CodeSampleX

Sample

verify @sinonjs/fake-timers.createClock in pkg:npm/%40sinonjs/fake-timers@15.4.0

sha256:e6efd5e58fca71d12859acb5e52d435fc8b63ccab8674c3ecd57fd1ac3c092e0

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm

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
2026-08-20

Case

HOW
Goal
verify @sinonjs/fake-timers.createClock in pkg:npm/%40sinonjs/fake-timers@15.4.0
Packages
Symbols
  • @sinonjs/fake-timers.createClock
Environment
node 22.23.2
Created
2026-08-20T17:51:20Z

Contract

  1. createClock creates an independent fake clock initialized at the specified start timestamp
  2. clock.setTimeout schedules a timer that fires callback with provided arguments when advanced past delay
  3. clock.clearTimeout cancels a scheduled timer so it does not fire
  4. clock.setInterval repeatedly invokes callback every interval until clearInterval
  5. clock.tick synchronously advances clock time by ms and executes expired timers in chronological order
  6. clock.tickAsync advances clock time asynchronously, awaiting resolved promises returned by async callbacks
  7. clock.runAll exhausts and triggers all scheduled timers until the queue is empty
  8. clock.runToLast advances time to the expiration timestamp of the latest scheduled timer and fires pending timers
  9. clock.setSystemTime modifies current clock time without executing scheduled timers
  10. clock.reset resets clock.now back to the initial start timestamp and clears all active timers
  11. clock.countTimers returns the number of active scheduled timers remaining in the queue
  12. clock.next advances clock time to the very next scheduled timer and executes it

Files

  • PROMPT.md
  • csx.json
  • index.mjs
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous