How to tun a test suite with different role assignments and profiles

I have a test suite which I must run as various users-profile I have a teacher, an admin, a teaching assistant and a student. I must run the test suite using each user. I can create a profile for each user, but how would I call each user? I am using Node js and Ava for testing. I figure I could use something like the following, but how do I run the test as each user:

Roles: { teacher: email: ‘teacher@abc.com, password: ‘class123’ }, { Student: email: ‘student@abc.com, password: ‘myclsss’ }