[TestMethod]//method
public void Adult_Tuesday_Test()
{
//Arrange data to test
int quantity = 2;
double actual_price = 13;
string person = "adult";
double expected = 26.0;
string day = "Tuesday";
//Act creating the class
Tickets Cin = new Tickets();
Cin.Adult_Tuesday(quantity, person, day);
//Assert
double total_price = quantity * actual_price;
Assert.AreEqual(expected, total_price, 13, "Passed");
}