```ruby
require 'spec_helper'

describe Delayed::Backend::Mongoid::Job do
  it_should_behave_like 'a delayed_job backend'
end
```

Convert specs to the new RSpec expectation syntax
user
```ruby
require 'spec_helper'

describe Delayed::Backend::Mongoid::Job do
  it_behaves_like 'a delayed_job backend'
end
```
assistant