feat(client): add durable HTTP task state

2026-08-05 00:59:32 +08:00
parent 488005ac93
commit 31f07ac245
37 changed files with 4654 additions and 20 deletions
@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+import os
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import unittest
+
+from cmbuyer_client.core.errors import SingleInstanceError
+from cmbuyer_client.localstate.single_instance import NamedMutex
+
+
+@unittest.skipUnless(os.name == "nt", "named mutex 仅在 Windows 验证")
+class NamedMutexTests(unittest.TestCase):
+    def test_second_process_for_same_database_is_rejected(self) -> None:
+        with tempfile.TemporaryDirectory() as directory:
+            database = Path(directory) / "state.sqlite3"
+            first = NamedMutex(database)
+            try:
+                with self.assertRaises(SingleInstanceError):
+                    NamedMutex(database)
+                code = (
+                    "from pathlib import Path; "
+                    "from cmbuyer_client.localstate.single_instance import NamedMutex; "
+                    "from cmbuyer_client.core.errors import SingleInstanceError; "
+                    f"p=Path({str(database)!r}); "
+                    "\ntry:\n NamedMutex(p)\nexcept SingleInstanceError:\n raise SystemExit(17)\nraise SystemExit(0)"
+                )
+                environment = dict(os.environ)
+                environment["PYTHONPATH"] = str(Path(__file__).resolve().parents[2] / "src")
+                result = subprocess.run([sys.executable, "-c", code], env=environment, check=False)
+                self.assertEqual(result.returncode, 17)
+            finally:
+                first.close()
+
+            with NamedMutex(database):
+                pass