vitest-codemod

This repository contains a collection of codemod scripts for use with JSCodeshift that help migrate to vitest.

The vitest-codemod CLI is a lightweight wrapper over jscodeshift. It processes --help, --version and --transform options before passing them downstream.

Prerequisites

To use vitest-codemod, please install Node.js.

Usage

• Optionally execute dry-run for the transform, and print transformed files on stdout:

  npx vitest-codemod --dry --print -t jest PATH...

• Run transform, and make changes to files:

  npx vitest-codemod -t jest PATH...

• To use the latest version of vitest-codemod, clear your npx cache. You can either manually delete folder $(npm get cache)/_npx/*, or run clear-npx-cache.

  npx clear-npx-cache

Example

$ cat example.spec.js
describe("basic", () => {
  test("Math.sqrt()", () => {
    expect(Math.sqrt(4)).toBe(2);
  })
});

$ npx vitest-codemod -t jest example.spec.js

$ cat example.spec.js
import { describe, expect, test } from "vitest";
describe("basic", () => {
  test("Math.sqrt()", () => {
    expect(Math.sqrt(4)).toBe(2);
  })
});

License

This library is licensed under the MIT License. See the LICENSE file.