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# Copyright (C) 2016-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
use strict; use v5.10.1; use PublicInbox::TestCommon;
use_ok('PublicInbox::SearchThread');
my $mt = eval {
require Mail::Thread;
no warnings 'once';
$Mail::Thread::nosubject = 1;
$Mail::Thread::noprune = 1;
require Email::Simple; # required by Mail::Thread (via Email::Abstract)
};
my $make_objs = sub {
my @simples;
my $n = 0;
my @msgs = map {
my $msg = $_;
$msg->{ds} ||= ++$n;
$msg->{references} =~ s/\s+/ /sg if $msg->{references};
$msg->{blob} = '0'x40; # any dummy value will do, here
if ($mt) {
my $simple = Email::Simple->create(header => [
'Message-ID' => "<$msg->{mid}>",
'References' => $msg->{references},
]);
push @simples, $simple;
}
bless $msg, 'PublicInbox::Smsg'
} @_;
(\@simples, \@msgs);
};
my ($simples, $smsgs) = $make_objs->(
# data from t/testbox-6 in Mail::Thread 2.55:
{ mid => '20021124145312.GA1759@nlin.net' },
{ mid => 'slrnau448m.7l4.markj+0111@cloaked.freeserve.co.uk',
references => '<20021124145312.GA1759@nlin.net>',
},
{ mid => '15842.10677.577458.656565@jupiter.akutech-local.de',
references => '<20021124145312.GA1759@nlin.net>
<slrnau448m.7l4.markj+0111@cloaked.freeserve.co.uk>',
},
{ mid => '20021125171807.GK8236@somanetworks.com',
references => '<20021124145312.GA1759@nlin.net>
<slrnau448m.7l4.markj+0111@cloaked.freeserve.co.uk>
<15842.10677.577458.656565@jupiter.akutech-local.de>',
},
{ mid => '15843.12163.554914.469248@jupiter.akutech-local.de',
references => '<20021124145312.GA1759@nlin.net>
<slrnau448m.7l4.markj+0111@cloaked.freeserve.co.uk>
<15842.10677.577458.656565@jupiter.akutech-local.de>
<E18GPHf-0000zp-00@cloaked.freeserve.co.uk>',
},
{ mid => 'E18GPHf-0000zp-00@cloaked.freeserve.co.uk',
references => '<20021124145312.GA1759@nlin.net>
<slrnau448m.7l4.markj+0111@cloaked.freeserve.co.uk>
<15842.10677.577458.656565@jupiter.akutech-local.de>'
}
);
my $st = thread_to_s($smsgs);
SKIP: {
skip 'Mail::Thread missing', 1 unless $mt;
check_mt($st, $simples, 'Mail::Thread output matches');
}
my @backwards = (
{ mid => 1, references => '<2> <3> <4>' },
{ mid => 4, references => '<2> <3>' },
{ mid => 5, references => '<6> <7> <8> <3> <2>' },
{ mid => 9, references => '<6> <3>' },
{ mid => 10, references => '<8> <7> <6>' },
{ mid => 2, references => '<6> <7> <8> <3>' },
{ mid => 3, references => '<6> <7> <8>' },
{ mid => 6, references => '<8> <7>' },
{ mid => 7, references => '<8>' },
{ mid => 8, references => '' }
);
($simples, $smsgs) = $make_objs->(@backwards);
my $backward = thread_to_s($smsgs);
SKIP: {
skip 'Mail::Thread missing', 1 unless $mt;
check_mt($backward, $simples, 'matches Mail::Thread backwards');
}
($simples, $smsgs) = $make_objs->(reverse @backwards);
my $forward = thread_to_s($smsgs);
unless ('Mail::Thread sorts by Date') {
SKIP: {
skip 'Mail::Thread missing', 1 unless $mt;
check_mt($forward, $simples, 'matches Mail::Thread forwards');
}
}
if ('sorting by Date') {
is("\n".$backward, "\n".$forward, 'forward and backward matches');
}
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 {
@{$_[0]} = sort { $a->{mid} cmp $b->{mid} } @{$_[0]} });
my $st = '';
my @q = map { (0, $_) } @$rootset;
while (@q) {
my $level = shift @q;
my $node = shift @q or next;
$st .= (" "x$level). "$node->{mid}\n";
my $cl = $level + 1;
unshift @q, map { ($cl, $_) } @{$node->{children}};
}
$st;
}
sub check_mt {
my ($st, $simples, $msg) = @_;
my $mt = Mail::Thread->new(@$simples);
$mt->thread;
$mt->order(sub { sort { $a->messageid cmp $b->messageid } @_ });
my $check = '';
my @q = map { (0, $_) } $mt->rootset;
while (@q) {
my $level = shift @q;
my $node = shift @q or next;
$check .= (" "x$level) . $node->messageid . "\n";
unshift @q, $level + 1, $node->child, $level, $node->next;
}
is("\n".$check, "\n".$st, $msg);
}
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