Switzerland allows those from the European Economic Area (EU plus Iceland, Norway, and Lichtenstein) to exchange their foreign driver’s license for a Swiss equivalent without having to take a test, as long as it is exchanged within 12 months of taking up residence in Switzerland.
https://worldpassporte.com/
Those from outside the EEA will need to take a practical driving test in Switzerland after 12 months in order to exchange their license. Nationals from certain non-EU countries also have to sit the Swiss driving theory test.