vjeux

// Solution #1: Generic Override (like CSS)

var ButtonGroup = React.createClass({
  render() {
    return <div>{this.props.buttons.map((btn, i) => 
      <Button style={{
        ...(i !== 0 && {marginLeft: 0})
        ...(i !== this.props.buttons.length - 1 && {marginRight: 0})
      }} />
    )}</div>;

karlbright

var React = require.requireActual('react')
var assign = require.requireActual('object-assign')

function stubContext(Component, context) {
  var _component = Component
  var _context = context
  var _contextTypes = {}

  Object.keys(_context).forEach((key) => {
    _contextTypes[key] = React.PropTypes.any