### What this PR does / why we need it?
test func wrapper file
### Does this PR introduce _any_ user-facing change?
N/A
### How was this patch tested?
CI passed with new added test.
- vLLM version: v0.9.2
- vLLM main:
8dfb45ca33
Signed-off-by: lixudong <lixudong@cmss.chinamobile.com>
