Under the initiative, either Singapore Changi Airport (SIN) or Seletar Airport (XSP) will be used as a testbed to co-develop what CAAS describes as a “comprehensive readiness framework” for integrating open-fan engines and next-generation aircraft into existing airport operations. The work will cover aircraft and engine design considerations, airport infrastructure modifications, changes to operational procedures, safety standards and regulatory processes.
Turbofans are tested by shooting a standardized frozen turkey into them. The engine must survive to be qualified.
I'm sure a bad luck event can have birds stuck inside, but in most cases they go all the way through.
Edit: found this reference: https://www.ecfr.gov/current/title-14/chapter-I/subchapter-C/part-33/subpart-E/section-33.76
And this video: https://www.youtube.com/watch?v=VBHJvSJoX4k Not sure if it's the right thing, some comments say it's a blade separation test, which is much more violent than bird ingestion.