fix: removes outline around comment cards

* feat: added support for dual feedback forms

* fix: resolved linter errors

public/index.html

@@ -180,10 +180,7 @@
           var r = (window.lightningjs = t(e));
           (r.require = t), (r.modules = n);
         })({});
-      window.usabilla_live = lightningjs.require(
-        "usabilla_live",
-        "//w.usabilla.com/9e6036348fa1.js"
-      );
+
     </script>
     <!-- end usabilla live embed code -->
   </body>

src/components/HTMLLoader.jsx

@@ -16,27 +16,32 @@ function HTMLLoader({
   htmlNode, componentId, cssClassName, testId, delay,
 }) {
   const sanitizedMath = DOMPurify.sanitize(htmlNode, { ...defaultSanitizeOptions });
-  const previewRef = useRef();
-
+  const previewRef = useRef(null);
   const debouncedPostContent = useDebounce(htmlNode, delay);
 
   useEffect(() => {
     let promise = Promise.resolve(); // Used to hold chain of typesetting calls
+
     function typeset(code) {
-      promise = promise.then(() => window.MathJax?.typesetPromise(code()))
+      promise = promise.then(() => {
+        if (typeof window?.MathJax !== 'undefined') { return window.MathJax?.typesetPromise(code()); }
+        return null;
+      })
         .catch((err) => logError(`Typeset failed: ${err.message}`));
       return promise;
     }
+
     if (debouncedPostContent) {
       typeset(() => {
-        previewRef.current.innerHTML = sanitizedMath;
+        if (previewRef.current !== null && typeof window?.MathJax !== 'undefined') {
+          previewRef.current.innerHTML = sanitizedMath;
+        }
       });
     }
   }, [debouncedPostContent]);
 
   return (
     <div ref={previewRef} className={cssClassName} id={componentId} data-testid={testId} />
-
   );
 }
 

src/components/PostPreviewPanel.jsx

@@ -8,7 +8,7 @@ import { Close } from '@edx/paragon/icons';
 import messages from '../discussions/posts/post-editor/messages';
 import HTMLLoader from './HTMLLoader';
 
-function PostPreviewPane({
+function PostPreviewPanel({
   htmlNode, intl, isPost, editExisting,
 }) {
   const [showPreviewPane, setShowPreviewPane] = useState(false);
@@ -28,6 +28,7 @@ function PostPreviewPane({
             size="inline"
             className="float-right p-3"
             iconClassNames="icon-size"
+            data-testid="hide-preview-button"
           />
           <HTMLLoader
             htmlNode={htmlNode}
@@ -46,6 +47,7 @@ function PostPreviewPane({
             onClick={() => setShowPreviewPane(true)}
             className={`text-primary-500 font-style p-0 ${editExisting && 'mb-4.5'}`}
             style={{ lineHeight: '26px' }}
+            data-testid="show-preview-button"
           >
             {intl.formatMessage(messages.showPreviewButton)}
           </Button>
@@ -55,16 +57,16 @@ function PostPreviewPane({
   );
 }
 
-PostPreviewPane.propTypes = {
+PostPreviewPanel.propTypes = {
   intl: intlShape.isRequired,
   htmlNode: PropTypes.node.isRequired,
   isPost: PropTypes.bool,
   editExisting: PropTypes.bool,
 };
 
-PostPreviewPane.defaultProps = {
+PostPreviewPanel.defaultProps = {
   isPost: false,
   editExisting: false,
 };
 
-export default injectIntl(PostPreviewPane);
+export default injectIntl(PostPreviewPanel);

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/AuthorLabel.jsx

@@ -44,34 +44,31 @@ function AuthorLabel({
 
   const isRetiredUser = author ? author.startsWith('retired__user') : false;
   const showTextPrimary = !authorLabelMessage && !isRetiredUser && !alert;
-
   const className = classNames('d-flex align-items-center', { 'mb-0.5': !postOrComment }, labelColor);
 
   const showUserNameAsLink = useShowLearnersTab()
     && linkToProfile && author && author !== intl.formatMessage(messages.anonymous);
 
+  const authorName = (
+    <span
+      className={classNames('mr-1.5 font-size-14 font-style font-weight-500', {
+        'text-gray-700': isRetiredUser,
+        'text-primary-500': !authorLabelMessage && !isRetiredUser,
+      })}
+      role="heading"
+      aria-level="2"
+    >
+      {isRetiredUser ? '[Deactivated]' : author}
+    </span>
+  );
   const labelContents = (
-    <div className={className}>
-      {!alert && (
-        <span
-          className={classNames('mr-1.5 font-size-14 font-style font-weight-500', {
-            'text-gray-700': isRetiredUser,
-            'text-primary-500': !authorLabelMessage && !isRetiredUser,
-          })}
-          role="heading"
-          aria-level="2"
-        >
-          {isRetiredUser ? '[Deactivated]' : author}
-        </span>
-      )}
-
+    <>
       <OverlayTrigger
         overlay={(
           <Tooltip id={`endorsed-by-${author}-tooltip`}>
             {author}
           </Tooltip>
         )}
-
         trigger={['hover', 'focus']}
       >
         <div className={classNames('d-flex flex-row align-items-center', {
@@ -86,20 +83,19 @@ function AuthorLabel({
             src={icon}
             data-testid="author-icon"
           />
-
+          {authorLabelMessage && (
+            <span
+              className={classNames('mr-1.5 font-size-14 font-style font-weight-500', {
+                'text-primary-500': showTextPrimary,
+                'text-gray-700': isRetiredUser,
+              })}
+              style={{ marginLeft: '2px' }}
+            >
+              {authorLabelMessage}
+            </span>
+          )}
         </div>
       </OverlayTrigger>
-      {authorLabelMessage && (
-        <span
-          className={classNames('mr-1.5 font-size-14 font-style font-weight-500', {
-            'text-primary-500': showTextPrimary,
-            'text-gray-700': isRetiredUser,
-          })}
-          style={{ marginLeft: '2px' }}
-        >
-          {authorLabelMessage}
-        </span>
-      )}
       {postCreatedAt && (
         <span
           title={postCreatedAt}
@@ -112,23 +108,25 @@ function AuthorLabel({
           {timeago.format(postCreatedAt, 'time-locale')}
         </span>
       )}
-
-    </div>
+    </>
   );
 
   return showUserNameAsLink
     ? (
-      <Link
-        data-testid="learner-posts-link"
-        id="learner-posts-link"
-        to={discussionsPath(Routes.LEARNERS.POSTS, { learnerUsername: author, courseId })(location)}
-        className="text-decoration-none"
-        style={{ width: 'fit-content' }}
-      >
+      <div className={className}>
+        <Link
+          data-testid="learner-posts-link"
+          id="learner-posts-link"
+          to={discussionsPath(Routes.LEARNERS.POSTS, { learnerUsername: author, courseId })(location)}
+          className="text-decoration-none"
+          style={{ width: 'fit-content' }}
+        >
+          {!alert && authorName}
+        </Link>
         {labelContents}
-      </Link>
+      </div>
     )
-    : <>{labelContents}</>;
+    : <div className={className}>{authorName}{labelContents}</div>;
 }
 
 AuthorLabel.propTypes = {

src/discussions/common/AuthorLabel.test.jsx

@@ -93,12 +93,13 @@ describe('Author label', () => {
       async () => {
         renderComponent(author, authorLabel, linkToProfile, labelColor);
         const authorElement = container.querySelector('[role=heading]');
-        const labelElement = authorElement.parentNode.lastChild;
+        const labelParentNode = authorElement.parentNode.parentNode;
+        const labelElement = labelParentNode.lastChild.lastChild;
         const label = ['TA', 'Staff'].includes(labelElement.textContent) && labelElement.textContent;
 
         if (linkToProfile) {
-          expect(authorElement.parentNode).toHaveClass(labelColor);
-          expect(authorElement.parentNode.lastChild).toHaveTextContent(label);
+          expect(labelParentNode).toHaveClass(labelColor);
+          expect(labelElement).toHaveTextContent(label);
         } else {
           expect(authorElement.parentNode.lastChild).not.toHaveTextContent(label, { exact: true });
           expect(authorElement.parentNode).not.toHaveClass(labelColor, { exact: true });

src/discussions/common/HoverCard.jsx

@@ -3,8 +3,10 @@ import PropTypes from 'prop-types';
 
 import classNames from 'classnames';
 
-import { injectIntl } from '@edx/frontend-platform/i18n';
-import { Button, Icon, IconButton } from '@edx/paragon';
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import {
+  Button, Icon, IconButton, OverlayTrigger, Tooltip,
+} from '@edx/paragon';
 
 import {
   StarFilled, StarOutline, ThumbUpFilled, ThumbUpOutline,
@@ -16,6 +18,7 @@ import ActionsDropdown from './ActionsDropdown';
 import { DiscussionContext } from './context';
 
 function HoverCard({
+  intl,
   commentOrPost,
   actionHandlers,
   handleResponseCommentButton,
@@ -49,17 +52,26 @@ function HoverCard({
       )}
       {endorseIcons && (
         <div className="hover-button">
-          <IconButton
-            src={endorseIcons.icon}
-            iconAs={Icon}
-            onClick={() => {
-              const actionFunction = actionHandlers[endorseIcons.action];
-              actionFunction();
-            }}
-            className={['endorse', 'unendorse'].includes(endorseIcons.id) ? 'text-dark-500' : 'text-success-500'}
-            size="sm"
-            alt="Endorse"
-          />
+          <OverlayTrigger
+            overlay={(
+              <Tooltip id="endorsed-icon-tooltip">
+                {intl.formatMessage(endorseIcons.label)}
+              </Tooltip>
+            )}
+            trigger={['hover', 'focus']}
+          >
+            <IconButton
+              src={endorseIcons.icon}
+              iconAs={Icon}
+              onClick={() => {
+                const actionFunction = actionHandlers[endorseIcons.action];
+                actionFunction();
+              }}
+              className={['endorse', 'unendorse'].includes(endorseIcons.id) ? 'text-dark-500' : 'text-success-500'}
+              size="sm"
+              alt="Endorse"
+            />
+          </OverlayTrigger>
         </div>
       )}
       <div className="hover-button">
@@ -98,6 +110,7 @@ function HoverCard({
 }
 
 HoverCard.propTypes = {
+  intl: intlShape.isRequired,
   commentOrPost: PropTypes.oneOfType([commentShape, postShape]).isRequired,
   actionHandlers: PropTypes.objectOf(PropTypes.func).isRequired,
   handleResponseCommentButton: PropTypes.func.isRequired,

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

@@ -128,9 +128,11 @@ export function useContainerSize(refContainer) {
 
   const resizeObserver = useRef(new ResizeObserver(() => {
     /* istanbul ignore if: ResizeObserver isn't available in the testing env */
-    if (refContainer?.current) {
-      setHeight(refContainer?.current?.clientHeight);
-    }
+    window.requestAnimationFrame(() => {
+      if (refContainer?.current) {
+        setHeight(refContainer?.current?.clientHeight);
+      }
+    });
   }));
 
   useEffect(() => {
@@ -198,7 +200,7 @@ export const useUserCanAddThreadInBlackoutDate = () => {
   const isInBlackoutDateRange = inBlackoutDateRange(blackoutDateRange);
 
   return (!(isInBlackoutDateRange)
-          || (isUserAdmin || userHasModerationPrivilages || isUserGroupTA || isCourseAdmin || isCourseStaff));
+    || (isUserAdmin || userHasModerationPrivilages || isUserGroupTA || isCourseAdmin || isCourseStaff));
 };
 
 function camelToConstant(string) {

src/discussions/discussions-home/DiscussionsHome.jsx

@@ -29,6 +29,7 @@ import { postMessageToParent } from '../utils';
 import BlackoutInformationBanner from './BlackoutInformationBanner';
 import DiscussionContent from './DiscussionContent';
 import DiscussionSidebar from './DiscussionSidebar';
+import useFeedbackWrapper from './FeedbackWrapper';
 import InformationBanner from './InformationBanner';
 
 export default function DiscussionsHome() {
@@ -52,7 +53,7 @@ export default function DiscussionsHome() {
 
   useCourseDiscussionData(courseId);
   useRedirectToThread(courseId, enableInContextSidebar);
-
+  useFeedbackWrapper();
   /*  Display the content area if we are currently viewing/editing a post or creating one.
   If the window is larger than a particular size, show the sidebar for navigating between posts/topics.
   However, for smaller screens or embeds, onlyshow the sidebar if the content area isn't displayed. */

src/discussions/discussions-home/DiscussionsHome.test.jsx

@@ -6,25 +6,37 @@ import { act } from 'react-dom/test-utils';
 import { IntlProvider } from 'react-intl';
 import { Context as ResponsiveContext } from 'react-responsive';
 import { MemoryRouter } 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 { getApiBaseUrl } from '../../data/constants';
 import { initializeStore } from '../../store';
 import { executeThunk } from '../../test-utils';
-import { getCourseConfigApiUrl } from '../data/api';
+import { getCourseConfigApiUrl, getDiscussionsConfigUrl } from '../data/api';
 import { fetchCourseConfig } from '../data/thunks';
+import { getCourseTopicsApiUrl } from '../in-context-topics/data/api';
+import { fetchCourseTopicsV3 } from '../in-context-topics/data/thunks';
 import navigationBarMessages from '../navigation/navigation-bar/messages';
+import { getThreadsApiUrl } from '../posts/data/api';
+import { fetchThreads } from '../posts/data/thunks';
+import { fetchCourseTopics } from '../topics/data/thunks';
 import DiscussionsHome from './DiscussionsHome';
 
+import '../posts/data/__factories__/threads.factory';
+import '../in-context-topics/data/__factories__/inContextTopics.factory';
+import '../topics/data/__factories__/topics.factory';
+
 const courseConfigApiUrl = getCourseConfigApiUrl();
 let axiosMock;
 let store;
 const courseId = 'course-v1:edX+DemoX+Demo_Course';
+let container;
 
 function renderComponent(location = `/${courseId}/`) {
-  render(
+  const wrapper = render(
     <IntlProvider locale="en">
       <ResponsiveContext.Provider value={{ width: 1280 }}>
         <AppProvider store={store}>
@@ -35,6 +47,7 @@ function renderComponent(location = `/${courseId}/`) {
       </ResponsiveContext.Provider>
     </IntlProvider>,
   );
+  container = wrapper.container;
 }
 
 describe('DiscussionsHome', () => {
@@ -51,6 +64,16 @@ describe('DiscussionsHome', () => {
     store = initializeStore();
   });
 
+  async function setUpV1TopicsMockResponse() {
+    axiosMock
+      .onGet(`${getApiBaseUrl()}/api/discussion/v1/course_topics/${courseId}`)
+      .reply(200, {
+        courseware_topics: Factory.buildList('category', 2),
+        non_courseware_topics: Factory.buildList('topic', 3, {}, { topicPrefix: 'ncw' }),
+      });
+    await executeThunk(fetchCourseTopics(courseId), store.dispatch, store.getState);
+  }
+
   test('clicking "All Topics" button renders topics view', async () => {
     renderComponent();
 
@@ -105,4 +128,123 @@ describe('DiscussionsHome', () => {
     expect(document.getElementById('courseTabsNavigation')).toBeInTheDocument();
     expect(screen.queryByRole('contentinfo')).toBeInTheDocument();
   });
+
+  it.each([
+    { searchByEndPoint: 'category/unit-1' },
+    { searchByEndPoint: 'topics/topic-1' },
+  ])('should display add a post message for inContext empty topics %s', async ({ searchByEndPoint }) => {
+    axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+      enableInContext: true, provider: 'openedx', hasModerationPrivileges: true,
+    });
+    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+    await renderComponent(`/${courseId}/${searchByEndPoint}`);
+
+    expect(screen.queryByText('Add a post')).toBeInTheDocument();
+  });
+
+  it.each([
+    { searchByEndPoint: 'category/section-topic-1', result: 'Add a post' },
+    { searchByEndPoint: 'topics/topic-1', result: 'No post selected' },
+  ])(`should display No post selected message on posts pages when user has yet to select a post to display
+  for incontext topics %s`, async ({ searchByEndPoint, result }) => {
+    axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+      enableInContext: true, provider: 'openedx', hasModerationPrivileges: true,
+    });
+    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+    axiosMock.onGet(getThreadsApiUrl())
+      .reply(() => {
+        const threadAttrs = { previewBody: 'thread preview body' };
+        return [200, Factory.build('threadsResult', {}, {
+          topicId: 'noncourseware-topic-1',
+          threadAttrs,
+          count: 3,
+        })];
+      });
+    await executeThunk(fetchThreads(courseId), store.dispatch, store.getState);
+    await renderComponent(`/${courseId}/${searchByEndPoint}`);
+
+    expect(screen.queryByText(result)).toBeInTheDocument();
+  });
+
+  it.each([
+    { searchByEndPoint: 'category/section-topic-1' },
+    { searchByEndPoint: 'topics' },
+  ])('should display No Topic selected message on inContext topic pages when user has yet to select a topic %s',
+    async ({ searchByEndPoint }) => {
+      axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+        enableInContext: true, provider: 'openedx', hasModerationPrivileges: true,
+      });
+      await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+      axiosMock.onGet(`${getCourseTopicsApiUrl()}${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);
+      await renderComponent(`/${courseId}/${searchByEndPoint}`);
+
+      expect(screen.queryByText('No topic selected')).toBeInTheDocument();
+    });
+
+  it('should display empty page message for empty learners list', async () => {
+    axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+      learners_tab_enabled: true,
+    });
+    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+    await renderComponent(`/${courseId}/learners`);
+
+    expect(screen.queryByText('Nothing here yet')).toBeInTheDocument();
+  });
+
+  it('should display post editor form when click on add a post button for posts', async () => {
+    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+    await renderComponent(`/${courseId}/my-posts`);
+    await act(async () => {
+      fireEvent.click(screen.queryByText('Add a post'));
+    });
+
+    await waitFor(() => expect(container.querySelector('.post-form')).toBeInTheDocument());
+  });
+
+  it('should display post editor form when click on add a post button in legacy topics view', async () => {
+    axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+      enable_in_context: false,
+    });
+    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+    await renderComponent(`/${courseId}/topics`);
+
+    expect(screen.queryByText('Nothing here yet')).toBeInTheDocument();
+
+    await act(async () => {
+      fireEvent.click(screen.queryByText('Add a post'));
+    });
+
+    await waitFor(() => expect(container.querySelector('.post-form')).toBeInTheDocument());
+  });
+
+  it('should display Add a post button for legacy topics view', async () => {
+    await renderComponent(`/${courseId}/topics/topic-1`);
+
+    expect(screen.queryByText('Add a post')).toBeInTheDocument();
+  });
+
+  it('should display No post selected for legacy topics view', async () => {
+    await setUpV1TopicsMockResponse();
+    await renderComponent(`/${courseId}/topics/category-1-topic-1`);
+
+    expect(screen.queryByText('No post selected')).toBeInTheDocument();
+  });
+
+  it('should display No topic selected for legacy topics view', async () => {
+    await setUpV1TopicsMockResponse();
+    await renderComponent(`/${courseId}/topics`);
+
+    expect(screen.queryByText('No topic selected')).toBeInTheDocument();
+  });
 });

src/discussions/discussions-home/FeedbackWrapper.jsx

@@ -0,0 +1,37 @@
+import { useEffect } from 'react';
+
+import { useSelector } from 'react-redux';
+
+import { logError } from '@edx/frontend-platform/logging';
+
+import { RequestStatus } from '../../data/constants';
+import {
+  selectconfigLoadingStatus,
+  selectIsCourseAdmin,
+  selectIsCourseStaff,
+  selectUserIsGroupTa,
+  selectUserIsStaff,
+} from '../data/selectors';
+
+export default function useFeedbackWrapper() {
+  const isStaff = useSelector(selectUserIsStaff);
+  const isUserGroupTA = useSelector(selectUserIsGroupTa);
+  const isCourseAdmin = useSelector(selectIsCourseAdmin);
+  const isCourseStaff = useSelector(selectIsCourseStaff);
+  const configStatus = useSelector(selectconfigLoadingStatus);
+
+  useEffect(() => {
+    if (configStatus === RequestStatus.SUCCESSFUL) {
+      let url = '//w.usabilla.com/9e6036348fa1.js';
+      if (isStaff || isUserGroupTA || isCourseAdmin || isCourseStaff) {
+        url = '//w.usabilla.com/767740a06856.js';
+      }
+      try {
+        // eslint-disable-next-line no-undef
+        window.usabilla_live = lightningjs.require('usabilla_live', url);
+      } catch (err) {
+        logError(err);
+      }
+    }
+  }, [configStatus]);
+}

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

@@ -100,9 +100,9 @@ describe('InContext Topic Posts View', () => {
     lastLocation = undefined;
   });
 
-  async function setupTopicsMockResponse() {
+  async function setupTopicsMockResponse(topicCount = 1, sectionCount = 2, archivedCount = 2) {
     axiosMock.onGet(`${topicsApiUrl}${courseId}`)
-      .reply(200, (Factory.buildList('topic', 1, null, {
+      .reply(200, (Factory.buildList('topic', topicCount, null, {
         topicPrefix: 'noncourseware-topic',
         enabledInContext: true,
         topicNamePrefix: 'general-topic',
@@ -111,8 +111,8 @@ describe('InContext Topic Posts View', () => {
         discussionCount: 1,
         questionCount: 1,
       })
-        .concat(Factory.buildList('section', 2, null, { topicPrefix: 'courseware' })))
-        .concat(Factory.buildList('archived-topics', 2, null)));
+        .concat(Factory.buildList('section', sectionCount, null, { topicPrefix: 'courseware' })))
+        .concat(Factory.buildList('archived-topics', archivedCount, null)));
     await executeThunk(fetchCourseTopicsV3(courseId), store.dispatch, store.getState);
 
     const state = store.getState();
@@ -252,4 +252,28 @@ describe('InContext Topic Posts View', () => {
       });
     });
   });
+
+  it('should display Nothing here yet and No topic exists message when topics and selectedSubsectionUnits are empty',
+    async () => {
+      await setupTopicsMockResponse(0, 0, 0);
+      await renderComponent({ topicId: 'test-topic', category: 'test-category' });
+
+      await waitFor(() => expect(within(container).queryByText('Nothing here yet')).toBeInTheDocument());
+      expect(within(container).queryByText('No topic exists')).toBeInTheDocument();
+      expect(within(container).queryByText('Unnamed Topic')).toBeInTheDocument();
+    });
+
+  it('should display all topics when search by an empty search string', async () => {
+    await setupTopicsMockResponse();
+    await renderComponent();
+
+    const searchField = await within(container).getByPlaceholderText('Search topics');
+    fireEvent.change(searchField, { target: { value: '' } });
+
+    await act(async () => fireEvent.click(within(container).getByTestId('search-icon')));
+    await waitFor(() => {
+      expect(within(container).queryByText('Clear results')).not.toBeInTheDocument();
+      expect(container.querySelectorAll('.discussion-topic')).toHaveLength(3);
+    });
+  });
 });

src/discussions/in-context-topics/components/NoResults.jsx

@@ -8,10 +8,10 @@ import messages from '../messages';
 function NoResults({ intl }) {
   const topics = useSelector(selectTopics);
 
-  let title = messages.nothingHere;
-  const helpMessage = '';
+  const title = messages.nothingHere;
+  let helpMessage = '';
   if (topics.length === 0) {
-    title = messages.noTopicExists;
+    helpMessage = messages.noTopicExists;
   }
 
   return (

src/discussions/in-context-topics/data/selector.test.jsx

@@ -8,12 +8,16 @@ import { initializeStore } from '../../../store';
 import { executeThunk } from '../../../test-utils';
 import { getCourseTopicsApiUrl } from './api';
 import {
+  selectArchivedTopic,
   selectArchivedTopics,
+  selectCourseWareThreadsCount,
   selectCoursewareTopics,
   selectLoadingStatus,
   selectNonCoursewareIds,
   selectNonCoursewareTopics,
+  selectSubsection,
   selectTopics,
+  selectTotalTopicsThreadsCount,
   selectUnits,
 } from './selectors';
 import { fetchCourseTopicsV3 } from './thunks';
@@ -58,90 +62,100 @@ describe('In Context Topics Selector test cases', () => {
         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();
     return state;
   }
 
-  test('should return topics list', async () => {
-    setupMockData().then((state) => {
-      const topics = selectTopics(state);
+  it('should return topics list', async () => {
+    const state = await setupMockData();
+    const topics = selectTopics(state);
+    const topicsIds = topics.map(topic => topic.id);
 
-      expect(topics).not.toBeUndefined();
-      topics.forEach(data => {
-        const topicFunc = jest.fn((topic) => {
-          if (topic.id.includes('noncourseware-topic')) { return true; }
-          if (topic.id.includes('courseware-topic')) { return true; }
-          if (topic.id.includes('archived')) { return true; }
-          return false;
-        });
-        topicFunc(data);
-        expect(topicFunc).toHaveReturnedWith(true);
-      });
+    expect(topicsIds[0].includes('noncourseware-topic')).toBeTruthy();
+    expect(topicsIds[1].includes('courseware-topic')).toBeTruthy();
+    expect(topicsIds[3].includes('archived')).toBeTruthy();
+  });
+
+  it('should return courseware topics list', async () => {
+    const state = await setupMockData();
+    const coursewareTopics = selectCoursewareTopics(state);
+
+    expect(coursewareTopics).not.toBeUndefined();
+    coursewareTopics.forEach((topic, index) => {
+      expect(topic?.id).toEqual(`courseware-topic-${index + 1}-v3`);
     });
   });
 
-  test('should return courseware topics list', async () => {
-    setupMockData().then((state) => {
-      const coursewareTopics = selectCoursewareTopics(state);
+  it('should return noncourseware topics list', async () => {
+    const state = await setupMockData();
+    const nonCoursewareTopics = selectNonCoursewareTopics(state);
 
-      expect(coursewareTopics).not.toBeUndefined();
-      coursewareTopics.forEach((topic, index) => {
-        expect(topic?.id).toEqual(`courseware-topic-${index + 1}-v3`);
-      });
+    expect(nonCoursewareTopics).not.toBeUndefined();
+    nonCoursewareTopics.forEach((topic, index) => {
+      expect(topic?.id).toEqual(`noncourseware-topic-${index + 1}`);
     });
   });
 
-  test('should return noncourseware topics list', async () => {
-    setupMockData().then((state) => {
-      const nonCoursewareTopics = selectNonCoursewareTopics(state);
+  it('should return noncourseware ids list', async () => {
+    const state = await setupMockData();
+    const nonCoursewareIds = selectNonCoursewareIds(state);
 
-      expect(nonCoursewareTopics).not.toBeUndefined();
-      nonCoursewareTopics.forEach((topic, index) => {
-        expect(topic?.id).toEqual(`noncourseware-topic-${index + 1}`);
-      });
+    expect(nonCoursewareIds).not.toBeUndefined();
+    nonCoursewareIds.forEach((id, index) => {
+      expect(id).toEqual(`noncourseware-topic-${index + 1}`);
     });
   });
 
-  test('should return noncourseware ids list', async () => {
-    setupMockData().then((state) => {
-      const nonCoursewareIds = selectNonCoursewareIds(state);
+  it('should return units list', async () => {
+    const state = await setupMockData();
+    const units = selectUnits(state);
 
-      expect(nonCoursewareIds).not.toBeUndefined();
-      nonCoursewareIds.forEach((id, index) => {
-        expect(id).toEqual(`noncourseware-topic-${index + 1}`);
-      });
+    expect(units).not.toBeUndefined();
+    units.forEach(unit => {
+      expect(unit?.usageKey).not.toBeNull();
     });
   });
 
-  test('should return units list', async () => {
-    setupMockData().then((state) => {
-      const units = selectUnits(state);
+  it('should return archived topics list', async () => {
+    const state = await setupMockData();
+    const archivedTopics = selectArchivedTopics(state);
 
-      expect(units).not.toBeUndefined();
-      units.forEach(unit => {
-        expect(unit?.usageKey).not.toBeNull();
-      });
+    expect(archivedTopics).not.toBeUndefined();
+    archivedTopics.forEach((topic, index) => {
+      expect(topic.id).toEqual(`archived-${index + 1}`);
     });
   });
 
-  test('should return archived topics list', async () => {
-    setupMockData().then((state) => {
-      const archivedTopics = selectArchivedTopics(state);
+  it('should return loading status successful', async () => {
+    const state = await setupMockData();
 
-      expect(archivedTopics).not.toBeUndefined();
-      archivedTopics.forEach((topic, index) => {
-        expect(topic.id).toEqual(`archived-${index + 1}`);
-      });
-    });
+    expect(selectLoadingStatus(state)).toEqual('successful');
   });
 
-  test('should return loading status successful', async () => {
-    setupMockData().then((state) => {
-      const status = selectLoadingStatus(state);
+  it('should return total topics threads count successful.', async () => {
+    const state = await setupMockData();
 
-      expect(status).toEqual('successful');
-    });
+    expect(selectTotalTopicsThreadsCount(state)).toEqual(18);
+  });
+
+  it('should return courseware threads counts successful.', async () => {
+    const state = await setupMockData();
+
+    expect(selectCourseWareThreadsCount('section-topic-1')(state)).toEqual(8);
+  });
+
+  it('should return selected subsection.', async () => {
+    const state = await setupMockData();
+
+    expect(selectSubsection('section-topic-1')(state)).not.toBeNull();
+  });
+
+  it('should return selected archived topic.', async () => {
+    const state = await setupMockData();
+
+    expect(selectArchivedTopic('archived-1')(state)).not.toBeNull();
   });
 });

src/discussions/learners/LearnerPostsView.jsx

@@ -106,7 +106,7 @@ function LearnerPostsView({ intl }) {
           </div>
         ) : (
           nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
-            <Button onClick={() => loadMorePosts(nextPage)} variant="primary" size="md">
+            <Button onClick={() => loadMorePosts(nextPage)} variant="primary" size="md" data-testid="load-more-posts">
               {intl.formatMessage(messages.loadMore)}
             </Button>
           )

src/discussions/learners/LearnerPostsView.test.jsx

@@ -1,6 +1,8 @@
 import React from 'react';
 
-import { render, screen } from '@testing-library/react';
+import {
+  fireEvent, render, screen, waitFor,
+} from '@testing-library/react';
 import MockAdapter from 'axios-mock-adapter';
 import { act } from 'react-dom/test-utils';
 import { IntlProvider } from 'react-intl';
@@ -13,23 +15,26 @@ import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../store';
 import { executeThunk } from '../../test-utils';
+import { getCohortsApiUrl } from '../cohorts/data/api';
+import { fetchCourseCohorts } from '../cohorts/data/thunks';
 import { DiscussionContext } from '../common/context';
-import { getCourseConfigApiUrl } from '../data/api';
-import { fetchCourseConfig } from '../data/thunks';
-import { getCoursesApiUrl } from './data/api';
+import { learnerPostsApiUrl } from './data/api';
+import { fetchUserPosts } from './data/thunks';
 import LearnerPostsView from './LearnerPostsView';
+import { setUpPrivilages } from './test-utils';
 
+import '../cohorts/data/__factories__/cohorts.factory';
 import './data/__factories__';
 
 let store;
 let axiosMock;
-const coursesApiUrl = getCoursesApiUrl();
-const courseConfigApiUrl = getCourseConfigApiUrl();
 const courseId = 'course-v1:edX+TestX+Test_Course';
 const username = 'abc123';
+let container;
+let lastLocation;
 
-function renderComponent(path = `/${courseId}/learners/${username}/posts`) {
-  return render(
+async function renderComponent() {
+  const wrapper = render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
         <DiscussionContext.Provider
@@ -38,18 +43,25 @@ function renderComponent(path = `/${courseId}/learners/${username}/posts`) {
             courseId,
           }}
         >
-          <MemoryRouter initialEntries={[path]}>
-            <Route path={path}>
+          <MemoryRouter initialEntries={[`/${courseId}/learners/${username}/posts`]}>
+            <Route path="/:courseId/learners/:learnerUsername/posts">
               <LearnerPostsView />
             </Route>
+            <Route
+              render={({ location }) => {
+                lastLocation = location;
+                return null;
+              }}
+            />
           </MemoryRouter>
         </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );
+  container = wrapper.container;
 }
 
-describe('LearnerPostsView', () => {
+describe('Learner Posts View', () => {
   beforeEach(async () => {
     initializeMockApp({
       authenticatedUser: {
@@ -62,31 +74,143 @@ describe('LearnerPostsView', () => {
 
     store = initializeStore();
     Factory.resetAll();
-    const learnerPosts = Factory.build('learnerPosts', {}, {
-      abuseFlaggedCount: 1,
-    });
-    const apiUrl = `${coursesApiUrl}${courseId}/learner/`;
     axiosMock = new MockAdapter(getAuthenticatedHttpClient());
-    axiosMock.onGet(apiUrl, { username, count_flagged: true })
-      .reply(() => [200, learnerPosts]);
+    axiosMock.onGet(learnerPostsApiUrl(courseId), { username, count_flagged: true })
+      .reply(() => [200, Factory.build('learnerPosts', {}, {
+        abuseFlaggedCount: 1,
+      })]);
+    await executeThunk(fetchUserPosts(courseId), store.dispatch, store.getState);
   });
 
-  describe('Basic', () => {
-    test('Reported icon is visible to moderator for post with reported comment', async () => {
-      axiosMock.onGet(`${courseConfigApiUrl}${courseId}/`).reply(200, {
-        has_moderation_privileges: true,
+  test('Reported icon is visible to moderator for post with reported comment', async () => {
+    await setUpPrivilages(axiosMock, store, true);
+    await waitFor(() => { renderComponent(); });
+
+    expect(container.querySelector('[data-testid="reported-post"]')).toBeInTheDocument();
+  });
+
+  test('Reported icon is not visible to learner for post with reported comment', async () => {
+    await renderComponent();
+    expect(screen.queryByTestId('reported-post')).not.toBeInTheDocument();
+  });
+
+  test('Learner title bar should display a title bar, a learner name, and a back button', async () => {
+    await renderComponent();
+
+    const titleBar = container.querySelector('.discussion-posts:first-child');
+    const learnerName = screen.queryByText('Activity for Abc123');
+    const backButton = screen.getByLabelText('Back');
+
+    expect(titleBar).toBeInTheDocument();
+    expect(learnerName).toBeInTheDocument();
+    expect(backButton).toBeInTheDocument();
+  });
+
+  test('Learner title bar should redirect to the learners list when clicking on the back button',
+    async () => {
+      await renderComponent();
+
+      const backButton = screen.getByLabelText('Back');
+
+      await act(() => fireEvent.click(backButton));
+      await waitFor(() => {
+        expect(lastLocation.pathname.endsWith('/learners')).toBeTruthy();
       });
-      axiosMock.onGet(`${courseConfigApiUrl}${courseId}/settings`).reply(200, {});
-      await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
-      await act(async () => {
-        renderComponent();
-      });
-      expect(screen.queryAllByTestId('reported-post')[0]).toBeInTheDocument();
     });
 
-    test('Reported icon is not visible to learner for post with reported comment', async () => {
-      await renderComponent();
-      expect(screen.queryByTestId('reported-post')).not.toBeInTheDocument();
+  it('should display a post-filter bar and All posts sorted by recent activity text.', async () => {
+    await renderComponent();
+
+    const filterBar = container.querySelector('.filter-bar');
+    const recentActivity = screen.getByText('All posts sorted by recent activity');
+
+    expect(filterBar).toBeInTheDocument();
+    expect(recentActivity).toBeInTheDocument();
+  });
+
+  it(`should display a list of the interactive posts of a selected learner and the posts count
+     should be equal to the API response count.`, async () => {
+    await waitFor(() => {
+      renderComponent();
     });
+    const posts = await container.querySelectorAll('.discussion-post');
+
+    expect(posts).toHaveLength(2);
+    expect(posts).toHaveLength(Object.values(store.getState().threads.threadsById).length);
+  });
+
+  it.each([
+    { searchBy: 'type-all', result: 2 },
+    { searchBy: 'type-discussions', result: 2 },
+    { searchBy: 'type-questions', result: 2 },
+    { searchBy: 'status-unread', result: 2 },
+    { searchBy: 'sort-comments', result: 2 },
+    { searchBy: 'sort-votes', result: 2 },
+    { searchBy: 'sort-activity', result: 2 },
+  ])('successfully display learners by %s.', async ({ searchBy, result }) => {
+    await setUpPrivilages(axiosMock, store, true);
+    await renderComponent();
+
+    const filterBar = container.querySelector('.collapsible-trigger');
+    await act(async () => {
+      fireEvent.click(filterBar);
+    });
+
+    await waitFor(async () => {
+      const activity = container.querySelector(`[for='${searchBy}']`);
+
+      await act(async () => {
+        fireEvent.click(activity);
+      });
+      await waitFor(() => {
+        const learners = container.querySelectorAll('.discussion-post');
+
+        expect(learners).toHaveLength(result);
+      });
+    });
+  });
+
+  it.each([
+    { searchBy: 'type-all', result: 2 },
+    { searchBy: 'cohort-1', result: 2 },
+  ])('successfully display learners by %s.', async ({ searchBy, result }) => {
+    await setUpPrivilages(axiosMock, store, true);
+    axiosMock.onGet(getCohortsApiUrl(courseId))
+      .reply(200, Factory.buildList('cohort', 3));
+
+    await executeThunk(fetchCourseCohorts(courseId), store.dispatch, store.getState);
+    await renderComponent();
+
+    const filterBar = await container.querySelector('.collapsible-trigger');
+    await act(async () => {
+      fireEvent.click(filterBar);
+    });
+
+    const cohort = await container.querySelector(`[for='${searchBy}']`);
+
+    await act(async () => {
+      fireEvent.click(cohort);
+    });
+    await waitFor(() => {
+      const learners = container.querySelectorAll('.discussion-post');
+
+      expect(learners).toHaveLength(result);
+    });
+  });
+
+  it('should display load more posts button and display more posts by clicking on button.', async () => {
+    await renderComponent();
+    await waitFor(() => container.querySelector('[data-testid="load-more-posts"]'));
+
+    const loadMoreButton = container.querySelector('[data-testid="load-more-posts"]');
+
+    expect(loadMoreButton).toBeInTheDocument();
+
+    await act(async () => {
+      fireEvent.click(loadMoreButton);
+    });
+
+    expect(loadMoreButton).not.toBeInTheDocument();
+    expect(container.querySelectorAll('.discussion-post')).toHaveLength(2);
   });
 });

src/discussions/learners/LearnersView.jsx

@@ -89,7 +89,7 @@ function LearnersView({ intl }) {
           </div>
         ) : (
           nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
-            <Button onClick={() => loadPage()} variant="primary" size="md">
+            <Button onClick={() => loadPage()} variant="primary" size="md" data-testid="load-more-learners">
               {intl.formatMessage(messages.loadMore)}
             </Button>
           )

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';
 
@@ -23,71 +27,268 @@ 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={[`/${courseId}/`]}>
-          <Route path="/:courseId/">
-            <LearnersView />
-          </Route>
-        </MemoryRouter>
+        <DiscussionContext.Provider value={{
+          page: 'learners',
+          learnerUsername: 'learner-1',
+        }}
+        >
+          <MemoryRouter initialEntries={[`/${courseId}/`]}>
+            <Route path="/:courseId/">
+              <PostActionsBar />
+              <LearnersView />
+            </Route>
+          </MemoryRouter>
+        </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );
+  container = wrapper.container;
 }
 
 describe('LearnersView', () => {
-  const learnerCount = 3;
   beforeEach(async () => {
     initializeMockApp({
       authenticatedUser: {
         userId: 3,
-        username: 'abc123',
+        username: 'test_user',
         administrator: true,
         roles: [],
+        learnersTabEnabled: false,
       },
     });
-
+    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: ['learner-1', 'learner-2', 'learner-3'],
-    });
-    axiosMock.onGet(`${userProfileApiUrl}?username=learner-1,learner-2,learner-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,
+    activeFlags,
+    inactiveFlags,
+  ) {
+    Factory.resetAll();
+    const learnersData = Factory.build('learnersResult', {}, {
+      count,
+      pageSize,
+      page,
+      activeFlags,
+      inactiveFlags,
     });
-    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(hasModerationPrivileges = false) {
+    axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+      learners_tab_enabled: true,
+      user_is_privileged: true,
+      hasModerationPrivileges,
+    });
+
+    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: 3 },
+    { searchBy: 'sort-activity', result: 3 },
+    { searchBy: 'sort-reported', result: 3 },
+  ])('successfully display learners by %s.', async ({ searchBy, result }) => {
+    await setUpLearnerMockResponse();
+    await assignPrivilages(true);
+    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, 1);
+      });
+
+      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(true);
+    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);
+  });
+
+  it('should display reported and previously reported message by passing activeFlags or inactiveFlags',
+    async () => {
+      await setUpLearnerMockResponse(2, 2, 1, ['learner-1', 'learner-2'], '', 1, 1);
+      await assignPrivilages(true);
+      await renderComponent();
+      await waitFor(() => container.querySelector('.text-danger'));
+
+      const reportedIcon = container.querySelector('.text-danger');
+
+      await act(async () => fireEvent.mouseEnter(reportedIcon));
+
+      const reported = await screen.getByText('2 reported');
+      const previouslyReported = screen.getByText('1 previously reported');
+
+      expect(reportedIcon).toBeInTheDocument();
+      expect(reported).toBeInTheDocument();
+      expect(previouslyReported).toBeInTheDocument();
+    });
+
+  it('should display load more button and display more learners by clicking on button.', async () => {
+    await setUpLearnerMockResponse();
+    await assignPrivilages(true);
+    await renderComponent();
+
+    await waitFor(() => container.querySelector('[data-testid="load-more-learners"]'));
+
+    const loadMoreButton = container.querySelector('[data-testid="load-more-learners"]');
+
+    await act(async () => {
+      fireEvent.click(loadMoreButton);
+    });
+
+    expect(loadMoreButton).not.toBeInTheDocument();
+    expect(container.querySelectorAll('.discussion-post')).toHaveLength(6);
+  });
 });

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

@@ -5,6 +5,8 @@ Factory.define('learner')
   .attr('username', ['id'], (id) => `learner-${id}`)
   .option('activeFlags', null, null)
   .attr('active_flags', ['activeFlags'], (activeFlags) => activeFlags)
+  .option('inactiveFlags', null, null)
+  .attr('inactive_flags', ['inactiveFlags'], (inactiveFlags) => inactiveFlags)
   .attrs({
     threads: 1,
     replies: 0,
@@ -13,16 +15,17 @@ 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)
+  .option('inactiveFlags', null, 0)
   .attr(
     'pagination',
     ['courseId', 'count', 'page', 'pageSize'],
     (courseId, count, page, pageSize) => {
-      const numPages = Math.ceil(count / pageSize);
+      const numPages = Math.ceil(pageSize / count);
       const next = page < numPages ? page + 1 : null;
       const prev = page > 1 ? page - 1 : null;
       return {
@@ -35,24 +38,24 @@ Factory.define('learnersResult')
   )
   .attr(
     'results',
-    ['count', 'pageSize', 'page', 'courseId', 'activeFlags'],
-    (count, pageSize, page, courseId, activeFlags) => {
+    ['count', 'pageSize', 'page', 'courseId', 'activeFlags', 'inactiveFlags'],
+    (count, pageSize, page, courseId, activeFlags, inactiveFlags) => {
       const attrs = { course_id: courseId };
       Object.keys(attrs).forEach((key) => (attrs[key] === undefined ? delete attrs[key] : {}));
       const len = pageSize * page <= count ? pageSize : count % pageSize;
       let learners = [];
 
-      if (activeFlags && activeFlags <= len) {
+      if (activeFlags <= len) {
         learners = Factory.buildList('learner', len - activeFlags, attrs);
         learners = learners.concat(
           Factory.buildList(
             'learner',
             activeFlags,
-            { ...attrs, active_flags: Math.floor(Math.random() * 10) + 1 },
+            { ...attrs, active_flags: activeFlags + 1, inactive_flags: inactiveFlags },
           ),
         );
       } else {
-        learners = Factory.buildList('learner', len, attrs);
+        learners = Factory.buildList('learner', len, attrs, activeFlags, inactiveFlags);
       }
       return learners;
     },
@@ -135,8 +138,8 @@ Factory.define('learnerPosts')
     },
   )
   .attr('pagination', [], () => ({
-    next: null,
+    next: 1,
     prev: null,
     count: 2,
-    num_pages: 1,
+    num_pages: 2,
   }));

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

@@ -73,7 +73,7 @@ describe('Learner redux test cases', () => {
 
       expect(learners.nextPage).toEqual(2);
       expect(learners.totalPages).toEqual(2);
-      expect(learners.totalLearners).toEqual(6);
+      expect(learners.totalLearners).toEqual(3);
       expect(learners.sortedBy).toEqual('activity');
     });
 

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

@@ -23,7 +23,7 @@ const userProfileApiUrl = getUserProfileApiUrl();
 let axiosMock;
 let store;
 const username = 'abc123';
-const learnerCount = 6;
+const learnerCount = 3;
 let state;
 
 describe('Learner selectors test cases', () => {
@@ -43,7 +43,8 @@ describe('Learner selectors test cases', () => {
     axiosMock.onGet(learnersApiUrl(courseId))
       .reply(() => [200, Factory.build('learnersResult', {}, {
         count: learnerCount,
-        pageSize: 3,
+        pageSize: 6,
+        page: 1,
       })]);
 
     axiosMock.onGet(`${userProfileApiUrl}?username=learner-1,learner-2,learner-3`)

src/discussions/learners/data/selectors.js

@@ -18,12 +18,3 @@ export const selectLearnerNextPage = () => state => state.learners.nextPage;
 export const selectLearnerAvatar = author => state => (
   state.learners.learnerProfiles[author]?.profileImage?.imageUrlLarge
 );
-
-export const selectLearnerLastLogin = author => state => (
-  state.learners.learnerProfiles[author]?.lastLogin
-);
-
-export const selectLearner = (username) => createSelector(
-  [selectAllLearners],
-  learners => learners.find(l => l.username === username) || {},
-);

src/discussions/learners/learner/LearnerFilterBar.jsx

@@ -24,9 +24,11 @@ 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}
+    // eslint-disable-next-line jsx-a11y/no-noninteractive-tabindex
+    tabIndex={value === selected ? '0' : '-1'}
   >
     <Icon src={Check} className={classNames('text-success mr-2', { invisible: value !== selected })} />
     <Form.Radio id={id} className="sr-only sr-only-focusable" value={value} tabIndex="0">

src/discussions/learners/test-utils.js

@@ -5,6 +5,8 @@ import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 
 import { initializeStore } from '../../store';
 import { executeThunk } from '../../test-utils';
+import { getDiscussionsConfigUrl } from '../data/api';
+import { fetchCourseConfig } from '../data/thunks';
 import { getUserProfileApiUrl, learnerPostsApiUrl, learnersApiUrl } from './data/api';
 import { fetchLearners, fetchUserPosts } from './data/thunks';
 
@@ -13,7 +15,7 @@ const courseId = 'course-v1:edX+DemoX+Demo_Course';
 export async function setupLearnerMockResponse({
   learnerCourseId = courseId,
   statusCode = 200,
-  learnerCount = 6,
+  learnerCount = 3,
 } = {}) {
   const store = initializeStore();
   const axiosMock = new MockAdapter(getAuthenticatedHttpClient());
@@ -21,7 +23,8 @@ export async function setupLearnerMockResponse({
   axiosMock.onGet(learnersApiUrl(learnerCourseId))
     .reply(() => [statusCode, Factory.build('learnersResult', {}, {
       count: learnerCount,
-      pageSize: 3,
+      pageSize: 6,
+      page: 1,
     })]);
 
   axiosMock.onGet(`${getUserProfileApiUrl()}?username=learner-1,learner-2,learner-3`)
@@ -50,3 +53,11 @@ export async function setupPostsMockResponse({
   await executeThunk(fetchUserPosts(courseId, { filters }), store.dispatch, store.getState);
   return store.getState().threads;
 }
+
+export async function setUpPrivilages(axiosMock, store, hasModerationPrivileges) {
+  axiosMock.onGet(getDiscussionsConfigUrl(courseId)).reply(200, {
+    hasModerationPrivileges,
+  });
+
+  await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
+}

src/discussions/navigation/navigation-bar/NavigationBar.jsx

@@ -38,13 +38,12 @@ function NavigationBar({ intl }) {
   }
 
   return (
-    <Nav variant="pills" className="py-2">
+    <Nav variant="button-group" className="py-2">
       {navLinks.map(link => (
         <Nav.Item key={link.route}>
           <Nav.Link
             as={NavLink}
             to={discussionsPath(link.route, { courseId })}
-            className="border"
             isActive={link.isActive}
           >
             {intl.formatMessage(link.labelMessage)}

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

@@ -97,9 +97,9 @@ function mockAxiosReturnPagedCommentsResponses() {
   }
 }
 
-async function getThreadAPIResponse(threadId, topicId) {
+async function getThreadAPIResponse(attr = null) {
   axiosMock.onGet(`${threadsApiUrl}${discussionPostId}/`)
-    .reply(200, Factory.build('thread', { id: threadId, topic_id: topicId }));
+    .reply(200, Factory.build('thread', attr));
   await executeThunk(fetchThread(discussionPostId), store.dispatch, store.getState);
 }
 
@@ -152,14 +152,14 @@ describe('PostView', () => {
   });
 
   it('should show Topic Info for non-courseware topics', async () => {
-    await getThreadAPIResponse('thread-1', 'non-courseware-topic-1');
+    await getThreadAPIResponse({ id: 'thread-1', topic_id: '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');
+    await getThreadAPIResponse({ id: 'thread-2', topic_id: 'courseware-topic-2' });
 
     renderComponent('thread-2');
     expect(await screen.findByText('Related to')).toBeInTheDocument();
@@ -223,6 +223,36 @@ describe('ThreadView', () => {
       expect(JSON.parse(axiosMock.history.patch[axiosMock.history.patch.length - 1].data)).toMatchObject(data);
     }
 
+    it('should display post content', async () => {
+      renderComponent(discussionPostId);
+      const post = screen.getByTestId('post-thread-1');
+      expect(within(post).queryByTestId(discussionPostId)).toBeInTheDocument();
+    });
+
+    it('should display comment content', async () => {
+      renderComponent(discussionPostId);
+      const comment = await waitFor(() => screen.findByTestId('comment-comment-1'));
+      expect(within(comment).queryByTestId('comment-1')).toBeInTheDocument();
+    });
+
+    it('should not show post footer', async () => {
+      Factory.resetAll();
+      await getThreadAPIResponse({
+        vote_count: 0, following: false, closed: false, group_id: null,
+      });
+      renderComponent(discussionPostId);
+      expect(screen.queryByTestId('post-footer')).not.toBeInTheDocument();
+    });
+
+    it('should show post footer', async () => {
+      Factory.resetAll();
+      await getThreadAPIResponse({
+        vote_count: 4, following: true, closed: false, group_id: null,
+      });
+      renderComponent(discussionPostId);
+      expect(screen.queryByTestId('post-footer')).toBeInTheDocument();
+    });
+
     it('should show and hide the editor', async () => {
       renderComponent(discussionPostId);
       const post = screen.getByTestId('post-thread-1');
@@ -742,6 +772,20 @@ describe('ThreadView', () => {
   });
 
   describe('For comments replies', () => {
+    it('shows action dropdown for replies', async () => {
+      renderComponent(discussionPostId);
+
+      const reply = await waitFor(() => screen.findByTestId('reply-comment-7'));
+      expect(within(reply).getByRole('button', { name: /actions menu/i })).toBeInTheDocument();
+    });
+
+    it('should display reply content', async () => {
+      renderComponent(discussionPostId);
+
+      const reply = await waitFor(() => screen.findByTestId('reply-comment-7'));
+      expect(within(reply).queryByTestId('comment-7')).toBeInTheDocument();
+    });
+
     it('shows delete confirmation modal', async () => {
       renderComponent(discussionPostId);
 

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

@@ -110,7 +110,7 @@ function Comment({
       {/* eslint-disable jsx-a11y/no-noninteractive-tabindex */}
       <div
         tabIndex="0"
-        className="d-flex flex-column card on-focus"
+        className="d-flex flex-column card on-focus border-0"
         data-testid={`comment-${comment.id}`}
         role="listitem"
       >

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

@@ -11,7 +11,7 @@ import { Button, Form, StatefulButton } from '@edx/paragon';
 
 import { TinyMCEEditor } from '../../../../components';
 import FormikErrorFeedback from '../../../../components/FormikErrorFeedback';
-import PostPreviewPane from '../../../../components/PostPreviewPane';
+import PostPreviewPanel from '../../../../components/PostPreviewPanel';
 import { useDispatchWithState } from '../../../../data/hooks';
 import { DiscussionContext } from '../../../common/context';
 import {
@@ -150,7 +150,7 @@ function CommentEditor({
                 {intl.formatMessage(messages.commentError)}
               </Form.Control.Feedback>
             )}
-          <PostPreviewPane htmlNode={values.comment} />
+          <PostPreviewPanel htmlNode={values.comment} />
           <div className="d-flex py-2 justify-content-end">
             <Button
               variant="outline-primary"

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

@@ -0,0 +1,167 @@
+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 { getCommentsApiUrl } from './api';
+import {
+  addComment, editComment, fetchCommentResponses, fetchThreadComments, removeComment,
+} from './thunks';
+
+import './__factories__';
+
+const threadId = 'test-thread';
+const commentId = 'comment-1';
+const content = 'Test comment';
+const newComment = 'Edited comment';
+const commentsApiUrl = getCommentsApiUrl();
+let axiosMock = null;
+let store;
+
+describe('Post comments view api tests', () => {
+  beforeEach(() => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    store = initializeStore();
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  test('successfully get thread comments', async () => {
+    axiosMock.onGet(commentsApiUrl).reply(200, Factory.build('commentsResult'));
+    await executeThunk(fetchThreadComments(threadId, { endorsed: 'discussion' }), store.dispatch, store.getState);
+
+    expect(Object.keys(store.getState().comments.commentsById)).toEqual(['comment-1', 'comment-2', 'comment-3']);
+  });
+
+  it('failed to fetch thread comments', async () => {
+    axiosMock.onGet(commentsApiUrl).reply(404);
+    await executeThunk(fetchThreadComments(threadId, { endorsed: 'discussion' }), store.dispatch, store.getState);
+
+    expect(store.getState().comments.status).toEqual('failed');
+  });
+
+  it('denied to fetch thread comments', async () => {
+    axiosMock.onGet(commentsApiUrl).reply(403, {});
+    await executeThunk(fetchThreadComments(threadId, { endorsed: 'discussion' }), store.dispatch, store.getState);
+
+    expect(store.getState().comments.status).toEqual('denied');
+  });
+
+  test('successfully fetched comment responses', async () => {
+    axiosMock.onGet(`${commentsApiUrl}${commentId}/`)
+      .reply(200, Factory.build('commentsResult', null, { parentId: commentId }));
+    await executeThunk(fetchCommentResponses(commentId), store.dispatch, store.getState);
+
+    expect(store.getState().comments.commentsInComments)
+      .toEqual({ 'comment-1': ['comment-4', 'comment-5', 'comment-6'] });
+  });
+
+  it('failed to fetch comment responses', async () => {
+    axiosMock.onGet(`${commentsApiUrl}${commentId}/`).reply(404);
+    await executeThunk(fetchCommentResponses(commentId), store.dispatch, store.getState);
+
+    expect(store.getState().comments.status).toEqual('failed');
+  });
+
+  it('denied to fetch comment responses', async () => {
+    axiosMock.onGet(`${commentsApiUrl}${commentId}/`).reply(403, {});
+    await executeThunk(fetchCommentResponses(commentId), store.dispatch, store.getState);
+
+    expect(store.getState().comments.status).toEqual('denied');
+  });
+
+  test('successfully added comment', async () => {
+    axiosMock.onGet(commentsApiUrl).reply(200, Factory.build('commentsResult'));
+    await executeThunk(fetchThreadComments(threadId), store.dispatch, store.getState);
+
+    axiosMock.onPost(commentsApiUrl)
+      .reply(200, Factory.build('comment', {
+        thread_id: threadId,
+        raw_body: content,
+        rendered_body: content,
+      }));
+    await executeThunk(addComment(content, threadId, null), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('successful');
+  });
+
+  it('failed to add comment', async () => {
+    axiosMock.onPost(commentsApiUrl).reply(404);
+    await executeThunk(addComment(content, threadId, null), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('failed');
+  });
+
+  it('denied to add comment', async () => {
+    axiosMock.onPost(commentsApiUrl).reply(403, {});
+    await executeThunk(addComment(content, threadId, null), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('denied');
+  });
+
+  test('comment updated successfully', async () => {
+    axiosMock.onGet(commentsApiUrl).reply(200, Factory.build('commentsResult'));
+    await executeThunk(fetchThreadComments(threadId), store.dispatch, store.getState);
+
+    axiosMock.onPatch(`${commentsApiUrl}${commentId}/`)
+      .reply(200, Factory.build('comment', {
+        id: commentId,
+        raw_body: newComment,
+        rendered_body: newComment,
+      }));
+    await executeThunk(editComment(commentId, newComment), store.dispatch, store.getState);
+
+    expect(store.getState().comments.status).toEqual('successful');
+  });
+
+  it('failed to update comment', async () => {
+    axiosMock.onPatch(`${commentsApiUrl}${commentId}/`).reply(404);
+    await executeThunk(editComment(commentId, newComment), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('failed');
+  });
+
+  it('denied to update comment', async () => {
+    axiosMock.onPatch(`${commentsApiUrl}${commentId}/`).reply(403, {});
+    await executeThunk(editComment(commentId, newComment), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('denied');
+  });
+
+  test('comment removed successfully', async () => {
+    axiosMock.onGet(commentsApiUrl).reply(200, Factory.build('commentsResult'));
+    await executeThunk(fetchThreadComments(threadId), store.dispatch, store.getState);
+
+    axiosMock.onDelete(`${commentsApiUrl}${commentId}/`).reply(201);
+    await executeThunk(removeComment(commentId, threadId), store.dispatch, store.getState);
+
+    expect(store.getState().comments.status).toEqual('successful');
+  });
+
+  it('failed to remove comment', async () => {
+    axiosMock.onDelete(`${commentsApiUrl}${commentId}/`).reply(404);
+    await executeThunk(removeComment(commentId, threadId), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('failed');
+  });
+
+  it('denied to remove comment', async () => {
+    axiosMock.onDelete(`${commentsApiUrl}${commentId}/`).reply(403, {});
+    await executeThunk(removeComment(commentId, threadId), store.dispatch, store.getState);
+
+    expect(store.getState().comments.postStatus).toEqual('denied');
+  });
+});

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

@@ -19,7 +19,7 @@ import { Help, Post } from '@edx/paragon/icons';
 
 import { TinyMCEEditor } from '../../../components';
 import FormikErrorFeedback from '../../../components/FormikErrorFeedback';
-import PostPreviewPane from '../../../components/PostPreviewPane';
+import PostPreviewPanel from '../../../components/PostPreviewPanel';
 import { useDispatchWithState } from '../../../data/hooks';
 import { selectCourseCohorts } from '../../cohorts/data/selectors';
 import { fetchCourseCohorts } from '../../cohorts/data/thunks';
@@ -441,7 +441,7 @@ function PostEditor({
             <FormikErrorFeedback name="comment" />
           </div>
 
-          <PostPreviewPane htmlNode={values.comment} isPost editExisting={editExisting} />
+          <PostPreviewPanel htmlNode={values.comment} isPost editExisting={editExisting} />
 
           <div className="d-flex flex-row mt-n4 w-75 text-primary font-style">
             {!editExisting && (

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

@@ -1,6 +1,8 @@
 import React from 'react';
 
-import { fireEvent, render, screen } from '@testing-library/react';
+import {
+  fireEvent, render, screen, waitFor,
+} from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import MockAdapter from 'axios-mock-adapter';
 import { act } from 'react-dom/test-utils';
@@ -32,10 +34,11 @@ const topicsApiUrl = `${getApiBaseUrl()}/api/discussion/v1/course_topics/${cours
 const threadsApiUrl = getThreadsApiUrl();
 let store;
 let axiosMock;
+let container;
 
 async function renderComponent(editExisting = false, location = `/${courseId}/posts/`) {
   const path = editExisting ? Routes.POSTS.EDIT_POST : Routes.POSTS.NEW_POSTS;
-  await render(
+  const wrapper = await render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
         <DiscussionContext.Provider
@@ -50,6 +53,7 @@ async function renderComponent(editExisting = false, location = `/${courseId}/po
       </AppProvider>
     </IntlProvider>,
   );
+  container = wrapper.container;
 }
 
 describe('PostEditor', () => {
@@ -370,5 +374,30 @@ describe('PostEditor', () => {
         name: /reason \d/i,
       })).toHaveLength(2);
     });
+
+    it('should show Preview Panel', async () => {
+      await renderComponent(true, `/${courseId}/posts/${threadId}/edit`);
+
+      await act(() => fireEvent.click(container.querySelector('[data-testid="show-preview-button"]')));
+      await waitFor(() => {
+        expect(container.querySelector('[data-testid="hide-preview-button"]')).toBeInTheDocument();
+        expect(container.querySelector('[data-testid="show-preview-button"]')).not.toBeInTheDocument();
+      });
+    });
+
+    it('should hide Preview Panel', async () => {
+      await renderComponent(true, `/${courseId}/posts/${threadId}/edit`);
+
+      await act(() => fireEvent.click(container.querySelector('[data-testid="show-preview-button"]')));
+      await waitFor(() => {
+        expect(container.querySelector('[data-testid="hide-preview-button"]')).toBeInTheDocument();
+      });
+
+      await act(() => fireEvent.click(container.querySelector('[data-testid="hide-preview-button"]')));
+      await waitFor(() => {
+        expect(container.querySelector('[data-testid="show-preview-button"]')).toBeInTheDocument();
+        expect(container.querySelector('[data-testid="hide-preview-button"]')).not.toBeInTheDocument();
+      });
+    });
   });
 });

src/discussions/posts/post-filter-bar/PostFilterBar.jsx

@@ -41,6 +41,8 @@ export const ActionItem = ({
     data-testid={value === selected ? 'selected' : null}
     style={{ cursor: 'pointer' }}
     aria-checked={value === selected}
+    // eslint-disable-next-line jsx-a11y/no-noninteractive-tabindex
+    tabIndex={value === selected ? '0' : '-1'}
   >
     <Icon src={Check} className={classNames('text-success mr-2', { invisible: value !== selected })} />
     <Form.Radio id={id} className="sr-only sr-only-focusable" value={value} tabIndex="0">

src/discussions/posts/post/Post.jsx

@@ -15,7 +15,7 @@ import { selectorForUnitSubsection, selectTopicContext } from '../../../data/sel
 import { AlertBanner, Confirmation } from '../../common';
 import { DiscussionContext } from '../../common/context';
 import HoverCard from '../../common/HoverCard';
-import { selectModerationSettings } from '../../data/selectors';
+import { selectModerationSettings, selectUserHasModerationPrivileges } from '../../data/selectors';
 import { selectTopic } from '../../topics/data/selectors';
 import { removeThread, updateExistingThread } from '../data/thunks';
 import ClosePostReasonModal from './ClosePostReasonModal';
@@ -26,7 +26,6 @@ import { postShape } from './proptypes';
 
 function Post({
   post,
-  preview,
   intl,
   handleAddResponseButton,
 }) {
@@ -42,6 +41,9 @@ function Post({
   const [isDeleting, showDeleteConfirmation, hideDeleteConfirmation] = useToggle(false);
   const [isReporting, showReportConfirmation, hideReportConfirmation] = useToggle(false);
   const [isClosing, showClosePostModal, hideClosePostModal] = useToggle(false);
+  const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
+  const displayPostFooter = post.following || post.voteCount || post.closed
+  || (post.groupId && userHasModerationPrivileges);
 
   const handleAbusedFlag = useCallback(() => {
     if (post.abuseFlagged) {
@@ -147,8 +149,8 @@ function Post({
       </div>
       {(topicContext || topic) && (
         <div
-          className={classNames('mt-14px mb-1 font-style font-size-12',
-            { 'w-100': enableInContextSidebar })}
+          className={classNames('mt-14px font-style font-size-12',
+            { 'w-100': enableInContextSidebar, 'mb-1': !displayPostFooter })}
           style={{ lineHeight: '20px' }}
         >
           <span className="text-gray-500" style={{ lineHeight: '20px' }}>{intl.formatMessage(messages.relatedTo)}{' '}</span>
@@ -170,7 +172,7 @@ function Post({
           </Hyperlink>
         </div>
       )}
-      <PostFooter post={post} preview={preview} />
+      {displayPostFooter && <PostFooter post={post} userHasModerationPrivileges={userHasModerationPrivileges} />}
       <ClosePostReasonModal
         isOpen={isClosing}
         onCancel={hideClosePostModal}
@@ -186,12 +188,7 @@ function Post({
 Post.propTypes = {
   intl: intlShape.isRequired,
   post: postShape.isRequired,
-  preview: PropTypes.bool,
   handleAddResponseButton: PropTypes.func.isRequired,
 };
 
-Post.defaultProps = {
-  preview: false,
-};
-
 export default injectIntl(Post);

src/discussions/posts/post/PostFooter.jsx

@@ -1,6 +1,7 @@
 import React from 'react';
+import PropTypes from 'prop-types';
 
-import { useDispatch, useSelector } from 'react-redux';
+import { useDispatch } from 'react-redux';
 
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import {
@@ -9,20 +10,19 @@ import {
 import { Locked, People } from '@edx/paragon/icons';
 
 import { StarFilled, StarOutline } from '../../../components/icons';
-import { selectUserHasModerationPrivileges } from '../../data/selectors';
 import { updateExistingThread } from '../data/thunks';
 import LikeButton from './LikeButton';
 import messages from './messages';
 import { postShape } from './proptypes';
 
 function PostFooter({
-  post,
   intl,
+  post,
+  userHasModerationPrivileges,
 }) {
   const dispatch = useDispatch();
-  const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
   return (
-    <div className="d-flex align-items-center ml-n1.5 mt-10px" style={{ lineHeight: '32px' }}>
+    <div className="d-flex align-items-center ml-n1.5 mt-10px" style={{ height: '32px' }} data-testid="post-footer">
       {post.voteCount !== 0 && (
         <LikeButton
           count={post.voteCount}
@@ -83,6 +83,7 @@ function PostFooter({
             >
               <Icon
                 src={Locked}
+                className="text-primary-500"
                 style={{
                   width: '1rem',
                   height: '1rem',
@@ -99,7 +100,7 @@ function PostFooter({
 PostFooter.propTypes = {
   intl: intlShape.isRequired,
   post: postShape.isRequired,
-
+  userHasModerationPrivileges: PropTypes.bool.isRequired,
 };
 
 export default injectIntl(PostFooter);

src/discussions/posts/post/PostFooter.test.jsx

@@ -14,11 +14,11 @@ import PostFooter from './PostFooter';
 
 let store;
 
-function renderComponent(post, preview = false, showNewCountLabel = false) {
+function renderComponent(post, userHasModerationPrivileges = false) {
   return render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
-        <PostFooter post={post} preview={preview} showNewCountLabel={showNewCountLabel} />
+        <PostFooter post={post} userHasModerationPrivileges={userHasModerationPrivileges} />
       </AppProvider>
     </IntlProvider>,
   );
@@ -64,23 +64,11 @@ describe('PostFooter', () => {
     });
   });
 
-  it("doesn't have 'new' badge when there are 0 new comments", () => {
-    renderComponent({ ...mockPost, unreadCommentCount: 0 });
-    expect(screen.queryByText('2 New')).toBeFalsy();
-    expect(screen.queryByText('0 New')).toBeFalsy();
-  });
-
-  it("doesn't has 'new' badge when the new-unread item is the post itself", () => {
-    // commentCount === 1 means it's just the post without any further comments
-    renderComponent({ ...mockPost, unreadCommentCount: 1, commentCount: 1 });
-    expect(screen.queryByText('1 New')).toBeFalsy();
-  });
-
   it('has the cohort icon only when group information is present', () => {
     renderComponent(mockPost);
     expect(screen.queryByTestId('cohort-icon')).toBeFalsy();
 
-    renderComponent({ ...mockPost, groupId: 5, groupName: 'Test Cohort' });
+    renderComponent({ ...mockPost, groupId: 5, groupName: 'Test Cohort' }, true);
     expect(screen.getByTestId('cohort-icon')).toBeTruthy();
   });
 
@@ -104,4 +92,24 @@ describe('PostFooter', () => {
     renderComponent({ ...mockPost, following: false });
     expect(screen.queryByRole('button', { name: /follow/i })).not.toBeInTheDocument();
   });
+
+  it('tests like button when voteCount is zero', async () => {
+    renderComponent({ ...mockPost, voteCount: 0 });
+    expect(screen.queryByRole('button', { name: /like/i })).not.toBeInTheDocument();
+  });
+
+  it('tests like button when voteCount is not zero', async () => {
+    renderComponent({ ...mockPost, voted: true, voteCount: 4 });
+    const likeButton = screen.getByRole('button', { name: /like/i });
+    await act(async () => {
+      fireEvent.mouseEnter(likeButton);
+    });
+
+    expect(screen.getByRole('tooltip')).toHaveTextContent(/unlike/i);
+    await act(async () => {
+      fireEvent.click(likeButton);
+    });
+    // clicking on the button triggers thread update.
+    expect(store.getState().threads.status === RequestStatus.IN_PROGRESS).toBeTruthy();
+  });
 });

src/discussions/topics/TopicsView.test.jsx

@@ -1,5 +1,5 @@
 import {
-  fireEvent, render, screen,
+  act, fireEvent, render, screen, waitFor,
 } from '@testing-library/react';
 import MockAdapter from 'axios-mock-adapter';
 import { IntlProvider } from 'react-intl';
@@ -26,9 +26,10 @@ const topicsApiUrl = `${getApiBaseUrl()}/api/discussion/v1/course_topics/${cours
 let store;
 let axiosMock;
 let lastLocation;
+let container;
 
 function renderComponent() {
-  render(
+  const wrapper = render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
         <DiscussionContext.Provider value={{ courseId }}>
@@ -50,6 +51,7 @@ function renderComponent() {
       </AppProvider>
     </IntlProvider>,
   );
+  container = wrapper.container;
 }
 
 describe('Legacy Topics View', () => {
@@ -67,7 +69,7 @@ describe('Legacy Topics View', () => {
     });
 
     store = initializeStore({
-      config: { provider: 'legacy' },
+      config: { provider: 'legacy', hasModerationPrivileges: true },
       blocks: {
         topics: {},
       },
@@ -134,4 +136,47 @@ describe('Legacy Topics View', () => {
     fireEvent.click(topic);
     expect(lastLocation.pathname.endsWith(`/category/${categoryPath}`)).toBeTruthy();
   });
+
+  it('should display Unnamed category message for undefined groupId', async () => {
+    const mockData = {
+      courseware_topics: Factory.buildList('category', 2),
+      non_courseware_topics: Factory.buildList('topic', 3, {}, { topicPrefix: 'ncw' }),
+    };
+    mockData.courseware_topics[0].name = '';
+
+    axiosMock
+      .onGet(topicsApiUrl)
+      .reply(200, mockData);
+    await executeThunk(fetchCourseTopics(courseId), store.dispatch, store.getState);
+    await renderComponent();
+
+    expect(await screen.findByText('Unnamed category')).toBeInTheDocument();
+  });
+
+  it('should select the specific topic', async () => {
+    await setupMockResponse();
+    renderComponent();
+
+    const topic = await container.querySelector('[data-topic-id="ncwtopic-5"]');
+
+    await act(async () => {
+      fireEvent.click(topic);
+    });
+    await waitFor(() => {
+      expect(lastLocation.pathname.endsWith('/ncwtopic-5')).toBeTruthy();
+    });
+  });
+
+  it(`should display reported and previously reported messages by enabling canSeeReportedStats along with
+  activeFlags and inactiveFlags`, async () => {
+    await setupMockResponse();
+    renderComponent();
+
+    const reportedIcon = await waitFor(() => container.querySelector('.text-danger'));
+    await act(async () => fireEvent.mouseEnter(reportedIcon));
+
+    expect(reportedIcon).toBeInTheDocument();
+    expect(screen.getByText('2 reported')).toBeInTheDocument();
+    expect(screen.getByText('1 previously reported')).toBeInTheDocument();
+  });
 });

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

@@ -4,9 +4,11 @@ Factory.define('topic')
   .option('topicPrefix', null, '')
   .sequence('id', ['topicPrefix'], (idx, topicPrefix) => `${topicPrefix}topic-${idx}`)
   .sequence('name', ['topicPrefix'], (idx, topicPrefix) => `${topicPrefix}topic ${idx}`)
+  .attr('activeFlags', null, 2)
+  .attr('inactiveFlags', null, 1)
   .attr('thread_counts', [], {
-    discussion: 0,
-    question: 0,
+    discussion: 1,
+    question: 1,
   })
   .attr('children', []);
 
@@ -22,18 +24,6 @@ Factory.define('category')
     return Factory.buildList('topic', 4, null, { topicPrefix: `${name}-` });
   });
 
-Factory.define('topic.v2')
-  .option('topicPrefix', null, '')
-  .option('courseId', null, 'course-v1:edX+DemoX+Demo_Course')
-  .sequence('id', ['topicPrefix'], (idx, topicPrefix) => `${topicPrefix}topic-${idx}`)
-  .sequence('name', ['topicPrefix'], (idx, topicPrefix) => `${topicPrefix}topic ${idx}`)
-  .sequence('usage_key', ['id', 'courseId'], (idx, id, courseId) => `block-v1:${courseId.replace('course-v1:', '')}+type@vertical+block@${id}`)
-  .attr('enabled_in_context', null, true)
-  .attr('thread_counts', [], {
-    discussion: 0,
-    question: 0,
-  });
-
 Factory.define('topic.withThreads')
   .option('topicPrefix', null, '')
   .option('courseId', null, 'course-v1:edX+DemoX+Demo_Course')

src/discussions/topics/data/api.js

@@ -3,12 +3,11 @@ import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 
 import { getApiBaseUrl } from '../../../data/constants';
 
-export async function getCourseTopics(courseId, topicIds) {
+export const getCourseTopicsApiUrl = () => `${getApiBaseUrl()}/api/discussion/v1/course_topics/`;
+
+export async function getCourseTopics(courseId) {
   const url = `${getApiBaseUrl()}/api/discussion/v1/course_topics/${courseId}`;
-  const params = {};
-  if (topicIds) {
-    params.topic_id = topicIds.join(',');
-  }
+
   const { data } = await getAuthenticatedHttpClient()
     .get(url);
   return data;

src/discussions/topics/data/api.test.js

@@ -0,0 +1,70 @@
+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 { getCourseTopics, getCourseTopicsApiUrl } from './api';
+import { fetchCourseTopics } from './thunks';
+
+import './__factories__';
+
+const courseId = 'course-v1:edX+TestX+Test_Course';
+const courseId2 = 'course-v1:edX+TestX+Test_Course2';
+const courseTopicsApiUrl = getCourseTopicsApiUrl();
+
+let axiosMock = null;
+let store;
+
+describe('Legacy Topic Api', () => {
+  beforeEach(() => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    store = initializeStore();
+  });
+
+  afterEach(() => {
+    axiosMock.reset();
+  });
+
+  test('successfully get topics', async () => {
+    axiosMock
+      .onGet(`${courseTopicsApiUrl}${courseId}`)
+      .reply(200, {
+        courseware_topics: Factory.buildList('category', 2),
+        non_courseware_topics: Factory.buildList('topic', 3, {}, { topicPrefix: 'ncw' }),
+      });
+    await executeThunk(fetchCourseTopics(courseId), store.dispatch, store.getState);
+
+    const response = await getCourseTopics(courseId);
+
+    expect(response).not.toBeUndefined();
+    expect(response.courseware_topics).toHaveLength(2);
+    expect(response.non_courseware_topics).toHaveLength(3);
+  });
+
+  it('failed to fetch topics', async () => {
+    axiosMock.onGet(`${courseTopicsApiUrl}${courseId2}`)
+      .reply(404);
+    await executeThunk(fetchCourseTopics(courseId2), store.dispatch, store.getState);
+
+    expect(store.getState().topics.status).toEqual('failed');
+  });
+
+  it('denied to fetch topics', async () => {
+    axiosMock.onGet(`${courseTopicsApiUrl}${courseId}`)
+      .reply(403, {});
+    await executeThunk(fetchCourseTopics(courseId), store.dispatch);
+
+    expect(store.getState().topics.status).toEqual('denied');
+  });
+});

src/discussions/topics/data/selectors.js

@@ -30,7 +30,7 @@ export const selectCoursewareTopics = createSelector(
 export const selectNonCoursewareIds = state => state.topics.nonCoursewareIds;
 
 export const selectNonCoursewareTopics = state => state.topics.nonCoursewareIds?.map(id => state.topics.topics[id])
-  || [];
+|| [];
 
 export const selectTopic = topicId => state => state.topics.topics[topicId];
 

src/discussions/topics/data/slices.js

@@ -54,6 +54,7 @@ export const {
   fetchCourseTopicsRequest,
   fetchCourseTopicsSuccess,
   fetchCourseTopicsFailed,
+  fetchCourseTopicsDenied,
   setFilter,
   setSortBy,
   setTopicsCount,

src/discussions/topics/data/thunks.js

@@ -2,8 +2,11 @@
 import { camelCaseObject } from '@edx/frontend-platform';
 import { logError } from '@edx/frontend-platform/logging';
 
+import { getHttpErrorStatus } from '../../utils';
 import { getCourseTopics } from './api';
-import { fetchCourseTopicsFailed, fetchCourseTopicsRequest, fetchCourseTopicsSuccess } from './slices';
+import {
+  fetchCourseTopicsDenied, fetchCourseTopicsFailed, fetchCourseTopicsRequest, fetchCourseTopicsSuccess,
+} from './slices';
 
 function normaliseTopics(data) {
   const topicsInCategory = {};
@@ -33,7 +36,11 @@ export function fetchCourseTopics(courseId) {
       const data = normaliseTopics(camelCaseObject(await getCourseTopics(courseId)));
       dispatch(fetchCourseTopicsSuccess(data));
     } catch (error) {
-      dispatch(fetchCourseTopicsFailed());
+      if (getHttpErrorStatus(error) === 403) {
+        dispatch(fetchCourseTopicsDenied());
+      } else {
+        dispatch(fetchCourseTopicsFailed());
+      }
       logError(error);
     }
   };

src/discussions/topics/topic-group/ArchivedTopicGroup.jsx

@@ -1,26 +0,0 @@
-import React from 'react';
-
-import { useSelector } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-
-import { selectArchivedTopics } from '../../../data/selectors';
-import messages from '../messages';
-import TopicGroupBase from './TopicGroupBase';
-
-function ArchivedTopicGroup({ intl }) {
-  const topics = useSelector(selectArchivedTopics);
-  return (
-    <TopicGroupBase
-      groupId="archived"
-      groupTitle={intl.formatMessage(messages.archivedTopics)}
-      linkToGroup={false}
-      topics={topics}
-    />
-  );
-}
-ArchivedTopicGroup.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(ArchivedTopicGroup);

src/discussions/topics/topic-group/SequenceTopicGroup.jsx

@@ -1,28 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-
-import { useSelector } from 'react-redux';
-
-import { selectTopicsById } from '../data/selectors';
-import TopicGroupBase from './TopicGroupBase';
-
-function SequenceTopicGroup({
-  sequence,
-}) {
-  const topicsIds = sequence.topics;
-  const topics = useSelector(selectTopicsById(topicsIds));
-
-  return (
-    <TopicGroupBase groupId={sequence.id} groupTitle={sequence.displayName} topics={topics} />
-  );
-}
-
-SequenceTopicGroup.propTypes = {
-  sequence: PropTypes.shape({
-    id: PropTypes.string.isRequired,
-    displayName: PropTypes.string.isRequired,
-    topics: PropTypes.arrayOf(PropTypes.string).isRequired,
-  }).isRequired,
-};
-
-export default SequenceTopicGroup;

src/discussions/topics/topic-search-bar/TopicSearchBar.jsx

@@ -1,29 +0,0 @@
-import React from 'react';
-
-import { useDispatch } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { SearchField } from '@edx/paragon';
-
-import { setFilter } from '../data';
-import messages from '../messages';
-
-function TopicSearchBar({ intl }) {
-  const dispatch = useDispatch();
-  return (
-    <div className="d-flex flex-row p-1 align-items-center">
-      <SearchField
-        className="flex-fill m-1 border-0"
-        placeholder={intl.formatMessage(messages.searchTopics)}
-        onSubmit={(query) => dispatch(setFilter(query))}
-        onChange={(query) => dispatch(setFilter(query))}
-      />
-    </div>
-  );
-}
-
-TopicSearchBar.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(TopicSearchBar);

src/discussions/utils.js

@@ -5,7 +5,7 @@ import { generatePath, useRouteMatch } from 'react-router';
 
 import { getConfig } from '@edx/frontend-platform';
 import {
-  CheckCircle, CheckCircleOutline, Delete, Edit, Pin, QuestionAnswer, Report, Verified, VerifiedOutline,
+  CheckCircle, CheckCircleOutline, Delete, Edit, Lock, LockOpen, Pin, Report, Verified, VerifiedOutline,
 } from '@edx/paragon/icons';
 
 import { InsertLink } from '../components/icons';
@@ -141,14 +141,14 @@ export const ACTIONS_LIST = [
   {
     id: 'close',
     action: ContentActions.CLOSE,
-    icon: QuestionAnswer,
+    icon: Lock,
     label: messages.closeAction,
     conditions: { closed: false },
   },
   {
     id: 'reopen',
     action: ContentActions.CLOSE,
-    icon: QuestionAnswer,
+    icon: LockOpen,
     label: messages.reopenAction,
     conditions: { closed: true },
   },

src/i18n/messages/de_DE.json

@@ -109,7 +109,7 @@
   "discussions.post.closedBy": "Post geschlossen von",
   "discussion.comment.time": "{time} vor",
   "discussion.thread.notFound": "Thema nicht gefunden",
-  "discussions.comment.sortFilterStatus": "{sort, select,\n      false {Oldest first}\n      true {Newest first}\n      other {{sort}}\n    }",
+  "discussions.comment.sortFilterStatus": "{sort, select, false {Älteste zuerst} true {Neueste zuerst} other {{sort}} }",
   "discussions.app.title": "Diskussionen",
   "discussions.posts.actionBar.searchAllPosts": "Einträge durchsuchen",
   "discussions.posts.actionBar.search": "{page, select, topics {Suchthemen} posts {Alle Beiträge durchsuchen} learners {Lernende suchen} myPosts {Alle Beiträge durchsuchen} a00a14c5d87{d9fz}09 {d9fz}09 {d9fz}09 {d9fz}",
@@ -209,6 +209,6 @@
   "tour.action.end": "okay",
   "tour.body.notRespondedFilter": "Jetzt können Sie Diskussionen filtern, um Beiträge ohne Antwort zu finden.",
   "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!"
+  "tour.body.responseSortTour": "Antworten und Kommentare werden jetzt nach Datum sortiert. Bitte verwenden Sie diese Option, um die Sortierreihenfolge zu ändern.",
+  "tour.title.responseSortTour": "Antworten sortieren!"
 }

src/i18n/messages/fr_CA.json

@@ -139,8 +139,8 @@
   "discussions.post.editor.questionText": "Votre question ou idée (obligatoire)",
   "discussions.post.editor.preview": "Aperçu",
   "discussions.post.editor.followPost": "Suivez ce message",
-  "discussions.post.editor.anonymousPost": "Publiez anonymement",
-  "discussions.post.editor.anonymousToPeersPost": "Publiez anonymement à vos pairs",
+  "discussions.post.editor.anonymousPost": "Publier anonymement",
+  "discussions.post.editor.anonymousToPeersPost": "Publier anonymement à vos pairs",
   "discussions.editor.posts.editReasonCode": "Raison de la modification",
   "discussions.editor.posts.showPreview.button": "Afficher l'aperçu",
   "discussions.topic.noName.label": "Catégorie sans nom",

src/index.scss

@@ -251,7 +251,7 @@ header {
   min-width: 29rem;
 }
 
-.filter-menu:focus-within {
+.filter-menu:focus-visible {
   background-color: #e9e6e4 !important;
 }
 
@@ -340,6 +340,14 @@ header {
   box-shadow: 0px 2px 4px rgb(0 0 0 / 15%), 0px 2px 8px rgb(0 0 0 / 15%);
   position: sticky;
   top: 0;
+
+  .nav-button-group{
+    .nav-item:not(:last-child){
+      .nav-link {
+          border-right: 0;
+      }
+    }
+  }
 }
 
 .breadcrumb-menu {
@@ -485,3 +493,12 @@ header {
   margin-bottom: -44px;
   z-index: 1;
 }
+
+.post-preview,
+.discussion-comments {
+  blockquote {
+    border-left: 2px solid #ccc;
+    margin-left: 1.5rem;
+    padding-left: 1rem;
+  }
+}