Create Custom Jest Matchers to Test Like a Pro
Published in
3 min readFeb 19, 2020
Jest is an industry-standard testing framework for JS projects. It was developed by Facebook to test their code and was made open-source. In this article, I will teach you to create custom Jest matchers to supercharge your testing skills.
What is a matcher?
A matcher (or an assertion) is a function that is used to check for a specific condition…