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The only 3 steps you need to mock an API call in Jest

Reactions 415 Comments 36
6 min read

Testing Node.js + Mongoose with an in-memory database

Reactions 276 Comments 25
4 min read

Testing with Jest & async/await

Reactions 162
3 min read

Components testing in React: what and how to test with Jest and Enzyme

Reactions 98 Comments 1
19 min read

Testing Database Interactions with Jest

Reactions 93
6 min read

Testing of a Custom React Hook for Fetching Data with Axios

Reactions 89 Comments 4
6 min read

Unit Testing with Typescript and Jest

Reactions 80 Comments 11
2 min read

"I need to change this code, but it has no test"

Reactions 74 Comments 10
10 min read

Up & Running with JEST

Reactions 68 Comments 4
3 min read

Things I learned after writing tests for JS and HTML page

Reactions 68 Comments 10
3 min read

Learn to Architect and Test GraphQL Servers by Observing Spectrum

Reactions 67 Comments 2
9 min read

Vue component TDD with Jest and Storybook

Reactions 66 Comments 4
14 min read

Data-driven Unit Tests with Jest

Reactions 66 Comments 2
3 min read

Test Driven Development 101 and JS testing

Reactions 65 Comments 5
2 min read

How to test Svelte components

Reactions 62 Comments 4
3 min read

A Guide To Writing Awesome Unit Tests For The First Time

Reactions 60 Comments 4
10 min read

Setting up your React Workflow with Create React App, EsLint, Flow, Jest & Enzyme

Reactions 58 Comments 4
8 min read

Testing React Hook State Changes

Reactions 56 Comments 19
2 min read

A Guide for every UI developer with an aversion to Unit Tests.

Reactions 53 Comments 1
10 min read

How To Test React Hooks Using Jest And React Testing Library

Reactions 50
1 min read

A gentle introduction to testing vue applications.

Reactions 48 Comments 4
8 min read

Testing Svelte components with Jest

Reactions 39 Comments 4
3 min read

Converting your Unit and End-To-End Test Suites from Mocha, Chai, and Sinon to Jest in Nodejs.

Reactions 37
14 min read

Mocking JavaScript's current Date in Jest tests

Reactions 37 Comments 5
1 min read

React Testing Cases

Reactions 36
5 min read

Dealing with Asynchrony when Writing End-To-End Tests with Puppeteer + Jest

Reactions 35 Comments 4
11 min read

Understanding code coverage with Jest

Reactions 31 Comments 4
3 min read

Simplify repetitive Jest test cases with test.each

Reactions 29 Comments 6
2 min read

A bit about Jest mocks

Reactions 28
7 min read

#helpNodeJS - Unit Tests - testing without hitting database. Confusings.

Reactions 26 Comments 11
2 min read

Jest Snapshot Testing for React Components is useless? Is it slowly dying? 🧐🤔😐

Reactions 24 Comments 7
4 min read

Understanding the shallow function in Enzyme

Reactions 22 Comments 2
4 min read

Testing Axios Requests With Jest

Reactions 22 Comments 5
2 min read

Abusing Jest snapshot tests: some nice use-cases 📸

Reactions 21 Comments 1
5 min read

Jest, React and mocks

Reactions 21
2 min read

TDD em Nodejs : conhecendo o Jest

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6 min read

Setting up Jest in a Laravel project

Reactions 19 Comments 2
2 min read

Mocking ES6 class methods with Jest!

Reactions 18 Comments 3
3 min read

Configuring Jest and Enzyme in Create React App on Typescript

Reactions 18 Comments 1
3 min read

Mocking redux useSelector-hook

Reactions 18 Comments 14
3 min read

Testing React - Setup, Unit, Integration and E2E using Jest and Cypress (feat. GraphQL)

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4 min read

Demystifying Jest Async Testing Patterns

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4 min read

Writing end-to-end tests for GraphQL servers using Jest

Reactions 17
7 min read

Integration Testing Browser Extensions with Jest

Reactions 16 Comments 1
5 min read

A guide to module mocking with Jest

Reactions 15 Comments 2
3 min read

I wrote a JavaScript Unit Test today... Spy On An Import Time Dependency

Reactions 15 Comments 1
3 min read

Angular 6: “ng test” with Jest in 3 minutes

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2 min read

Testing Vue.js in Rails with Webpacker and Jest

Reactions 15
5 min read

How to mock an imported Typescript class with Jest

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3 min read

Using fixtures for testing a React/Redux app (with Jest & Enzyme)

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8 min read

Discover Jest hidden feature Automock

Reactions 14 Comments 1
4 min read

Improve your Jest test code with Typescript ADTs

Reactions 14 Comments 2
4 min read

Test Timing-Based JS Functions with Jest

Reactions 14
2 min read

Setting up Jest with React and Webpacker

Reactions 13
3 min read

Reasons to Love Jest: The Test Framework

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3 min read

Node.js (Express) with TypeScript, Eslint, Jest, Prettier and Husky - Part 1

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4 min read

Migrating AngularJS tests From Karma to Jest

Reactions 13 Comments 5
7 min read

Testing your React app with Jest

Reactions 12
4 min read

BDD automated-testing con Gherkin y Jest en Node.js 🦄

Reactions 12
8 min read

Writing tests for Vue.js Storybook

Reactions 12
6 min read
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