msgmap: replace id_batch with ids_after

id_batch had a an overly complicated interface, replace it
with id_batch which is simpler and takes advantage of
selectcol_arrayref in DBI.  This allows simplification of
callers and the diffstat agrees with me.

2 files changed, 8 insertions, 0 deletions

diff --git a/t/nntpd.t b/t/nntpd.t
index de781d74..c6e34ed3 100644
--- a/t/nntpd.t
+++ b/t/nntpd.t
@@ -123,6 +123,7 @@ EOF
         my $list = $n->list;
         is_deeply($list, { $group => [ qw(1 1 n) ] }, 'LIST works');
         is_deeply([$n->group($group)], [ qw(0 1 1), $group ], 'GROUP works');
+        is_deeply($n->listgroup($group), [1], 'listgroup OK');
 
         %opts = (
                 PeerAddr => $host_port,
diff --git a/t/v2writable.t b/t/v2writable.t
index 1e8e4042..62947351 100644
--- a/t/v2writable.t
+++ b/t/v2writable.t
@@ -189,6 +189,13 @@ EOF
                 is($nn{$mid}++, 0, "MID is unique in NEWNEWS");
         }
         is_deeply([sort keys %nn], [sort keys %uniq]);
+
+        my %lg;
+        foreach my $num (@{$n->listgroup($group)}) {
+                is($lg{$num}++, 0, "num is unique in LISTGROUP");
+        }
+        is_deeply([sort keys %lg], [sort keys %$x],
+                'XOVER and LISTGROUPS return the same article numbers');
 };
 {
         local $ENV{NPROC} = 2;