Jest
Jest is used by Facebook to test all JavaScript code including React applications.
Jest is used by Facebook to test all JavaScript code including React applications.
One of Jest's philosophies is to provide an integrated "zero-configuration" experience.
We observed that when engineers are provided with ready-to-use tools, they end up writing more tests, which in turn results in more stable and healthy code bases.
Benefits
Developer Ready
Complete and ready to set-up JavaScript testing solution. Works out of the box for any React project.
Instant Feedback
Fast interactive watch mode runs only test files related to changed files and is optimized to give signal quickly.
Snapshot Testing
Capture snapshots of React trees or other serializable values to simplify testing and to analyze how state changes over time.
Other Companies Using Jest
Employees
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/D4uvqx70TMeum8snjYko)
Cody Swann
Since founding Gunner Technology, Cody has served the company in every aspect of business development and product development.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/fAtvkIFaS6wYBdJkiimp)
Dary Merckens
From a contractor to a partner, Dary has been with Gunner since year 1 and embodies the meritocratic spirit and philosophy of Gunner Technology.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/hndhUz5cSGS4AVnIF16w)
Mahdi Huessein
Mahdi joined Gunner at age 18 and quickly rose through the ranks to become VP of Engineering
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/8WOuNDB2S9FG642MOZzg)
Elena Villanueva
From Sensors and Big Data to Media Queries and Form Validation, Elena has worked on pretty much anything you can imagine.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/YpwTi3BTbmWPwdfbIVZY)
Skyla Frye
Skyla is Gunner's go-to engineer when it comes to evaluating new tech. She loves evaluating bleeding edge software and teaching her colleagues what she learns.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/sMhSniBWSSGszS4HlUNs)
Kayden Chan
Kayden holds the Gunner Technology record for most straight hours worked at just under 70. He refuses to quit until the job is done and it's done right.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/ZeQHBKEGSZqP7CmP6swo)
Manuel Orozco
When the headphones go on, you know Manuel is focused and writing code. And his headphones are always on.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/uyJQ4LoiQyWyMFObNQOg)
Caitlin Walton
In her own words, Caitlin is a Jill of All Trades - eager to learn and always ready to help.
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/P7uoaj2RXuKzMZ0IhcVx)
![[object Object]](https://media.graphcms.com/resize=w:512,h:512,a:top,fit:crop/zGCFle44RDiJMEZgIDdT)
Brenden Lam
As the youngest member of the team, Brenden earned the nickname of Young Hybrid for his proficient in both development and design.
Projects
![[object Object]](https://media.graphcms.com/resize=w:300,h:300,a:top,fit:crop/CeXHTJsmSK6gk3vwA5PG)
![[object Object]](https://media.graphcms.com/resize=w:300,h:300,a:top,fit:crop/dR9tGvBsTLqXZ0D7IAL6)
![[object Object]](https://media.graphcms.com/resize=w:300,h:300,a:top,fit:crop/2Z2xcFxTeKLj657PGVZg)
![[object Object]](https://media.graphcms.com/resize=w:300,h:300,a:top,fit:crop/BL87XjUmTyOVfkGmUApN)
![[object Object]](https://media.graphcms.com/resize=w:300,h:300,a:top,fit:crop/Q5izE3McQceBKRaCCtFK)
![[object Object]](https://media.graphcms.com/resize=w:300,h:300,a:top,fit:crop/YfzbkBjIS92BNgDBKenw)
References
Related Terms
- Open Source
Open source is a philosophy that promotes the free access and distribution of an end product, usually software or a program.