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Empecemosconunejemplosimple.Supongamosquehemosescritounaaplicaciónbancariay

quetenemosunaclasededominiobásicadeCuentabancaria(Account).Accountsoporta

operacionesparadepósito(deposit),retiro(withdraw)ytransferencia(transfer)defondos.La

claseseríaalgosimilaraesto:

namespacebank

{

publicclassAccount

{

privatefloatbalance;

publicvoidDeposit(floatamount)

{

balance+=amount;

}

publicvoidWithdraw(floatamount)

{

balance-=amount;

}

publicvoidTransferFunds(Accountdestination,floatamount)

{

}

publicfloatBalance

{

get{returnbalance;}

}

}

}

Ahoravamosaescribirunapruebaparaestaclase-AccountTest.Elprimermétodoque

probaremosserátransferenciadefondos(TransferFunds).

namespacebank

{

usingNUnit.Framework;

[TestFixture]

publicclassAccountTest

{

[Test]

publicvoidTransferFunds()

{

Accountsource=newAccount();

source.Deposit(200.00F);

Accountdestination=newAccount();

destination.Deposit(150.00F);

source.TransferFunds(destination,100.00F);

Assertion.AssertEquals(250.00F,destination.Balance);

Assertion.AssertEquals(100.00F,source.Balance);