is("\n".$backward, "\n".$forward, 'forward and backward matches');
}
-done_testing();
+SKIP: {
+ require_mods 'Devel::Cycle', 1;
+ Devel::Cycle->import('find_cycle');
+ my @dup = (
+ { mid => 5, references => '<6>' },
+ { mid => 5, references => '<6> <1>' },
+ );
+ open my $fh, '+>', \(my $out = '') or xbail "open: $!";
+ (undef, $smsgs) = $make_objs->(@dup);
+ eval 'package EmptyInbox; sub smsg_by_mid { undef }';
+ my $ctx = { ibx => bless {}, 'EmptyInbox' };
+ my $rootset = PublicInbox::SearchThread::thread($smsgs, sub {
+ @{$_[0]} = sort { $a->{mid} cmp $b->{mid} } @{$_[0]} }, $ctx);
+ my $oldout = select $fh;
+ find_cycle($rootset);
+ select $oldout;
+ is($out, '', 'nothing from find_cycle');
+} # Devel::Cycle check
+
+done_testing;
sub thread_to_s {
my ($msgs) = @_;
my $rootset = PublicInbox::SearchThread::thread($msgs, sub {
- [ sort { $a->{mid} cmp $b->{mid} } @{$_[0]} ] });
+ @{$_[0]} = sort { $a->{mid} cmp $b->{mid} } @{$_[0]} });
my $st = '';
my @q = map { (0, $_) } @$rootset;
while (@q) {