public void Null_Value_Test()
{
var value = ValueFactory.CreateNullValue();
Assert.True(value.DataType == DataType.GenericValue);
Assert.True(value.AsString() == "");
Assert.Throws <RuntimeException>(() => value.AsNumber());
Assert.Throws <RuntimeException>(() => value.AsBoolean());
Assert.Throws <RuntimeException>(() => value.AsObject());
Assert.Throws <RuntimeException>(() => value.AsDate());
}
public bool ValueIsFilled(IValue inValue)
{
var value = inValue?.GetRawValue();
if (value == null)
{
return(false);
}
if (value.DataType == DataType.Undefined)
{
return(false);
}
else if (value.DataType == DataType.Boolean)
{
return(true);
}
else if (value.DataType == DataType.String)
{
return(!String.IsNullOrWhiteSpace(value.AsString()));
}
else if (value.DataType == DataType.Number)
{
return(value.AsNumber() != 0);
}
else if (value.DataType == DataType.Date)
{
var emptyDate = new DateTime(1, 1, 1, 0, 0, 0);
return(value.AsDate() != emptyDate);
}
else if (value is COMWrapperContext)
{
return(true);
}
else if (value is ICollectionContext)
{
var col = value as ICollectionContext;
return(col.Count() != 0);
}
else if (ValueFactory.CreateNullValue().Equals(value))
{
return(false);
}
else
{
return(true);
}
}