fix: resolve reviewer preflight capability/lease deadlock and add gitea_release_reviewer_pr_lease tool (closes #546)

This commit is contained in:
2026-07-08 15:29:18 -04:00
parent eeadb1bbea
commit dfbee45309
2 changed files with 287 additions and 1 deletions
+165
View File
@@ -3965,3 +3965,168 @@ class TestPreflightVerification(unittest.TestCase):
self.assertIn("worktree_path argument", msg)
self.assertIn("task_file.py", msg)
self.assertIn("author namespace", msg)
class TestIssue546Deadlock(unittest.TestCase):
def setUp(self):
import reviewer_pr_lease
import review_workflow_load
import mcp_server
reviewer_pr_lease.clear_session_lease()
review_workflow_load.clear_review_workflow_load()
mcp_server._preflight_capability_called = False
mcp_server._preflight_resolved_role = None
mcp_server._REVIEW_DECISION_LOCK = None
self.auth_user_patch = patch("mcp_server._authenticated_username", return_value="reviewer-bot")
self.auth_user_patch.start()
self.addCleanup(self.auth_user_patch.stop)
self.verify_purity_patch = patch("mcp_server.verify_preflight_purity", return_value=None)
self.verify_purity_patch.start()
self.addCleanup(self.verify_purity_patch.stop)
self.verify_workspace_patch = patch("mcp_server._verify_role_mutation_workspace", return_value="/workspace")
self.verify_workspace_patch.start()
self.addCleanup(self.verify_workspace_patch.stop)
self.get_profile_patch = patch("mcp_server.get_profile", return_value={
"profile_name": "prgs-reviewer",
"allowed_operations": ["gitea.read", "gitea.pr.comment", "gitea.pr.review", "gitea.pr.approve"],
"forbidden_operations": [],
})
self.get_profile_patch.start()
self.addCleanup(self.get_profile_patch.stop)
self.pr_work_lease_patch = patch(
"mcp_server._pr_work_lease_reviewer_block",
return_value=dict(_NO_PR_WORK_LEASE_BLOCK),
)
self.pr_work_lease_patch.start()
self.addCleanup(self.pr_work_lease_patch.stop)
self.auth_header_patch = patch("mcp_server.get_auth_header", return_value="token test")
self.auth_header_patch.start()
self.addCleanup(self.auth_header_patch.stop)
def test_workflow_no_deadlock(self):
import mcp_server
import reviewer_pr_lease
# 1. Resolve capability
res = mcp_server.gitea_resolve_task_capability(task="review_pr", remote="prgs")
self.assertTrue(res["allowed_in_current_session"])
# 2. Load review workflow
res = mcp_server.gitea_load_review_workflow()
self.assertTrue(res["success"])
# Mock API requests for lease comments and PR retrieval
comments = []
def mock_api_side(method, url, auth, data=None):
if "/api/v1/user" in url:
return {"login": "reviewer-bot"}
if "/pulls/" in url:
if "/reviews" in url:
if method == "POST":
return {"id": 2001, "state": "APPROVED"}
return [{"id": 2001, "user": {"login": "reviewer-bot"}, "state": "APPROVED", "commit_id": "abc123"}]
return {"user": {"login": "author-user"}, "state": "open", "head": {"sha": "abc123"}, "mergeable": True}
if "/comments" in url:
if method == "POST":
comments.append({"id": 1001, "body": data["body"], "user": {"login": "reviewer-bot"}})
return {"id": 1001}
return comments
return {}
with patch("mcp_server.api_request", side_effect=mock_api_side):
# 3. Acquire reviewer lease
res = mcp_server.gitea_acquire_reviewer_pr_lease(
pr_number=550,
worktree="/workspace",
candidate_head="abc123",
remote="prgs",
)
self.assertTrue(res["success"])
self.assertEqual(res["comment_id"], 1001)
# verify lease is recorded in session
session_lease = reviewer_pr_lease.get_session_lease()
self.assertIsNotNone(session_lease)
self.assertEqual(session_lease["pr_number"], 550)
# 4. Resolve capability again (simulating subsequent tool call preflight check/token refresh)
# This should NOT clear the session lease or decision lock!
mcp_server._preflight_capability_called = False # simulate clearance from prior mutation
res = mcp_server.gitea_resolve_task_capability(task="review_pr", remote="prgs")
self.assertTrue(res["allowed_in_current_session"])
self.assertIsNotNone(reviewer_pr_lease.get_session_lease()) # Preserved!
# 5. Mark final review decision APPROVED
res = mcp_server.gitea_mark_final_review_decision(
pr_number=550,
action="approve",
expected_head_sha="abc123",
remote="prgs",
)
self.assertTrue(res["marked_ready"])
# 6. Submit review (should succeed without deadlock)
res = mcp_server.gitea_submit_pr_review(
pr_number=550,
action="approve",
body="APPROVED",
expected_head_sha="abc123",
final_review_decision_ready=True,
remote="prgs",
worktree_path="/workspace",
)
self.assertTrue(res["performed"])
def test_release_reviewer_pr_lease(self):
import mcp_server
import reviewer_pr_lease
# Resolve capability and load workflow
mcp_server.gitea_resolve_task_capability(task="review_pr", remote="prgs")
mcp_server.gitea_load_review_workflow()
comments = [_reviewer_lease_comment(550, session_id=_DEFAULT_LEASE_SESSION, head_sha="abc123")]
posted_comments = []
def mock_api_side(method, url, auth, data=None):
if "/api/v1/user" in url:
return {"login": "reviewer-bot"}
if "/pulls/" in url:
return {"user": {"login": "author-user"}, "state": "open", "head": {"sha": "abc123"}, "mergeable": True}
if "/comments" in url:
if method == "POST":
new_c = {"id": 1002, "body": data["body"], "user": {"login": "reviewer-bot"}}
comments.append(new_c)
posted_comments.append(new_c)
return {"id": 1002}
return comments
return {}
# Set session lease in memory
import merger_lease_adoption as mla
reviewer_pr_lease.record_session_lease({
"pr_number": 550,
"session_id": _DEFAULT_LEASE_SESSION,
"candidate_head": "abc123",
"target_branch": "master",
"comment_id": 9001,
}, lease_provenance=mla.build_lease_provenance(source=mla.SOURCE_ACQUIRE, comment_id=9001))
with patch("mcp_server.api_request", side_effect=mock_api_side):
# Release lease
res = mcp_server.gitea_release_reviewer_pr_lease(pr_number=550, remote="prgs")
self.assertTrue(res["success"])
self.assertTrue(res["released"])
self.assertEqual(res["comment_id"], 1002)
# verify lease is cleared in session
self.assertIsNone(reviewer_pr_lease.get_session_lease())
# verify comment phase is released
self.assertIn("phase: released", posted_comments[0]["body"])