories__';
+
+let axiosMock;
+let store;
+
+describe('Learner redux test cases', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+    Factory.resetAll();
+    store = initializeStore();
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  test('Successfully load initial states in redux', async () => {
+    executeThunk(
+      fetchLearners('course-v1:edX+DemoX+Demo_Course', { usernameSearch: 'learner-1' }),
+      store.dispatch, store.getState,
+    );
+    const { learners } = store.getState();
+
+    expect(learners.status).toEqual('in-progress');
+    expect(learners.learnerProfiles).toEqual({});
+    expect(learners.pages).toHaveLength(0);
+    expect(learners.nextPage).toBeNull();
+    expect(learners.totalPages).toBeNull();
+    expect(learners.totalLearners).toBeNull();
+    expect(learners.sortedBy).toEqual('activity');
+    expect(learners.usernameSearch).toBeNull();
+    expect(learners.postFilter.postType).toEqual('all');
+    expect(learners.postFilter.status).toEqual('statusAll');
+    expect(learners.postFilter.orderBy).toEqual('lastActivityAt');
+    expect(learners.postFilter.cohort).toEqual('');
+  });
+
+  test('Successfully store a learner posts stats data as pages object in redux',
+    async () => {
+      const learners = await setupLearnerMockResponse();
+      const page = learners.pages[0];
+      const statsObject = page[0];
+
+      expect(page).toHaveLength(3);
+      expect(statsObject.responses).toEqual(3);
+      expect(statsObject.threads).toEqual(1);
+      expect(statsObject.replies).toEqual(0);
+    });
+
+  test('Successfully store the nextPage, totalPages, totalLearners, and sortedBy data in redux',
+    async () => {
+      const learners = await setupLearnerMockResponse();
+
+      expect(learners.nextPage).toEqual(2);
+      expect(learners.totalPages).toEqual(2);
+      expect(learners.totalLearners).toEqual(6);
+      expect(learners.sortedBy).toEqual('activity');
+    });
+
+  test('Successfully updated the learner\'s sort data in redux', async () => {
+    const learners = await setupLearnerMockResponse();
+
+    expect(learners.sortedBy).toEqual('activity');
+    expect(learners.pages[0]).toHaveLength(3);
+
+    await store.dispatch(setSortedBy('recency'));
+    const updatedLearners = store.getState().learners;
+
+    expect(updatedLearners.sortedBy).toEqual('recency');
+    expect(updatedLearners.pages).toHaveLength(0);
+  });
+
+  test('Successfully updated the post-filter data in redux', async () => {
+    const learners = await setupLearnerMockResponse();
+    const filter = {
+      ...learners.postFilter,
+      postType: 'discussion',
+    };
+
+    expect(learners.postFilter.postType).toEqual('all');
+
+    await store.dispatch(setPostFilter(filter));
+    const updatedLearners = store.getState().learners;
+
+    expect(updatedLearners.postFilter.postType).toEqual('discussion');
+    expect(updatedLearners.pages).toHaveLength(0);
+  });
+
+  test('Successfully update the learner\'s search query in redux when searching for a learner',
+    async () => {
+      const learners = await setupLearnerMockResponse();
+
+      expect(learners.usernameSearch).toBeNull();
+
+      await store.dispatch(setUsernameSearch('learner-2'));
+      const updatedLearners = store.getState().learners;
+
+      expect(updatedLearners.usernameSearch).toEqual('learner-2');
+    });
+});

src/discussions/learners/data/selector.test.jsx

@@ -0,0 +1,81 @@
+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 { getUserProfileApiUrl, learnersApiUrl } from './api';
+import {
+  learnersLoadingStatus,
+  selectLearnerNextPage,
+  selectLearnerSorting,
+  selectUsernameSearch,
+} from './selectors';
+import { fetchLearners } from './thunks';
+
+import './__factories__';
+
+const courseId = 'course-v1:edX+DemoX+Demo_Course';
+const userProfileApiUrl = getUserProfileApiUrl();
+
+let axiosMock;
+let store;
+const username = 'abc123';
+const learnerCount = 6;
+let state;
+
+describe('Learner selectors test cases', () => {
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username,
+        administrator: true,
+        roles: [],
+      },
+    });
+    Factory.resetAll();
+    store = initializeStore();
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+
+    axiosMock.onGet(learnersApiUrl(courseId))
+      .reply(() => [200, Factory.build('learnersResult', {}, {
+        count: learnerCount,
+        pageSize: 3,
+      })]);
+
+    axiosMock.onGet(`${userProfileApiUrl}?username=learner-1,learner-2,learner-3`)
+      .reply(() => [200, Factory.build('learnersProfile', {}, {
+        username: ['learner-1', 'learner-2', 'learner-3'],
+      }).profiles]);
+
+    await executeThunk(fetchLearners(courseId), store.dispatch, store.getState);
+    state = store.getState();
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  test('learnersLoadingStatus should return learners list loading status.', async () => {
+    const status = learnersLoadingStatus()(state);
+    expect(status).toEqual('successful');
+  });
+
+  test('selectUsernameSearch should return a learner search query.', async () => {
+    const userNameSearch = selectUsernameSearch()(state);
+    expect(userNameSearch).toBeNull();
+  });
+
+  test('selectLearnerSorting should return learner sortedBy.', async () => {
+    const learnerSorting = selectLearnerSorting()(state);
+    expect(learnerSorting).toEqual('activity');
+  });
+
+  test('selectLearnerNextPage should return learners next page.', async () => {
+    const learnerNextPage = selectLearnerNextPage()(state);
+    expect(learnerNextPage).toEqual(2);
+  });
+});

src/discussions/learners/learner/LearnerFilterBar.jsx

@@ -24,7 +24,7 @@ const ActionItem = ({
   <label
     htmlFor={id}
     className="focus border-bottom-0 d-flex align-items-center w-100 py-2 m-0 font-weight-500 filter-menu"
-    data-testid={value === selected ? 'selected' : null}
+    data-testid={value === selected ? `${value} selected` : null}
     style={{ cursor: 'pointer' }}
     aria-checked={value === selected}
   >

src/discussions/learners/test-utils.js

@@ -0,0 +1,52 @@
+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 { getUserProfileApiUrl, learnerPostsApiUrl, learnersApiUrl } from './data/api';
+import { fetchLearners, fetchUserPosts } from './data/thunks';
+
+const courseId = 'course-v1:edX+DemoX+Demo_Course';
+
+export async function setupLearnerMockResponse({
+  learnerCourseId = courseId,
+  statusCode = 200,
+  learnerCount = 6,
+} = {}) {
+  const store = initializeStore();
+  const axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+
+  axiosMock.onGet(learnersApiUrl(learnerCourseId))
+    .reply(() => [statusCode, Factory.build('learnersResult', {}, {
+      count: learnerCount,
+      pageSize: 3,
+    })]);
+
+  axiosMock.onGet(`${getUserProfileApiUrl()}?username=learner-1,learner-2,learner-3`)
+    .reply(() => [statusCode, Factory.build('learnersProfile', {}, {
+      username: ['learner-1', 'learner-2', 'learner-3'],
+    }).profiles]);
+
+  await executeThunk(fetchLearners(courseId), store.dispatch, store.getState);
+  return store.getState().learners;
+}
+
+export async function setupPostsMockResponse({
+  learnerCourseId = courseId,
+  statusCode = 200,
+  username = 'abc123',
+  filters = { status: 'all' },
+} = {}) {
+  const store = initializeStore();
+  const axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+
+  axiosMock.onGet(learnerPostsApiUrl(learnerCourseId), { username, count_flagged: true })
+    .reply(() => [statusCode, Factory.build('learnerPosts', {}, {
+      abuseFlaggedCount: 1,
+    })]);
+
+  await executeThunk(fetchUserPosts(courseId, { filters }), store.dispatch, store.getState);
+  return store.getState().threads;
+}

src/discussions/post-comments/PostCommentsView.jsx

@@ -1,6 +1,5 @@
 import React, { useContext, useEffect, useState } from 'react';
 
-import { useSelector } from 'react-redux';
 import { useParams } from 'react-router';
 import { useHistory, useLocation } from 'react-router-dom';
 
@@ -10,9 +9,7 @@ import {
 } from '@edx/paragon';
 import { ArrowBack } from '@edx/paragon/icons';
 
-import {
-  EndorsementStatus, PostsPages, RequestStatus, ThreadType,
-} from '../../data/constants';
+import { EndorsementStatus, PostsPages, ThreadType } from '../../data/constants';
 import { useDispatchWithState } from '../../data/hooks';
 import { DiscussionContext } from '../common/context';
 import { useIsOnDesktop } from '../data/hooks';
@@ -24,14 +21,12 @@ import { ResponseEditor } from './comments/comment';
 import CommentsSort from './comments/CommentsSort';
 import CommentsView from './comments/CommentsView';
 import { useCommentsCount, usePost } from './data/hooks';
-import { selectCommentsStatus } from './data/selectors';
 import messages from './messages';
 
 function PostCommentsView({ intl }) {
   const [isLoading, submitDispatch] = useDispatchWithState();
   const { postId } = useParams();
   const thread = usePost(postId);
-  const commentsStatus = useSelector(selectCommentsStatus);
   const commentsCount = useCommentsCount(postId);
   const history = useHistory();
   const location = useLocation();
@@ -40,7 +35,6 @@ function PostCommentsView({ intl }) {
   const {
     courseId, learnerUsername, category, topicId, page, enableInContextSidebar,
   } = useContext(DiscussionContext);
-  const enableCommentsSort = false;
 
   useEffect(() => {
     if (!thread) { submitDispatch(fetchThread(postId, courseId, true)); }
@@ -99,7 +93,7 @@ function PostCommentsView({ intl }) {
         )
       )}
       <div
-        className="discussion-comments d-flex flex-column card border-0 post-card-margin post-card-padding"
+        className="discussion-comments d-flex flex-column card border-0 post-card-margin post-card-padding on-focus"
       >
         <Post post={thread} handleAddResponseButton={() => setAddingResponse(true)} />
         {!thread.closed && (
@@ -110,7 +104,7 @@ function PostCommentsView({ intl }) {
           />
         )}
       </div>
-      {!!commentsCount && commentsStatus === RequestStatus.SUCCESSFUL && enableCommentsSort && <CommentsSort />}
+      {!!commentsCount && <CommentsSort />}
       {thread.type === ThreadType.DISCUSSION && (
         <CommentsView
           postId={postId}

src/discussions/post-comments/PostCommentsView.test.jsx

@@ -10,6 +10,7 @@ import { camelCaseObject, initializeMockApp } from '@edx/frontend-platform';
 import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 import { AppProvider } from '@edx/frontend-platform/react';
 
+import { getApiBaseUrl } from '../../data/constants';
 import { initializeStore } from '../../store';
 import { executeThunk } from '../../test-utils';
 import { DiscussionContext } from '../common/context';
@@ -17,11 +18,18 @@ import { getCourseConfigApiUrl } from '../data/api';
 import { fetchCourseConfig } from '../data/thunks';
 import DiscussionContent from '../discussions-home/DiscussionContent';
 import { getThreadsApiUrl } from '../posts/data/api';
-import { fetchThreads } from '../posts/data/thunks';
+import { fetchThread, fetchThreads } from '../posts/data/thunks';
+import { fetchCourseTopics } from '../topics/data/thunks';
+import { getDiscussionTourUrl } from '../tours/data/api';
+import { selectTours } from '../tours/data/selectors';
+import { fetchDiscussionTours } from '../tours/data/thunks';
+import discussionTourFactory from '../tours/data/tours.factory';
 import { getCommentsApiUrl } from './data/api';
+import { removeComment } from './data/thunks';
 
 import '../posts/data/__factories__';
 import './data/__factories__';
+import '../topics/data/__factories__';
 
 const courseConfigApiUrl = getCourseConfigApiUrl();
 const commentsApiUrl = getCommentsApiUrl();
@@ -30,10 +38,14 @@ const discussionPostId = 'thread-1';
 const questionPostId = 'thread-2';
 const closedPostId = 'thread-2';
 const courseId = 'course-v1:edX+TestX+Test_Course';
-const reverseOrder = false;
+const topicsApiUrl = `${getApiBaseUrl()}/api/discussion/v1/course_topics/${courseId}`;
+const reverseOrder = true;
+const enableInContextSidebar = false;
 let store;
 let axiosMock;
 let testLocation;
+let container;
+let unmount;
 
 function mockAxiosReturnPagedComments() {
   [null, false, true].forEach(endorsed => {
@@ -48,6 +60,7 @@ function mockAxiosReturnPagedComments() {
             requested_fields: 'profile_image',
             endorsed,
             reverse_order: reverseOrder,
+            enable_in_context_sidebar: enableInContextSidebar,
           },
         })
         .reply(200, Factory.build('commentsResult', { can_delete: true }, {
@@ -69,6 +82,7 @@ function mockAxiosReturnPagedCommentsResponses() {
     page: undefined,
     page_size: undefined,
     requested_fields: 'profile_image',
+    reverse_order: true,
   };
 
   for (let page = 1; page <= 2; page++) {
@@ -83,6 +97,12 @@ function mockAxiosReturnPagedCommentsResponses() {
   }
 }
 
+async function getThreadAPIResponse(threadId, topicId) {
+  axiosMock.onGet(`${threadsApiUrl}${discussionPostId}/`)
+    .reply(200, Factory.build('thread', { id: threadId, topic_id: topicId }));
+  await executeThunk(fetchThread(discussionPostId), store.dispatch, store.getState);
+}
+
 function renderComponent(postId) {
   const wrapper = render(
     <IntlProvider locale="en">
@@ -104,9 +124,49 @@ function renderComponent(postId) {
       </AppProvider>
     </IntlProvider>,
   );
-  return wrapper;
+  container = wrapper.container;
+  unmount = wrapper.unmount;
 }
 
+describe('PostView', () => {
+  beforeEach(() => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+
+    store = initializeStore();
+    Factory.resetAll();
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+
+    axiosMock.onGet(topicsApiUrl)
+      .reply(200, {
+        non_courseware_topics: Factory.buildList('topic', 1, {}, { topicPrefix: 'non-courseware-' }),
+        courseware_topics: Factory.buildList('category', 1, {}, { name: 'courseware' }),
+      });
+    executeThunk(fetchCourseTopics(courseId), store.dispatch, store.getState);
+  });
+
+  it('should show Topic Info for non-courseware topics', async () => {
+    await getThreadAPIResponse('thread-1', 'non-courseware-topic-1');
+    renderComponent(discussionPostId);
+    expect(await screen.findByText('Related to')).toBeInTheDocument();
+    expect(await screen.findByText('non-courseware-topic 1')).toBeInTheDocument();
+  });
+
+  it('should show Topic Info for courseware topics with category', async () => {
+    await getThreadAPIResponse('thread-2', 'courseware-topic-2');
+
+    renderComponent('thread-2');
+    expect(await screen.findByText('Related to')).toBeInTheDocument();
+    expect(await screen.findByText('category-1 / courseware-topic 2')).toBeInTheDocument();
+  });
+});
+
 describe('ThreadView', () => {
   beforeEach(() => {
     initializeMockApp({
@@ -681,19 +741,87 @@ describe('ThreadView', () => {
     });
   });
 
-  describe('for comments replies', () => {
+  describe('For comments replies', () => {
     it('shows delete confirmation modal', async () => {
       renderComponent(discussionPostId);
+
       const reply = await waitFor(() => screen.findByTestId('reply-comment-7'));
-      await act(async () => {
-        fireEvent.click(
-          within(reply).getByRole('button', { name: /actions menu/i }),
-        );
-      });
-      await act(async () => {
-        fireEvent.click(screen.queryByRole('button', { name: /Delete/i }));
-      });
+      await act(async () => { fireEvent.click(within(reply).getByRole('button', { name: /actions menu/i })); });
+      await act(async () => { fireEvent.click(screen.queryByRole('button', { name: /Delete/i })); });
+
       expect(screen.queryByRole('dialog', { name: /Delete/i, exact: false })).toBeInTheDocument();
     });
   });
+
+  describe('for comments sort', () => {
+    const getCommentSortDropdown = async () => {
+      renderComponent(discussionPostId);
+
+      await waitFor(() => screen.findByTestId('comment-comment-1'));
+      await act(async () => { fireEvent.click(screen.getByRole('button', { name: /Newest first/i })); });
+      return waitFor(() => screen.findByTestId('comment-sort-dropdown-modal-popup'));
+    };
+
+    it('should show sort dropdown if there are endorse or unendorsed comments', async () => {
+      renderComponent(discussionPostId);
+
+      const comment = await waitFor(() => screen.findByTestId('comment-comment-1'));
+      const sortWrapper = container.querySelector('.comments-sort');
+      const sortDropDown = within(sortWrapper).getByRole('button', { name: /Newest first/i });
+
+      expect(comment).toBeInTheDocument();
+      expect(sortDropDown).toBeInTheDocument();
+    });
+
+    it('should not show sort dropdown if there is no response', async () => {
+      const commentId = 'comment-1';
+      renderComponent(discussionPostId);
+
+      await waitFor(() => screen.findByTestId('comment-comment-1'));
+      axiosMock.onDelete(`${commentsApiUrl}${commentId}/`).reply(201);
+      await executeThunk(removeComment(commentId, discussionPostId), store.dispatch, store.getState);
+
+      expect(await waitFor(() => screen.findByText('No responses', { exact: true }))).toBeInTheDocument();
+      expect(container.querySelector('.comments-sort')).not.toBeInTheDocument();
+    });
+
+    it('should have only two options', async () => {
+      const dropdown = await getCommentSortDropdown();
+
+      expect(dropdown).toBeInTheDocument();
+      expect(await within(dropdown).getAllByRole('button')).toHaveLength(2);
+    });
+
+    it('should be selected Newest first and auto focus', async () => {
+      const dropdown = await getCommentSortDropdown();
+
+      expect(within(dropdown).getByRole('button', { name: /Newest first/i })).toBeInTheDocument();
+      expect(within(dropdown).getByRole('button', { name: /Newest first/i })).toHaveFocus();
+      expect(within(dropdown).getByRole('button', { name: /Oldest first/i })).not.toHaveFocus();
+    });
+
+    test('successfully handles sort state update', async () => {
+      const dropdown = await getCommentSortDropdown();
+
+      expect(store.getState().comments.sortOrder).toBeTruthy();
+      await act(async () => { fireEvent.click(within(dropdown).getByRole('button', { name: /Oldest first/i })); });
+
+      expect(store.getState().comments.sortOrder).toBeFalsy();
+    });
+
+    test('successfully handles tour state update', async () => {
+      const tourName = 'response_sort';
+      await axiosMock.onGet(getDiscussionTourUrl(), {}).reply(200, [discussionTourFactory.build({ tourName })]);
+      await executeThunk(fetchDiscussionTours(), store.dispatch, store.getState);
+
+      renderComponent(discussionPostId);
+
+      await waitFor(() => screen.findByTestId('comment-comment-1'));
+      const responseSortTour = () => selectTours(store.getState()).find(item => item.tourName === 'response_sort');
+
+      expect(responseSortTour().enabled).toBeTruthy();
+      await unmount();
+      expect(responseSortTour().enabled).toBeFalsy();
+    });
+  });
 });

src/discussions/post-comments/comments/CommentsSort.jsx

@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useCallback, useEffect, useState } from 'react';
 
 import { useDispatch, useSelector } from 'react-redux';
 
@@ -6,31 +6,43 @@ import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import {
   Button, Dropdown, ModalPopup, useToggle,
 } from '@edx/paragon';
-import {
-  ExpandLess, ExpandMore,
-} from '@edx/paragon/icons';
+import { ExpandLess, ExpandMore } from '@edx/paragon/icons';
 
+import { updateUserDiscussionsTourByName } from '../../tours/data';
 import { selectCommentSortOrder } from '../data/selectors';
 import { setCommentSortOrder } from '../data/slices';
 import messages from '../messages';
 
-function CommentSortDropdown({
-  intl,
-}) {
+function CommentSortDropdown({ intl }) {
   const dispatch = useDispatch();
   const sortedOrder = useSelector(selectCommentSortOrder);
   const [isOpen, open, close] = useToggle(false);
   const [target, setTarget] = useState(null);
-
   const handleActions = (reverseOrder) => {
     close();
     dispatch(setCommentSortOrder(reverseOrder));
   };
 
+  const enableCommentsSortTour = useCallback((enabled) => {
+    const data = {
+      enabled,
+      tourName: 'response_sort',
+    };
+    dispatch(updateUserDiscussionsTourByName(data));
+  }, []);
+
+  useEffect(() => {
+    enableCommentsSortTour(true);
+    return () => {
+      enableCommentsSortTour(false);
+    };
+  }, []);
+
   return (
     <>
       <div className="comments-sort d-flex justify-content-end mx-4 mt-2">
         <Button
+          id="comment-sort"
           alt={intl.formatMessage(messages.actionsAlt)}
           ref={setTarget}
           variant="tertiary"

src/discussions/post-comments/comments/comment/Comment.jsx

@@ -1,4 +1,7 @@
-import React, { useContext, useEffect, useState } from 'react';
+import React, {
+  useCallback,
+  useContext, useEffect, useMemo, useState,
+} from 'react';
 import PropTypes from 'prop-types';
 
 import classNames from 'classnames';
@@ -16,7 +19,12 @@ import { useUserCanAddThreadInBlackoutDate } from '../../../data/hooks';
 import { fetchThread } from '../../../posts/data/thunks';
 import LikeButton from '../../../posts/post/LikeButton';
 import { useActions } from '../../../utils';
-import { selectCommentCurrentPage, selectCommentHasMorePages, selectCommentResponses } from '../../data/selectors';
+import {
+  selectCommentCurrentPage,
+  selectCommentHasMorePages,
+  selectCommentResponses,
+  selectCommentSortOrder,
+} from '../../data/selectors';
 import { editComment, fetchCommentResponses, removeComment } from '../../data/thunks';
 import messages from '../../messages';
 import CommentEditor from './CommentEditor';
@@ -43,28 +51,32 @@ function Comment({
   const hasMorePages = useSelector(selectCommentHasMorePages(comment.id));
   const currentPage = useSelector(selectCommentCurrentPage(comment.id));
   const userCanAddThreadInBlackoutDate = useUserCanAddThreadInBlackoutDate();
-  const {
-    courseId,
-  } = useContext(DiscussionContext);
+  const { courseId } = useContext(DiscussionContext);
+  const sortedOrder = useSelector(selectCommentSortOrder);
+
   useEffect(() => {
     // If the comment has a parent comment, it won't have any children, so don't fetch them.
-    if (hasChildren && !currentPage && showFullThread) {
-      dispatch(fetchCommentResponses(comment.id, { page: 1 }));
+    if (hasChildren && showFullThread) {
+      dispatch(fetchCommentResponses(comment.id, {
+        page: 1,
+        reverseOrder: sortedOrder,
+      }));
     }
-  }, [comment.id]);
+  }, [comment.id, sortedOrder]);
+
   const actions = useActions({
     ...comment,
     postType,
   });
   const endorseIcons = actions.find(({ action }) => action === EndorsementStatus.ENDORSED);
 
-  const handleAbusedFlag = () => {
+  const handleAbusedFlag = useCallback(() => {
     if (comment.abuseFlagged) {
       dispatch(editComment(comment.id, { flagged: !comment.abuseFlagged }));
     } else {
       showReportConfirmation();
     }
-  };
+  }, [comment.abuseFlagged, comment.id, dispatch, showReportConfirmation]);
 
   const handleDeleteConfirmation = () => {
     dispatch(removeComment(comment.id));
@@ -76,7 +88,7 @@ function Comment({
     hideReportConfirmation();
   };
 
-  const actionHandlers = {
+  const actionHandlers = useMemo(() => ({
     [ContentActions.EDIT_CONTENT]: () => setEditing(true),
     [ContentActions.ENDORSE]: async () => {
       await dispatch(editComment(comment.id, { endorsed: !comment.endorsed }, ContentActions.ENDORSE));
@@ -84,10 +96,13 @@ function Comment({
     },
     [ContentActions.DELETE]: showDeleteConfirmation,
     [ContentActions.REPORT]: () => handleAbusedFlag(),
-  };
+  }), [showDeleteConfirmation, dispatch, comment.id, comment.endorsed, comment.threadId, courseId, handleAbusedFlag]);
 
   const handleLoadMoreComments = () => (
-    dispatch(fetchCommentResponses(comment.id, { page: currentPage + 1 }))
+    dispatch(fetchCommentResponses(comment.id, {
+      page: currentPage + 1,
+      reverseOrder: sortedOrder,
+    }))
   );
 
   return (
@@ -119,7 +134,7 @@ function Comment({
           />
         )}
         <EndorsedAlertBanner postType={postType} content={comment} />
-        <div className="d-flex flex-column post-card-comment px-4 pt-3.5 pb-10px" aria-level={5}>
+        <div className="d-flex flex-column post-card-comment px-4 pt-3.5 pb-10px" tabIndex="0">
           <HoverCard
             commentOrPost={comment}
             actionHandlers={actionHandlers}

src/discussions/post-comments/comments/comment/CommentEditor.jsx

@@ -13,6 +13,7 @@ import { TinyMCEEditor } from '../../../../components';
 import FormikErrorFeedback from '../../../../components/FormikErrorFeedback';
 import PostPreviewPane from '../../../../components/PostPreviewPane';
 import { useDispatchWithState } from '../../../../data/hooks';
+import { DiscussionContext } from '../../../common/context';
 import {
   selectModerationSettings,
   selectUserHasModerationPrivileges,
@@ -32,6 +33,7 @@ function CommentEditor({
 }) {
   const editorRef = useRef(null);
   const { authenticatedUser } = useContext(AppContext);
+  const { enableInContextSidebar } = useContext(DiscussionContext);
   const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
   const userIsGroupTa = useSelector(selectUserIsGroupTa);
   const userIsStaff = useSelector(selectUserIsStaff);
@@ -71,7 +73,7 @@ function CommentEditor({
       };
       await dispatch(editComment(comment.id, payload));
     } else {
-      await dispatch(addComment(values.comment, comment.threadId, comment.parentId));
+      await dispatch(addComment(values.comment, comment.threadId, comment.parentId, enableInContextSidebar));
     }
     /* istanbul ignore if: TinyMCE is mocked so this cannot be easily tested */
     if (editorRef.current) {

src/discussions/post-comments/comments/comment/Reply.jsx

@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useCallback, useMemo, useState } from 'react';
 import PropTypes from 'prop-types';
 
 import { useDispatch, useSelector } from 'react-redux';
@@ -31,13 +31,13 @@ function Reply({
   const [isDeleting, showDeleteConfirmation, hideDeleteConfirmation] = useToggle(false);
   const [isReporting, showReportConfirmation, hideReportConfirmation] = useToggle(false);
 
-  const handleAbusedFlag = () => {
+  const handleAbusedFlag = useCallback(() => {
     if (reply.abuseFlagged) {
       dispatch(editComment(reply.id, { flagged: !reply.abuseFlagged }));
     } else {
       showReportConfirmation();
     }
-  };
+  }, [dispatch, reply.abuseFlagged, reply.id, showReportConfirmation]);
 
   const handleDeleteConfirmation = () => {
     dispatch(removeComment(reply.id));
@@ -49,7 +49,7 @@ function Reply({
     hideReportConfirmation();
   };
 
-  const actionHandlers = {
+  const actionHandlers = useMemo(() => ({
     [ContentActions.EDIT_CONTENT]: () => setEditing(true),
     [ContentActions.ENDORSE]: () => dispatch(editComment(
       reply.id,
@@ -58,7 +58,8 @@ function Reply({
     )),
     [ContentActions.DELETE]: showDeleteConfirmation,
     [ContentActions.REPORT]: () => handleAbusedFlag(),
-  };
+  }), [dispatch, handleAbusedFlag, reply.endorsed, reply.id, showDeleteConfirmation]);
+
   const authorAvatars = useSelector(selectAuthorAvatars(reply.author));
   const colorClass = AvatarOutlineAndLabelColors[reply.authorLabel];
   const hasAnyAlert = useAlertBannerVisible(reply);

src/discussions/post-comments/data/api.js

@@ -16,6 +16,8 @@ export const getCommentsApiUrl = () => `${getConfig().LMS_BASE_URL}/api/discussi
  * @param {EndorsementStatus} endorsed
  * @param {number=} page
  * @param {number=} pageSize
+ * @param reverseOrder
+ * @param enableInContextSidebar
  * @returns {Promise<{}>}
  */
 export async function getThreadComments(
@@ -24,6 +26,7 @@ export async function getThreadComments(
     page,
     pageSize,
     reverseOrder,
+    enableInContextSidebar = false,
   } = {},
 ) {
   const params = snakeCaseObject({
@@ -33,6 +36,7 @@ export async function getThreadComments(
     pageSize,
     reverseOrder,
     requestedFields: 'profile_image',
+    enableInContextSidebar,
   });
 
   const { data } = await getAuthenticatedHttpClient()
@@ -51,6 +55,7 @@ export async function getCommentResponses(
   commentId, {
     page,
     pageSize,
+    reverseOrder,
   } = {},
 ) {
   const url = `${getCommentsApiUrl()}${commentId}/`;
@@ -58,6 +63,7 @@ export async function getCommentResponses(
     page,
     pageSize,
     requestedFields: 'profile_image',
+    reverseOrder,
   });
   const { data } = await getAuthenticatedHttpClient()
     .get(url, { params });
@@ -69,11 +75,14 @@ export async function getCommentResponses(
  * @param {string} comment Raw comment data to post.
  * @param {string} threadId Thread ID for thread in which to post comment.
  * @param {string=} parentId ID for a comments parent.
+ * @param {boolean} enableInContextSidebar
  * @returns {Promise<{}>}
  */
-export async function postComment(comment, threadId, parentId = null) {
+export async function postComment(comment, threadId, parentId = null, enableInContextSidebar = false) {
   const { data } = await getAuthenticatedHttpClient()
-    .post(getCommentsApiUrl(), snakeCaseObject({ threadId, raw_body: comment, parentId }));
+    .post(getCommentsApiUrl(), snakeCaseObject({
+      threadId, raw_body: comment, parentId, enableInContextSidebar,
+    }));
   return data;
 }
 

src/discussions/post-comments/data/hooks.js

@@ -1,9 +1,12 @@
-import { useEffect } from 'react';
+import { useContext, useEffect } from 'react';
 
 import { useDispatch, useSelector } from 'react-redux';
 
+import { sendTrackEvent } from '@edx/frontend-platform/analytics';
+
 import { EndorsementStatus } from '../../../data/constants';
 import { useDispatchWithState } from '../../../data/hooks';
+import { DiscussionContext } from '../../common/context';
 import { selectThread } from '../../posts/data/selectors';
 import { markThreadAsRead } from '../../posts/data/thunks';
 import {
@@ -11,6 +14,16 @@ import {
 } from './selectors';
 import { fetchThreadComments } from './thunks';
 
+function trackLoadMoreEvent(postId, params) {
+  sendTrackEvent(
+    'edx.forum.responses.loadMore',
+    {
+      postId,
+      params,
+    },
+  );
+}
+
 export function usePost(postId) {
   const dispatch = useDispatch();
   const thread = useSelector(selectThread(postId));
@@ -30,18 +43,24 @@ export function usePostComments(postId, endorsed = null) {
   const reverseOrder = useSelector(selectCommentSortOrder);
   const hasMorePages = useSelector(selectThreadHasMorePages(postId, endorsed));
   const currentPage = useSelector(selectThreadCurrentPage(postId, endorsed));
+  const { enableInContextSidebar } = useContext(DiscussionContext);
 
-  const handleLoadMoreResponses = async () => dispatch(fetchThreadComments(postId, {
-    endorsed,
-    page: currentPage + 1,
-    reverseOrder,
-  }));
+  const handleLoadMoreResponses = async () => {
+    const params = {
+      endorsed,
+      page: currentPage + 1,
+      reverseOrder,
+    };
+    await dispatch(fetchThreadComments(postId, params));
+    trackLoadMoreEvent(postId, params);
+  };
 
   useEffect(() => {
     dispatch(fetchThreadComments(postId, {
       endorsed,
       page: 1,
       reverseOrder,
+      enableInContextSidebar,
     }));
   }, [postId, reverseOrder]);
 

src/discussions/post-comments/data/slices.js

@@ -22,7 +22,7 @@ const commentsSlice = createSlice({
     postStatus: RequestStatus.SUCCESSFUL,
     pagination: {},
     responsesPagination: {},
-    sortOrder: false,
+    sortOrder: true,
   },
   reducers: {
     fetchCommentsRequest: (state) => {
@@ -75,12 +75,16 @@ const commentsSlice = createSlice({
     },
     fetchCommentResponsesSuccess: (state, { payload }) => {
       state.status = RequestStatus.SUCCESSFUL;
-      state.commentsInComments[payload.commentId] = [
-        ...new Set([
-          ...(state.commentsInComments[payload.commentId] || []),
-          ...(payload.commentsInComments[payload.commentId] || []),
-        ]),
-      ];
+      if (payload.page === 1) {
+        state.commentsInComments[payload.commentId] = payload.commentsInComments[payload.commentId] || [];
+      } else {
+        state.commentsInComments[payload.commentId] = [
+          ...new Set([
+            ...(state.commentsInComments[payload.commentId] || []),
+            ...(payload.commentsInComments[payload.commentId] || []),
+          ]),
+        ];
+      }
       state.commentsById = { ...state.commentsById, ...payload.commentsById };
       state.responsesPagination[payload.commentId] = {
         currentPage: payload.page,

src/discussions/post-comments/data/thunks.js

@@ -80,12 +80,15 @@ export function fetchThreadComments(
     page = 1,
     reverseOrder,
     endorsed = EndorsementStatus.DISCUSSION,
+    enableInContextSidebar,
   } = {},
 ) {
   return async (dispatch) => {
     try {
       dispatch(fetchCommentsRequest());
-      const data = await getThreadComments(threadId, { page, reverseOrder, endorsed });
+      const data = await getThreadComments(threadId, {
+        page, reverseOrder, endorsed, enableInContextSidebar,
+      });
       dispatch(fetchCommentsSuccess({
         ...normaliseComments(camelCaseObject(data)),
         endorsed,
@@ -103,11 +106,11 @@ export function fetchThreadComments(
   };
 }
 
-export function fetchCommentResponses(commentId, { page = 1 } = {}) {
+export function fetchCommentResponses(commentId, { page = 1, reverseOrder = true } = {}) {
   return async (dispatch) => {
     try {
       dispatch(fetchCommentResponsesRequest({ commentId }));
-      const data = await getCommentResponses(commentId, { page });
+      const data = await getCommentResponses(commentId, { page, reverseOrder });
       dispatch(fetchCommentResponsesSuccess({
         ...normaliseComments(camelCaseObject(data)),
         page,
@@ -144,7 +147,7 @@ export function editComment(commentId, comment, action = null) {
   };
 }
 
-export function addComment(comment, threadId, parentId = null) {
+export function addComment(comment, threadId, parentId = null, enableInContextSidebar = false) {
   return async (dispatch) => {
     try {
       dispatch(postCommentRequest({
@@ -152,7 +155,7 @@ export function addComment(comment, threadId, parentId = null) {
         threadId,
         parentId,
       }));
-      const data = await postComment(comment, threadId, parentId);
+      const data = await postComment(comment, threadId, parentId, enableInContextSidebar);
       dispatch(postCommentSuccess(camelCaseObject(data)));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {

src/discussions/posts/PostsView.test.jsx

@@ -160,9 +160,9 @@ describe('PostsView', () => {
     test('displays a list of posts in a topic', async () => {
       setupStore();
       await act(async () => {
-        await renderComponent({ topicId: 'some-topic-1' });
+        await renderComponent({ topicId: 'test-topic-1' });
       });
-      expect(screen.getAllByText(/this is thread-\d+ in topic some-topic-1/i)).toHaveLength(Math.ceil(threadCount / 3));
+      expect(screen.getAllByText(/this is thread-\d+ in topic test-topic-1/i)).toHaveLength(Math.ceil(threadCount / 3));
     });
 
     test.each([true, false])(
@@ -173,10 +173,10 @@ describe('PostsView', () => {
             blocks: {
               'test-usage-key': {
                 type: 'vertical',
-                topics: ['some-topic-2', 'some-topic-0'],
+                topics: ['test-topic-2', 'test-topic-0'],
                 parent: 'test-seq-key',
               },
-              'test-seq-key': { type: 'sequential', topics: ['some-topic-0', 'some-topic-1', 'some-topic-2'] },
+              'test-seq-key': { type: 'sequential', topics: ['test-topic-0', 'test-topic-1', 'test-topic-2'] },
             },
           },
           config: { groupAtSubsection: grouping, hasModerationPrivileges: true, provider: 'openedx' },
@@ -185,12 +185,12 @@ describe('PostsView', () => {
           await renderComponent({ category: 'test-usage-key', enableInContextSidebar: true, p: true });
         });
         const topicThreadCount = Math.ceil(threadCount / 3);
-        expect(screen.queryAllByText(/this is thread-\d+ in topic some-topic-2/i))
+        expect(screen.queryAllByText(/this is thread-\d+ in topic test-topic-2/i))
           .toHaveLength(topicThreadCount);
-        expect(screen.queryAllByText(/this is thread-\d+ in topic some-topic-0/i))
+        expect(screen.queryAllByText(/this is thread-\d+ in topic test-topic-0/i))
           .toHaveLength(topicThreadCount);
         // When grouping is enabled, topic 1 will be shown, but not otherwise.
-        expect(screen.queryAllByText(/this is thread-\d+ in topic some-topic-1/i))
+        expect(screen.queryAllByText(/this is thread-\d+ in topic test-topic-1/i))
           .toHaveLength(grouping ? topicThreadCount : 2);
       },
     );

src/discussions/posts/data/__factories__/threads.factory.js

@@ -7,7 +7,7 @@ Factory.define('thread')
   .sequence('rendered_body', (idx) => `Some contents for <b>thread number ${idx}</b>.`)
   .sequence('type', (idx) => (idx % 2 === 1 ? 'discussion' : 'question'))
   .sequence('pinned', idx => (idx < 3))
-  .sequence('topic_id', idx => `some-topic-${(idx % 3)}`)
+  .sequence('topic_id', idx => `test-topic-${(idx % 3)}`)
   .sequence('closed', idx => Boolean(idx % 3 === 2)) // Mark every 3rd post closed
   .attr('comment_list_url', ['id'], (threadId) => `http://test.site/api/discussion/v1/comments/?thread_id=${threadId}`)
   .attrs({

src/discussions/posts/data/api.js

@@ -87,6 +87,7 @@ export async function getThread(threadId, courseId) {
  * @param {boolean} following Follow the thread after creating
  * @param {boolean} anonymous Should the thread be anonymous to all users
  * @param {boolean} anonymousToPeers Should the thread be anonymous to peers
+ * @param {boolean} enableInContextSidebar
  * @returns {Promise<{}>}
  */
 export async function postThread(
@@ -101,6 +102,7 @@ export async function postThread(
     anonymous,
     anonymousToPeers,
   } = {},
+  enableInContextSidebar = false,
 ) {
   const postData = snakeCaseObject({
     courseId,
@@ -112,8 +114,8 @@ export async function postThread(
     anonymous,
     anonymousToPeers,
     groupId: cohort,
+    enableInContextSidebar,
   });
-
   const { data } = await getAuthenticatedHttpClient()
     .post(getThreadsApiUrl(), postData);
   return data;

src/discussions/posts/data/redux.test.js

@@ -102,7 +102,7 @@ describe('Threads/Posts data layer tests', () => {
     expect(store.getState().threads.threadsById['thread-1'])
       .toHaveProperty('topicId');
     expect(store.getState().threads.threadsById['thread-1'].topicId)
-      .toEqual('some-topic-1');
+      .toEqual('test-topic-1');
   });
 
   test('successfully handles thread creation', async () => {

src/discussions/posts/data/thunks.js

@@ -204,6 +204,7 @@ export function createNewThread({
   anonymous,
   anonymousToPeers,
   cohort,
+  enableInContextSidebar,
 }) {
   return async (dispatch) => {
     try {
@@ -223,7 +224,7 @@ export function createNewThread({
         following,
         anonymous,
         anonymousToPeers,
-      });
+      }, enableInContextSidebar);
       dispatch(postThreadSuccess(camelCaseObject(data)));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {

src/discussions/posts/post-editor/PostEditor.jsx

@@ -106,7 +106,7 @@ function PostEditor({
   const nonCoursewareIds = useSelector(enableInContext ? inContextCoursewareIds : selectNonCoursewareIds);
   const coursewareTopics = useSelector(enableInContext ? inContextCourseware : selectCoursewareTopics);
   const cohorts = useSelector(selectCourseCohorts);
-  const post = useSelector(selectThread(postId));
+  const post = useSelector(editExisting ? selectThread(postId) : () => ({}));
   const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
   const userIsGroupTa = useSelector(selectUserIsGroupTa);
   const settings = useSelector(selectDivisionSettings);
@@ -187,6 +187,7 @@ function PostEditor({
         anonymous: allowAnonymous ? values.anonymous : undefined,
         anonymousToPeers: allowAnonymousToPeers ? values.anonymousToPeers : undefined,
         cohort,
+        enableInContextSidebar,
       }));
     }
     /* istanbul ignore if: TinyMCE is mocked so this cannot be easily tested */

src/discussions/posts/post-editor/PostEditor.test.jsx

@@ -141,6 +141,16 @@ describe('PostEditor', () => {
         }
       },
     );
+    test('selectThread is not called while creating a new post', async () => {
+      const mockSelectThread = jest.fn();
+      jest.mock('../data/selectors', () => ({
+        selectThread: mockSelectThread,
+      }));
+      await renderComponent();
+      expect(mockSelectThread)
+        .not
+        .toHaveBeenCalled();
+    });
   });
 
   describe('cohorting', () => {

src/discussions/posts/post/Post.jsx

@@ -1,10 +1,11 @@
-import React, { useContext } from 'react';
+import React, { useCallback, useContext, useMemo } from 'react';
 import PropTypes from 'prop-types';
 
 import classNames from 'classnames';
 import { useDispatch, useSelector } from 'react-redux';
 import { useHistory, useLocation } from 'react-router-dom';
 
+import { getConfig } from '@edx/frontend-platform';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Hyperlink, useToggle } from '@edx/paragon';
 
@@ -41,13 +42,14 @@ function Post({
   const [isDeleting, showDeleteConfirmation, hideDeleteConfirmation] = useToggle(false);
   const [isReporting, showReportConfirmation, hideReportConfirmation] = useToggle(false);
   const [isClosing, showClosePostModal, hideClosePostModal] = useToggle(false);
-  const handleAbusedFlag = () => {
+
+  const handleAbusedFlag = useCallback(() => {
     if (post.abuseFlagged) {
       dispatch(updateExistingThread(post.id, { flagged: !post.abuseFlagged }));
     } else {
       showReportConfirmation();
     }
-  };
+  }, [dispatch, post.abuseFlagged, post.id, showReportConfirmation]);
 
   const handleDeleteConfirmation = async () => {
     await dispatch(removeThread(post.id));
@@ -63,7 +65,7 @@ function Post({
     hideReportConfirmation();
   };
 
-  const actionHandlers = {
+  const actionHandlers = useMemo(() => ({
     [ContentActions.EDIT_CONTENT]: () => history.push({
       ...location,
       pathname: `${location.pathname}/edit`,
@@ -81,17 +83,34 @@ function Post({
     [ContentActions.COPY_LINK]: () => { navigator.clipboard.writeText(`${window.location.origin}/${courseId}/posts/${post.id}`); },
     [ContentActions.PIN]: () => dispatch(updateExistingThread(post.id, { pinned: !post.pinned })),
     [ContentActions.REPORT]: () => handleAbusedFlag(),
-  };
+  }), [
+    showDeleteConfirmation,
+    history,
+    location,
+    post.closed,
+    post.id,
+    post.pinned,
+    reasonCodesEnabled,
+    dispatch,
+    showClosePostModal,
+    courseId,
+    handleAbusedFlag,
+  ]);
 
   const getTopicCategoryName = topicData => (
     topicData.usageKey ? getTopicSubsection(topicData.usageKey)?.displayName : topicData.categoryId
   );
 
+  const getTopicInfo = topicData => (
+    getTopicCategoryName(topicData) ? `${getTopicCategoryName(topicData)} / ${topicData.name}` : `${topicData.name}`
+  );
+
   return (
     <div
       className="d-flex flex-column w-100 mw-100 post-card-comment"
-      aria-level={5}
       data-testid={`post-${post.id}`}
+      // eslint-disable-next-line jsx-a11y/no-noninteractive-tabindex
+      tabIndex="0"
     >
       <Confirmation
         isOpen={isDeleting}
@@ -126,7 +145,7 @@ function Post({
       <div className="d-flex mt-14px text-break font-style text-primary-500">
         <HTMLLoader htmlNode={post.renderedBody} componentId="post" cssClassName="html-loader" testId={post.id} />
       </div>
-      {topicContext && (
+      {(topicContext || topic) && (
         <div
           className={classNames('mt-14px mb-1 font-style font-size-12',
             { 'w-100': enableInContextSidebar })}
@@ -134,7 +153,7 @@ function Post({
         >
           <span className="text-gray-500" style={{ lineHeight: '20px' }}>{intl.formatMessage(messages.relatedTo)}{' '}</span>
           <Hyperlink
-            destination={topicContext.unitLink}
+            destination={topicContext ? topicContext.unitLink : `${getConfig().BASE_URL}/${courseId}/topics/${post.topicId}`}
             target="_top"
           >
             {(topicContext && !topic)
@@ -147,7 +166,7 @@ function Post({
                   <span className="w-auto">{topicContext.unitName}</span>
                 </>
               )
-              : `${getTopicCategoryName(topic)} / ${topic.name}`}
+              : getTopicInfo(topic)}
           </Hyperlink>
         </div>
       )}

src/discussions/tours/constants.js

@@ -10,5 +10,13 @@ export default function tourCheckpoints(intl) {
         title: intl.formatMessage(messages.notRespondedFilterTourTitle),
       },
     ],
+    RESPONSE_SORT: [
+      {
+        body: intl.formatMessage(messages.responseSortTourBody),
+        placement: 'left',
+        target: '#comment-sort',
+        title: intl.formatMessage(messages.responseSortTourTitle),
+      },
+    ],
   };
 }

src/discussions/tours/data/redux.test.js

@@ -5,29 +5,25 @@ import { initializeMockApp } from '@edx/frontend-platform/testing';
 
 import { RequestStatus } from '../../../data/constants';
 import { initializeStore } from '../../../store';
+import { executeThunk } from '../../../test-utils';
 import { getDiscussionTourUrl } from './api';
 import { selectTours } from './selectors';
 import {
   discussionsTourRequest,
   discussionsToursRequestError,
   fetchUserDiscussionsToursSuccess,
-  toursReducer,
+  updateUserDiscussionsTourByName,
   updateUserDiscussionsTourSuccess,
 } from './slices';
 import { fetchDiscussionTours, updateTourShowStatus } from './thunks';
 import discussionTourFactory from './tours.factory';
 
-let mockAxios;
-// eslint-disable-next-line no-unused-vars
-let store;
 const url = getDiscussionTourUrl();
-describe('DiscussionToursThunk', () => {
-  let actualActions;
-
-  const dispatch = (action) => {
-    actualActions.push(action);
-  };
+let actualActions;
+let mockAxios;
+let store;
 
+describe('DiscussionTours data layer', () => {
   beforeEach(() => {
     initializeMockApp({
       authenticatedUser: {
@@ -46,168 +42,147 @@ describe('DiscussionToursThunk', () => {
     mockAxios.reset();
   });
 
-  it('dispatches get request, success actions', async () => {
-    const mockData = discussionTourFactory.buildList(2);
-    mockAxios.onGet(url)
-      .reply(200, mockData);
+  describe('DiscussionToursThunk', () => {
+    const dispatch = (action) => {
+      actualActions.push(action);
+    };
 
-    const expectedActions = [
-      {
+    const getExpectedAction = (mockData) => ({
+      request: {
         payload: undefined,
         type: 'userDiscussionsTours/discussionsTourRequest',
       },
-      {
+      fetch: {
         type: 'userDiscussionsTours/fetchUserDiscussionsToursSuccess',
         payload: mockData,
       },
-    ];
-    await fetchDiscussionTours()(dispatch);
-    expect(actualActions)
-      .toEqual(expectedActions);
-  });
-
-  it('dispatches request, and error actions', async () => {
-    mockAxios.onGet('/api/discussion-tours/')
-      .reply(500);
-    const errorAction = [{
-      payload: undefined,
-      type: 'userDiscussionsTours/discussionsTourRequest',
-    }, {
-      payload: undefined,
-      type: 'userDiscussionsTours/discussionsToursRequestError',
-    }];
-
-    await fetchDiscussionTours()(dispatch);
-    expect(actualActions)
-      .toEqual(errorAction);
-  });
-
-  it('dispatches put request, success actions', async () => {
-    const mockData = discussionTourFactory.build();
-    mockAxios.onPut(`${url}${1}`)
-      .reply(200, mockData);
-
-    const expectedActions = [
-      {
-        payload: undefined,
-        type: 'userDiscussionsTours/discussionsTourRequest',
-      },
-      {
+      update: {
         type: 'userDiscussionsTours/updateUserDiscussionsTourSuccess',
         payload: mockData,
       },
-    ];
-    await updateTourShowStatus(1)(dispatch);
-    expect(actualActions)
-      .toEqual(expectedActions);
+      error: {
+        payload: undefined,
+        type: 'userDiscussionsTours/discussionsToursRequestError',
+      },
+    });
+
+    it('dispatches get request, success actions', async () => {
+      const mockData = discussionTourFactory.buildList(2);
+      mockAxios.onGet(url).reply(200, mockData);
+      const expectedActions = [getExpectedAction().request, getExpectedAction(mockData).fetch];
+
+      await fetchDiscussionTours()(dispatch);
+      expect(actualActions).toEqual(expectedActions);
+    });
+
+    it('dispatches request, and error actions', async () => {
+      mockAxios.onGet('/api/discussion-tours/').reply(500);
+      const expectedActions = [getExpectedAction().request, getExpectedAction().error];
+
+      await fetchDiscussionTours()(dispatch);
+      expect(actualActions).toEqual(expectedActions);
+    });
+
+    it('dispatches put request, success actions', async () => {
+      const mockData = discussionTourFactory.build();
+      mockAxios.onPut(`${url}${1}`).reply(200, mockData);
+      const expectedActions = [getExpectedAction().request, getExpectedAction(mockData).update];
+
+      await updateTourShowStatus(1)(dispatch);
+      expect(actualActions).toEqual(expectedActions);
+    });
+
+    it('dispatches update request, and error actions', async () => {
+      mockAxios.onPut(`${url}${1}`).reply(500);
+      const expectedActions = [getExpectedAction().request, getExpectedAction().error];
+
+      await updateTourShowStatus(1)(dispatch);
+      expect(actualActions).toEqual(expectedActions);
+    });
   });
 
-  it('dispatches update request, and error actions', async () => {
-    mockAxios.onPut(`${url}${1}`)
-      .reply(500);
-    const errorAction = [{
-      payload: undefined,
-      type: 'userDiscussionsTours/discussionsTourRequest',
-    }, {
-      payload: undefined,
-      type: 'userDiscussionsTours/discussionsToursRequestError',
-    }];
+  describe('toursReducer', () => {
+    it('handles the discussionsToursRequest action', async () => {
+      store.dispatch(discussionsTourRequest());
+      const { tours } = store.getState();
 
-    await updateTourShowStatus(1)(dispatch);
-    expect(actualActions)
-      .toEqual(errorAction);
-  });
-});
+      expect(tours.tours).toEqual([]);
+      expect(tours.error).toBeNull();
+      expect(tours.loading).toEqual(RequestStatus.IN_PROGRESS);
+    });
 
-describe('toursReducer', () => {
-  it('handles the discussionsToursRequest action', () => {
-    const initialState = {
-      tours: [],
-      loading: false,
-      error: null,
-    };
-    const state = toursReducer(initialState, discussionsTourRequest());
-    expect(state)
-      .toEqual({
-        tours: [],
-        loading: RequestStatus.IN_PROGRESS,
-        error: null,
-      });
-  });
+    it('handles the fetchUserDiscussionsToursSuccess action', async () => {
+      const mockData = [{ id: 1 }, { id: 2 }];
+      await store.dispatch(fetchUserDiscussionsToursSuccess(mockData));
+      const { tours } = store.getState();
 
-  it('handles the fetchUserDiscussionsToursSuccess action', () => {
-    const initialState = {
-      tours: [],
-      loading: true,
-      error: null,
-    };
-    const mockData = [{ id: 1 }, { id: 2 }];
-    const state = toursReducer(initialState, fetchUserDiscussionsToursSuccess(mockData));
-    expect(state)
-      .toEqual({
+      expect(tours).toEqual({
         tours: mockData,
         loading: RequestStatus.SUCCESSFUL,
         error: null,
       });
-  });
+    });
 
-  it('handles the updateUserDiscussionsTourSuccess action', () => {
-    const initialState = {
-      tours: [
-        { id: 1 },
-        { id: 2 },
-      ],
-    };
-    const updatedTour = {
-      id: 2,
-      name: 'Updated Tour',
-    };
-    const state = toursReducer(initialState, updateUserDiscussionsTourSuccess(updatedTour));
-    expect(state.tours)
-      .toEqual([{ id: 1 }, updatedTour]);
-  });
+    it('handles the updateUserDiscussionsTourSuccess action', async () => {
+      const updatedTour = { id: 2, name: 'Updated Tour' };
+      await store.dispatch(fetchUserDiscussionsToursSuccess([{ id: 1 }, { id: 2 }]));
+      await store.dispatch(updateUserDiscussionsTourSuccess(updatedTour));
+      const { tours } = store.getState();
 
-  it('handles the discussionsToursRequestError action', () => {
-    const initialState = {
-      tours: [],
-      loading: true,
-      error: null,
-    };
-    const mockError = new Error('Something went wrong');
-    const state = toursReducer(initialState, discussionsToursRequestError(mockError));
-    expect(state)
-      .toEqual({
+      expect(tours.tours).toEqual([{ id: 1 }, updatedTour]);
+    });
+
+    it('handles the discussionsToursRequestError action', async () => {
+      const errorMessage = 'Something went wrong';
+      await store.dispatch(discussionsToursRequestError(errorMessage));
+      const { tours } = store.getState();
+
+      expect(tours).toEqual({
         tours: [],
         loading: RequestStatus.FAILED,
-        error: mockError,
+        error: errorMessage,
       });
-  });
-});
+    });
 
-describe('tourSelector', () => {
-  it('returns the tours list from state', () => {
-    const state = {
-      tours: {
-        tours: [
-          { id: 1, tourName: 'not_responded_filter' },
-          { id: 2, tourName: 'other_filter' },
-        ],
-      },
-    };
-    const expectedResult = [
-      { id: 1, tourName: 'not_responded_filter' },
-      { id: 2, tourName: 'other_filter' },
-    ];
-    expect(selectTours(state)).toEqual(expectedResult);
+    it('handles the updateUserDiscussionsTourByName action', async () => {
+      const tourName = 'response_sort';
+      const updatedTour = {
+        tourName: 'response_sort',
+        enabled: false,
+      };
+
+      await mockAxios.onGet(getDiscussionTourUrl(), {}).reply(200, [discussionTourFactory.build({ tourName })]);
+      await executeThunk(fetchDiscussionTours(), store.dispatch, store.getState);
+      store.dispatch(updateUserDiscussionsTourByName(updatedTour));
+
+      expect(store.getState().tours.tours).toEqual([{
+        id: 4,
+        tourName: 'response_sort',
+        enabled: false,
+        description: 'This is the description for Discussion Tour 4.',
+      }]);
+    });
   });
 
-  it('returns an empty list if the tours state is not defined', () => {
-    const state = {
-      tours: {
-        tours: [],
-      },
-    };
-    expect(selectTours(state))
-      .toEqual([]);
+  describe('tourSelector', () => {
+    it('returns the tours list from state', async () => {
+      await mockAxios.onGet(getDiscussionTourUrl(), {}).reply(200, [
+        discussionTourFactory.build({ tourName: 'other_filter' }),
+      ]);
+      await executeThunk(fetchDiscussionTours(), store.dispatch, store.getState);
+
+      expect(selectTours(store.getState())).toEqual([{
+        id: 5,
+        tourName: 'other_filter',
+        description: 'This is the description for Discussion Tour 5.',
+        enabled: true,
+      }]);
+    });
+
+    it('returns an empty list if the tours state is not defined', async () => {
+      await executeThunk(fetchDiscussionTours(), store.dispatch, store.getState);
+
+      expect(selectTours(store.getState())).toEqual([]);
+    });
   });
 });

src/discussions/tours/data/slices.js

@@ -31,6 +31,12 @@ const userDiscussionsToursSlice = createSlice({
       state.loading = RequestStatus.SUCCESSFUL;
       state.error = null;
     },
+    updateUserDiscussionsTourByName: (state, action) => {
+      const tourIndex = state.tours.findIndex(tour => tour.tourName === action.payload.tourName);
+      state.tours[tourIndex] = { ...state.tours[tourIndex], ...action.payload };
+      state.loading = RequestStatus.SUCCESSFUL;
+      state.error = null;
+    },
   },
 });
 
@@ -39,6 +45,7 @@ export const {
   fetchUserDiscussionsToursSuccess,
   discussionsToursRequestError,
   updateUserDiscussionsTourSuccess,
+  updateUserDiscussionsTourByName,
 } = userDiscussionsToursSlice.actions;
 
 export const toursReducer = userDiscussionsToursSlice.reducer;

src/discussions/tours/data/thunks.js

@@ -9,6 +9,10 @@ import {
   updateUserDiscussionsTourSuccess,
 } from './slices';
 
+function normaliseTourData(data) {
+  return data.map(tour => ({ ...tour, enabled: true }));
+}
+
 /**
  * Action thunk to fetch the list of discussion tours for the current user.
  * @returns {function} - Thunk that dispatches the request, success, and error actions.
@@ -18,7 +22,7 @@ export function fetchDiscussionTours() {
     try {
       dispatch(discussionsTourRequest());
       const data = await getDiscssionTours();
-      dispatch(fetchUserDiscussionsToursSuccess(camelCaseObject(data)));
+      dispatch(fetchUserDiscussionsToursSuccess(camelCaseObject(normaliseTourData(data))));
     } catch (error) {
       dispatch(discussionsToursRequestError());
       logError(error);

src/discussions/tours/data/tours.factory.js

@@ -2,7 +2,8 @@ import { Factory } from 'rosie';
 
 const discussionTourFactory = new Factory()
   .sequence('id')
-  .attr('name', ['id'], (id) => `Discussion Tour ${id}`)
-  .attr('description', ['id'], (id) => `This is the description for Discussion Tour ${id}.`);
+  .attr('tourName', ['id'], (id) => `Discussion Tour ${id}`)
+  .attr('description', ['id'], (id) => `This is the description for Discussion Tour ${id}.`)
+  .attr('enabled', ['id'], true);
 
 export default discussionTourFactory;

src/discussions/tours/messages.js

@@ -26,6 +26,16 @@ const messages = defineMessages({
     defaultMessage: 'New filtering option!',
     description: 'Title of the tour for the not responded filter',
   },
+  responseSortTourBody: {
+    id: 'tour.body.responseSortTour',
+    defaultMessage: 'Responses and comments are now sorted by newest first. Please use this option to change the sort order',
+    description: 'Body of the tour for the response sort',
+  },
+  responseSortTourTitle: {
+    id: 'tour.title.responseSortTour',
+    defaultMessage: 'Sort Responses!',
+    description: 'Title of the tour for the response sort',
+  },
 });
 
 export default messages;

src/i18n/messages/ar.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Dismiss",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Now you can filter discussions to find posts with no response.",
-  "tour.title.notRespondedFilter": "New filtering option!"
+  "tour.title.notRespondedFilter": "New filtering option!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/de_DE.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Abgewiesen",
   "tour.action.end": "okay",
   "tour.body.notRespondedFilter": "Jetzt können Sie Diskussionen filtern, um Beiträge ohne Antwort zu finden.",
-  "tour.title.notRespondedFilter": "Neue Filteroption!"
+  "tour.title.notRespondedFilter": "Neue Filteroption!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/es_419.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Descartar",
   "tour.action.end": "Okey",
   "tour.body.notRespondedFilter": "Ahora puede filtrar debates para encontrar publicaciones sin respuesta.",
-  "tour.title.notRespondedFilter": "¡Nueva opción de filtrado!"
+  "tour.title.notRespondedFilter": "¡Nueva opción de filtrado!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/fr.json

@@ -1,61 +1,61 @@
 {
-  "navigation.course.tabs.label": "Course Material",
+  "navigation.course.tabs.label": "Matériel de cours",
   "learn.course.tabs.navigation.overflow.menu": "Plus...",
-  "discussions.topics.backAlt": "Back to topics list",
+  "discussions.topics.backAlt": "Retour à la liste des sujets",
   "discussions.topics.discussions": "{count, plural,\n      =0 {Discussion}\n      one {# Discussion}\n      other {# Discussions}\n    }",
   "discussions.topics.questions": "{count, plural,\n      =0 {Question}\n      one {# Question}\n      other {# Questions}\n    }",
-  "discussions.topics.reported": "{reported} reported",
-  "discussions.topics.previouslyReported": "{previouslyReported} previously reported",
-  "discussions.topics.find.label": "Search topics",
-  "discussions.topics.unnamed.section.label": "Unnamed Section",
-  "discussions.topics.unnamed.subsection.label": "Unnamed Subsection",
-  "discussions.subtopics.unnamed.topic.label": "Unnamed Topic",
-  "discussions.topics.title": "No topic exists",
-  "discussions.topics.createTopic": "Please contact you admin to create a topic",
+  "discussions.topics.reported": "{reported} signalé",
+  "discussions.topics.previouslyReported": "{previouslyReported} signalé précédemment",
+  "discussions.topics.find.label": "Rechercher des sujets",
+  "discussions.topics.unnamed.section.label": "Section sans nom",
+  "discussions.topics.unnamed.subsection.label": "Sous-section sans nom",
+  "discussions.subtopics.unnamed.topic.label": "Sujet sans nom",
+  "discussions.topics.title": "Aucun sujet n'existe",
+  "discussions.topics.createTopic": "Veuillez contacter votre administrateur pour créer un sujet",
   "discussions.topics.nothing": "Nothing here yet",
-  "discussions.topics.archived.label": "Archived",
+  "discussions.topics.archived.label": "Archivé",
   "discussions.learner.reported": "{reported} signalé",
-  "discussions.learner.previouslyReported": "{previouslyReported} previously reported",
-  "discussions.learner.lastLogin": "Last active {lastActiveTime}",
+  "discussions.learner.previouslyReported": "{previouslyReported} signalé précédemment",
+  "discussions.learner.lastLogin": "Dernier actif {lastActiveTime}",
   "discussions.learner.loadMostLearners": "Charger plus",
   "discussions.learner.back": "Retour",
   "discussions.learner.activityForLearner": "Activité pour {username}",
-  "discussions.learner.mostActivity": "Most activity",
-  "discussions.learner.reportedActivity": "Reported activity",
-  "discussions.learner.recentActivity": "Recent activity",
+  "discussions.learner.mostActivity": "La plupart des activités",
+  "discussions.learner.reportedActivity": "Activité signalée",
+  "discussions.learner.recentActivity": "Activité récente",
   "discussions.learner.sortFilterStatus": "All learners sorted by {sort, select,\n      flagged {reported activity}\n      activity {most activity}\n      other {{sort}}\n    }",
-  "discussion.learner.allActivity": "All activity",
+  "discussion.learner.allActivity": "Toutes les activités",
   "discussion.learner.posts": "Posts",
-  "discussions.actions.button.alt": "Actions menu",
-  "discussions.actions.copylink": "Copy link",
+  "discussions.actions.button.alt": "Menu Actions",
+  "discussions.actions.copylink": "Copier le lien",
   "discussions.actions.edit": "Modifier",
   "discussions.actions.pin": "Épingler",
-  "discussions.actions.unpin": "Unpin",
-  "discussions.actions.delete": "Delete",
-  "discussions.confirmation.button.confirm": "Confirm",
-  "discussions.actions.close": "Close",
-  "discussions.actions.reopen": "Reopen",
+  "discussions.actions.unpin": "Ne plus épingler",
+  "discussions.actions.delete": "Supprimer",
+  "discussions.confirmation.button.confirm": "Confirmer",
+  "discussions.actions.close": "Fermer",
+  "discussions.actions.reopen": "Réouvrir",
   "discussions.actions.report": "Report",
   "discussions.actions.unreport": "Unreport",
-  "discussions.actions.endorse": "Endorse",
-  "discussions.actions.unendorse": "Unendorse",
-  "discussions.actions.markAnswered": "Mark as answered",
+  "discussions.actions.endorse": "Approuver",
+  "discussions.actions.unendorse": "Ne plus approuver",
+  "discussions.actions.markAnswered": "Marquer comme répondu",
   "discussions.actions.unMarkAnswered": "Unmark as answered",
-  "discussions.modal.confirmation.button.cancel": "Cancel",
+  "discussions.modal.confirmation.button.cancel": "Annuler",
   "discussions.empty.allTopics": "All discussion activity for these topics will show up here.",
   "discussions.empty.allPosts": "All discussion activity for your course will show up here.",
   "discussions.empty.myPosts": "Posts you've interacted with will show up here.",
   "discussions.empty.topic": "All discussion activity for this topic will show up here.",
-  "discussions.empty.title": "Nothing here yet",
+  "discussions.empty.title": "Rien ici encore",
   "discussions.empty.noPostSelected": "No post selected",
-  "discussions.empty.noTopicSelected": "No topic selected",
-  "discussions.sidebar.noResultsFound": "No results found",
+  "discussions.empty.noTopicSelected": "Aucun sujet sélectionné",
+  "discussions.sidebar.noResultsFound": "Aucun résultat trouvé",
   "discussions.sidebar.differentKeywords": "Try searching different keywords",
   "discussions.sidebar.removeKeywords": "Try searching different keywords or removing some filters",
   "discussions.sidebar.removeKeywordsOnly": "Try searching different keywords",
   "discussions.sidebar.removeFilters": "Try removing some filters",
-  "discussions.empty.iconAlt": "Empty",
-  "discussions.authors.label.staff": "Staff",
+  "discussions.empty.iconAlt": "Vide",
+  "discussions.authors.label.staff": "Équipe",
   "discussions.authors.label.ta": "TA",
   "discussions.learner.loadMostPosts": "Load more posts",
   "discussions.post.anonymous.author": "anonymous",
@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Dismiss",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Now you can filter discussions to find posts with no response.",
-  "tour.title.notRespondedFilter": "New filtering option!"
+  "tour.title.notRespondedFilter": "New filtering option!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/fr_CA.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Rejeter",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Vous pouvez maintenant filtrer les discussions pour trouver les messages sans réponse.",
-  "tour.title.notRespondedFilter": "Nouvelle option de filtrage!"
+  "tour.title.notRespondedFilter": "Nouvelle option de filtrage!",
+  "tour.body.responseSortTour": "Les réponses et les commentaires sont désormais triés par les plus récents en premier. Veuillez utiliser cette option pour modifier l'ordre de tri",
+  "tour.title.responseSortTour": "Triez les réponses !"
 }

src/i18n/messages/fr_FR.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Dismiss",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Now you can filter discussions to find posts with no response.",
-  "tour.title.notRespondedFilter": "New filtering option!"
+  "tour.title.notRespondedFilter": "New filtering option!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/it_IT.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Dismiss",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Now you can filter discussions to find posts with no response.",
-  "tour.title.notRespondedFilter": "New filtering option!"
+  "tour.title.notRespondedFilter": "New filtering option!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/pl.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Dismiss",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Now you can filter discussions to find posts with no response.",
-  "tour.title.notRespondedFilter": "New filtering option!"
+  "tour.title.notRespondedFilter": "New filtering option!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/tr_TR.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "İptal",
   "tour.action.end": "Tamam",
   "tour.body.notRespondedFilter": "Artık yanıt vermeyen iletileri bulmak için tartışmaları filtreleyebilirsiniz.",
-  "tour.title.notRespondedFilter": "Yeni filtreleme seçeneği!"
+  "tour.title.notRespondedFilter": "Yeni filtreleme seçeneği!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/i18n/messages/zh_CN.json

@@ -208,5 +208,7 @@
   "tour.action.dismiss": "Dismiss",
   "tour.action.end": "Okay",
   "tour.body.notRespondedFilter": "Now you can filter discussions to find posts with no response.",
-  "tour.title.notRespondedFilter": "New filtering option!"
+  "tour.title.notRespondedFilter": "New filtering option!",
+  "tour.body.responseSortTour": "Responses and comments are now sorted by newest first. Please use this option to change the sort order",
+  "tour.title.responseSortTour": "Sort Responses!"
 }

src/index.scss

@@ -433,7 +433,7 @@ header {
   pointer-events: none;
 }
 
-.on-focus:focus-visible {
+.on-focus:focus-within {
   outline: 2px solid black;
 }
 
@@ -442,6 +442,8 @@ header {
 }
 
 .post-card-comment {
+  outline: none;
+
   &:not(:hover),
   &:not(:focus) {
     .hover-card {
@@ -450,7 +452,7 @@ header {
   }
 
   &:hover,
-  &:focus {
+  &:focus-within {
     .hover-card {
       display: flex;
     }

src/test-utils.js

@@ -1,4 +1,5 @@
 /* eslint-disable import/prefer-default-export */
+
 export const executeThunk = async (thunk, dispatch, getState) => {
   await thunk(dispatch, getState);
   await new Promise(setImmediate);