Files
Gitea-Tools/tests/test_allocator_service.py
T
sysadmin db5d14184f feat: controller-owned allocator API on control-plane DB (Closes #600)
Add gitea_allocate_next_work and allocator_service routing policy on top of
the #613 ControlPlaneDB substrate. Workers get atomic assign+lease results
(or wait/no_safe_work/terminal-path outcomes) without self-selecting work
via file locks or comment-only leases. #612 remains downstream.

Closes #600
2026-07-10 02:54:20 -04:00

367 lines
12 KiB
Python

"""Tests for controller-owned allocator (#600) on control-plane DB (#613)."""
from __future__ import annotations
import os
import tempfile
import threading
import unittest
from concurrent.futures import ThreadPoolExecutor, as_completed
from allocator_service import (
OUTCOME_ASSIGNED,
OUTCOME_BLOCKED_TERMINAL,
OUTCOME_NO_SAFE,
OUTCOME_PREVIEW,
OUTCOME_WAIT,
WorkCandidate,
allocate_next_work,
candidate_from_dict,
classify_skip,
expected_role_for_candidate,
)
from control_plane_db import ControlPlaneDB, InvalidWorkKindError
class AllocatorServiceTest(unittest.TestCase):
def setUp(self) -> None:
self._tmp = tempfile.TemporaryDirectory()
self.db_path = os.path.join(self._tmp.name, "cp.sqlite3")
self.db = ControlPlaneDB(self.db_path)
def tearDown(self) -> None:
self._tmp.cleanup()
def _alloc(self, **kwargs):
defaults = dict(
db=self.db,
session_id="s-test",
role="author",
remote="prgs",
org="org",
repo="repo",
candidates=[],
apply=False,
profile_name="prgs-author",
username="jcwalker3",
)
defaults.update(kwargs)
return allocate_next_work(**defaults)
def test_selects_ready_issue_for_author(self) -> None:
cands = [
WorkCandidate(
kind="issue",
number=612,
labels=("status:ready",),
title="bridge",
dependency_unmet=True,
dependency_reason="downstream of #600",
),
WorkCandidate(
kind="issue",
number=600,
labels=("status:ready", "type:feature"),
title="allocator",
priority=50,
),
WorkCandidate(
kind="issue",
number=601,
labels=("status:blocked",),
title="blocked",
blocked=True,
),
]
res = self._alloc(candidates=cands, apply=False)
self.assertTrue(res["success"])
self.assertEqual(res["outcome"], OUTCOME_PREVIEW)
self.assertEqual(res["selected"]["number"], 600)
self.assertEqual(res["selected"]["kind"], "issue")
# When 600 is highest priority valid work, lower-priority blocked/dep
# candidates are not visited. Prove they are skipped when they sort first.
res2 = self._alloc(
candidates=[
WorkCandidate(
kind="issue",
number=612,
labels=("status:ready",),
priority=99,
dependency_unmet=True,
dependency_reason="downstream of #600",
),
WorkCandidate(
kind="issue",
number=601,
labels=("status:blocked",),
priority=98,
blocked=True,
),
WorkCandidate(
kind="issue",
number=600,
labels=("status:ready",),
priority=1,
),
],
apply=False,
)
skipped_nums = {s["number"] for s in res2["skipped"]}
self.assertIn(612, skipped_nums)
self.assertIn(601, skipped_nums)
self.assertEqual(res2["selected"]["number"], 600)
self.assertIsNone(res["assignment"])
self.assertFalse(res["file_lock_only"])
self.assertFalse(res["comment_lease_only"])
def test_atomic_assign_and_lease_on_apply(self) -> None:
cands = [
WorkCandidate(
kind="issue",
number=600,
labels=("status:ready",),
priority=10,
)
]
res = self._alloc(candidates=cands, apply=True, session_id="s-a")
self.assertEqual(res["outcome"], OUTCOME_ASSIGNED)
asn = res["assignment"]
self.assertEqual(asn["outcome"], "assigned")
self.assertIsNotNone(asn["assignment_id"])
self.assertIsNotNone(asn["lease_id"])
self.assertEqual(asn["work_number"], 600)
self.assertIn("implement", asn["allowed_actions"])
self.assertIn("merge", asn["forbidden_actions"])
proof = res["lease_proof"]
self.assertEqual(proof["source"], "control_plane_db.assign_and_lease")
def test_concurrent_allocators_no_double_assign(self) -> None:
cand = WorkCandidate(
kind="pr",
number=100,
head_sha="a" * 40,
priority=10,
)
# Seed work item so both race the same target
self.db.upsert_work_item(
remote="prgs",
org="org",
repo="repo",
kind="pr",
number=100,
current_head_sha="a" * 40,
)
results = []
lock = threading.Lock()
def worker(sid: str):
r = allocate_next_work(
self.db,
session_id=sid,
role="reviewer",
remote="prgs",
org="org",
repo="repo",
candidates=[cand],
apply=True,
profile_name="prgs-reviewer",
)
with lock:
results.append(r)
with ThreadPoolExecutor(max_workers=2) as pool:
futs = [pool.submit(worker, f"s-{i}") for i in range(2)]
for f in as_completed(futs):
f.result()
outcomes = [r["outcome"] for r in results]
self.assertEqual(outcomes.count(OUTCOME_ASSIGNED), 1, outcomes)
self.assertEqual(outcomes.count(OUTCOME_WAIT), 1, outcomes)
def test_blocked_and_dependency_skipped(self) -> None:
cands = [
WorkCandidate(kind="issue", number=1, blocked=True, labels=("status:blocked",)),
WorkCandidate(
kind="issue",
number=612,
labels=("status:ready",),
dependency_unmet=True,
dependency_reason="downstream of #600",
),
]
res = self._alloc(candidates=cands, apply=True, role="author")
self.assertEqual(res["outcome"], OUTCOME_NO_SAFE)
self.assertIsNone(res["selected"])
reasons = " ".join(s["reason"] for s in res["skipped"])
self.assertIn("blocked", reasons.lower())
self.assertIn("600", reasons)
def test_already_leased_returns_wait(self) -> None:
self.db.upsert_session(session_id="owner", role="author")
self.db.assign_and_lease(
session_id="owner",
role="author",
remote="prgs",
org="org",
repo="repo",
kind="issue",
number=50,
)
res = self._alloc(
session_id="other",
candidates=[
WorkCandidate(kind="issue", number=50, labels=("status:ready",))
],
apply=True,
)
self.assertEqual(res["outcome"], OUTCOME_WAIT)
self.assertEqual(res["owner_session_id"], "owner")
def test_role_ineligible_skipped(self) -> None:
# PR with current-head REQUEST_CHANGES expects author, not reviewer.
cand = WorkCandidate(
kind="pr",
number=9,
head_sha="b" * 40,
request_changes_current_head=True,
)
self.assertEqual(expected_role_for_candidate(cand), "author")
res = self._alloc(
role="reviewer",
profile_name="prgs-reviewer",
candidates=[cand],
apply=False,
)
self.assertEqual(res["outcome"], OUTCOME_NO_SAFE)
self.assertTrue(any("expects role" in s["reason"] for s in res["skipped"]))
def test_terminal_lock_blocks_downstream_reviewer_prs(self) -> None:
self.db.set_terminal_lock(
remote="prgs",
org="org",
repo="repo",
terminal_pr=10,
decision="request_changes",
status="active",
)
cands = [
WorkCandidate(kind="pr", number=11, head_sha="c" * 40, priority=5),
WorkCandidate(kind="pr", number=10, head_sha="d" * 40, priority=1),
]
res = self._alloc(
role="reviewer",
profile_name="prgs-reviewer",
candidates=cands,
apply=False,
)
# Terminal PR #10 is selectable; #11 skipped for terminal path.
self.assertEqual(res["selected"]["number"], 10)
self.assertTrue(
any(
s["number"] == 11 and "terminal-review lock" in s["reason"]
for s in res["skipped"]
)
)
def test_terminal_lock_blocks_all_when_only_downstream(self) -> None:
self.db.set_terminal_lock(
remote="prgs",
org="org",
repo="repo",
terminal_pr=10,
decision="request_changes",
status="active",
)
res = self._alloc(
role="reviewer",
profile_name="prgs-reviewer",
candidates=[
WorkCandidate(kind="pr", number=99, head_sha="e" * 40),
],
apply=False,
)
self.assertEqual(res["outcome"], OUTCOME_BLOCKED_TERMINAL)
def test_no_work_structured(self) -> None:
res = self._alloc(candidates=[], apply=True)
self.assertEqual(res["outcome"], OUTCOME_NO_SAFE)
self.assertIsNone(res["selected"])
self.assertTrue(res["reasons"])
def test_rejects_incident_kind(self) -> None:
with self.assertRaises(InvalidWorkKindError):
WorkCandidate(kind="sentry_incident", number=1)
def test_612_downstream_marker_in_result(self) -> None:
res = self._alloc(
candidates=[
WorkCandidate(kind="issue", number=600, labels=("status:ready",))
],
apply=True,
)
self.assertIn("612", res.get("downstream_note", ""))
def test_substrate_not_file_or_comment_lease(self) -> None:
res = self._alloc(
candidates=[
WorkCandidate(kind="issue", number=1, labels=("status:ready",))
],
apply=True,
)
self.assertEqual(res["substrate"], "control_plane_db")
self.assertFalse(res["file_lock_only"])
self.assertFalse(res["comment_lease_only"])
self.assertEqual(
res["lease_proof"]["source"], "control_plane_db.assign_and_lease"
)
def test_candidate_from_dict(self) -> None:
c = candidate_from_dict(
{
"kind": "pr",
"number": 7,
"head_sha": "f" * 40,
"approval_on_current_head": True,
"mergeable": True,
}
)
self.assertEqual(expected_role_for_candidate(c), "merger")
def test_merger_gets_clean_approval(self) -> None:
c = WorkCandidate(
kind="pr",
number=3,
head_sha="1" * 40,
approval_on_current_head=True,
mergeable=True,
priority=100,
)
res = self._alloc(
role="merger",
profile_name="prgs-merger",
candidates=[c],
apply=True,
session_id="merger-1",
)
self.assertEqual(res["outcome"], OUTCOME_ASSIGNED)
self.assertEqual(res["assignment"]["work_number"], 3)
self.assertIn("merge", res["assignment"]["allowed_actions"])
def test_db_unavailable_fails_closed(self) -> None:
res = allocate_next_work(
None, # type: ignore[arg-type]
session_id="x",
role="author",
remote="prgs",
org="o",
repo="r",
candidates=[],
apply=True,
)
self.assertFalse(res["success"])
self.assertIn("unavailable", res["reasons"][0].lower())
if __name__ == "__main__":
unittest.main()