cmake, test: Introduce SECP256K1_TESTNAME_PREFIX variable #1582

1. 
   hebasto commented at 11:15 am on August 12, 2024: member

   This change enables downstream projects, such as Bitcoin Core, to add a custom prefix to the libsecp256k1 tests, facilitating the use of ctest regex matching options.

   For instance, after configuring with -DSECP256K1_TESTNAME_PREFIX="secp256k1_", a downstream project users can filter their tests like that:

   0ctest --tests-regex "secp256k1"
   

   or

   0ctest --exclude-regex "secp256k1"
   

2. cmake, test: Introduce `SECP256K1_TESTNAME_PREFIX` variable

   This change enables downstream projects to add a custom prefix to the
   libsecp256k1 tests, facilitating the use of `ctest` regex matching
   options.

   051af4ca62
3. 
   hebasto commented at 11:15 am on August 12, 2024: member

   cc @fanquake @theuni
4. real-or-random added the label feature on Aug 17, 2024
5. real-or-random added the label build on Aug 17, 2024
6. 
   real-or-random commented at 2:17 pm on August 17, 2024: contributor

   Concept ACK if this helps Core

Contributors
hebasto real-or-random

Labels
feature build