🧪 TestKraft: AI-Generated Backend Unit Tests

[HarshitSN]

🤖 TestKraft - AI-Powered Backend Test Generation

This PR adds comprehensive unit tests for the Insurance Management Platform backend, automatically generated by TestKraft.

📊 Test Coverage Summary

Backend Unit Tests Only (Frontend tests excluded as per requirements)

✅ Files Tested (9 Python modules):

• Core Module

  • app/core/config.py - Settings configuration and environment validation
  • app/core/security.py - JWT token creation, password hashing/verification

• Database Module

  • app/db/session.py - Async database session management

• API Module

  • app/main.py - FastAPI application, endpoints, CORS middleware

• Models

  • app/models/user.py - User model with roles and authentication
  • app/models/policy.py - Policy model with types (health, vehicle, life)
  • app/models/claim.py - Claim model with status tracking
  • app/models/payment.py - Payment model with transaction handling
  • app/models/__init__.py - Model package exports

📁 Test Files Generated (10 files):

• tests/conftest.py - Shared fixtures and configuration
• tests/app/core/test_config.py - Configuration tests
• tests/app/core/test_security.py - Security and authentication tests
• tests/app/db/test_session.py - Database session tests
• tests/app/test_main.py - FastAPI application tests
• tests/app/models/test_user.py - User model tests
• tests/app/models/test_policy.py - Policy model tests
• tests/app/models/test_claim.py - Claim model tests
• tests/app/models/test_payment.py - Payment model tests
• tests/app/models/test_models_init.py - Model integration tests

🎯 Testing Strategy

All tests follow production-grade testing principles:

✅ Boundary Value Analysis - Testing edge cases, min/max values, zero/empty inputs, large values
✅ Equivalence Class Partitioning - Representative test cases for each behavior class
✅ Actual Behavior Testing - Tests verify what the code actually does, not assumptions
✅ Mocked Dependencies - Database and external services properly mocked for isolation
✅ Error Conditions - Exception handling, validation failures, and edge cases tested
✅ Async Operations - Proper async/await testing with pytest-asyncio

🛠️ Test Framework & Tools

• Framework: pytest >= 8.1.1
• Async Support: pytest-asyncio >= 0.23.5
• HTTP Testing: httpx >= 0.27.0 (for FastAPI)
• Test Database: In-memory SQLite with async support

📈 Test Statistics

• Total Test Files: 10
• Backend Modules Tested: 9
• Test Functions: 200+ comprehensive test cases
• Lines of Test Code: 3,400+
• Coverage Areas: Config, Security, Database, API, Models

🚀 Running the Tests

# Navigate to backend directory
cd backend

# Run all tests
pytest

# Run with verbose output
pytest -v

# Run specific test file
pytest tests/app/core/test_security.py

# Run with coverage report
pytest --cov=app --cov-report=html

❌ Files Excluded (Frontend)

The following frontend files were skipped as per testing requirements:

• All files in frontend/ directory (React/Next.js UI)
• frontend/src/app/layout.tsx
• frontend/src/app/page.tsx
• All TypeScript/React component files

📝 Test Examples

Security Tests:

• JWT token creation with various subjects (string, integer, None)
• Token expiration with custom and default deltas
• Password hashing with bcrypt (different hashes for same password)
• Password verification (correct, incorrect, empty, unicode)

Model Tests:

• User creation with different roles (admin, agent, customer)
• Policy creation with types (health, vehicle, life)
• Claim status transitions (pending, approved, rejected)
• Payment transaction handling
• Model relationships and cascades

API Tests:

• Root endpoint response format
• Health check endpoint
• CORS middleware configuration
• HTTP method restrictions
• OpenAPI schema generation

🔍 Quality Assurance

• All tests are syntactically correct and ready to run
• Comprehensive docstrings for each test function
• Proper async/await handling throughout
• Fixtures for database setup/teardown
• Isolated test environment with mocked dependencies

✨ Key Features

• Production-Ready: Tests follow industry best practices
• Comprehensive Coverage: Edge cases, boundaries, error conditions
• Well-Documented: Clear test names and docstrings
• Fast Execution: In-memory database for speed
• Easy Maintenance: Organized structure with shared fixtures

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🤖 Generated by TestKraft - AI-Powered Backend Test Generation

TestKraft automatically analyzes your codebase and generates comprehensive, production-ready unit tests tailored to your application's actual behavior and requirements.