Most simple ringbuffer/queue in Lua (5.3.4)

ringbuffer.lua

MAX_SIZE = 4

Ring = {}

function insert(ring, a)
    table.insert(ring, a)
    if #ring > MAX_SIZE then
        table.remove(ring, 1)
    end
end


------------------------TEST--------------------------------------------

insert(Ring, 1)
insert(Ring, 2)
insert(Ring, 3)
insert(Ring, 4)
insert(Ring, 5)
for k,v in pairs(Ring) do
    print(v)
end

insert(Ring, 6)
insert(Ring, 7)
insert(Ring, 8)

print()

for k,v in pairs(Ring) do
    print(v)
end