update

t/config.t

@@ -0,0 +1,20 @@
+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 Slic3r;
+use Slic3r::Test;
+
+{
+    my $config = Slic3r::Config::new_from_defaults;
+    $config->set('perimeter_extrusion_width', '250%');
+    ok $config->validate, 'percent extrusion width is validated';
+}
+
+__END__