test_runner: fix lazy test.assert accessor
#79067
| Job | Run time |
|---|---|
| 39m 9s | |
| 30m 45s | |
| 1h 9m 54s |
test.assert accessor
#79067
| Job | Run time |
|---|---|
| 39m 9s | |
| 30m 45s | |
| 1h 9m 54s |