Ensure push subscription is immediately removed when application is revoked (#7548)

* Ensure push subscription is immediately removed when application is revoked

* When token is revoked from app, unsubscribe too

spec/controllers/oauth/tokens_controller_spec.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Oauth::TokensController, type: :controller do
+  describe 'POST #revoke' do
+    let!(:user) { Fabricate(:user) }
+    let!(:access_token) { Fabricate(:accessible_access_token, resource_owner_id: user.id) }
+    let!(:web_push_subscription) { Fabricate(:web_push_subscription, user: user, access_token: access_token) }
+
+    before do
+      post :revoke, params: { token: access_token.token }
+    end
+
+    it 'revokes the token' do
+      expect(access_token.reload.revoked_at).to_not be_nil
+    end
+
+    it 'removes web push subscription for token' do
+      expect(Web::PushSubscription.where(access_token: access_token).count).to eq 0
+    end
+  end
+end