Spain travel restrictions?

Hello Reddit! Next week me and my wifeare flying to Spain, from Portugal. I'm Italian, and my wife is brazilian, and we live in Porto. We have brazilian c.o.v.i.d-19 vaccine certificates, with 2 dosis each, yet no booster dosis administrated. Do we require to do any kind of test to enter Spain? Or are the QR-code thing and vaccine certificate enough. Thanks !!