# Backend Test Coverage Analysis

**Date:** 2026-01-01
**Overall Coverage:** 27.2%

## 1. Coverage Breakdown

### ✅ Well Covered Components
*   **Job Service:** `internal/services/job_service.go`
    *   `CreateJob`: 100%
    *   `DeleteJob`: 100%
*   **Notification Service:** `internal/services/notification_service.go`
    *   `CreateNotification`: 100%
    *   `MarkAsRead`: 100%
*   **Ticket Service:** `internal/services/ticket_service.go` (87.5% Create, 83.3% List)
*   **Sanitizer Utils:** `internal/utils/sanitizer.go` (100%)

### ⚠️ Critical Gaps (0% - Low Coverage)
*   **Auth Service:** `internal/services/auth_service.go` (0%) - **CRITICAL**
*   **Company Service:** `internal/services/company_service.go` (0%) - **HIGH PRIORITY**
*   **Email Service:** `internal/services/email_service.go` (0%)
*   **Settings Service:** `internal/services/settings_service.go` (0%)
*   **Storage Service:** `internal/services/storage_service.go` (0%)
*   **Handlers:**
    *   `settings_handler` and `storage_handler` lack dedicated test files.
    *   `admin_handlers` and `core_handlers` have tests but coverage is partial (11.2% aggregate).

## 2. Database & Architecture Verification

### Usage of Real Database
*   **Verified:** Yes.
*   **Evidence:** `backend/tests/verify_login_test.go` effectively connects to a real PostgreSQL instance (via `DATABASE_URL` or fallback dev DB) to validate password hashing and user existence.
*   **Status:** Diagnostic tests rely on real infrastructure, while unit tests (`database_test.go`) correctly use `go-sqlmock` for isolation.

## 3. Recommendations
1.  **Prioritize Auth & Company Tests:** Create unit tests for `auth_service` and `company_service` as they are core business logic.
2.  **Add Handler Tests:** Create `settings_handler_test.go` and `storage_handler_test.go`.
3.  **Improve Core Logic Coverage:** Increase coverage for `GetJobs` (currently 38.1%) and `UpdateJob` (62.1%).