CodeSampleX

Sample

custom Jest reporter extending BaseReporter and formatting test paths

sha256:b5fe083ff202587a6cdd7fa412b3f3c3c5a2629c778ac27228d1720cafa40fe2

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
custom Jest reporter extending BaseReporter and formatting test paths
Packages
Symbols
  • @jest/reporters.BaseReporter
  • @jest/reporters.utils.formatTestPath
Created
2026-08-27T12:45:03Z

Contract

  1. BaseReporter is a constructible class providing lifecycle hooks and error management
  2. CustomLifecycleReporter subclasses BaseReporter to capture onRunStart, onTestStart, onTestCaseResult, onTestResult, and onRunComplete events
  3. BaseReporter exposes getLastError and manages internal errors recorded via _setError
  4. utils.formatTestPath formats test file paths relative to project root configuration
  5. utils.relativePath splits test path into dirname and basename based on root configuration
  6. utils.getSummary formats test suite and snapshot counts from aggregated results
  7. utils.getSummary throws when showSeed is true but seed is undefined

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous