- Remove all tests/ directories under modules/source/
- Keep main tests/ directory for testing exported functionality
- Update status command to check tests in main tests/ directory
- Update documentation to reflect new test structure
- Reduce maintenance burden by eliminating duplicate test systems
- Focus on inline NBGrader tests for development, main tests for package validation
- Prioritize student learning effectiveness over context switching
- Define three-tier architecture: Inline → Module → Integration
- Emphasize comprehensive inline testing with educational context
- Maintain professional module tests for grading
- Preserve flow state by keeping students in notebooks
- Provide immediate, encouraging feedback with visual indicators
- Define clear goals for each testing tier: Unit → Module → Integration → System
- Implement mock-based module testing to avoid dependency cascades
- Provide comprehensive examples for each testing level
- Establish clear interface contracts through visible mocks
- Enable independent module development and grading
- Ensure realistic integration testing with vetted solutions