```ruby
require 'spec_helper'

describe Outbox::Rails do
  it 'has a version number' do
    Outbox::Rails::VERSION.should_not be_nil
  end
end
```

Use newer version of rspec syntax
user
```ruby
require 'spec_helper'

describe Outbox::Rails do
  it 'has a version number' do
    expect(Outbox::Rails::VERSION).to_not be_nil
  end
end
```
assistant