+
+ my $ref = $gcf->qx(qw(cat-file blob), $buf);
+ is($all, $ref, 'qx read giant single string');
+
+ my @ref = $gcf->qx(qw(cat-file blob), $buf);
+ is($all, join('', @ref), 'qx returned array when wanted');
+ my $nl = scalar @ref;
+ ok($nl > 1, "qx returned array length of $nl");
+
+ $gcf->qx(qw(repack -adbq));
+ ok($gcf->packed_bytes > 0, 'packed size is positive');
+}
+
+if ('alternates reloaded') {
+ my $alt = tempdir('pi-git-XXXXXX', TMPDIR => 1, CLEANUP => 1);
+ my @cmd = ('git', "--git-dir=$alt", qw(hash-object -w --stdin));
+ is(system(qw(git init -q --bare), $alt), 0, 'create alt directory');
+ open my $fh, '<', "$alt/config" or die "open failed: $!\n";
+ my $rd = popen_rd(\@cmd, {}, { 0 => fileno($fh) } );
+ close $fh or die "close failed: $!";
+ chomp(my $remote = <$rd>);
+ my $gcf = PublicInbox::Git->new($dir);
+ is($gcf->cat_file($remote), undef, "remote file not found");
+ open $fh, '>>', "$dir/objects/info/alternates" or
+ die "open failed: $!\n";
+ print $fh "$alt/objects" or die "print failed: $!\n";
+ close $fh or die "close failed: $!";
+ my $found = $gcf->cat_file($remote);
+ open $fh, '<', "$alt/config" or die "open failed: $!\n";
+ my $config = eval { local $/; <$fh> };
+ is($$found, $config, 'alternates reloaded');