* Removed depemdency to unicode example in tests config.
* Added common methods for creating dashboards for tests.
* Added fixtures to all tests which were using unicode example.
* Added cleanup for unicode_test table
* Removed unnecessary fixture parts of unicode dashboard tests
* Parametrized creating slice for tests
* Moved fixtures for unicode test to separate file and refactored to several methods. Added param types and return types.
* Cleandup after fix
* Changed variable names to more readable
* Added cleanup for dashboards and slices
* Applied unicode fixture to charts api tests
* Update schema variable to dtype in dashboard utils
Co-authored-by: Ville Brofeldt <33317356+villebro@users.noreply.github.com>
* Changed variable schema to dtype in dashboards. Replaced accessing first element with one_or_none
Co-authored-by: Ville Brofeldt <33317356+villebro@users.noreply.github.com>
* test connection api on databases
* update test connection tests
* update database api test and open api description
* moved test connection to commands
* update error message
* fix isort
* fix mypy
* fix black
* fix mypy pre commit
* feat(database): POST, PUT, DELETE API endpoints
* post tests
* more tests
* lint
* lint
* debug ci
* fix test
* fix test
* fix test
* fix test
* fix test
* fix test
* cleanup
* handle db connection failures
* lint
* skip hive and presto for connection fail test
* fix typo
