-available=$(find "$TEST_DIRECTORY" -maxdepth 1 -type f -executable -printf '%f\n' | \
- sed -r -e "/^(aggregate-results.sh|notmuch-test|smtp-dummy|test-verbose)$/d" | \
- sort)
+available=$(find "$TEST_DIRECTORY" -maxdepth 1 -type f \
+ '(' -perm -100 -o -perm -10 -o -perm -1 ')' \
+ ! -name aggregate-results.sh \
+ ! -name arg-test \
+ ! -name hex-xcode \
+ ! -name notmuch-test \
+ ! -name parse-time \
+ ! -name random-corpus \
+ ! -name smtp-dummy \
+ ! -name symbol-test \
+ ! -name test-verbose \
+ | sed 's,.*/,,' | sort)