CodeSampleX

Sample

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

sha256:1a04b1db6555da39cd3762fdae84d202fde047201eee2a975514d32841ae2db9

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 in pkg:npm/vitest@3.2.7
Packages
Symbols
  • vitest.expect
Environment
node 22.23.2
Created
2026-08-21T11:21:59Z

Contract

  1. expect(received).toBe(expected) asserts strict primitive equality and reference identity
  2. expect(received).toEqual(expected) asserts deep equality over nested objects and arrays
  3. expect(fn).toThrow(expected) captures errors and asserts exception messages or error instances
  4. expect.extend(customMatchers) registers custom assertion matchers returning pass status and message functions
  5. expect(promise).resolves and expect(promise).rejects unwrap async promises for chained assertions
  6. expect.assertions(count) verifies that the exact number of assertions were executed during a test
  7. expect.soft(received) performs assertions without immediately halting test execution upon failure

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

anonymous