# Settings Model Test Suite Summary (Issue #5: DB-4)

## Overview
Comprehensive test suite for Settings model following TDD principles.
Tests written BEFORE implementation (RED phase).

**Total Tests**: 43 (37 unit + 6 integration)
**Coverage Target**: 95%+
**Status**: All tests skipping (awaiting implementation)

## Test Files Created

### 1. Unit Tests: `tests/unit/api/test_settings_model.py`
**37 unit tests** organized in 8 test classes:

#### TestSettingsBasicFields (4 tests)
- Create settings with required fields
- Default values applied correctly
- Settings with all fields specified
- Timestamps auto-populate

#### TestRiskProfileEnum (4 tests)
- CONSERVATIVE risk profile
- MODERATE risk profile
- AGGRESSIVE risk profile
- Invalid risk profile values rejected

#### TestRiskScoreValidation (4 tests)
- Minimum valid (0)
- Maximum valid (10)
- Mid-range values (5.5)
- Out of range values rejected

#### TestMaxPositionPctValidation (3 tests)
- Minimum valid (0%)
- Maximum valid (100%)
- Out of range values rejected

#### TestMaxPortfolioRiskPctValidation (3 tests)
- Minimum valid (0%)
- Maximum valid (100%)
- Out of range values rejected

#### TestInvestmentHorizonValidation (3 tests)
- Valid positive values
- Zero accepted
- Negative values rejected

#### TestAlertPreferencesJSON (8 tests)
- Empty dict accepted
- Email alert configuration
- SMS alert configuration
- Multiple alert channels
- Nested JSON structures
- Rate limiting configuration
- Update preferences
- NULL values handled

#### TestUserRelationship (4 tests)
- Settings belongs to user
- One-to-one constraint enforced
- Cascade delete with user
- Multiple users can have settings

#### TestSettingsConstraints (4 tests)
- Risk score boundary values
- Percentage boundary values
- Decimal precision preserved
- Required user_id constraint

### 2. Integration Tests: `tests/integration/api/test_settings_integration.py`
**6 integration tests** covering:

#### TestSettingsIntegration (6 tests)
- Create settings for user and retrieve
- Update user settings
- Settings isolation between users
- Complex alert preferences workflow
- Query settings by risk profile
- Settings deletion with cascade

### 3. Fixtures Added: `tests/api/conftest.py`
**6 new fixtures** for Settings testing:

#### Data Fixtures
- `settings_data`: Standard MODERATE risk profile
- `conservative_settings_data`: CONSERVATIVE risk profile
- `aggressive_settings_data`: AGGRESSIVE risk profile

#### Model Fixtures
- `test_settings`: Settings instance for test_user
- `conservative_settings`: Conservative settings for test_user
- `aggressive_settings`: Aggressive settings for second_user

## Expected Settings Model Structure

### RiskProfile Enum
```python
class RiskProfile(str, Enum):
    CONSERVATIVE = "CONSERVATIVE"
    MODERATE = "MODERATE"
    AGGRESSIVE = "AGGRESSIVE"
```

### Settings Model Fields
- `id`: Primary key (Integer)
- `user_id`: Foreign key to User (Integer, unique, NOT NULL)
- `risk_profile`: RiskProfile enum (default: MODERATE)
- `risk_score`: Decimal(3,1), range 0-10 (default: 5.0)
- `max_position_pct`: Decimal(5,2), range 0-100 (default: 10.0)
- `max_portfolio_risk_pct`: Decimal(5,2), range 0-100 (default: 2.0)
- `investment_horizon_years`: Integer >= 0 (default: 5)
- `alert_preferences`: JSON (default: {})
- `created_at`: DateTime (auto)
- `updated_at`: DateTime (auto)

### Constraints
1. Check: `risk_score >= 0 AND risk_score <= 10`
2. Check: `max_position_pct >= 0 AND max_position_pct <= 100`
3. Check: `max_portfolio_risk_pct >= 0 AND max_portfolio_risk_pct <= 100`
4. Check: `investment_horizon_years >= 0`
5. Unique: `user_id`
6. Cascade: Delete settings when user deleted

### Alert Preferences JSON Example
```json
{
  "email": {
    "enabled": true,
    "address": "user@example.com",
    "alert_types": ["price_alert", "portfolio_alert"]
  },
  "sms": {
    "enabled": true,
    "phone": "+1234567890",
    "rate_limit": {"max_per_hour": 5}
  }
}
```

## Test Execution

### Run Unit Tests Only
```bash
pytest tests/unit/api/test_settings_model.py --tb=line -q
```

### Run Integration Tests Only
```bash
pytest tests/integration/api/test_settings_integration.py --tb=line -q
```

### Run All Settings Tests
```bash
pytest tests/unit/api/test_settings_model.py tests/integration/api/test_settings_integration.py --tb=line -q
```

### Run with Coverage
```bash
pytest tests/unit/api/test_settings_model.py tests/integration/api/test_settings_integration.py --cov=spektiv.api.models.settings --cov-report=term-missing
```

## Current Status

**All 43 tests are SKIPPING** - This is expected behavior for TDD RED phase.

When Settings model is implemented, tests should:
1. Import the Settings and RiskProfile classes
2. Execute all test scenarios
3. PASS if implementation is correct
4. FAIL if implementation has bugs

## Next Steps

1. **Implement Settings Model** (`spektiv/api/models/settings.py`)
   - Create RiskProfile enum
   - Define Settings class with all fields
   - Add check constraints
   - Set up User relationship

2. **Run Tests** - Should transition from SKIP to PASS/FAIL
   ```bash
   pytest tests/unit/api/test_settings_model.py tests/integration/api/test_settings_integration.py --tb=line -q -v
   ```

3. **Fix Failures** - Address any failing tests

4. **Verify Coverage** - Ensure 95%+ coverage
   ```bash
   pytest tests/unit/api/test_settings_model.py tests/integration/api/test_settings_integration.py --cov=spektiv.api.models.settings --cov-report=term-missing --cov-report=html
   ```

## Test Design Principles

1. **TDD First**: Tests written before implementation
2. **Comprehensive**: 43 tests covering all model aspects
3. **Isolated**: Each test is independent
4. **Clear**: Descriptive test names and docstrings
5. **Grouped**: Organized by functionality
6. **Async**: All tests use async/await patterns
7. **Fixtures**: Reusable test data and models

## Edge Cases Covered

- Boundary values (0, 10, 100)
- Out of range values
- NULL/None handling
- Invalid enum values
- Decimal precision
- JSON structure validation
- Cascade deletion
- One-to-one constraints
- User isolation

## Test Pattern Consistency

All tests follow the same pattern as Portfolio model tests:
- Arrange-Act-Assert structure
- Try/except ImportError for TDD
- pytest.mark.asyncio decorators
- Descriptive docstrings
- Consistent naming conventions

---

**Generated**: 2025-12-26
**Issue**: #5 (DB-4)
**Test Master Agent**