ArtStyleType isn't ArtStyleType?

[Enginseer]

function ArtEvents(iPlayer)
    local pPlayer = Players[iPlayer]
    if pPlayer:IsMinorCiv() or pPlayer:IsBarbarian() then return end
    local ArtStyle = GameInfo.Civilizations[pPlayer:GetCivilizationType()].ArtStyleType 
    if ArtStyle == ARTSTYLE_EUROPEAN then
        print("this civ is european")
    elseif ArtStyle == ARTSTYLE_MIDDLE_EAST then
        print("this civ is middle east")
    elseif ArtStyle == ARTSTYLE_SOUTH_AMERICA then
        print("this civ is south american")
    elseif ArtStyle == ARTSTYLE_ASIAN then
        print("This civ is asian")
    elseif ArtStyle == ARTSTYLE_GRECO_ROMAN then
        print("the holy roman empire")
    end
end
GameEvents.PlayerDoTurn.Add(ArtEvents)

I'm confused on why this won't work because on firetuner.

It should supposedly work based on the print statement, but it doesn't seem to equal to the print statement itself. Anyone know why?

 

[whoward69]

ARTSTYLE_EUROPEAN is an uninitialized variable, so has the value nil
"ARTSTYLE_EUROPEAN" is a string