Disable async assert in Nemotron nightly tests (#27838)

test/registered/4-gpu-models/test_nvidia_nemotron_3_super_nvfp4.py

@@ -1,6 +1,7 @@
 import unittest
 from types import SimpleNamespace
 
+from sglang.srt.environ import envs
 from sglang.srt.utils import kill_process_tree
 from sglang.test.ci.ci_register import register_cuda_ci
 from sglang.test.run_eval import run_eval
@@ -69,6 +70,7 @@ class TestNvidiaNemotron3SuperNVFP4(CustomTestCase):
     def setUpClass(cls):
         cls.model = NEMOTRON_3_SUPER_NVFP4_MODEL
         cls.base_url = DEFAULT_URL_FOR_TEST
+        with envs.SGLANG_ENABLE_ASYNC_ASSERT.override(0):
             cls.process = popen_launch_server(
                 cls.model,
                 cls.base_url,
@@ -89,6 +91,7 @@ class TestNvidiaNemotron3SuperNVFP4MTP(CustomTestCase):
     def setUpClass(cls):
         cls.model = NEMOTRON_3_SUPER_NVFP4_MODEL
         cls.base_url = DEFAULT_URL_FOR_TEST
+        with envs.SGLANG_ENABLE_ASYNC_ASSERT.override(0):
             cls.process = popen_launch_server(
                 cls.model,
                 cls.base_url,

test/registered/8-gpu-models/test_nvidia_nemotron_3_super_nightly.py

@@ -1,5 +1,6 @@
 import unittest
 
+from sglang.srt.environ import envs
 from sglang.test.accuracy_test_runner import AccuracyTestParams
 from sglang.test.ci.ci_register import register_cuda_ci
 from sglang.test.performance_test_runner import PerformanceTestParams
@@ -76,6 +77,7 @@ class TestNvidiaNemotron3SuperNightly(unittest.TestCase):
             ),
         ]
 
+        with envs.SGLANG_ENABLE_ASYNC_ASSERT.override(0):
             run_combined_tests(
                 models=variants,
                 test_name="Nemotron-3-Super-120B-BF16",
@@ -112,6 +114,7 @@ class TestNvidiaNemotron3SuperNightly(unittest.TestCase):
             ),
         ]
 
+        with envs.SGLANG_ENABLE_ASYNC_ASSERT.override(0):
             run_combined_tests(
                 models=variants,
                 test_name="Nemotron-3-Super-120B-NVFP4",