From b72f9f08c11a4655f283b4d2b72f75fdce2ec5f6 Mon Sep 17 00:00:00 2001
From: Johnsonms <lizhaofu@gmail.com>
Date: Sat, 25 Oct 2025 17:07:37 -0700
Subject: [PATCH] [Test] Add dsv3.2 nsa backend testing (#11936)

---
 test/srt/run_suite.py                    |   1 +
 test/srt/test_deepseek_v32_nsabackend.py | 124 +++++++++++++++++++++++
 2 files changed, 125 insertions(+)
 create mode 100644 test/srt/test_deepseek_v32_nsabackend.py

diff --git a/test/srt/run_suite.py b/test/srt/run_suite.py
index ec0dd6018..29073e15d 100644
--- a/test/srt/run_suite.py
+++ b/test/srt/run_suite.py
@@ -191,6 +191,7 @@ suites = {
     "per-commit-8-gpu-h200-deepseek-v32": [
         TestFile("test_deepseek_v32_basic.py", 275),
         TestFile("test_deepseek_v32_mtp.py", 275),
+        TestFile("test_deepseek_v32_nsabackend.py", 600),
     ],
     "vllm_dependency_test": [
         TestFile("quant/test_awq.py", 163),
diff --git a/test/srt/test_deepseek_v32_nsabackend.py b/test/srt/test_deepseek_v32_nsabackend.py
new file mode 100644
index 000000000..1f9975f45
--- /dev/null
+++ b/test/srt/test_deepseek_v32_nsabackend.py
@@ -0,0 +1,124 @@
+import unittest
+from types import SimpleNamespace
+
+from sglang.srt.utils import kill_process_tree
+from sglang.test.few_shot_gsm8k import run_eval as run_eval_few_shot_gsm8k
+from sglang.test.send_one import BenchArgs, send_one_prompt
+from sglang.test.test_utils import (
+    DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+    DEFAULT_URL_FOR_TEST,
+    CustomTestCase,
+    is_in_ci,
+    popen_launch_server,
+    write_github_step_summary,
+)
+
+DEEPSEEK_V32_MODEL_PATH = "deepseek-ai/DeepSeek-V3.2-Exp"
+
+
+class TestDeepseekV32NasBackend_flashmla(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.model = DEEPSEEK_V32_MODEL_PATH
+        cls.base_url = DEFAULT_URL_FOR_TEST
+        other_args = [
+            "--trust-remote-code",
+            "--attention-backend",
+            "nsa",
+            "--nsa-prefill-backend",
+            "flashmla_sparse",
+            "--nsa-decode-backend",
+            "flashmla_kv",
+            "--tp",
+            "8",
+            "--dp",
+            "8",
+            "--enable-dp-attention",
+        ]
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=other_args,
+        )
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_a_gsm8k(
+        self,
+    ):  # Append an "a" to make this test run first (alphabetically) to warm up the server
+        args = SimpleNamespace(
+            num_shots=8,
+            data_path=None,
+            num_questions=1400,
+            parallel=1400,
+            max_new_tokens=512,
+            host="http://127.0.0.1",
+            port=int(self.base_url.split(":")[-1]),
+        )
+        metrics = run_eval_few_shot_gsm8k(args)
+        print(f"{metrics=}")
+
+        if is_in_ci():
+            write_github_step_summary(
+                f"### test_gsm8k (deepseek-v3)\n" f'{metrics["accuracy"]=:.3f}\n'
+            )
+            self.assertGreater(metrics["accuracy"], 0.935)
+
+
+class TestDeepseekV32NasBackend_fa3(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.model = DEEPSEEK_V32_MODEL_PATH
+        cls.base_url = DEFAULT_URL_FOR_TEST
+        other_args = [
+            "--trust-remote-code",
+            "--attention-backend",
+            "nsa",
+            "--nsa-prefill-backend",
+            "fa3",
+            "--nsa-decode-backend",
+            "fa3",
+            "--tp",
+            "8",
+            "--dp",
+            "8",
+            "--enable-dp-attention",
+        ]
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=other_args,
+        )
+
+    @classmethod
+    def tearDownClass(cls):
+        kill_process_tree(cls.process.pid)
+
+    def test_a_gsm8k(
+        self,
+    ):  # Append an "a" to make this test run first (alphabetically) to warm up the server
+        args = SimpleNamespace(
+            num_shots=8,
+            data_path=None,
+            num_questions=1400,
+            parallel=1400,
+            max_new_tokens=512,
+            host="http://127.0.0.1",
+            port=int(self.base_url.split(":")[-1]),
+        )
+        metrics = run_eval_few_shot_gsm8k(args)
+        print(f"{metrics=}")
+
+        if is_in_ci():
+            write_github_step_summary(
+                f"### test_gsm8k (deepseek-v3)\n" f'{metrics["accuracy"]=:.3f}\n'
+            )
+            self.assertGreater(metrics["accuracy"], 0.935)
+
+
+if __name__ == "__main__":
+    unittest.main()