Improve spec coverage for collection of workers/ classes (#27874)

spec/workers/admin/suspension_worker_spec.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe Admin::SuspensionWorker do
+  let(:worker) { described_class.new }
+  let(:service) { instance_double(SuspendAccountService, call: true) }
+
+  describe '#perform' do
+    before do
+      allow(SuspendAccountService).to receive(:new).and_return(service)
+    end
+
+    let(:account) { Fabricate(:account) }
+
+    it 'sends the account to the service' do
+      worker.perform(account.id)
+
+      expect(service).to have_received(:call).with(account)
+    end
+
+    it 'returns true for non-existent record' do
+      result = worker.perform(123_123_123)
+
+      expect(result).to be(true)
+    end
+  end
+end