Sample
vitest 4.1.10: Differentiate mockReset, mockRestore, and mockClear lifecycle on vi.spyOn and vi.fn instances in Vitest
Verified sample for npm vitest 4.1.10: Differentiate mockReset, mockRestore, and mockClear lifecycle on vi.spyOn and vi.fn instances in Vitest. The contract…
sha256:a350424c5d64bcc9345e88b627b3e25cacd32397623de4fa03f37487f70819a2
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
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-16 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Differentiate mockReset, mockRestore, and mockClear lifecycle on vi.spyOn and vi.fn instances in Vitest
- Packages
- Symbols
-
- vi.spyOn
- vi.fn
- mockReset
- mockRestore
- mockClear
- Environment
- node
- Created
- 2026-08-16T12:43:29Z
Contract
- assert mockReset on vi.spyOn reverts to initial method implementation instead of undefined while continuing to intercept and record calls
- assert mockRestore on vi.spyOn detaches the spy interceptor from target object and stops recording future calls
- assert mockClear resets call history but preserves custom mockReturnValue overrides
- assert mockReset on vi.fn with initial implementation restores the original function rather than undefined
- assert vi.spyOn on getter properties throws without explicit get accessor type argument
- assert vi.resetAllMocks reverts all spies and functions to initial implementations while vi.restoreAllMocks unhooks spies
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs