Who covers the costs incurred by testing and application for foreign universities?
It is the candidates who cover such costs. The costs related to the tests asked for by universities are compulsory, but as for the application costs, you can send a fee waiver request signed by the high-school or faculty manager confirming that the pupil/student does not have the financial means required by application and asking for a no fee application acceptance, by specifying the details related to his/her financial status (his/her own or his/her parents wages, etc.).