public void InsertMoneySeveralTimesTest()
{
//arrange
var vm = new VendingController(false);
var expInitialMoney = 0;
var expFirstBuyRemains = 20;
var expSecondBuyRemains = 20;
var expThirdBuyRemains = 20;
//act
var actInitialMoney = vm.Payment;
bool insertResult1 = vm.InsertMoney(20);
var actFirstInsertRemainders = vm.Payment;
bool insertResult2 = vm.InsertMoney(-50); //negative value, not in denominations
var actSecondInsertRemainders = vm.Payment;
bool insertResult3 = vm.InsertMoney(133); //not in denominations
var actThirdInsertRemainders = vm.Payment;
//assert
Assert.Equal(expInitialMoney, actInitialMoney);
Assert.Equal(expFirstBuyRemains, actFirstInsertRemainders);
Assert.Equal(expSecondBuyRemains, actSecondInsertRemainders);
Assert.Equal(expThirdBuyRemains, actThirdInsertRemainders);
Assert.True(insertResult1);
Assert.False(insertResult2);
Assert.False(insertResult3);
}
public void PropertyPaymentTest()
{
//Arrange
var vm1 = new VendingController(true);
int expectedInitialPayment = 0;
int expectedChangedPayment = 20;
var vm2 = new VendingController(false);
//Act
int actualInitialPayment = vm1.Payment;
//set method is private, can only be set from other methods in the class
bool goodInsert = vm1.InsertMoney(20);
int actualChangedPayment = vm1.Payment;
//item 0 costs more than available... expects Payment to be unchanged
string purchaceResult = vm1.Purchase(0);//item 0 costs more than available... expects Payment to be unchanged
int actualPayment = vm1.Payment;
bool insertResult = vm1.InsertMoney(-100); //-100 is not in denomination, should not be accepted
int actualPaymentAfterFailedInsert = vm1.Payment;
//Assert
Assert.Equal(expectedInitialPayment, actualInitialPayment);
Assert.True(goodInsert);
Assert.Equal(expectedChangedPayment, actualChangedPayment);
Assert.Equal(actualChangedPayment, actualPayment);
Assert.Contains("More money needed", purchaceResult);
Assert.Equal(actualChangedPayment, actualPaymentAfterFailedInsert);
Assert.False(insertResult);
}
public void MultiplePurchasesTest()
{
//Arrange
var vm = new VendingController(true);
var expInitialMoney = 0;
var expInsertMoney1 = 10;
var expInsertMoney2 = 10;
//Act
var actInitialMoney = vm.Payment;
vm.InsertMoney(10);
var actInsertMoney1 = vm.Payment;
vm.InsertMoney(-1); //should not be accepted since it is not in denominations
var actInsertMoney2 = vm.Payment; //money should remain the same
string returnString = vm.Purchase(1); //purchase item 1 with price 15 (more money needed)
var actPurchase1Remainder = vm.Payment;
string returnString2 = vm.Purchase(7); //purchase item 7 with price 10
var actPurchase2Remainder = vm.Payment;
//Assert
Assert.Equal(expInitialMoney, actInitialMoney);
Assert.Equal(expInsertMoney1, actInsertMoney1);
Assert.Equal(expInsertMoney2, actInsertMoney2);
Assert.Contains("More money needed", returnString);
Assert.Equal(expInsertMoney2, actPurchase1Remainder);
Assert.Contains("Water", returnString2);
Assert.Equal(0, actPurchase2Remainder);
}
public void InsertMoneyTest(int amount, bool expectedResult, int expectedAmount)
{
//arrange
var vm = new VendingController(false);
//act
bool insertResult = vm.InsertMoney(amount);
//assert
Assert.Equal(insertResult, expectedResult);
Assert.Equal(expectedAmount, vm.Payment);
}
public void PurchaseTest(int availableMoney, int choice, string expectedResult)
{
//Arrange
var vm = new VendingController(true);
vm.InsertMoney(availableMoney);
//Act
string actualReturnString = vm.Purchase(choice);
//Assert
Assert.Contains(expectedResult, actualReturnString);
}
public void EndTransactionTest(int availableMoney, int choice, int expChange, string expResult)
{
//Arrange
var vm = new VendingController(true);
vm.InsertMoney(availableMoney);
vm.Purchase(choice);
int actualPayment = vm.Payment;
//Act
string actualResult = vm.EndTransaction();
//Assert
Assert.Equal(expChange, actualPayment);
Assert.Contains(expResult, actualResult);
}
