Allow undo votes in comments votes component

spec/controllers/comments/votes_controller_spec.rb

@@ -12,4 +12,23 @@ describe Comments::VotesController do
       end.to change { comment.reload.votes_for.size }.by(1)
     end
   end
+
+  describe "DELETE destroy" do
+    let(:user) { create(:user) }
+    let!(:vote) { create(:vote, votable: comment, voter: user) }
+
+    it "redirects unidentified users to the sign in page" do
+      delete :destroy, params: { comment_id: comment.id, id: vote }
+
+      expect(response).to redirect_to new_user_session_path
+    end
+
+    it "allows undoing a vote" do
+      sign_in user
+
+      expect do
+        delete :destroy, xhr: true, params: { comment_id: comment.id, id: vote }
+      end.to change { comment.reload.votes_for.size }.by(-1)
+    end
+  end
 end