Sample
jest 30.4.2: Show that Jest should preserve named CJS exports when module.exports is a function with own properties.
Verified sample for npm jest 30.4.2: Show that Jest should preserve named CJS exports when module.exports is a function with own properties. The contract ran…
sha256:f4d3b6d2d59f482b9297eba6c32c36c62282b556c6552317d0117931003ede8b
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
- Show that Jest should preserve named CJS exports when module.exports is a function with own properties.
- Packages
- Symbols
-
- jest-runtime
- module.exports
- Environment
- node
- Created
- 2026-08-17T01:52:53Z
Contract
- Jest 30.4.2 keeps named imports working for a CommonJS module where `module.exports` is a function with own-property exports.
- The same imports fail in 30.4.1 because Jest does not surface named exports in that shape.
Files
- NOTES.md
- csx.json
- jest.config.js
- lib/fn-export.cjs
- package-lock.json
- package.json
- test/contract.mjs
- test/interop.test.mjs