```ruby
$LOAD_PATH.unshift(File.dirname(__FILE__) + '/../../lib')
require 'database_cleaner'

require 'rspec/expectations'

require 'test/unit/assertions'

```

Remove unused requirement of test/unit/assertions
user
```ruby
$LOAD_PATH.unshift(File.dirname(__FILE__) + '/../../lib')
require 'database_cleaner'

require 'rspec/expectations'
```
assistant