update

t/avoid_crossing_perimeters.t

@@ -0,0 +1,22 @@
+use Test::More tests => 1;
+use strict;
+use warnings;
+
+BEGIN {
+    use FindBin;
+    use lib "$FindBin::Bin/../lib";
+    use local::lib "$FindBin::Bin/../local-lib";    
+}
+
+use List::Util qw(first sum);
+use Slic3r;
+use Slic3r::Test;
+
+{
+    my $config = Slic3r::Config::new_from_defaults;
+    $config->set('avoid_crossing_perimeters', 2);
+    my $print = Slic3r::Test::init_print('20mm_cube', config => $config, duplicate => 2);
+    ok my $gcode = Slic3r::Test::gcode($print), "no crash with avoid_crossing_perimeters and multiple objects";
+}
+
+__END__