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<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
class BankAccountException extends RuntimeException
{
}
/**
* A bank account.
*
*/
class BankAccount
{
/**
* The bank account's balance.
*
* @var float
*/
protected $balance = 0;
/**
* Returns the bank account's balance.
*
* @return float
*/
public function getBalance()
{
return $this->balance;
}
/**
* Sets the bank account's balance.
*
* @param float $balance
*
* @throws BankAccountException
*/
protected function setBalance($balance)
{
if ($balance >= 0) {
$this->balance = $balance;
} else {
throw new BankAccountException;
}
}
/**
* Deposits an amount of money to the bank account.
*
* @param float $balance
*
* @throws BankAccountException
*/
public function depositMoney($balance)
{
$this->setBalance($this->getBalance() + $balance);
return $this->getBalance();
}
/**
* Withdraws an amount of money from the bank account.
*
* @param float $balance
*
* @throws BankAccountException
*/
public function withdrawMoney($balance)
{
$this->setBalance($this->getBalance() - $balance);
return $this->getBalance();
}
}
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