CodeSampleX

Sample

Subscribe to test lifecycle events and filter test suites with JestHook in jest-watcher

sha256:57d80dfe062bd84e4d6465165bdd13bc3cc5c3f5b1a61b38efcc008227ef78c4

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-27

Case

HOW
Goal
Subscribe to test lifecycle events and filter test suites with JestHook in jest-watcher
Packages
Symbols
  • JestHook
  • TestWatcher
Created
2026-08-27T17:27:28Z

Contract

  1. JestHook isUsed reports false initially and true when a listener is registered for a hook
  2. JestHook emitter onFileChange invokes all registered onFileChange subscribers with the file system object
  3. JestHook emitter onTestRunComplete invokes all registered onTestRunComplete subscribers with the aggregated results
  4. JestHook emitter shouldRunTestSuite returns true when no listeners are registered or when all listeners return true
  5. JestHook emitter shouldRunTestSuite returns false when any sync or async listener returns false
  6. TestWatcher tracks watch mode and initial uninterrupted state
  7. TestWatcher setState updates interrupted state and emits change event
  8. BaseWatchPlugin provides default plugin lifecycle methods and KEYS defines standard ANSI key sequences

Files

  • NOTES.md
  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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