self-hosted runner: runs normal and slow tests on GPU in
     tests and examples:

RUN_SLOW=1 pytest tests/
RUN_SLOW=1 pytest examples/
The results can be observed here.
Running tests
Choosing which tests to run
This document goes into many details of how tests can be run. If after reading everything, you need even more details
you will find them here.
Here are some most useful ways of running tests.
Run all:
console
pytest
or:

make test
Note that the latter is defined as: