feat: add unresponded posts filter

src/discussions/posts/PostsView.test.jsx

@@ -197,7 +197,7 @@ describe('PostsView', () => {
       // 5 status filters: any, unread, following, reported, unanswered
       // 3 sort: activity, comments, likes
       // 2 cohort: all groups, 1 api mock response cohort
-      expect(screen.queryAllByRole('radio')).toHaveLength(13);
+      expect(screen.queryAllByRole('radio')).toHaveLength(14);
     });
 
     test('test that the cohorts filter works', async () => {

src/discussions/posts/data/thunks.js

@@ -120,6 +120,9 @@ export function fetchThreads(courseId, {
   if (filters.status === PostsStatusFilter.UNANSWERED) {
     options.view = 'unanswered';
   }
+  if (filters.status === PostsStatusFilter.UNRESPONDED) {
+    options.view = 'unresponded';
+  }
   if (filters.status === PostsStatusFilter.REPORTED) {
     options.flagged = true;
   }

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

@@ -95,6 +95,10 @@ function PostFilterBar({
         // You can't filter discussions by unanswered so switch type to questions
         dispatch(setPostsTypeFilter(ThreadType.QUESTION));
       }
+      if (value === PostsStatusFilter.UNRESPONDED && currentType !== ThreadType.DISCUSSION) {
+        // You can't filter questions by not responded so switch type to discussion
+        dispatch(setPostsTypeFilter(ThreadType.DISCUSSION));
+      }
     }
     if (name === 'sort') {
       dispatch(setSortedBy(value));
@@ -200,6 +204,12 @@ function PostFilterBar({
                 value={PostsStatusFilter.UNANSWERED}
                 selected={currentFilters.status}
               />
+              <ActionItem
+                id="status-unresponded"
+                label={intl.formatMessage(messages.filterUnresponded)}
+                value={PostsStatusFilter.UNRESPONDED}
+                selected={currentFilters.status}
+              />
             </Form.RadioSet>
             <Form.RadioSet
               name="sort"

src/discussions/posts/post-filter-bar/messages.js

@@ -48,7 +48,7 @@ const messages = defineMessages({
   },
   filterUnresponded: {
     id: 'discussions.posts.status.filter.unresponded',
-    defaultMessage: 'Unresponded',
+    defaultMessage: 'Not responded',
     description: 'Option in dropdown to filter to unresponded posts',
   },
   myPosts: {