Files
sglang/test/srt/test_update_weights.py
2024-11-09 15:43:20 -08:00

109 lines
3.4 KiB
Python

import json
import unittest
import requests
from sglang.srt.utils import kill_child_process
from sglang.test.test_utils import (
DEFAULT_SMALL_MODEL_NAME_FOR_TEST,
DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
DEFAULT_URL_FOR_TEST,
popen_launch_server,
)
class TestUpdateWeights(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.model = DEFAULT_SMALL_MODEL_NAME_FOR_TEST
cls.base_url = DEFAULT_URL_FOR_TEST
cls.process = popen_launch_server(
cls.model, cls.base_url, timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH
)
@classmethod
def tearDownClass(cls):
kill_child_process(cls.process.pid, include_self=True)
def run_decode(self):
response = requests.post(
self.base_url + "/generate",
json={
"text": "The capital of France is",
"sampling_params": {
"temperature": 0,
"max_new_tokens": 32,
},
},
)
print(json.dumps(response.json()))
print("=" * 100)
text = response.json()["text"]
return text
def get_model_info(self):
response = requests.get(self.base_url + "/get_model_info")
model_path = response.json()["model_path"]
print(json.dumps(response.json()))
return model_path
def run_update_weights(self, model_path):
response = requests.post(
self.base_url + "/update_weights",
json={
"model_path": model_path,
},
)
ret = response.json()
print(json.dumps(response.json()))
return ret
def test_update_weights(self):
origin_model_path = self.get_model_info()
print(f"origin_model_path: {origin_model_path}")
origin_response = self.run_decode()
# update weights
new_model_path = DEFAULT_SMALL_MODEL_NAME_FOR_TEST.replace("-Instruct", "")
ret = self.run_update_weights(new_model_path)
assert ret["success"]
updated_model_path = self.get_model_info()
print(f"updated_model_path: {updated_model_path}")
assert updated_model_path == new_model_path
assert updated_model_path != origin_model_path
updated_response = self.run_decode()
assert origin_response[:32] != updated_response[:32]
# update weights back
ret = self.run_update_weights(origin_model_path)
assert ret["success"]
updated_model_path = self.get_model_info()
assert updated_model_path == origin_model_path
updated_response = self.run_decode()
assert origin_response[:32] == updated_response[:32]
def test_update_weights_unexist_model(self):
origin_model_path = self.get_model_info()
print(f"origin_model_path: {origin_model_path}")
origin_response = self.run_decode()
# update weights
new_model_path = DEFAULT_SMALL_MODEL_NAME_FOR_TEST.replace("-Instruct", "wrong")
ret = self.run_update_weights(new_model_path)
assert not ret["success"]
updated_model_path = self.get_model_info()
print(f"updated_model_path: {updated_model_path}")
assert updated_model_path == origin_model_path
updated_response = self.run_decode()
assert origin_response[:32] == updated_response[:32]
if __name__ == "__main__":
unittest.main()