use Test::More;
use Test::Deep;

my @input = (5, 8, 12, 9, 78, 1, 5);
my @expected = (1, 5, 5, 8, 9, 12, 78);

my $i_file = "input.txt";
my $o_file = "output.txt";
my $bin = '/bin/c_program';

write_sample_file(\@input, $i_file);

# run the C program
system "$bin < $i_file > $o_file";
my @processed = get_data($o_file);
cmp_deeply (\@processed, \@expected, 'results are sorted');