Date: 2025-02-23

Status

Accepted

Context

We need a comprehensive testing strategy that covers:

• Unit testing of individual components
• Integration testing of tool chains
• System command mocking
• Test data management
• Consistent test patterns across modules

Decision

We will implement the following testing strategy:

1. Unit Testing Approach

   • RSpec as primary testing framework
   • TestHelper module for shared functionality
   • Consistent mocking patterns for system commands
   • Standardized stdout/stderr capture
   • Clear test organization by component

2. Test Data Management

   • Fixture data in TestHelper module
   • Temporary directory handling for file operations
   • Standardized metadata samples
   • Cleanup of test artifacts
   • Version controlled test assets

3. Mocking Strategy

   • System command mocking via Open3
   • Consistent patterns for success/failure scenarios
   • Platform-specific behavior simulation
   • External tool response simulation
   • Error condition testing

4. Integration Testing

   • End-to-end workflow validation
   • Tool chain interaction testing
   • File system operation verification
   • Cross-platform compatibility checks
   • Performance benchmarking

Consequences

Positive

• Consistent testing patterns across codebase
• Reliable command mocking
• Reusable test helpers
• Clear test organization
• Good test coverage

Negative

• Additional setup complexity
• Need to maintain test helpers
• Mock maintenance for external tools
• Integration test environment management