public void UpdateRecordsTest()
{
string file = "myfile.txt";
ApplicantDatabase ad = ApplicantDatabase.InitializeDatabase(file);
Applicant a = new Applicant("1892184593201,Alex,Radu,7,4.75,4,4.5,0");
ad.InsertRecord(a);
ad.UpdateRecords("Surname", "Alex", "TestGrade", "8");
Assert.IsTrue(ApplicantDatabase.PropHasValue(a, "TestGrade", "8"));
}