Improve PruneWebHookLogsWorker spec

spec/workers/prune_web_hook_logs_worker_spec.rb

@@ -5,18 +5,20 @@ describe PruneWebHookLogsWorker do
     before do
       hook = create(:project_hook)
 
-      5.times do
       create(:web_hook_log, web_hook: hook, created_at: 5.months.ago)
-      end
-
+      create(:web_hook_log, web_hook: hook, created_at: 4.months.ago)
+      create(:web_hook_log, web_hook: hook, created_at: 91.days.ago)
+      create(:web_hook_log, web_hook: hook, created_at: 89.days.ago)
+      create(:web_hook_log, web_hook: hook, created_at: 2.months.ago)
+      create(:web_hook_log, web_hook: hook, created_at: 1.month.ago)
       create(:web_hook_log, web_hook: hook, response_status: '404')
     end
 
-    it 'removes all web hook logs older than one month' do
+    it 'removes all web hook logs older than 90 days' do
       described_class.new.perform
 
-      expect(WebHookLog.count).to eq(1)
-      expect(WebHookLog.first.response_status).to eq('404')
+      expect(WebHookLog.count).to eq(4)
+      expect(WebHookLog.last.response_status).to eq('404')
     end
   end
 end