public void ShouldReturnSameInstanceOfIntParserWhenCalledTwice()
{
var parsers = new ArgumentParsers();
var parser1 = parsers.GetParser(DataType.Integer);
var parser2 = parsers.GetParser(DataType.Integer);
Assert.AreEqual(parser1, parser2);
}
/// <summary>
/// Returns the value of the argument att the position of the 0-based
/// <paramref name="index"/> as an integer.
/// </summary>
/// <param name="arguments">The list of function arguments where our input to parse is.</param>
/// <param name="index">The index of the arguments to try to parse to an integer.</param>
/// <returns>Value of the argument as an integer.</returns>
/// <exception cref="ExcelErrorValueException"></exception>
protected int ArgToInt(IEnumerable <FunctionArgument> arguments, int index)
{
var val = arguments.ElementAt(index).ValueFirst;
if (val == null)
{
return(0);
}
return((int)_argumentParsers.GetParser(DataType.Integer).Parse(val));
}
/// <summary>
/// If the argument is a boolean value its value will be returned.
/// If the argument is an integer value, true will be returned if its
/// value is not 0, otherwise false.
/// </summary>
/// <param name="arguments"></param>
/// <param name="index"></param>
/// <returns></returns>
protected bool ArgToBool(IEnumerable <FunctionArgument> arguments, int index)
{
var obj = arguments.ElementAt(index).Value ?? string.Empty;
return((bool)_argumentParsers.GetParser(DataType.Boolean).Parse(obj));
}
