Hi Liremy,
In my university the language test is a prerequisite for all those students' whose first language is not English. This can be waived if you can demonstrate that you have been a member of staff, or you have previous experience of studies in the UK. If I were you I would discuss it with your future supervisor/ relevant member of staff in the Language Centre/ administration. They usually provide short courses on academic English prior to the entry tests, so it might worth to ask about them as well. Funding is usually allocated on the basis of your academic history, but there may be huge variations depending on the department, number of students, subject etc.