public void Debit_WhenAmountIsLessThanZero_ShouldThrowArgumentOutOfRange( )
{
// arrange
double beginningBalance = 11.99;
double debitAmount = -100.00;
BankAccountNT account = new BankAccountNT("Mr. Sinjul MSBH", beginningBalance);
// act
account.Debit(debitAmount);
// assert is handled by ExpectedException
}
public void Debit_WithValidAmount_UpdatesBalance( )
{
// arrange
double beginningBalance = 11.99;
double debitAmount = 4.55;
double expected = 7.44;
BankAccountNT account = new BankAccountNT("Mr. Sinjul MSBH", beginningBalance);
// act
account.Debit(debitAmount);
// assert
double actual = account.Balance;
Assert.AreEqual(expected, actual, 0.001, "Account not debited correctly");
}
public void Debit_WhenAmountIsMoreThanBalance_ShouldThrowArgumentOutOfRange( )
{
// arrange
double beginningBalance = 11.99;
double debitAmount = 20.0;
BankAccountNT account = new BankAccountNT("Mr. Sinjul MSBH", beginningBalance);
// act
try
{
account.Debit(debitAmount);
}
catch (ArgumentOutOfRangeException e)
{
// assert
StringAssert.Contains(e.Message, BankAccountNT.DebitAmountExceedsBalanceMessage);
}
}