is $bar->foobot, 'beep', 'asserter checks for existence not truth, on false value';
is $bar->foobar, 'bar', 'asserter checks for existence not truth, on undef ';
+
+{
+ local $@;
+ ok !eval q{
+ package Baz;
+ use Moo;
+ has foo => ( is => 'ro', handles => 'Robot' );
+ sub smash { 1 };
+ 1;
+ }, 'handles will not overwrite locally defined method';
+ like $@, qr{You cannot overwrite a locally defined method \(smash\) with a delegation};
+}
+
done_testing;