Add test for trying to delete account while an export is pending

spec/requests/user/registrations_controller_spec.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe User::RegistrationsController, type: :controller do
+  let(:user) { FactoryBot.create(:user, **user_params) }
+
+  describe "DELETE #destroy" do
+    subject { delete :destroy }
+
+    context "user has an export pending" do
+      let(:user_params) { { export_processing: true } }
+
+      before do
+        @request.env["devise.mapping"] = Devise.mappings[:user] # so that devise knows that we're testing the user controller
+        sign_in(user)
+      end
+
+      it "doesn't allow for the account to be deleted" do
+        subject
+        expect(flash[:error]).to eq(I18n.t("user.registrations.destroy.export_pending"))
+      end
+    end
+  end
+end