fix guided decoding ci test

Signed-off-by: shen-shanshan <467638484@qq.com>

Author: shen-shanshan

.github/workflows/vllm_ascend_test.yaml

@@ -110,9 +110,7 @@ jobs:
             VLLM_USE_MODELSCOPE=True pytest -sv tests/singlecard/test_offline_inference.py
             # AscendScheduler doesn't work, fix it later
             # pytest -sv tests/singlecard/tets_schedule.py
-            # guided decoding doesn't work, fix it later
-            # pytest -sv tests/singlecard/test_guided_decoding.py.py
-            pytest -sv tests/singlecard/ --ignore=tests/singlecard/test_offline_inference.py --ignore=tests/singlecard/test_scheduler.py --ignore=tests/singlecard/test_guided_decoding.py
+            pytest -sv tests/singlecard/ --ignore=tests/singlecard/test_offline_inference.py --ignore=tests/singlecard/test_scheduler.py
           else
             pytest -sv tests/multicard/test_ilama_lora_tp2.py
             VLLM_USE_MODELSCOPE=True pytest -sv tests/multicard/ --ignore=tests/multicard/test_ilama_lora_tp2.py
@@ -126,9 +124,7 @@ jobs:
             VLLM_USE_MODELSCOPE=True  pytest -sv tests/singlecard/test_offline_inference.py
             # AscendScheduler doesn't work, fix it later
             # pytest -sv tests/singlecard/tets_schedule.py
-            # guided decoding doesn't work, fix it later
-            # pytest -sv tests/singlecard/test_guided_decoding.py.py
-            pytest -sv tests/singlecard/ --ignore=tests/singlecard/test_offline_inference.py --ignore=tests/singlecard/test_scheduler.py --ignore=tests/singlecard/test_guided_decoding.py
+            pytest -sv tests/singlecard/ --ignore=tests/singlecard/test_offline_inference.py --ignore=tests/singlecard/test_scheduler.py
           else
             pytest -sv tests/multicard/test_ilama_lora_tp2.py
             # Fixme: run VLLM_USE_MODELSCOPE=True pytest -sv tests/multicard/test_offline_inference_distributed.py will raise error.

tests/singlecard/test_guided_decoding.py

@@ -29,12 +29,11 @@
 
 os.environ["PYTORCH_NPU_ALLOC_CONF"] = "max_split_size_mb:256"
 MODEL_NAME = "Qwen/Qwen2.5-1.5B-Instruct"
+
 GuidedDecodingBackendV0 = [
-    "outlines",
-    "lm-format-enforcer",
-    "xgrammar",
+    "auto", "outlines", "lm-format-enforcer", "xgrammar", "guidance"
 ]
-GuidedDecodingBackendV1 = ["xgrammar", "guidance:disable-any-whitespace"]
+GuidedDecodingBackendV1 = ["auto", "xgrammar", "guidance"]
 GuidedDecodingBackend = list(
     set(GuidedDecodingBackendV0 + GuidedDecodingBackendV1))