public void Update_GivenOneStudentInFile_ShouldReturnAStudentWithDiferentNameAndAge()
{
var json = "[{ \"Id\":\"1\", \"Name\":\"Pepe\", \"LastName\":\"Perez\", \"Age\": 20}]";
File.WriteAllText(FileName, json);
var student = new Student
{
Id = 1,
Name = "Max",
LastName = "Perez",
Age = 21
};
var jsonStudentDao = new JsonStudentDao();
var updateStudent = jsonStudentDao.Update(student);
jsonStudentDao.GetAll();
Assert.AreEqual(updateStudent.Name, student.Name);
Assert.AreEqual(updateStudent.LastName, student.LastName);
Assert.AreEqual(updateStudent.Age, student.Age);
}