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use warnings;
use strict;
use Test::Simple tests => 3;
package Foo;
use overload
nomethod => sub { die "unimplemented\n" };
sub new { bless {}, shift };
package main;
my $foo = Foo->new;
eval {my $val = $foo + 1};
ok( $@ =~ /unimplemented/, "'+' not implemented; 'nomethod' special key invoked" );
eval {$foo += 1};
ok( $@ =~ /unimplemented/, "'+=' not implemented; 'nomethod' special key invoked" );
eval {my $val = 0; $val += $foo};
ok( $@ =~ /unimplemented/, "'+=' not implemented; 'nomethod' special key invoked" );
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