--- /dev/null
+package TestAppBadlyImmutable;
+use Catalyst qw/+TestPluginWithConstructor/;
+use Test::More;
+
+__PACKAGE__->setup;
+
+ok !__PACKAGE__->meta->is_immutable, 'Am not already immutable';
+__PACKAGE__->meta->make_immutable( inline_constructor => 0 );
+ok __PACKAGE__->meta->is_immutable, 'Am now immutable';
+
+1;
+