* Change config entry state to an enum
* Allow but deprecate EntryState str equality comparison
* Test fixes
* Rename to ConfigEntryState
* Remove str comparability backcompat
* Update new occurrences of strs cropped up during review
* Add first two testcases
* Remove repetition
* Add first two testcases
* Remove repetition
* Add connection error test case
* add test_setup_entry_credentials_valid
* First attempt to use fixtures
* Use markers
* Optimize patch
* Optimize marker use
* Always patch mydevolo
* Add first two testcases
* Remove repetition
* Add first two testcases
* Remove repetition
* Add connection error test case
* add test_setup_entry_credentials_valid
* First attempt to use fixtures
* Use markers
* Optimize patch
* Optimize marker use
* Always patch mydevolo
* Add unload entry test case
* Catch up with reality
* Use unittest patch
* Use core interface to start tests
* Use entry state
* Consistently assert entry state
* Patch class instead of init
Co-authored-by: Markus Bong <2Fake1987@gmail.com>