Improve test coverage

[epenet]

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[github-actions]

🎉 HACS repository validator action summary 🎉
✅ The repository is not archived
✅ manifest.json file exist
✅ All required keys are present in manifest.json
✅ hacs.json has the 'name' key set
✅ The repository has a description
⚪ Ignored check: brands
✅ The repository has topics
✅ The repository has issues enabled
✅ This day ends with an 'y' (Thursday)
✅ info.md exists
✅ Requirements validation
✅ Python wheels
✅ HACS load check