public async void addCoursetoStudentWishlistTest_HappyPath()
{
int outcome = await _wishlistService.addCoursetoStudentWishlist(2, 6);
Assert.True(outcome == 0);
List <int> wishlist = _context.Wishlist.Where(w => w.studentId == 2).Select(w => w.courseId).ToList();
Assert.True(wishlist.Contains(6), "student 2 has course 6 in wishlist");
}
