Hi @Dmitrii Kalashnikov​ 

If you want to directly run tests from the interface, you can do that by installing Nutter using PyPi on databricks cluster.

This blog might help you further...

https://damle-amit075.medium.com/a-2minute-guide-to-unit-test-your-databricks-notebooks-b1c2c937b0b

Do ping for queries so that community can help...

Cheers..