Testing

Fabric CLI tests

Fabric CLI supports 2 types of tests, E2E for commands and unit tests for non-commands code like utils and core functionality.

Maintain coverage: Keep test coverage at current levels (~90% for commands, ~80% overall)
Add tests for new features: All new functionality must include appropriate tests
Test both success and failure cases: Cover normal operation and error conditions
Use descriptive test names: Test names should clearly describe what is being tested