🧪 TestKraft: AI-Generated Unit Tests

[HarshitSN]

Summary

Generated by TestKraft - AI-powered test generation platform

This PR adds comprehensive unit tests for the backend configuration module.

Files Tested

Backend:

• backend/app/core/config.py - Configuration settings management with Pydantic

Test Framework Used

• Python: pytest with fixtures, parametrize, and monkeypatch

Coverage Highlights

The generated tests provide comprehensive coverage including:

Default Values Testing

• ✅ PROJECT_NAME default value
• ✅ API_V1_STR default value
• ✅ ACCESS_TOKEN_EXPIRE_MINUTES default (7 days = 10,080 minutes)
• ✅ CORS_ORIGINS default value

Required Field Validation

• ✅ Missing SECRET_KEY raises ValidationError
• ✅ Missing DATABASE_URL raises ValidationError
• ✅ Both required fields missing validation
• ✅ Empty string validation for required fields

Environment Variable Loading

• ✅ Load all configuration from environment variables
• ✅ Override default values from environment
• ✅ Multiple configuration scenarios (dev, prod, minimal)

Boundary Value Analysis

• ✅ ACCESS_TOKEN_EXPIRE_MINUTES: zero, negative, 1, very large values
• ✅ String lengths: empty, single character, very long (1000+ chars)
• ✅ Numeric boundaries: min, max, threshold values

Special Characters & Edge Cases

• ✅ Special characters in SECRET_KEY (!@#$%^&*...)
• ✅ Special characters in DATABASE_URL (passwords with symbols)
• ✅ Unicode characters in PROJECT_NAME
• ✅ Multiple CORS origins (comma-separated)
• ✅ API paths with/without leading slashes

Equivalence Class Partitioning

• ✅ Parametrized tests for valid DATABASE_URL formats
• ✅ Parametrized tests for valid ACCESS_TOKEN_EXPIRE_MINUTES values
• ✅ Parametrized tests for valid CORS_ORIGINS formats
• ✅ Parametrized tests for valid API_V1_STR formats

Model Configuration

• ✅ Extra fields ignored (extra="ignore" setting)
• ✅ Settings immutability verification
• ✅ Model config env_file setting

Integration Scenarios

• ✅ Production-like configuration
• ✅ Development configuration
• ✅ Minimal required configuration
• ✅ All fields overridden scenario

Test Statistics

• Backend files analyzed: 1
• Frontend files analyzed: 0
• Test files generated: 1
• Total test cases: 60+
• Language/Framework: Python with pytest

Test Organization

Tests are organized into logical classes:

• TestSettingsDefaults - Default value verification
• TestSettingsRequiredFields - Required field validation
• TestSettingsEnvironmentVariables - Environment loading
• TestSettingsBoundaryValues - Boundary value analysis
• TestSettingsSpecialCharacters - Special character handling
• TestSettingsEquivalenceClasses - Equivalence partitioning
• TestSettingsModelConfig - Pydantic model configuration
• TestSettingsInvalidInputs - Error handling
• TestSettingsIntegration - Integration scenarios

Dependencies

All required testing dependencies are already present in requirements.txt:

• pytest>=8.1.1
• pytest-asyncio>=0.23.5

No additional dependencies need to be installed.

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