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use Image::Sane ':all';
use Try::Tiny;
use Test::More;
BEGIN { use_ok('Image::Sane') }
#########################
plan skip_all => 'libsane 1.0.19 or better required'
unless Image::Sane->get_version_scalar > 1.000018;
my $test = Image::Sane::Device->open('test');
$options = $test->get_option_descriptor(10);
is( $options->{name}, 'test-picture', 'test-picture' );
my $info = $test->set_option( 10, 'Color pattern' );
my $n = $test->get_option(0);
my $read_length_zero;
if ( $n > 52 ) {
$options = $test->get_option_descriptor(52);
if ( $options->{name} eq 'read-length-zero' ) {
$read_length_zero = 1;
$info = $test->set_option( 52, SANE_TRUE );
}
}
$options = $test->get_option_descriptor(2);
for my $mode ( @{ $options->{constraint} } ) {
my $info = $test->set_option( 2, $mode );
$test->start;
my $param = $test->get_parameters;
if ( $param->{lines} >= 0 ) {
my $filename = "$mode.pnm";
open my $fh, '>', $filename;
binmode $fh;
$test->write_pnm_header( $fh, $param );
my ( $data, $len, $status );
do {
$status = SANE_STATUS_GOOD;
try {
( $data, $len ) = $test->read( $param->{bytes_per_line} );
}
catch {
$status = $_->status;
( $data, $len ) = ( undef, 0 );
};
is( length($data), 0, "length-zero $mode" )
if ( $read_length_zero
and $len == 0
and $status == SANE_STATUS_GOOD );
print $fh substr( $data, 0, $len ) if ($data);
} while ( $status == SANE_STATUS_GOOD );
is( $status, SANE_STATUS_EOF, "EOF $mode" );
is( $data, undef, "EOF data $mode" );
is( $len, 0, "EOF len $mode" );
unlink $filename;
$test->cancel;
close $fh;
}
}
done_testing();
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