tests: Tests for io mode io_uring

Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>

tests/qemublocktestdata/xml2json/file-backing_basic-aio_io_uring-srconly.json

@@ -0,0 +1,44 @@
+(
+  source only properties:
+  {
+    "driver": "file",
+    "filename": "/var/lib/libvirt/images/a"
+  }
+  backing store string:
+  /var/lib/libvirt/images/a
+)
+(
+  source only properties:
+  {
+    "driver": "file",
+    "filename": "/var/lib/libvirt/images/b"
+  }
+  backing store string:
+  /var/lib/libvirt/images/b
+)
+(
+  source only properties:
+  {
+    "driver": "gluster",
+    "volume": "images",
+    "path": "c",
+    "server": [
+      {
+        "type": "inet",
+        "host": "test.org",
+        "port": "24007"
+      }
+    ]
+  }
+  backing store string:
+  gluster://test.org:24007/images/c
+)
+(
+  source only properties:
+  {
+    "driver": "file",
+    "filename": "/var/lib/libvirt/images/d"
+  }
+  backing store string:
+  /var/lib/libvirt/images/d
+)

tests/qemublocktestdata/xml2json/file-backing_basic-aio_io_uring.json

@@ -0,0 +1,66 @@
+{
+  "node-name": "node-a-f",
+  "read-only": false,
+  "driver": "qcow",
+  "file": "node-a-s",
+  "backing": "node-b-f"
+}
+{
+  "driver": "file",
+  "filename": "/var/lib/libvirt/images/a",
+  "aio": "io_uring",
+  "node-name": "node-a-s",
+  "auto-read-only": true,
+  "discard": "unmap"
+}
+{
+  "node-name": "node-b-f",
+  "read-only": true,
+  "driver": "qed",
+  "file": "node-b-s",
+  "backing": "node-c-f"
+}
+{
+  "driver": "file",
+  "filename": "/var/lib/libvirt/images/b",
+  "aio": "io_uring",
+  "node-name": "node-b-s",
+  "auto-read-only": true,
+  "discard": "unmap"
+}
+{
+  "node-name": "node-c-f",
+  "read-only": true,
+  "driver": "vmdk",
+  "file": "node-c-s",
+  "backing": "node-d-f"
+}
+{
+  "driver": "gluster",
+  "volume": "images",
+  "path": "c",
+  "server": [
+    {
+      "type": "inet",
+      "host": "test.org",
+      "port": "24007"
+    }
+  ],
+  "node-name": "node-c-s",
+  "auto-read-only": true,
+  "discard": "unmap"
+}
+{
+  "node-name": "node-d-f",
+  "read-only": true,
+  "driver": "raw",
+  "file": "node-d-s"
+}
+{
+  "driver": "file",
+  "filename": "/var/lib/libvirt/images/d",
+  "aio": "io_uring",
+  "node-name": "node-d-s",
+  "auto-read-only": true,
+  "discard": "unmap"
+}

tests/qemublocktestdata/xml2json/file-backing_basic-aio_io_uring.xml

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+<disk type='file' device='disk'>
+  <driver name='qemu' type='qcow' io='io_uring'/>
+  <source file='/var/lib/libvirt/images/a'>
+    <privateData>
+      <nodenames>
+        <nodename type='storage' name='node-a-s'/>
+        <nodename type='format' name='node-a-f'/>
+      </nodenames>
+    </privateData>
+  </source>
+  <backingStore type='file' index='1'>
+    <format type='qed'/>
+    <source file='/var/lib/libvirt/images/b'>
+      <privateData>
+        <nodenames>
+          <nodename type='storage' name='node-b-s'/>
+          <nodename type='format' name='node-b-f'/>
+        </nodenames>
+      </privateData>
+    </source>
+    <backingStore type='network' index='2'>
+      <format type='vmdk'/>
+      <source protocol='gluster' name='images/c'>
+        <host name='test.org'/>
+        <privateData>
+          <nodenames>
+            <nodename type='storage' name='node-c-s'/>
+            <nodename type='format' name='node-c-f'/>
+          </nodenames>
+        </privateData>
+      </source>
+      <backingStore type='file' index='3'>
+        <format type='raw'/>
+        <source file='/var/lib/libvirt/images/d'>
+          <privateData>
+            <nodenames>
+              <nodename type='storage' name='node-d-s'/>
+              <nodename type='format' name='node-d-f'/>
+            </nodenames>
+          </privateData>
+        </source>
+        <backingStore/>
+      </backingStore>
+    </backingStore>
+  </backingStore>
+  <target dev='vda'/>
+</disk>