### What this PR does / why we need it?
Add UT for patches in vLLM Ascend
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Irrelevant
- vLLM version: v0.9.2
- vLLM main:
107111a859
Signed-off-by: Pr0Wh1teGivee <calvin_zhu0210@outlook.com>