Add basic coverage for some worker jobs (#23943)

spec/workers/admin/account_deletion_worker_spec.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe Admin::AccountDeletionWorker do
+  let(:worker) { described_class.new }
+
+  describe 'perform' do
+    let(:account) { Fabricate(:account) }
+    let(:service) { instance_double(DeleteAccountService, call: true) }
+
+    it 'calls delete account service' do
+      allow(DeleteAccountService).to receive(:new).and_return(service)
+      worker.perform(account.id)
+
+      expect(service).to have_received(:call).with(account, { reserve_email: true, reserve_username: true })
+    end
+  end
+end