use strict;
use warnings;

use lib 't/';

use RPiTest;
use Test::More;
use RPi::WiringPi;

if (! $ENV{RPI_OLED}){
    plan skip_all => "RPI_OLED environment variable not set\n";
}

if (! $ENV{PI_BOARD}){
    $ENV{NO_BOARD} = 1;
    plan skip_all => "Not on a Pi board\n";
}

rpi_running_test(__FILE__);

my $s = RPi::WiringPi->oled('128x64', 0x3C, 0);

$s->text_size(3);
$s->string("hello", 1);

is $s->invert_display(1), 1, "invert_display() return ok";
$s->clear;

$s->string("hello", 1);

$s->invert_display(0);
$s->clear;

done_testing();

