A Go script generated gist.

react-testing-15.js

const Comment = props => {
  const isLiked = props.likes.includes(props.currentUser.id)
  const onClick = isLiked
    ? () => props.onDislike(props.id)
    : () => props.onLike(props.id)
  return (
    <div className="Comment">
      <h4>{props.author}</h4>
      <p>{props.text}</p>

      <button data-testid={props.id} onClick={onClick}>
        {isLiked ? 'Unlike' : 'Like'}
      </button>
    </div>
  )
}