Put someone through one's paces

Put someone to the test / Try someone


Mettere qualcuno alla prova


Meanings
Fig: to test someone carefully to see what they can do

Examples
You don't believe I can do it? Try me!
Non credi che io sia capace di tanto? Mettimi alla prova!

The film director knew that the young actress was “well-connected”, but he decided to put her through her paces during the audition just to be sure
Il regista sapeva che la giovane attrice era stata “raccomandata”, ma, per andare sul sicuro, ha deciso di metterla alla prova durante il provino

Origin
The mentioned "paces" are horses' paces: trot, canter and gallop. In particular, the expression refers to testing a horse's ability in its different paces.