unittests: use property for rarely used directories
#577
| Job | Run time |
|---|---|
| 8m 29s | |
| 2m 24s | |
| 10m 53s |
property for rarely used directories
#577
| Job | Run time |
|---|---|
| 8m 29s | |
| 2m 24s | |
| 10m 53s |