Testing Pyramid

Snapshot metrics

• Snapshot date: 2026-02-21.
• Observed status: 26 files passed / 217 tests passed.

Pyramid shape in this codebase

• Unit: validation rules, middleware behavior, use-case decisions.
• E2E: module-level HTTP flows for auth, wallet, category, transaction, budget, dashboard.
• Integration (real calls): OCR and voice provider integrations.

Representative coverage anchors

• Unit: backend/src/tests/unit/*.test.ts
• E2E: backend/src/tests/e2e/**/*.e2e.test.ts
• Integration: backend/src/tests/integration/*.real.test.ts

Why this matters

• Fast unit tests catch regressions in business rules.
• E2E tests verify route-to-database behavior with middleware stack.
• Real-call integration tests validate external provider contracts and parsing assumptions.