Questions about software engineering unrelated to testing are off-topic here, but can be asked on Programmers Stack Exchange.
A couple of problems with this close reason:
- Programmers Stack Exchange rebranded to Software Engineering Stack Exchange in 2016. Minimally change the name in the text. Links to programmers.stackexchange.com do redirect.
- Instead of linking to the /about page, consider linking to Software Engineering's Help Center page for on-topic questions. This page is a better outline of what is on- and off-topic on Software Engineering and may help people who see the close banner understand if they should visit and ask their question.
- The current wording may imply that testing questions are off-topic on Software Engineering. Quality assurance, testing, verification, and validation are all on-topic, as long as they aren't about writing code (including test code), support for a specific product or tool, or seeking recommendations for a specific product or tool.