Files
sglang/test/registered/unit/entrypoints/test_ssl_cert_refresher.py
2026-03-23 00:18:45 -07:00

166 lines
5.1 KiB
Python

import asyncio
import os
import tempfile
import unittest
from unittest.mock import MagicMock
from sglang.srt.entrypoints.ssl_utils import SSLCertRefresher
from sglang.test.ci.ci_register import register_cpu_ci
from sglang.test.test_utils import CustomTestCase
register_cpu_ci(est_time=9, suite="stage-a-test-cpu")
def _make_temp_pem(content: bytes) -> str:
"""Create a temporary PEM file and return its path."""
f = tempfile.NamedTemporaryFile(suffix=".pem", delete=False)
f.write(content)
f.flush()
f.close()
return f.name
class TestSSLCertRefresher(CustomTestCase):
"""Tests for the SSLCertRefresher class."""
def setUp(self):
super().setUp()
self._temp_files: list[str] = []
def tearDown(self):
for path in self._temp_files:
try:
os.unlink(path)
except OSError:
pass
super().tearDown()
def _track(self, path: str) -> str:
"""Register a temp file for cleanup."""
self._temp_files.append(path)
return path
def _run_async(self, coro):
"""Helper to run an async coroutine in tests."""
loop = asyncio.new_event_loop()
try:
return loop.run_until_complete(coro)
finally:
loop.close()
def test_reload_cert_key_on_file_change(self):
"""SSLCertRefresher calls load_cert_chain when cert/key files change."""
mock_ctx = MagicMock()
cert_path = self._track(_make_temp_pem(b"CERT_V1"))
key_path = self._track(_make_temp_pem(b"KEY_V1"))
async def _test():
refresher = SSLCertRefresher(mock_ctx, key_path, cert_path)
await asyncio.sleep(0.3)
with open(cert_path, "w") as f:
f.write("CERT_V2")
await asyncio.sleep(1.5)
refresher.stop()
return mock_ctx
result_ctx = self._run_async(_test())
result_ctx.load_cert_chain.assert_called_with(cert_path, key_path)
def test_reload_ca_on_file_change(self):
"""SSLCertRefresher calls load_verify_locations when CA file changes."""
mock_ctx = MagicMock()
cert_path = self._track(_make_temp_pem(b"CERT"))
key_path = self._track(_make_temp_pem(b"KEY"))
ca_path = self._track(_make_temp_pem(b"CA_V1"))
async def _test():
refresher = SSLCertRefresher(mock_ctx, key_path, cert_path, ca_path)
await asyncio.sleep(0.3)
with open(ca_path, "w") as f:
f.write("CA_V2")
await asyncio.sleep(1.5)
refresher.stop()
return mock_ctx
result_ctx = self._run_async(_test())
result_ctx.load_verify_locations.assert_called_with(ca_path)
def test_stop_cancels_tasks(self):
"""Calling stop() prevents further reloads."""
mock_ctx = MagicMock()
cert_path = self._track(_make_temp_pem(b"CERT"))
key_path = self._track(_make_temp_pem(b"KEY"))
async def _test():
refresher = SSLCertRefresher(mock_ctx, key_path, cert_path)
await asyncio.sleep(0.2)
refresher.stop()
with open(cert_path, "w") as f:
f.write("CERT_AFTER_STOP")
await asyncio.sleep(1.0)
return mock_ctx
result_ctx = self._run_async(_test())
result_ctx.load_cert_chain.assert_not_called()
def test_no_ca_watcher_when_ca_not_provided(self):
"""No CA watcher task is created when ca_path is None."""
mock_ctx = MagicMock()
cert_path = self._track(_make_temp_pem(b"CERT"))
key_path = self._track(_make_temp_pem(b"KEY"))
async def _test():
refresher = SSLCertRefresher(mock_ctx, key_path, cert_path)
self.assertEqual(len(refresher._tasks), 1)
refresher.stop()
self._run_async(_test())
def test_ca_watcher_created_when_ca_provided(self):
"""A CA watcher task is created when ca_path is provided."""
mock_ctx = MagicMock()
cert_path = self._track(_make_temp_pem(b"CERT"))
key_path = self._track(_make_temp_pem(b"KEY"))
ca_path = self._track(_make_temp_pem(b"CA"))
async def _test():
refresher = SSLCertRefresher(mock_ctx, key_path, cert_path, ca_path)
self.assertEqual(len(refresher._tasks), 2)
refresher.stop()
self._run_async(_test())
def test_reload_error_does_not_crash(self):
"""A reload error is logged but doesn't crash the watcher."""
mock_ctx = MagicMock()
mock_ctx.load_cert_chain.side_effect = Exception("bad cert")
cert_path = self._track(_make_temp_pem(b"CERT"))
key_path = self._track(_make_temp_pem(b"KEY"))
async def _test():
refresher = SSLCertRefresher(mock_ctx, key_path, cert_path)
await asyncio.sleep(0.3)
with open(cert_path, "w") as f:
f.write("BAD_CERT")
await asyncio.sleep(1.5)
for task in refresher._tasks:
self.assertFalse(task.done())
refresher.stop()
self._run_async(_test())
if __name__ == "__main__":
unittest.main()