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

spec/workers/webhooks/delivery_worker_spec.rb

@@ -5,9 +5,21 @@ require 'rails_helper'
 describe Webhooks::DeliveryWorker do
   let(:worker) { described_class.new }
 
-  describe 'perform' do
-    it 'runs without error' do
-      expect { worker.perform(nil, nil) }.to_not raise_error
+  describe '#perform' do
+    let(:webhook) { Fabricate(:webhook) }
+
+    it 'reprocesses and updates the webhook' do
+      stub_request(:post, webhook.url).to_return(status: 200, body: '')
+
+      worker.perform(webhook.id, 'body')
+
+      expect(a_request(:post, webhook.url)).to have_been_made.at_least_once
+    end
+
+    it 'returns true for non-existent record' do
+      result = worker.perform(123_123_123, '')
+
+      expect(result).to be(true)
     end
   end
 end