The above article is all the information that I have at the moment.
The requirements to travel to Spain had been extended until May 15th. As many of you know I always like to share the official sources and government announcements when providing these videos. When I have more information about the official post in the BOE I will update.
If you want to know what the current restrictions are to enter Spain, check out this video:
Because of the constant updating of information about travel restrictions and safety measures while traveling due to COVID-19, before travelling, you should always consult the requirements and recommendations of the public bodies and competent national authorities in Spain and your country of origin. The information found in these videos is not binding and has no regulatory effect. Citing Patrick Guide Barcelona at the borders will definitely not help you out. All information is taken from the official websites of the rest of the countries, and Autonomous Communities of Spain.