CodeSampleX

Sample

replace and restore object properties with jest-mock replaceProperty

sha256:81ef022695ca27bf8660da205305c954d01a01485b5be95adf3be2c236275f9f

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…
2026-08-28

Case

HOW
Goal
replace and restore object properties with jest-mock replaceProperty
Packages
Symbols
  • ModuleMocker
  • replaceProperty
Environment
node 22.23.2
Created
2026-08-28T03:11:41Z

Contract

  1. replaceProperty replaces an existing configurable property on an object with a new value
  2. replaceProperty handle replaceValue updates the property to subsequent values
  3. replaceProperty handle restore reverts the property to its original value and descriptor
  4. replaceProperty throws descriptive errors for non-existent properties, non-configurable properties, or getters
  5. ModuleMocker replaceProperty tracks replaced properties and restoreAllMocks restores all replaced properties

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

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