1. Technical Terminology:
* Networking: In network troubleshooting, "self-test" refers to a diagnostic feature built into a network device that checks its own functionality. The device might have a "self-test" mode or a "loopback" test where it sends data to itself to check connectivity. It's possible "test to self connection" was used in this context, but it's not a standard term.
* Software: In software development, "self-test" refers to automated tests that a program runs on itself to verify its own functionality. However, "test to self connection" is not a standard term in this context.
2. Misunderstanding: It's possible there's a misunderstanding in the way the phrase was used. There might be other related terms that better describe the intended meaning.
3. Specific Context: Perhaps you encountered "test to self connection" in a specific domain or publication. If you can provide more context, such as where you saw this phrase or what it was referring to, I might be able to offer a more accurate interpretation.
Please provide more information or context, and I'll do my best to help you understand its meaning.