Might be worth keeping an eye on these active projects:
https://github.com/AVEx-6502/main - parent project, includes a 6502 test suite
https://github.com/AVEx-6502/qemu-6502 - a fork of qemu

This is the test suite master script:
https://github.com/AVEx-6502/main/blob/ ... untests.sh

Each test has a golden output file to compare against the actual output. The tests include an address quirks test for address wrapping of various sorts.

Cheers
Ed