public async Task When__UserStore_Add_To_Role__Expect__User_Added_To_Role() { string roleName = "Report User"; int userId = 1; ApplicationUser user = await _userStore.FindByIdAsync(userId).ConfigureAwait(false); Assert.That(user, Is.Not.Null, "User not found"); await _userStore.AddToRoleAsync(user, roleName).ConfigureAwait(false); _unitOfWork.SaveChanges(); IList <string> roles = await _userStore.GetRolesAsync(user).ConfigureAwait(false); string savedRole = roles.Where(p => p == roleName).FirstOrDefault(); Assert.That(savedRole, Is.Not.Null, "User not added to role"); }