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https://github.com/deepseek-ai/deepseek-harness
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9ca31ab193
The emit-shaped hook points (SessionStart, SubagentStart, SubagentStop) run fire-and-forget: no seam awaits the run chain, so disposing a bridge could strand a live hook process and let a late continuation inject into a disposed context. The floating continuation also made the coverage gate racy: the only coverage of the SubagentStart continuation's no-context branch arm rode on an un-awaited .then, and on a loaded CI runner the fork's per-file coverage snapshot beat it — master run 28798191671 failed the 100% branch gate on hooks-claude/src/index.ts at 99.03% (uncovered line 336) with the identical tree passing the PR run three minutes earlier. New shared primitive createDetachedRuns() in dsh-hook-protocol: a bridge tracks each detached run chain, passes the tracker's abort signal to runHook, and registers drain() as its effect disposer — drain aborts still-running hook processes (a kill via the bash seam, not a wait out to the 10-minute default hook timeout), then resolves once every chain has settled. fiber.dispose() resolving now means the bridge's detached work is quiescent (docs/defensive-patterns.md). The subagent marker test disposes the bridge as its sync point, so the formerly racy branch arm is executed deterministically before the file's coverage snapshot; new tests pin abort-on-dispose promptness for both bridges and the tracker's settle/drain contract in hook-protocol.
69 lines
2.8 KiB
TypeScript
69 lines
2.8 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import { createDetachedRuns } from '@deepseek-ai/dsh-hook-protocol'
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/** A promise settled from outside, so a test controls exactly when a tracked run finishes. */
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function deferred(): { promise: Promise<void>; resolve: () => void; reject: (error: Error) => void } {
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let resolve!: () => void
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let reject!: (error: Error) => void
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const promise = new Promise<void>((res, rej) => { resolve = res; reject = rej })
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return { promise, resolve, reject }
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}
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describe('createDetachedRuns', () => {
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it('starts with an unfired signal; drain fires it (so still-running hook processes get killed)', async () => {
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const detached = createDetachedRuns()
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expect(detached.signal.aborted).toBe(false)
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await detached.drain()
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expect(detached.signal.aborted).toBe(true)
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expect(String(detached.signal.reason)).toContain('hook bridge disposed')
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})
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it('drain with nothing tracked resolves immediately', async () => {
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await expect(createDetachedRuns().drain()).resolves.toBeUndefined()
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})
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it('drain waits for a tracked run to settle', async () => {
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const detached = createDetachedRuns()
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const run = deferred()
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detached.track(run.promise)
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let drained = false
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const draining = detached.drain().then(() => { drained = true })
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// Give the drain every chance to (wrongly) resolve before the run settles.
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await new Promise(resolve => setTimeout(resolve, 10))
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expect(drained).toBe(false)
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run.resolve()
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await draining
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expect(drained).toBe(true)
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})
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it('drain waits for a run tracked WHILE a prior wave was settling', async () => {
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const detached = createDetachedRuns()
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const first = deferred()
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const second = deferred()
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detached.track(first.promise)
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// The late run enters the registry from the first run's own continuation —
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// after drain() snapshotted its first wave.
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void first.promise.then(() => { detached.track(second.promise) })
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let drained = false
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const draining = detached.drain().then(() => { drained = true })
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first.resolve()
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await new Promise(resolve => setTimeout(resolve, 10))
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expect(drained).toBe(false)
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second.resolve()
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await draining
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expect(drained).toBe(true)
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})
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it('a rejected tracked run is absorbed by the settlement bookkeeping (drain still resolves)', async () => {
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const detached = createDetachedRuns()
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const run = deferred()
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detached.track(run.promise)
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// The caller-side handler every bridge attaches; the tracker's own
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// bookkeeping must not depend on it, but an UNHANDLED rejection would fail
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// the test run, which is exactly the guarantee under test.
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run.promise.catch(() => {})
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run.reject(new Error('hook run boom'))
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await expect(detached.drain()).resolves.toBeUndefined()
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})
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})
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