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Fusion Agent e5ac9c385a FN-152: repair local PostgreSQL test provisioning

Repair embedded PostgreSQL test-server staging and diagnostics for reliable local and worktree test runs.

- Stage native PostgreSQL runtime files before startup and manage lifecycle state safely.
- Add provisioning diagnostics, harness integration, regression tests, and troubleshooting documentation.
- Expose PostgreSQL test-server lifecycle commands through package scripts.

Files changed:
 ...server-libdir-plpgsql-and-missing-login-role.md |  15 +
 docs/testing.md                                    |  10 +
 package.json                                       |   3 +
 .../__test-utils__/pg-provisioning-diagnostics.ts  |  25 ++
 .../core/src/__test-utils__/pg-test-harness.ts     |   5 +
 .../__tests__/pg-provisioning-diagnostics.test.ts  |  30 ++
 .../__tests__/reliability-interactions/_helpers.ts |  17 +-
 scripts/__tests__/pg-test-server.test.mjs         |  73 +++++
 scripts/pg-test-server.mjs                        | 332 +++++++++++++++++++++
 9 files changed, 505 insertions(+), 5 deletions(-)

Fusion-Task-Id: FN-152

Fusion-Task-Lineage: ead05f6e-00fc-42a0-8599-bf4cb2269527

Co-authored-by: Fusion <noreply@runfusion.ai>

2026-08-23 01:36:12 +00:00

__tests__

FN-9131: Add PostgreSQL harness budget characterization

2026-08-16 19:29:05 -07:00

pg-connection-budget.ts

FN-9131: Add PostgreSQL harness budget characterization

2026-08-16 19:29:05 -07:00

pg-ddl-admission.ts

FN-9130: Add guarded PostgreSQL DDL admission infrastructure

2026-08-16 15:57:36 -07:00

pg-fork-db-pool.ts

FN-9136: Characterize PostgreSQL fork database reuse