public void ScanNonExistingProduct_WithEmptyPricesSet_ExceptionThrown()
{
var terminal = new PointOfSaleTerminal(new PointOfSaleProduct[0]);
Assert.Throws(typeof(ArgumentException), () => terminal.Scan("A"));
}
private void ScanStringAsChars(PointOfSaleTerminal terminal, string productCodes)
{
foreach(char ch in productCodes)
{
terminal.Scan(ch.ToString());
}
}