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jest

Exploratory Testing

Tips for Unit Testing in Front-End Frameworks: Part 2

In the second installment of "Tips for Unit Testing in Front-end Frameworks," we'll determine our testing prerequisites.
Development Practices

Tips for Unit Testing in Front-end Frameworks: Part 1

Learning to effectively test in frameworks like Angular is difficult. Here's a method that helped me write unit tests in front-end frameworks.
Exploratory Testing

Jest Setup: Gotchas with Next and MUI

If you're setting up UI tests with Jest and React Testing Library and then adding in NextJS and Material UI, watch for these three things.
React / Redux

How to Fix TypeError: Cannot Read Properties of Null (Reading ‘createEvent’)

How do you fix "TypeError: Cannot read properties of null (reading 'createEvent')"? By upgrading to React 18.
Angular

Using Jest for Testing in an Angular Project

In this post, we will go over how to quickly replace Karma and Jasmine, the default test runner and assertion framework in a new Angular project, with Jest.
Web Apps

Unit Testing Google Maps API with Jest

To isolate our functions for testing, we needed to create some mocks for Google Maps API. We chose Jest for its ease of use and because there's a handy Jest-Junit reporter that cre
Web Apps

Using Jest to Test Our Express-Backed React App

Configuring tests is one of the most tedious and frustrating aspects of a new web application. We show you our app testing setup to save you some work.
Web Apps

How to Add Custom Functions to a Jest Test Suite

I want easy-to-use, discoverable functions for my Jest test suite. I don't want to change much syntax, and I don't want to import anything.
Developer Tools

React Testing – Jest or Mocha?

Comparing the weaknesses and strengths of Mocah and Jest for testing React.js projects. It comes down to flexibility and extensibility vs. ease of use.

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