```ruby
require_relative 'test_init'

base_dir = File.expand_path(File.dirname(__FILE__))
pattern = File.join base_dir, 'spec/postgresql_connector/*.rb'

files = Dir.glob(pattern).reject { |file| file =~ /_init.rb\z/ }

Runner.! files
```

Test utility files are excluded from the suite using the runner's exclude block
user
```ruby
require_relative 'test_init'

Runner.! 'spec/postgresql_connector/*.rb' do |exclude|
  exclude =~ /_init.rb\z/
end
```
assistant