AO3-7399 Add username to Challenge Assignments page title

app/controllers/challenge_assignments_controller.rb

@@ -72,6 +72,7 @@ def assignments_not_sent
   def index
     if params[:user_id] && (@user = User.find_by(login: params[:user_id]))
       if current_user == @user
+        @page_subtitle = t(".page_title", username: @user.login)
         @challenge_assignments = @user.assignments.undefaulted
         @challenge_assignments = @challenge_assignments.in_collection(@collection) if params[:collection_id] && (@collection = Collection.find_by(name: params[:collection_id]))
         @challenge_assignments = if params[:posted] == "true"

config/locales/controllers/en.yml

@@ -106,6 +106,7 @@ en:
   challenge_assignments:
     index:
       access_denied_user: You aren't allowed to see that user's assignments.
+      page_title: "%{username} - Challenge Assignments"
     update_multiple:
       approve_error: We couldn't approve the assignment for %{request}.
     validation:

spec/controllers/challenge_assignments_controller_spec.rb

@@ -410,6 +410,12 @@
         expect(assigns[:challenge_assignments]).not_to include(defaulted_assignment)
         expect(response).to render_template(:index)
       end
+
+      it "shows the username in the page title" do
+        get :index, params: { user_id: user.login }
+        expect(response).to have_http_status(:success)
+        expect(assigns[:page_subtitle]).to eq("#{user.login} - Challenge Assignments")
+      end
     end
 
     context "when logged in as the owner of a defaulted assignment" do