Update CI tests for Llama4 models (#6421)

test/srt/models/test_llama4_models.py

+import random
+import unittest
+from types import SimpleNamespace
+
+from sglang.srt.utils import kill_process_tree
+from sglang.test.few_shot_gsm8k import run_eval
+from sglang.test.test_utils import (
+    DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+    DEFAULT_URL_FOR_TEST,
+    CustomTestCase,
+    popen_launch_server,
+)
+
+MODELS = [
+    SimpleNamespace(
+        model="meta-llama/Llama-4-Scout-17B-16E-Instruct",
+        accuracy=0.9,
+        tp_size=4,
+    ),
+]
+
+
+class TestLlama4(CustomTestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.base_url = DEFAULT_URL_FOR_TEST
+
+    def test_gsm8k(self):
+
+        for model in MODELS:
+            try:
+                process = popen_launch_server(
+                    model.model,
+                    self.base_url,
+                    timeout=3 * DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+                    other_args=[
+                        "--chat-template",
+                        "llama-4",
+                        "--tp-size",
+                        str(model.tp_size),
+                        "--mem-fraction-static",
+                        "0.8",
+                        "--context-length",
+                        "8192",
+                    ],
+                )
+                args = SimpleNamespace(
+                    num_shots=5,
+                    data_path=None,
+                    num_questions=200,
+                    max_new_tokens=512,
+                    parallel=128,
+                    host="http://127.0.0.1",
+                    port=int(self.base_url.split(":")[-1]),
+                )
+                metrics = run_eval(args)
+                print(f"{metrics=}")
+                self.assertGreaterEqual(metrics["accuracy"], model.accuracy)
+            except Exception as e:
+                print(f"Error testing {model.model}: {e}")
+                self.fail(f"Test failed for {model.model}: {e}")
+
+            finally:
+                # Ensure process cleanup happens regardless of success/failure
+                if process is not None and process.poll() is None:
+                    print(f"Cleaning up process {process.pid}")
+                    try:
+                        kill_process_tree(process.pid)
+                    except Exception as e:
+                        print(f"Error killing process: {e}")
+
+
+if __name__ == "__main__":
+    unittest.main()