Pretty much, especially Ferrari as they had both Fiorano, their own private test track out the back of their factory, and Mugello at their disposal.
The testing ban also meant the end of having specific 'test teams' whose sole job was to support the test mules, and who could be swapped in/out of the race team as needed. This is part of the reason you keep hearing team staff moaning about having so many races in a season.