// Prompts the user from stdin to record a deposit on their account
private static void Deposit(Services.BankLedger ledger)
{
Console.WriteLine("Enter amount to deposit:");
Console.WriteLine($"Type {EXIT_KEYWORD} to return to menu.");
Console.Write("$");
var amount = 0.0;
var input = Console.ReadLine();
// verifying user typed valid input (can be parsed as double and > 0, or exit keyword)
while (!input.Equals(EXIT_KEYWORD, StringComparison.OrdinalIgnoreCase) && !(double.TryParse(input, out amount) && amount >= 0))
{
Console.WriteLine();
Console.WriteLine("Invalid amount entered.");
Console.WriteLine($"Enter an amount to deposit, or type {EXIT_KEYWORD} to return to menu:");
Console.Write("$");
input = Console.ReadLine();
}
// don't deposit if they typed exit keyword
if (!input.Equals(EXIT_KEYWORD, StringComparison.OrdinalIgnoreCase))
{
ledger.Deposit(amount);
Console.WriteLine();
Console.WriteLine($"Deposit successful. New account balance: {ledger.GetCurrentBalance()}");
}
Console.WriteLine();
}
public void TestDeposit_LoggedOut()
{
Assert.ThrowsException <NullReferenceException>(() => ledger.Deposit(0));
}