testkey.lua

local function inspectBlock()
 local success,blk = turtle.inspect()
 if(success) then
     return blk.name
 else
     return "none/air"
 end
end

while true do
    press, key = os.pullEvent()

    if(press == "key_up") then

    if(press == "key_up" and key == keys.q) then
       break

    elseif(key == keys.space) then
        print("Space")
        turtle.dig()
        print(inspectBlock())

    elseif(key == keys.a) then
        print("Left")
        turtle.turnLeft()
        print(inspectBlock())

    elseif(key == keys.d) then
        print("Right")
        turtle.turnRight()
        print(inspectBlock())

    elseif(key == keys.s) then
        print("Back")
        turtle.back()
        print(inspectBlock())

    elseif(key == keys.w) then
        print("Forward")
        turtle.forward()
        print(inspectBlock())

    elseif(key == keys.e) then
        print("Up")
        turtle.up()
        print(inspectBlock())

    elseif(key == keys.x) then
        print("Down")
        turtle.down()
        print(inspectBlock())

    elseif(key == keys.z) then
        print(inspectBlock())

    elseif(key == keys.f) then
        print("Fuel: "..turtle.getFuelLevel())

    else
        if(press ~= nil and key ~= nil) then
            print("press: "..press.."key: "..key)
        end
    end
    end
end