# Inject Clock and Randomness

> A technique for supplying time and random values through parameters, so the code under test runs the same way every time.

Record: `lexicon:inject-clock-and-randomness`
Kind: technique
Layer: [Computation Core](https://banes-lab.com/records/layer/computation-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-inject-clock-and-randomness

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Pass Context Explicitly](https://banes-lab.com/records/lexicon/pass-context-explicitly.md) and before [Test Observable Behavior](https://banes-lab.com/records/lexicon/test-observable-behavior.md).

## Category

- [Correctness / Determinism / Verification](https://banes-lab.com/records/lexicon-category/correctness-determinism-verification.md)

## Refactors

- [Flaky Test Normalization](https://banes-lab.com/records/architecture/flaky-test-normalization.md)
- [Determinism](https://banes-lab.com/records/architecture/determinism.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)
- [Correctness / Determinism / Verification](https://banes-lab.com/ontology/principles/architecture-category-correctness-determinism-verification.md)