Wikidata SpecialPage setlabel needs tests
completed by: Bene
mentors: Addshore, Lydia Pintscher
The SpecialPage in the Wikibase software to set labels needs tests. Write them and submit them for code-review.
https://www.wikidata.org/wiki/Special:SetLabel is the SpecialPage. It is used to set a label for an item in Wikidata.