+{ # test setting NNTP headers in HEAD and ARTICLE requests
+ require Email::MIME;
+ my $u = 'https://example.com/a/';
+ my $ng = PublicInbox::NewsGroup->new('test', 'test.git',
+ 'a@example.com', '//example.com/a');
+ is($ng->{url}, $u, 'URL expanded');
+ my $mid = 'a@b';
+ my $mime = Email::MIME->new("Message-ID: <$mid>\r\n\r\n");
+ PublicInbox::NNTP::set_nntp_headers($mime->header_obj, $ng, 1, $mid);
+ is_deeply([ $mime->header('Message-ID') ], [ "<$mid>" ],
+ 'Message-ID unchanged');
+ is_deeply([ $mime->header('Archived-At') ], [ "<${u}a%40b/>" ],
+ 'Archived-At: set');
+ is_deeply([ $mime->header('List-Archive') ], [ "<$u>" ],
+ 'List-Archive: set');
+ is_deeply([ $mime->header('List-Post') ], [ '<mailto:a@example.com>' ],
+ 'List-Post: set');
+ is_deeply([ $mime->header('Newsgroups') ], [ 'test' ],
+ 'Newsgroups: set');
+ is_deeply([ $mime->header('Xref') ], [ 'example.com test:1' ],
+ 'Xref: set');
+
+ $ng->{url} = 'http://mirror.example.com/m/';
+ PublicInbox::NNTP::set_nntp_headers($mime->header_obj, $ng, 2, $mid);
+ is_deeply([ $mime->header('Message-ID') ], [ "<$mid>" ],
+ 'Message-ID unchanged');
+ is_deeply([ $mime->header('Archived-At') ],
+ [ "<${u}a%40b/>", '<http://mirror.example.com/m/a%40b/>' ],
+ 'Archived-At: appended');
+ is_deeply([ $mime->header('Xref') ], [ 'example.com test:2' ],
+ 'Old Xref: clobbered');
+}
+