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test(workers): real-Postgres integration test for TK-10240 pg-boss resilience
2831eee7b11923ab6f90431372cab34ffe62abb4 · 2026-08-08 16:12:07 -0700 · Steve
Adds apps/workers/src/queue-resilience.itest.ts — the 'test vs the live
crawler' coverage the mocked queue.test.ts unit suite can't give. Against a
real (test) Postgres it proves: (1) enqueue writes a fetchable job (fetch/
complete roundtrip), (2) getQueue attaches an 'error' listener so a boss error
is non-fatal (the ride-out that replaced process.exit(1)) and flips the health
probe, with a real getQueueSize canary recovering it, (3) stopQueue tears down
cleanly and getQueue yields a fresh instance with the handler re-attached.
Uses fetch/complete (not a persistent work() subscription) so no poller leaks
past stopQueue. Runs only under test:integration (guarded to *_test DB);
excluded from the unit run. Full integration suite 7/7, non-flaky; workers tsc clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Files touched
A apps/workers/src/queue-resilience.itest.ts
Diff
commit 2831eee7b11923ab6f90431372cab34ffe62abb4
Author: Steve <steve@designerwallcoverings.com>
Date: Sat Aug 8 16:12:07 2026 -0700
test(workers): real-Postgres integration test for TK-10240 pg-boss resilience
Adds apps/workers/src/queue-resilience.itest.ts — the 'test vs the live
crawler' coverage the mocked queue.test.ts unit suite can't give. Against a
real (test) Postgres it proves: (1) enqueue writes a fetchable job (fetch/
complete roundtrip), (2) getQueue attaches an 'error' listener so a boss error
is non-fatal (the ride-out that replaced process.exit(1)) and flips the health
probe, with a real getQueueSize canary recovering it, (3) stopQueue tears down
cleanly and getQueue yields a fresh instance with the handler re-attached.
Uses fetch/complete (not a persistent work() subscription) so no poller leaks
past stopQueue. Runs only under test:integration (guarded to *_test DB);
excluded from the unit run. Full integration suite 7/7, non-flaky; workers tsc clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
apps/workers/src/queue-resilience.itest.ts | 78 ++++++++++++++++++++++++++++++
1 file changed, 78 insertions(+)
diff --git a/apps/workers/src/queue-resilience.itest.ts b/apps/workers/src/queue-resilience.itest.ts
new file mode 100644
index 00000000..1410ffba
--- /dev/null
+++ b/apps/workers/src/queue-resilience.itest.ts
@@ -0,0 +1,78 @@
+import { afterAll, beforeAll, describe, expect, it } from "vitest";
+import {
+ getQueue,
+ enqueue,
+ stopQueue,
+ computeQueueHealth,
+ getQueueHealthState,
+ recordQueueHealthy,
+} from "@homesonspec/shared";
+
+/**
+ * Integration: exercises the TK-10240 pg-boss resilience facade against a REAL
+ * (test) Postgres — the "test vs the live crawler" coverage the mocked unit
+ * suite in packages/shared/queue.test.ts cannot provide. Proves against real
+ * pg-boss + Postgres:
+ * (1) enqueue() writes a real, fetchable job through Postgres,
+ * (2) getQueue() attaches an 'error' listener so a boss error is NON-FATAL
+ * (the ride-out that replaced process.exit(1)) and flips the health probe,
+ * and a canary success recovers it,
+ * (3) stopQueue() tears down cleanly and getQueue() yields a fresh instance
+ * with the ride-out handler re-attached.
+ *
+ * Uses fetch()/complete() rather than a persistent work() subscription so no
+ * poller outlives the test (a lingering subscription throws "Workers are
+ * disabled" after stopQueue). pg-boss creates its own `pgboss` schema on
+ * start(); safe because the integration setup pins DATABASE_URL to a throwaway
+ * *_test database.
+ */
+
+const JOB = "resilience-itest-job";
+
+beforeAll(() => {
+ // Guard: never touch a non-test database.
+ expect(process.env.DATABASE_URL).toMatch(/homesonspec_test/);
+});
+
+afterAll(async () => {
+ await stopQueue();
+});
+
+describe("pg-boss resilience facade (real Postgres)", () => {
+ it("enqueue writes a real, fetchable job through Postgres", async () => {
+ const boss = await getQueue();
+ await boss.createQueue(JOB);
+ const id = await enqueue(JOB, { n: 42 });
+ expect(id).toBeTruthy();
+
+ const jobs = await boss.fetch<{ n: number }>(JOB);
+ expect(jobs[0]?.data).toEqual({ n: 42 });
+ if (jobs[0]) await boss.complete(JOB, jobs[0].id);
+ }, 20_000);
+
+ it("a boss 'error' is non-fatal (ride-out) and flips health; a canary success recovers it", async () => {
+ const boss = await getQueue();
+ // The whole point of TK-10240: getQueue() registers an 'error' listener so a
+ // transient pg-boss/pg-pool error is recorded + survived instead of bubbling
+ // to an uncaught 'error' event (which would crash the process). Node only
+ // throws for an 'error' emit with ZERO listeners — so this emit NOT throwing
+ // is itself the proof the ride-out handler is wired.
+ expect(boss.listenerCount("error")).toBeGreaterThanOrEqual(1);
+ boss.emit("error", new Error("synthetic transient blip"));
+
+ expect(computeQueueHealth(getQueueHealthState(), Date.now()).healthy).toBe(false);
+
+ // A real canary roundtrip (what startQueueHealthCanary does) proves recovery.
+ await boss.getQueueSize(JOB);
+ recordQueueHealthy();
+ expect(computeQueueHealth(getQueueHealthState(), Date.now()).healthy).toBe(true);
+ }, 20_000);
+
+ it("stopQueue tears down cleanly; getQueue yields a fresh instance with the handler re-attached", async () => {
+ const before = await getQueue();
+ await stopQueue();
+ const after = await getQueue();
+ expect(after).not.toBe(before);
+ expect(after.listenerCount("error")).toBeGreaterThanOrEqual(1);
+ }, 20_000);
+});
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