diff --git a/spec/controllers/admin/invites_controller_spec.rb b/spec/controllers/admin/invites_controller_spec.rb
index 34b51a6aa..449a699e4 100644
--- a/spec/controllers/admin/invites_controller_spec.rb
+++ b/spec/controllers/admin/invites_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 describe Admin::InvitesController do
@@ -40,4 +42,18 @@ describe Admin::InvitesController do
       expect(invite.reload).to be_expired
     end
   end
+
+  describe 'POST #deactivate_all' do
+    it 'expires all invites, then redirects to admin_invites_path' do
+      invites = Fabricate.times(2, :invite, expires_at: nil)
+
+      post :deactivate_all
+
+      invites.each do |invite|
+        expect(invite.reload).to be_expired
+      end
+
+      expect(response).to redirect_to admin_invites_path
+    end
+  end
 end