Unit Tests

[mairas]

Implementation Details

• Add unit tests for all modules:
  • I2C encoding/decoding (protocol.rs)
  • Data type conversions (types.rs)
  • Configuration loading (config.rs)
  • State machine transitions (machine.rs)
  • HTTP handler logic (use mock state)
  • CLI argument parsing
• Use mocks for I2C device (avoid hardware dependency)
• Target >70% code coverage

Test Scenarios

• All public functions have tests
• Edge cases are tested (invalid input, error conditions)
• Mock I2C device for hardware abstraction
• Configuration loading with various inputs

Acceptance Criteria

• Unit tests pass
• Code coverage >70%
• All modules have tests
• Tests use mocks where appropriate

Caveats

• Hardware I2C testing requires actual device (defer to integration tests)
• Mock I2C device carefully to match real behavior

Dependencies

• All implementation tasks