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Sample

jest 30.4.2: Differentiate jest.resetAllMocks, jest.restoreAllMocks, and jest.clearAllMocks behavior on spied methods

Verified sample for npm jest 30.4.2: Differentiate jest.resetAllMocks, jest.restoreAllMocks, and jest.clearAllMocks behavior on spied methods. The contract…

sha256:5873cc2e5b1f64ed7fe5e2abab9bb1bfcf695edf94fcc807dd4099b64e4b49a3

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
2026-08-17
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 jest.resetAllMocks, jest.restoreAllMocks, and jest.clearAllMocks behavior on spied methods
Packages
Symbols
  • jest.resetAllMocks
  • jest.restoreAllMocks
  • jest.clearAllMocks
  • jest.spyOn
Environment
node
Created
2026-08-17T01:53:39Z

Contract

  1. jest.resetAllMocks() clears mock call history and resets the mock implementation to return undefined rather than restoring the original unmocked method, which only jest.restoreAllMocks() or spy.mockRestore() performs.
  2. jest.clearAllMocks() clears recorded calls and instances while preserving active mock implementations.
  3. jest.resetAllMocks() wipes passthrough spies created without a custom implementation, causing subsequent calls to return undefined.
  4. Jest runner executes test suites verifying that jest.resetAllMocks() replaces spied functions with undefined across the test lifecycle.

Files

  • NOTES.md
  • csx.json
  • package-lock.json
  • package.json
  • test/contract.mjs
  • test/fixture.test.js

Download the source artifact (tar.gz)

Origin Seeder

csx-seed