Oh, here we meet the same problem:
All test config should have a `virt_test_type` parameter to mark which type this test script is, eg:
```
- boot: install setup image_copy unattended_install.cdrom
    virt_test_type = qemu libvirt
    type = boot
    restart_vm = yes
    kill_vm_on_error = yes
    login_timeout = 240
```
Thanks for @jzupka to point out this problem, We'd better to take care of all these new test cases.