BUG: test for empty input construct
- [ ] closes #47959
- [ ] [Tests added ]

Hello @Th3nn3ss! Thanks for updating this PR. We checked the lines you've touched for [PEP 8](https://www.python.org/dev/peps/pep-0008) issues, and found:



There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers: 

##### Comment last updated at 2022-08-31 14:40:27 UTC Great idea. 

Closing this as all tests for empty inputs are subsequently added to #48327 