| Name | Lines of code | Maintainability | Test coverage |
| spec/fattura24/api/response_spec.rb | 82 | A 0 mins | A 100% |
| spec/fattura24/api/get_template_spec.rb | 95 | A 0 mins | A 100% |
| spec/fattura24/api/save_customer_spec.rb | 96 | A 20 mins | A 100% |
| spec/fattura24/api/save_document_spec.rb | 110 | A 1 hr | A 100% |
| spec/fattura24/api/get_product_spec.rb | 148 | A 3 hrs | A 100% |