diff --git a/tests/qemuxmlconfdata/disk-qcow2-datafile-store.x86_64-latest.args b/tests/qemuxmlconfdata/disk-qcow2-datafile-store.x86_64-latest.args
new file mode 100644
index 0000000000..5a64246af6
--- /dev/null
+++ b/tests/qemuxmlconfdata/disk-qcow2-datafile-store.x86_64-latest.args
@@ -0,0 +1,51 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1 \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
+/usr/bin/qemu-system-x86_64 \
+-name guest=QEMUGuest1,debug-threads=on \
+-S \
+-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-QEMUGuest1/master-key.aes"}' \
+-machine pc,usb=off,dump-guest-core=off,memory-backend=pc.ram,acpi=off \
+-accel tcg \
+-cpu qemu64 \
+-m size=219136k \
+-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":224395264}' \
+-overcommit mem-lock=off \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-blockdev '{"driver":"file","filename":"/tmp/data-file-store","node-name":"libvirt-9-storage","read-only":false}' \
+-blockdev '{"driver":"nbd","server":{"type":"unix","path":"/path/to/sock"},"export":"Volume2/Image","node-name":"libvirt-8-storage","auto-read-only":true,"discard":"unmap"}' \
+-blockdev '{"node-name":"libvirt-8-format","read-only":false,"driver":"qcow2","data-file":"libvirt-9-storage","file":"libvirt-8-storage"}' \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-8-format","id":"virtio-disk0","bootindex":1}' \
+-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-7-storage","read-only":false}' \
+-blockdev '{"driver":"nbd","server":{"type":"unix","path":"/var/run/nbdsock"},"export":"bar","node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
+-blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"qcow2","data-file":"libvirt-7-storage","file":"libvirt-6-storage"}' \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-6-format","id":"virtio-disk1"}' \
+-blockdev '{"driver":"nbd","server":{"type":"unix","path":"/path/to/sock/datafile"},"export":"Volume2/ImageDataFile","node-name":"libvirt-5-storage","read-only":false}' \
+-blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/rhel7.1484071879","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
+-blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"qcow2","data-file":"libvirt-5-storage","file":"libvirt-4-storage"}' \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-4-format","id":"virtio-disk2"}' \
+-blockdev '{"driver":"file","filename":"/tmp/data-file-store-2","node-name":"libvirt-3-storage","read-only":true}' \
+-blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/rhel7.1484071877","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
+-blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"qcow2","data-file":"libvirt-3-storage","file":"libvirt-2-storage"}' \
+-blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/rhel7.1484071880","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
+-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage","backing":"libvirt-2-format"}' \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk3"}' \
+-audiodev '{"id":"audio1","driver":"none"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxmlconfdata/disk-qcow2-datafile-store.x86_64-latest.xml b/tests/qemuxmlconfdata/disk-qcow2-datafile-store.x86_64-latest.xml
new file mode 100644
index 0000000000..a026749faf
--- /dev/null
+++ b/tests/qemuxmlconfdata/disk-qcow2-datafile-store.x86_64-latest.xml
@@ -0,0 +1,83 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219136</memory>
+  <currentMemory unit='KiB'>219136</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <cpu mode='custom' match='exact' check='none'>
+    <model fallback='forbid'>qemu64</model>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <disk type='network' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source protocol='nbd' name='Volume2/Image'>
+        <host transport='unix' socket='/path/to/sock'/>
+        <dataStore type='file'>
+          <format type='raw'/>
+          <source file='/tmp/data-file-store'/>
+        </dataStore>
+      </source>
+      <target dev='vda' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </disk>
+    <disk type='network' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source protocol='nbd' name='bar'>
+        <host transport='unix' socket='/var/run/nbdsock'/>
+        <dataStore type='block'>
+          <format type='raw'/>
+          <source dev='/dev/HostVG/QEMUGuest1'/>
+        </dataStore>
+      </source>
+      <target dev='vdb' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </disk>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='/var/lib/libvirt/images/rhel7.1484071879'>
+        <dataStore type='network'>
+          <format type='raw'/>
+          <source protocol='nbd' name='Volume2/ImageDataFile'>
+            <host transport='unix' socket='/path/to/sock/datafile'/>
+          </source>
+        </dataStore>
+      </source>
+      <target dev='vdc' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+    </disk>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='/var/lib/libvirt/images/rhel7.1484071880'/>
+      <backingStore type='file'>
+        <format type='qcow2'/>
+        <source file='/var/lib/libvirt/images/rhel7.1484071877'>
+          <dataStore type='file'>
+            <format type='raw'/>
+            <source file='/tmp/data-file-store-2'/>
+          </dataStore>
+        </source>
+      </backingStore>
+      <target dev='vdd' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
+    </disk>
+    <controller type='usb' index='0' model='piix3-uhci'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <audio id='1' type='none'/>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconfdata/disk-qcow2-datafile-store.xml b/tests/qemuxmlconfdata/disk-qcow2-datafile-store.xml
new file mode 100644
index 0000000000..dff5f15158
--- /dev/null
+++ b/tests/qemuxmlconfdata/disk-qcow2-datafile-store.xml
@@ -0,0 +1,69 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219136</memory>
+  <currentMemory unit='KiB'>219136</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <disk type='network' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source protocol='nbd' name='Volume2/Image'>
+        <host transport='unix' socket='/path/to/sock'/>
+        <dataStore type='file'>
+          <format type='raw'/>
+          <source file='/tmp/data-file-store'/>
+        </dataStore>
+      </source>
+      <target dev='vda' bus='virtio'/>
+    </disk>
+    <disk type='network' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source protocol='nbd' name='bar'>
+        <host transport='unix' socket='/var/run/nbdsock'/>
+        <dataStore type='block'>
+          <format type='raw'/>
+          <source dev='/dev/HostVG/QEMUGuest1'/>
+        </dataStore>
+      </source>
+      <target dev='vdb' bus='virtio'/>
+    </disk>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='/var/lib/libvirt/images/rhel7.1484071879'>
+        <dataStore type='network'>
+          <format type='raw'/>
+          <source protocol='nbd' name='Volume2/ImageDataFile'>
+            <host transport='unix' socket='/path/to/sock/datafile'/>
+          </source>
+        </dataStore>
+      </source>
+      <target dev='vdc' bus='virtio'/>
+    </disk>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='/var/lib/libvirt/images/rhel7.1484071880'/>
+      <backingStore type='file'>
+        <format type='qcow2'/>
+        <source file='/var/lib/libvirt/images/rhel7.1484071877'>
+          <dataStore type='file'>
+            <format type='raw'/>
+            <source file='/tmp/data-file-store-2'/>
+          </dataStore>
+        </source>
+      </backingStore>
+      <target dev='vdd' bus='virtio'/>
+    </disk>
+    <controller type='usb' index='0'/>
+    <controller type='pci' index='0' model='pci-root'/>
+    <memballoon model='virtio'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxmlconftest.c b/tests/qemuxmlconftest.c
index 194a4b8553..f3c8d0ae34 100644
--- a/tests/qemuxmlconftest.c
+++ b/tests/qemuxmlconftest.c
@@ -1651,6 +1651,7 @@ mymain(void)
     DO_TEST_CAPS_LATEST_PARSE_ERROR("disk-scsi-incompatible-address");
     DO_TEST_CAPS_LATEST("disk-backing-chains-index");
     DO_TEST_CAPS_LATEST("disk-backing-chains-noindex");
+    DO_TEST_CAPS_LATEST("disk-qcow2-datafile-store");
     DO_TEST_CAPS_ARCH_LATEST_FULL("disk-source-fd", "x86_64",
                                   ARG_FD_GROUP, "testgroup2", 2, 200, 205,
                                   ARG_FD_GROUP, "testgroup5", 1, 204,