We have 2 scripts to check the IMA enforce mode, and one of them is not covering other available modes. (fix/log/off modes)
File this new issue to track and fix it.

find . -type f |xargs grep 'IMA enforced'¶

./tests/security/ima/ima_appraisal_audit.pm: validate_script_output "grep -E 'ima_appraise=(fix|log|off)' /etc/default/grub || echo 'IMA enforced'", sub { m/IMA enforced/ };
./tests/security/ima/ima_verify.pm: validate_script_output "grep 'ima_appraise=fix' /etc/default/grub || echo 'IMA enforced'", sub { m/IMA enforced/ };

The fix is very simple, we can just modify the test logic as we do in "./tests/security/ima/ima_appraisal_audit.pm"