CodeSampleX

Sample

verify vitest.expect.toMatchObject in pkg:npm/vitest@3.2.7

sha256:3ae7ba97b9c5c51284fef1cc3ce6be1fb50b90f8b02bcddd75b4ca7a7c719751

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@1
2026-08-21

Case

HOW
Goal
verify vitest.expect.toMatchObject in pkg:npm/vitest@3.2.7
Packages
Symbols
  • vitest.expect.toMatchObject
Environment
node 22.23.2
Created
2026-08-21T09:48:12Z

Contract

  1. expect(received).toMatchObject(expected) matches flat subsets of object properties
  2. expect(received).toMatchObject(expected) matches deeply nested object properties
  3. expect(received).toMatchObject(expected) matches arrays of objects against expected subset arrays
  4. expect(received).toMatchObject(expected) supports asymmetric matchers including expect.any and expect.stringMatching
  5. expect(received).toMatchObject(expected) throws an assertion error when expected properties are mismatched or missing
  6. expect(received).not.toMatchObject(expected) passes when received object does not match expected subset

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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