1 files changed, 27 insertions, 0 deletions
diff --git a/t/filter_subjecttag.t b/t/filter_subjecttag.t
new file mode 100644
index 00000000..54a219e7
--- /dev/null
+++ b/t/filter_subjecttag.t
@@ -0,0 +1,27 @@
+# Copyright (C) 2017 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 Email::MIME;
+use_ok 'PublicInbox::Filter::SubjectTag';
+
+my $f = eval { PublicInbox::Filter::SubjectTag->new };
+like($@, qr/tag not defined/, 'error without args');
+$f = PublicInbox::Filter::SubjectTag->new('-tag', '[foo]');
+is(ref $f, 'PublicInbox::Filter::SubjectTag', 'new object created');
+
+my $mime = Email::MIME->new(<<EOF);
+To: you <you\@example.com>
+Subject: =?UTF-8?B?UmU6IFtmb29dIEVsw4PCqWFub3I=?=
+
+EOF
+
+$mime = $f->delivery($mime);
+is($mime->header('Subject'), "Re: El\xc3\xa9anor", 'filtered with Re:');
+
+$mime->header_str_set('Subject', '[FOO] bar');
+$mime = $f->delivery($mime);
+is($mime->header('Subject'), 'bar', 'filtered non-reply');
+
+done_testing();