+# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use strict;
+use warnings;
+use Test::More;
+use File::Temp qw/tempdir/;
+use PublicInbox::MIME;
+use PublicInbox::Config;
+my @mods = qw(Filesys::Notify::Simple DBD::SQLite Search::Xapian);
+foreach my $mod (@mods) {
+ eval "require $mod";
+ plan skip_all => "$mod missing for watch_filter_rubylang_v2.t" if $@;
+}
+
+use_ok 'PublicInbox::V2Writable';
+use_ok 'PublicInbox::WatchMaildir';
+use_ok 'PublicInbox::Emergency';
+my $tmpdir = tempdir('watch-XXXXXX', TMPDIR => 1, CLEANUP => 1);
+local $ENV{PI_CONFIG} = "$tmpdir/pi_config";
+
+for my $v (qw(V1 V2)) {
+ my @warn;
+ $SIG{__WARN__} = sub { push @warn, @_ };
+ my $cfgpfx = "publicinbox.$v";
+ my $mainrepo = "$tmpdir/$v";
+ my $maildir = "$tmpdir/md-$v";
+ my $spamdir = "$tmpdir/spam-$v";
+ my $addr = "test-$v\@example.com";
+ my @cmd = ('blib/script/public-inbox-init', "-$v", $v, $mainrepo,
+ "http://example.com/$v", $addr);
+ is(system(@cmd), 0, 'public-inbox init OK');
+ if ($v eq 'V1') {
+ is(system('blib/script/public-inbox-index', $mainrepo), 0);
+ }
+ PublicInbox::Emergency->new($spamdir);
+
+ for my $i (1..15) {
+ my $msg = <<EOF;
+From: user\@example.com
+To: $addr
+Subject: blah $i
+X-Mail-Count: $i
+Message-Id: <a.$i\@b.com>
+Date: Sat, 05 Jan 2019 04:19:17 +0000
+
+something
+EOF
+ PublicInbox::Emergency->new($maildir)->prepare(\$msg);
+ }
+
+ my $spam = <<EOF;
+From: spammer\@example.com
+To: $addr
+Subject: spam
+X-Mail-Count: 99
+Message-Id: <a.99\@b.com>
+Date: Sat, 05 Jan 2019 04:19:17 +0000
+
+spam
+EOF
+ PublicInbox::Emergency->new($maildir)->prepare(\"$spam");
+
+ my %orig = (
+ "$cfgpfx.address" => $addr,
+ "$cfgpfx.mainrepo" => $mainrepo,
+ "$cfgpfx.watch" => "maildir:$maildir",
+ "$cfgpfx.filter" => 'PublicInbox::Filter::RubyLang',
+ "$cfgpfx.altid" => 'serial:alerts:file=msgmap.sqlite3',
+ "publicinboxwatch.watchspam" => "maildir:$spamdir",
+ );
+ my $config = PublicInbox::Config->new({%orig});
+ my $ibx = $config->lookup_name($v);
+ ok($ibx, 'found inbox by name');
+
+ my $w = PublicInbox::WatchMaildir->new($config);
+ for my $i (1..2) {
+ $w->scan('full');
+ }
+
+ # make sure all serials are searchable:
+ my ($tot, $msgs);
+ for my $i (1..15) {
+ ($tot, $msgs) = $ibx->search->query("alerts:$i");
+ is($tot, 1, "got one result for alerts:$i");
+ is($msgs->[0]->{mid}, "a.$i\@b.com", "got expected MID for $i");
+ }
+ ($tot, undef) = $ibx->search->query('b:spam');
+ is($tot, 1, 'got spam message');
+
+ my $nr = unlink <$maildir/new/*>;
+ is(16, $nr);
+ {
+ PublicInbox::Emergency->new($spamdir)->prepare(\$spam);
+ my @new = glob("$spamdir/new/*");
+ my @p = split(m!/+!, $new[0]);
+ ok(link($new[0], "$spamdir/cur/".$p[-1].":2,S"));
+ is(unlink($new[0]), 1);
+ }
+ $w->scan('full');
+
+ $config = PublicInbox::Config->new({%orig});
+ $ibx = $config->lookup_name($v);
+ ($tot, undef) = $ibx->search->reopen->query('b:spam');
+ is($tot, 0, 'spam removed');
+
+ is_deeply([], \@warn, 'no warnings');
+}
+
+done_testing();