Document ES7 configuration with babel for ava

[ghost]

The documentation includes information on how to get ES6 support for ava, which is great. Would it be possible to include docs on how to get ES7 in also?

Here's a realistic use case:

A React component with the @connect() decorator from Redux:

import React from 'react';
import { connect } from 'react-redux';

@connect()
class Foo extends React.Component {

}

A test file for unit testing it:

import test from 'ava';
import { isElementOfType } from 'react-addons-test-utils';
import 'babel-core/register'; // as per docs

var Foo = require('../src/foo.jsx');

test('foo ', t => {
  const simpleFoo = React.createElement(Foo);
  t.ok(isElementOfType(Foo, simpleFoo));
});

I tried using a shim that apparently worked for people back when iojs was separate, but the namespaces don't match anymore:

require("babel/register")({
  optional: ['es7.asyncFunctions']
});

On the other hand, this guy claims ava supports es7 without any extra effort.

Either way, it would be nice to get some documentation on this--I'm interested in using ava going forward.

[ghost]

This didn't work either:

require("babel-register")({
  optional: ["es7.decorators"]
});

[Whoaa512]

AVA used to implicitly read in your local .babelrc file before 0.10 (See #398) which would allow you to use es7 or any arbitrary babel plugins.

See #448 to contribute to the discussion on how customizable babel options should be handled.

[sindresorhus]

Yes, we need to resolve this soon. We need more feedback on #448 ;)

[novemberborn]

Closing this in favor of #448, under the assumption that the implementation would be obvious once that lands.