[PATCH 1/9] t/multi-mid.t: extra test for -convert highwater mark

[Eric Wong <e@yhbt.net>]

This is derived from a real-world test case where I encounterd
multiple Message-IDs in a v1 inbox causing regen problems.

Fixes: eea47b676127bcdb ("convert: preserve highwater mark from v1 msgmap")
---
 MANIFEST      |  1 +
 t/multi-mid.t | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 t/multi-mid.t

diff --git a/MANIFEST b/MANIFEST
index 3736c777..5eb5d53a 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -250,6 +250,7 @@ t/mime.t
 t/msg_iter.t
 t/msgmap.t
 t/msgtime.t
+t/multi-mid.t
 t/nntp.t
 t/nntpd-tls.t
 t/nntpd.t
diff --git a/t/multi-mid.t b/t/multi-mid.t
new file mode 100644
index 00000000..0d283a0d
--- /dev/null
+++ b/t/multi-mid.t
@@ -0,0 +1,61 @@
+# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use Test::More;
+use PublicInbox::MIME;
+use PublicInbox::TestCommon;
+use PublicInbox::InboxWritable;
+use PublicInbox::SearchIdx;
+require_git(2.6);
+require_mods(qw(DBD::SQLite));
+
+my $addr = 'test@example.com';
+my $bad = PublicInbox::MIME->new(<<EOF);
+Message-ID: <a\@example.com>
+Message-ID: <b\@example.com>
+From: a\@example.com
+To: $addr
+Date: Fri, 02 Oct 1993 00:00:00 +0000
+Subject: bad
+
+EOF
+
+my $good = PublicInbox::MIME->new(<<EOF);
+Message-ID: <b\@example.com>
+Date: Fri, 02 Oct 1993 00:00:00 +0000
+From: b\@example.com
+To: $addr
+Subject: good
+
+EOF
+
+for my $order ([$bad, $good], [$good, $bad]) {
+	my $before;
+	my ($tmpdir, $for_destroy) = tmpdir();
+	my $ibx = PublicInbox::InboxWritable->new({
+		inboxdir => "$tmpdir/v1",
+		name => 'test-v1',
+		indexlevel => 'basic',
+		-primary_address => $addr,
+	}, my $creat_opt = {});
+	if ('setup v1 inbox') {
+		my $im = $ibx->importer(0);
+		ok($im->add($_), 'added '.$_->header('Subject')) for @$order;
+		$im->done;
+		my $s = PublicInbox::SearchIdx->new($ibx, 1);
+		$s->index_sync;
+		$before = [ $ibx->mm->minmax ];
+		$ibx->cleanup;
+	}
+	my $rdr = { 1 => \(my $out = ''), 2 => \(my $err = '') };
+	my $cmd = [ '-convert', $ibx->{inboxdir}, "$tmpdir/v2" ];
+	ok(run_script($cmd, undef, $rdr),
+		'convert to v2');
+	$err =~ s!\AW: $tmpdir/v1 not configured[^\n]+\n!!s;
+	is($err, '', 'no errors or warnings from -convert');
+	$ibx->{version} = 2;
+	$ibx->{inboxdir} = "$tmpdir/v2";
+	is_deeply([$ibx->mm->minmax], $before,
+		'min, max article numbers unchanged');
+}
+
+done_testing();