Enable coverage again

[sindresorhus]

Had to be disabled for ESM: 1eee7c2

Blocked by istanbuljs/nyc#1353 (I tried using the mentioned @istanbuljs/esm-loader-hook, but it didn't work)

[sayem314]

c8 is a better and faster alternative to nyc and it works with esm
https://www.npmjs.com/package/c8

[szmarczak]

@sayem314 it's not better because it's not reliable. It gives false line numbers.

[sayem314]

@szmarczak I see. For me, it works fine hence recommended.

[szmarczak]

@sayem314 Thanks for the suggestion :)

[coreyfarrell]

@sindresorhus it looks like got/package.json tells ava to use --loader=ts-node/esm. Unfortunately node.js does not support chaining multiple --loader options.

[andersk]

Relevant: nodejs/modules#513 “Using multiple loaders”.

[andersk]

I think this could be done with a single loader, as long as it’s Babel instead of ts-node: use --loader babel-register-esm with a babel.config.json like this.

{
  "presets": ["@babel/typescript"],
  "env": {
    "test": {
      "plugins": ["babel-plugin-istanbul"]
    }
  }
}