If you have an application that has HTML imports like this import template from './my-component.html and then attempt to test this code in …
Jest
How To Mock uuid In Jest
When it comes to mocking dependencies in Jest, it couldn't be easier. You can create an actual mock module that gets loaded in place of the …
Testing Event Listeners In Jest (Without Using A Library)
I love using Jest to unit test my Aurelia applications. Sadly, one of the most popular options for mocking event listeners and simulating …
Quick & Easy Way To Reset Mocks & Spies In Jest
When working with mocks and spies in Jest, it is quite easy to fall into a trap where they become stale (especially in cases where pure …
How To Easily Mock Moment.js In Jest
Recently whilst writing some unit tests in Jest, I had to test some code that took ISO date strings and converted them to formatted date …
Jest Not Finding Tests In Travis CI? You Might Be Ignoring The Build Folder
Recently, I encountered an issue in Travis CI and my Aurelia application which uses Jest for the tests suite. I erroneously copied some …