static void Main(string[] args)
{
IntToBool intToBoolDelagate = ConvertHelper.ToBool;
IntToNullableBool intToNullableBoolDelegate = ConvertHelper.ToNullableBool;
Console.WriteLine("------------Before conversion------------");
Console.WriteLine("---------Positive Int to Bool------------");
Console.WriteLine(intToBoolDelagate(1));
Console.WriteLine("-----Positive Int to Nullable Bool-------");
Console.WriteLine(intToNullableBoolDelegate(1));
Console.WriteLine("------------After conversion-------------");
Console.WriteLine("-----------Positive Int to Bool----------");
Console.WriteLine(intToBoolDelagate.ToNullableBool()(1));
Console.WriteLine("------Positive Int to Nullable Bool------");
Console.WriteLine(intToNullableBoolDelegate.ToBool()(1));
Console.WriteLine("------------Before conversion------------");
Console.WriteLine("---------------Zero to Bool--------------");
Console.WriteLine(intToBoolDelagate(0));
Console.WriteLine("----------Zero to Nullable Bool----------");
Console.WriteLine(intToNullableBoolDelegate(0));
Console.WriteLine("------------After conversion-------------");
Console.WriteLine("---------------Zero to Bool--------------");
Console.WriteLine(intToBoolDelagate.ToNullableBool()(0));
Console.WriteLine("----------Zero to Nullable Bool----------");
Console.WriteLine(intToNullableBoolDelegate.ToBool()(0));
Console.WriteLine("------------Before conversion------------");
Console.WriteLine("----------Negative Int to Bool-----------");
Console.WriteLine(intToBoolDelagate(-1));
Console.WriteLine("-------Negative Int to Nullable Bool-----");
Console.WriteLine(intToNullableBoolDelegate(-1));
Console.WriteLine("------------After conversion-------------");
Console.WriteLine("---------Negative Int to Bool------------");
Console.WriteLine(intToBoolDelagate.ToNullableBool()(-1));
Console.WriteLine("------Negative Int to Nullable Bool------");
Console.WriteLine(intToNullableBoolDelegate.ToBool()(-1));
Console.ReadKey();
}
public void ZeroIntToNullableBool()
{
IntToBool dFrom = ConvertHelper.ToBool;
Assert.AreEqual(false, dFrom.ToNullableBool()(0));
}
public void PositiveIntToNullableBool()
{
IntToBool dFrom = ConvertHelper.ToBool;
Assert.AreEqual(true, dFrom.ToNullableBool()(1));
}
public void NegativeIntToNullableBool()
{
IntToBool dFrom = ConvertHelper.ToBool;
Assert.AreEqual(null, dFrom.ToNullableBool()(-1));
}
/// <summary>
/// Convert IntToBool delegate to IntToNullableBool delegate.
/// </summary>
/// <param name="fromFunction">The deleaget that should be converted to IntToNullableBool delegate.</param>
/// <returns>The result of conversion : IntToNullableBool deleate.</returns>
public static IntToNullableBool ToNullableBool(this IntToBool fromFunction)
{
return(fromFunction != null ? (fromValue => (fromValue < 0) ? (bool?)null : fromFunction(fromValue)) : (IntToNullableBool)null);
}
