Code Quality

This section documents code quality practices and tools used in the Payment Gateway component.

Contents

• Model Brokers: SQL Model Brokers pattern for centralized database access
• Nullable Pattern: Testing without mocks using test doubles and real database
• Code Offenses: Current code offenses and technical debt tracking

Overview

The Payment Gateway aims at high code quality standards through:

• Standardized data access: Model Brokers centralize all database queries
• Comprehensive testing: Database-backed tests with factories, mock-free integration testing
• Performance safeguards: N+1 query detection, lazy loading prevention
• Type safety: Full type hints with MyPy checking