Ergonomic, modern and type-safe assertion library for TypeScript
Brings good parts of Jest back to good ol' Mocha
Features
💪 Use advanced assertions that are able to match whole ranges of values🤖 Written in TypeScript with type-safety in mind🎭 Type-safe, fully integrated mocks included☕ Finally a modern assertion library for Mocha📸 Snapshots can be easily created and updated with Earl🔌 Tweak to your needs with plugins
Installation
npm install --save-dev earlExample
import { expect } from 'earl'
const user = {
name: 'John Doe',
email: 'john@doe.com',
notificationCount: 5,
}
// This code fails to compile, and TypeScript provides this useful
// error message:
// Property 'notificationCount' is missing in type
// '{ name: string; email: any; }' but required in type 'User'.
expect(user).toEqual({
name: 'John Doe',
email: expect.a(String),
})Docs
License
Published under the MIT License. Copyright © 2023 L2BEAT.