my @ret = eval { DB->backtrace() };
like( $ret[0], qr/file.+\Q$0\E/, 'DB::backtrace() should report current file');
like( $ret[0], qr/line $line/, '... should report calling line number' );
- like( $ret[0], qr/eval {...}/, '... should catch eval BLOCK' );
+ like( $ret[0], qr/eval\Q {...}/, '... should catch eval BLOCK' );
@ret = eval "one(2)";
is( scalar @ret, 1, '... should report from provided stack frame number' );