[TestMethod] //PSUJ to change Success
        public async Task testAllStudentsAsync()
        {
            var options = new DbContextOptionsBuilder <ApplicationDbContext>()
                          .UseInMemoryDatabase(databaseName: "testAllStudentsAsync")
                          .Options;

            studentsList.Add(student1);
            studentsList.Add(student2);
            studentsList.Add(student3);

            using (var context = new ApplicationDbContext(options))
            {
                context.Students.Add(student1);
                context.Students.Add(student2);
                context.Students.Add(student3);
                context.SaveChanges();
            };

            using (var context = new ApplicationDbContext(options))
            {
                var service = new ListController(context);
                var result  = await service.AllStudentsAsync();

                Assert.AreEqual(studentsList.Count(), result.Count());
            }
        }