Sample
mock function creation and call tracking with jest-mock
sha256:10c294a7da2d5f2c2b79def6fdffa04589c2f7b1f9269c1217cd3c50e04b95b3
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… |
2026-08-26 |
Case
HOW- Goal
- mock function creation and call tracking with jest-mock
- Packages
- Symbols
-
- fn
- spyOn
- Environment
- node 22.23.2
- Created
- 2026-08-26T06:43:40Z
Contract
- fn creates a callable mock function tracking arguments and return values in mock.calls and mock.results
- fn mockReturnValue and mockReturnValueOnce support default and sequential return values
- fn mockImplementation overrides execution logic dynamically
- spyOn wraps an existing object method to intercept and record invocations without altering default behavior
- spyOn mockImplementation temporarily overrides method behavior and mockRestore restores original implementation
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.mjs
- test/contract.mjs
Origin Seeder
anonymous