public void turn_purchase()
{
//defualt price of one turn is 1000
int money = 3000;
int turn = 0;
int num = 4;
turn sys = new turn();
Assert.IsNotNull(sys);
sys.buyturn(num, turn, money);
//Assert.AreNotEqual(0, turn);
Assert.AreEqual(-1, sys.buyturn(num, turn, money));
}
public void turnConstruct()
{
turn sys = new turn();
Assert.IsNotNull(sys);
}