it "unassigns the post"

spec/system/assigned_post_popup_menu_spec.rb

@@ -18,14 +18,15 @@
     sign_in(admin)
   end
 
-  it "shows ellipsis button on assigned posts" do
+  it "shows the more button on assigned posts" do
     visit "/t/#{topic.id}"
-    expect(topic_page).to have_ellipsis_button_on_post(2)
+    expect(topic_page).to have_more_button_on_post(2)
   end
 
   it "unassigns the post" do
     visit "/t/#{topic.id}"
-    # post.click_ellipsis_button
+    topic_page.click_more_button_on_post(2)
+    expect(topic_page).to have_more_button_on_post(2)
     # post.click_unassign
     # expect(popup_menu).to be_closed
     # expect(post).to not_have_assigned

spec/system/page_objects/pages/topic.rb

@@ -17,12 +17,16 @@ def click_edit_topic_assignment
         find("[data-value='reassign']").click
       end
 
+      def click_more_button_on_post(post_number)
+        find("article#post_#{post_number} p.assigned-to button.more-button").click
+      end
+
       def has_assigned?(args)
         has_assignment_action?(action: "assigned", **args)
       end
 
-      def has_ellipsis_button_on_post?(post_number)
-        page.has_selector?("article#post_#{post_number} p.assigned-to")
+      def has_more_button_on_post?(post_number)
+        page.has_selector?("article#post_#{post_number} p.assigned-to button.more-button")
       end
 
       def has_unassigned?(args)