Bolsonaro told CNN Brazil that he underwent an X-ray of his lungs at a military hospital as a precaution.
Local media said the virus test results would come at about midday Tuesday.
He also said he was taking hydroxychloroquine as a preventive measure.
Brazilian president Jair Bolsonaro, who has long minimised the risks posed by the coronavirus, said Monday he had been tested after showing symptoms including a fever.
Bolsonaro told CNN Brazil that he underwent an X-ray of his lungs at a military hospital as a precaution.
