The VS Code extension is the fastest way to generate a unit test file from a source file directly from the IDE
Install jest-test-gen Extension
Automates creation of initial unit test files taking dependencies into account.
Parsing and test generation is avaialable for the following exports:
- Typescript typed React class components 🆕
- Typescript typed Functional components 🆕
- React Functional components 🆕
- React Class based components 🆕
- ES6 Classes default export or named exports
- Exported named functions and arrow functions
- Exported POJOs with methods
- Async functions and methods
This tool will take a js/ts file as input and generate a jest unit test file next to it with all imports mocked and tests stubs for every class method and function exported.
This project is inspired and started as a fork of jasmine-unit-test-generator
Basic ES6 Class example:
React Component example:
run npm i -g jest-test-gen
run jest-test-gen <path-to-file>
It's probably best to:
- add an input file in
spec/fixturesfolder test.js - add a snapshot test for the input spec in
integration.spec.ts - verify that the snapshot is actually the wanted test output before commiting the updated snapshot.
Alternavely, you can:
- run
npm link - run
npm run build:dev - run
jest-test-gen <option>in your project of choice
run npm run build
run npm publish