Fix leaky constant in sidekiq middleware spec

.rubocop.yml

@@ -375,7 +375,6 @@ RSpec/LeakyConstantDeclaration:
     - 'spec/lib/gitlab/quick_actions/dsl_spec.rb'
     - 'spec/lib/gitlab/sidekiq_middleware/client_metrics_spec.rb'
     - 'spec/lib/gitlab/sidekiq_middleware/server_metrics_spec.rb'
-    - 'spec/lib/gitlab/sidekiq_middleware_spec.rb'
     - 'spec/lib/gitlab/view/presenter/factory_spec.rb'
     - 'spec/lib/marginalia_spec.rb'
     - 'spec/lib/omni_auth/strategies/jwt_spec.rb'

changelogs/unreleased/leaky-constant-fix-27.yml

+---
+title: Fix leaky constant issue in sidekiq middleware spec
+merge_request: 32101
+author: Rajendra Kadam
+type: fixed

spec/lib/gitlab/sidekiq_middleware_spec.rb

@@ -4,7 +4,10 @@ require 'spec_helper'
 require 'sidekiq/testing'
 
 describe Gitlab::SidekiqMiddleware do
-  class TestWorker
+  before do
+    stub_const('TestWorker', Class.new)
+
+    TestWorker.class_eval do
       include Sidekiq::Worker
 
       def perform(_arg)
@@ -12,6 +15,7 @@ describe Gitlab::SidekiqMiddleware do
         Gitlab::GitalyClient.query_time = 5
       end
     end
+  end
 
   around do |example|
     Sidekiq::Testing.inline! { example.run }