AO3-5977 Hide "Approve All Unreviewed Comments" button from admins on…

… works

Also hides "Approve All Unreviewed Comments" when there are no unreviewed comments.

app/views/comments/unreviewed.html.erb

@@ -3,10 +3,12 @@
 <!--/descriptions-->
 
 <!--Subnavigation, sorting and actions-->
-<ul class="navigation actions">
-  <% path = @commentable.is_a?(AdminPost) ? review_all_admin_post_comments_path(@commentable) : review_all_work_comments_path(@commentable) %>
-  <li><%= button_to(t(".approve_all"), path, method: :put) %></li>
-</ul>
+<% if @comments[0] && can_review_comment?(@comments[0]) %>
+  <ul class="navigation actions">
+    <% path = @commentable.is_a?(AdminPost) ? review_all_admin_post_comments_path(@commentable) : review_all_work_comments_path(@commentable) %>
+    <li><%= button_to(t(".approve_all"), path, method: :put) %></li>
+  </ul>
+<% end %>
 <!--/subnav-->
 
 <!--main content-->

features/admins/admin_works.feature

@@ -330,6 +330,19 @@ Feature: Admin Actions for Works, Comments, Series, Bookmarks
     Then I should see "rolex"
       And I should not see "This comment has been marked as spam."
 
+  Scenario: Moderated comments cannot be approved by admin
+    Given the moderated work "Moderation" by "author"
+      And I am logged in as "commenter"
+      And I post the comment "Test comment" on the work "Moderation"
+    When I am logged in as "author"
+      And I view the work "Moderation"
+    Then I should see "Unreviewed Comments (1)"
+      And the comment on "Moderation" should be marked as unreviewed
+    When I follow "Unreviewed Comments (1)"
+    Then I should see "Test comment"
+      And I should not see "Approve All Unreviewed Comments"
+      And I should not see "Approve"
+
   Scenario: Admin can edit language on works when posting without previewing
     Given basic languages
       And I am logged in as "regular_user"