+ $res = $cb->(GET('/test/_/text/config/raw'));
+ my $f = "$tmpdir/cfg";
+ open my $fh, '>', $f or die;
+ print $fh $res->content or die;
+ close $fh or die;
+ my $cfg = PublicInbox::Config->new($f);
+ is($cfg->{"$cfgpfx.address"}, $addr, 'got expected address in config');