test_driver: Add a disk device in the default config

Signed-off-by: NIlias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>

src/test/test_driver.c

@@ -438,6 +438,11 @@ static const char *defaultConnXML =
 "    <type>hvm</type>"
 "  </os>"
 "  <devices>"
+"    <disk type='file' device='disk'>"
+"      <source file='/guest/diskimage1'/>"
+"      <target dev='vda' bus='virtio'/>"
+"      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>"
+"    </disk>"
 "    <interface type='network'>"
 "      <mac address='aa:bb:cc:dd:ee:ff'/>"
 "      <source network='default' bridge='virbr0'/>"