ambient-mode-player
jest
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| ambient-mode-player | jest | |
|---|---|---|
| 2 | 393 | |
| 5 | 41,636 | |
| - | 1.0% | |
| 10.0 | 9.8 | |
| 5 months ago | 7 days ago | |
| TypeScript | TypeScript | |
| MIT License | MIT License |
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ambient-mode-player
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jest
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ReactJS e2e testing with Puppeteer
Jest
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Express API Testing
Jest is a test framework because it already includes the test runner, assertion and mocking functions, it's quite popular because you don't need to wire anything to start executing tests, but it has some caveats
- Jest v29.5.0 shipped with --randomize CLI flag to run your tests in a random order
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A gentle introduction to Vitest
Traditionally, Jest has been the most widely used JS Unit testing framework of choice. While Jest is an incredible framework, it has had some slowness issues. But a bigger problem around Jest is the tooling that might be needed to run our first test. We might need a transpiler liked Babel and transformers to create Jest digestible code.
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Building a Node API with Fastify, esbuild, and Nx
Unit tests take advantage of Fastify’s plugin architecture, and allows you to test each plugin in isolation. It runs using Jest, which is the most popular test runner in Node.
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Simplifying jest stubs using jest-when
While test-driving the UnusualSpendingDetector class we found that writing stubs using plain jest can be a bit hard. The reason is that jest does not match mocked function arguments, so to create stubbed responses for particular values of the arguments we are forced to introduce logic in the tests.
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Episode 23/04: TypeScript 5 Beta, Angular Roadmap 2023
Jest 29.4: Release Notes
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20 Best Libraries and Tools for React Developers
Jest is a JavaScript testing framework designed to ensure the correctness of any JavaScript codebase. It allows you to write tests with an approachable, familiar, and feature-rich API that gives you results quickly. It is well-documented, requires little configuration, and can be extended to match your requirements. You can use it as a test runner for your React App.
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refine vs RedwoodJS
It it based on several core technologies - GraphQL for making API calls, Prisma as an ORM, TypeScript for type safety (optional), Jest for testing, Pino for logging and Storybook to assist with creating UI.
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Example of role tests in JavaScript with Jest
Although Jest does not have something equivalent or similar to the RSpec’s shared examples functionality we used in our previous example in Ruby, we can get a very similar result by composing functions.
What are some alternatives?
tap - Test Anything Protocol tools for node
vitest - A Vite-native test framework. It's fast!
Cucumber.js - Cucumber for JavaScript
Sinon.JS - Test spies, stubs and mocks for JavaScript.
nyc - the Istanbul command line interface
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js
ava - Node.js test runner that lets you develop with confidence 🚀
nightwatch - End-to-end testing framework written in Node.js and using the W3C Webdriver API
istanbul - Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests and browser tests. Built for scale.
Cypress - Fast, easy and reliable testing for anything that runs in a browser.
mocha - ☕️ simple, flexible, fun javascript test framework for node.js & the browser
Protractor - E2E test framework for Angular apps