@block65/typesmock

An experimental and unstable Typescript module loader, via [ts-node](https://github.com/TypeStrong/ts-node), with ESM and CommonJS mocking.

Usage no npm install needed!

<script type="module">
  import block65Typesmock from 'https://cdn.skypack.dev/@block65/typesmock';
</script>

README

TypeScript + ESM + mocking = typesmock

An experimental and unstable Typescript module loader, via ts-node, with ESM and CommonJS mocking.

Currently, testing for use with AVA. Does not work with Jest.

Very heavily "inspired" by quibble

AVA Example

// ava.config.js

export default function factory() {
  return {
    //...
    extensions: {
      ts: 'module',
    },
    nodeArguments: [
      '--loader=@block65/typesmock/loader',
      '--experimental-import-meta-resolve',
    ],
  };
}

// sum.ts
export function sum(a: number, b: number): number {
  return a + b;
}

// test.ts

import test from 'ava';
import { mockEsm } from '@block65/typesmock';

test.before(async () => {
  await mockEsm('./sum.js', {
    namedExports: {
      sum() {
        return 5;
      },
    }
  });
});

test('Mathematics is fun', async (t) => {
  const { sum } = await import('./sum.js');
  t.is(sum(2, 2), 5); // true 💪
});