new.rb

last_response.body.should match_json({
  user: {
    id:        :user_id,
    username:  'chancancode',
    full_name: 'Godfrey Chan',
    email:     'godfrey@example.com',
    type:      'Administrator',
    points:    Fixnum,
    homepage:  /\Ahttps?\:\/\/.*\z/i,
    created_at: WILDCARD_MATCHER,
    updated_at: WILDCARD_MATCHER,
    posts: [
      {
        id:      Fixnum,
        subject: 'Hello world!',
        user_id: :user_id,
      }.ignore_extra_keys!,
      {
        id:      Fixnum,
        subject: 'An awesome blog post',
        user_id: :user_id,
      }.ignore_extra_keys!
    ].ordered!
  }
})

old.rb

last_response.body.should match_json({
  'user' => {
    'id'         => :user_id,
    'username'   => 'chancancode',
    'full_name'  => 'Godfrey Chan',
    'email'      => 'godfrey@example.com',
    'type'       => 'Administrator',
    'points'     => Fixnum,
    'homepage'   => /\Ahttps?\:\/\/.*\z/i,
    'created_at' => WILDCARD_MATCHER,
    'updated_at' => WILDCARD_MATCHER,
    'posts'      => [
      {
        'id'      => Fixnum,
        'subject' => 'Hello world!',
        'user_id' => :user_id
      }.ignore_extra_keys!,
      {
        'id'      => Fixnum,
        'subject' => 'An awesome blog post',
        'user_id' => :user_id
      }.ignore_extra_keys!
    ].ordered!
  }
})