public void TripDBTest()
{
TripDB tripDB = new TripDB();
int p = tripDB.getNoOfPayer();
int n = tripDB.getNoOfTrip();
Assert.AreEqual(p, 0);
Assert.AreEqual(n, 0);
}
public void getNoOfPayerTest()
{
TripDB tripDB = new TripDB();
int tripID = tripDB.addTrip(3);
int payerId1 = tripDB.addPayer(tripID, 0, 1);
int payerId2 = tripDB.addPayer(tripID, 1, 1);
int payerId3 = tripDB.addPayer(tripID, 2, 1);
int p = tripDB.getNoOfPayer();
Assert.AreEqual(p, 3);
}