public void Withdraw_ValidAmount_ChangesBalance_WithStub() // using stub
{
// arrange
double currentBalance = 10.0;
double withdrawal = 1.0;
double expected = 9.0;
//var account = new CheckingAccount("JohnDoe", currentBalance);
StubIBankDb fakeBankDb = new BankDb.Fakes.StubIBankDb();
fakeBankDb.WithdrawInt32Double = (id, amount) => 9.0;
// same as: fakeBankDb.WithdrawInt32Double = (id, amount) => { return 9.0; };
var account = new CheckingAccount("JohnDoe", currentBalance, fakeBankDb);
// act
account.WithdrawFromDb(withdrawal);
double actual = account.Balance;
// assert
Assert.AreEqual(expected, actual);
}
public void Withdraw_ValidAmount_ChangesBalance_WithStub_UsingOut() // using stub and out parameter
{
// arrange
double currentBalance = 10.0;
double withdrawal = 1.0;
double expected = 9.0;
StubIBankDb fakeBankDb = new BankDb.Fakes.StubIBankDb();
fakeBankDb.WithdrawWithOutInt32DoubleDoubleOut = (int id, double amount, out double balance) =>
{
balance = 9.0;
return(true);
};
var account = new CheckingAccount("JohnDoe", currentBalance, fakeBankDb);
// act
account.WithdrawFromDbUsingOut(withdrawal);
double actual = account.Balance;
// assert
Assert.AreEqual(expected, actual);
}