Replace books and authors scenarios with payments in the functional tests

[oskarjerzyk]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like
The purpose of this task is to replace former books and authors scenarios with the new one which is payments in every case

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.