```ruby
FactoryGirl.define do
  factory :news_item do
    title 'News Headline'
    link 'http://example.com/news/1'
  end
end
```

Fix factory for NewsItem so tests pass.
user
```ruby
FactoryGirl.define do
  factory :news_item do
    title 'News Headline'
    link 'http://example.com/news/1'
    body 'news body'
  end
end
```
assistant