private static async Task <bool> Calculate(AnnualFeeCalculator calculator, string input)
{
var isValid = ProcessUserInput(input, out bool toExit, out int consumption);
if (!toExit && isValid)
{
try
{
var fees = await calculator.CalculateAnnualFee(consumption);
PrintResult(fees, calculator.CurrencySymbol);
}
catch (ArgumentOutOfRangeException ex)
{
Console.WriteLine("Problem happened: {0}", ex.Message);
}
}
return(toExit);
}
public void ShouldThrowExceptionForIncorrectParameter()
{
Assert.Throws <ArgumentOutOfRangeException>(async() => await calculator.CalculateAnnualFee(-1));
}