$ENV{TEST_STF} ||= do {
require Test::STF::MockServer;
my $stf = Test::STF::MockServer->new();
$HARRIET_GUARDS::STF = $stf;
$stf->url;
}
$ENV{TEST_STF} ||= do {
require Test::STF::MockServer;
my $stf = Test::STF::MockServer->new();
$HARRIET_GUARDS::STF = $stf;
$stf->url;
}