ts-transformer-testing-libray

> Make testing custom TypeScript transformers a breeze

* :zap: Avoid tsc work
* :electric_plug: Work with multiple modules
* :surfer: Mock source modules as required

Custom TypeScript transformers are a powerful way to
work with your source code, but coming up with a good
unit testing setup for them is hard.

This library does the heavy lifting for you.

Installation

``
yarn add -D ts-transformer-testing-library
`

Usage

`ts
// Transform a standalone TypeScript source
import { transform } from "ts-transformer-testing-library";

const result = transform(console.log('Hello, World!');, {
transform() { / Imaginary transform World ➞ You / }
});

console.log(result); // "Hello, You!";
`

`ts
// Transform a standalone TypeScript source
import { transformFile } from "ts-transformer-testing-library";

const result = transformFile({
path: '/index.ts',
contents: import {phrase} from './phrase'; console.log(phrase);
}, {
sources: [{ path: '/phrase.ts', contents: export const phrase = 'Hello, World!' }],
transform() { / Imaginary transform World ➞ You / }
});

console.log(result); // "Hello, You!";
``

API

:warning: API is still in flux. Consult interfaces in source for details.

License

MIT. Copyright 2019 - present Mario Nebl