PR #456 test: ⚡ add missing test for coverage

Squashed commit of the following:

web-flow committed on 2022-10-15 16:05

test: :test_tube: Finished test for notebook

web-flow committed on 2022-10-16 10:38

fix: :bug: Smelling code by duplication

web-flow committed on 2022-10-16 10:43

fix: :ambulance: Prettier linting

Anselmoo committed on 2022-10-16 13:23

spectrafit test: ⚡ add missing test for coverage #456 Merged