# Posts by tag 'jest' — Liran Tal

AI security researcher, open-source maintainer, and author. Explore Liran Tal’s blog, research papers, developer tools, books, and conference talks.

Canonical: https://lirantal.com/tag/jest

[![](/_astro/jest-timers-and-mocks.D3IestBi_95dmV.png)

Mar 30, 2026 8 min read

### All About Jest, Timers, and Mocks

How to use Jest fake timers, advance time safely in tests, and pair timer control with mocks and spies without flaky or misleading assertions.](/blog/jest-timers-and-mocks)

*   [jest](/tag/jest)
*   [testing](/tag/testing)
*   [javascript](/tag/javascript)