/**
* Persists the provided account.
*
* @param BankAccount $account
* @return int The account ID
*/
public function persist(BankAccount $account)
{
if ($account->getId()) {
$stmt = $this->database->prepare('update account set balance = ? where id = ?');
$stmt->execute([$account->getBalance(), $account->getId()]);
return $account->getId();
} else {
$stmt = $this->database->prepare('insert into account (balance) values (?)');
$stmt->execute([$account->getBalance()]);
return $this->database->lastInsertId();
}
}
public function testWithdrawingMoneyDecreasesTheBalanceByTheAmountWithdrawn()
{
$account = new BankAccount(100);
$account->withdraw(100);
$this->assertSame(0, $account->getBalance());
}
