t/nntpd: fix lsof check w/ TEST_RUN_MODE=0

The `xqx' sub requires an absolute path for optional
commands.

Fixes: 6e07def560b211d9 ("testcommon: spawn-aware system() and qx[] workalikes")

diff --git a/t/nntpd.t b/t/nntpd.t
index 66aa48f1e67946def9ef5005222f191f00f6b91e..b2ef575d310866cd74f4fdd4c51d9621b4e3aa1c 100644 (file)
--- a/t/nntpd.t
+++ b/t/nntpd.t
@@ -4,6 +4,7 @@ use strict;
 use warnings;
 use Test::More;
 use PublicInbox::TestCommon;
+use PublicInbox::Spawn qw(which);
 require_mods(qw(DBD::SQLite));
 require PublicInbox::SearchIdx;
 require PublicInbox::Msgmap;
@@ -304,8 +305,9 @@ Date: Fri, 02 Oct 1993 00:00:00 +0000
                if ($INC{'Search/Xapian.pm'} && ($ENV{TEST_RUN_MODE}//2)) {
                        skip 'Search/Xapian.pm pre-loaded (by t/run.perl?)', 1;
                }
+               my $lsof = which('lsof') or skip 'lsof missing', 1;
                my $rdr = { 2 => \(my $null) };
-               my @of = xqx(['lsof', '-p', $td->{pid}], undef, $rdr);
+               my @of = xqx([$lsof, '-p', $td->{pid}], undef, $rdr);
                skip('lsof broken', 1) if (!scalar(@of) || $?);
                my @xap = grep m!Search/Xapian!, @of;
                is_deeply(\@xap, [], 'Xapian not loaded in nntpd');