Test/add emotion action tests

[LupaFlex]

Summary

Added comprehensive unit tests for the emotion action module which previously had no test coverage.

Changes

• tests/actions/emotion/test_interface.py: Tests for EmotionAction enum, EmotionInput dataclass, and Emotion interface
• tests/actions/emotion/connector/test_unitree_sdk.py: Tests for EmotionUnitreeConfig and EmotionUnitreeConnector

Test Coverage

• EmotionAction enum values and type validation
• EmotionInput creation with all action types
• Emotion interface with input/output handling
• EmotionUnitreeConfig default and custom values
• EmotionUnitreeConnector initialization with/without ethernet
• LED control for all emotions (happy, sad, mad, curious)
• Tick method behavior

Testing

• All 17 tests pass
• Pre-commit checks pass
• Ruff linting passes

Notes

• Follows existing test patterns (no __init__.py files in test directories)
• Uses proper module mocking for external dependencies

[0xbyt4]

Hi @LupaFlex, thanks for removing the init.py files! However, the other issues from #2129 review still remain — please see tests as reference: use scope="session", add reset_mocks fixture, move imports to top-level, and verify SetTimeout/Init/LedControl calls in init test.

[LupaFlex]

Hi @0xbyt4 thanks for the detailed feedback I've addressed all the points

• Added reset_mocks fixture with autouse=True
• Moved imports to top-level (after module-level mocking)
• Added verification for SetTimeout, Init, and LedControl calls in test_init_with_ethernet

[LupaFlex]

hi @0xbyt4 I have fixed it