tests: qemumonitorjson: Test node name detection on networked storage

tests/qemumonitorjsondata/qemumonitorjson-nodename-gluster.json

+[
+    {
+      "iops_rd": 0,
+      "detect_zeroes": "off",
+      "image": {
+        "backing-image": {
+          "virtual-size": 197120,
+          "filename": "gluster://gluster-host/vol0/img0",
+          "format": "raw",
+          "actual-size": 197120
+        },
+        "backing-filename-format": "raw",
+        "virtual-size": 197120,
+        "filename": "gluster://gluster-host/vol0/img1",
+        "cluster-size": 65536,
+        "format": "qcow2",
+        "actual-size": 197120,
+        "format-specific": {
+          "type": "qcow2",
+          "data": {
+            "compat": "1.1",
+            "lazy-refcounts": false,
+            "refcount-bits": 16,
+            "corrupt": false
+          }
+        },
+        "full-backing-filename": "gluster://gluster-host/vol0/img0",
+        "backing-filename": "gluster://gluster-host/vol0/img0",
+        "dirty-flag": false
+      },
+      "iops_wr": 0,
+      "ro": false,
+      "node-name": "#block1008",
+      "backing_file_depth": 1,
+      "drv": "qcow2",
+      "iops": 0,
+      "bps_wr": 0,
+      "write_threshold": 0,
+      "backing_file": "gluster://gluster-host/vol0/img0",
+      "encrypted": false,
+      "bps": 0,
+      "bps_rd": 0,
+      "cache": {
+        "no-flush": false,
+        "direct": true,
+        "writeback": true
+      },
+      "file": "gluster://gluster-host/vol0/img1",
+      "encryption_key_missing": false
+    },
+    {
+      "iops_rd": 0,
+      "detect_zeroes": "off",
+      "image": {
+        "virtual-size": 197120,
+        "filename": "gluster://gluster-host/vol0/img1",
+        "format": "gluster",
+        "actual-size": 197120
+      },
+      "iops_wr": 0,
+      "ro": false,
+      "node-name": "#block981",
+      "backing_file_depth": 0,
+      "drv": "gluster",
+      "iops": 0,
+      "bps_wr": 0,
+      "write_threshold": 0,
+      "encrypted": false,
+      "bps": 0,
+      "bps_rd": 0,
+      "cache": {
+        "no-flush": false,
+        "direct": true,
+        "writeback": true
+      },
+      "file": "gluster://gluster-host/vol0/img1",
+      "encryption_key_missing": false
+    },
+    {
+      "iops_rd": 0,
+      "detect_zeroes": "off",
+      "image": {
+        "virtual-size": 197120,
+        "filename": "gluster://gluster-host/vol0/img0",
+        "format": "raw",
+        "actual-size": 197120
+      },
+      "iops_wr": 0,
+      "ro": true,
+      "node-name": "#block349",
+      "backing_file_depth": 0,
+      "drv": "raw",
+      "iops": 0,
+      "bps_wr": 0,
+      "write_threshold": 0,
+      "encrypted": false,
+      "bps": 0,
+      "bps_rd": 0,
+      "cache": {
+        "no-flush": false,
+        "direct": true,
+        "writeback": true
+      },
+      "file": "gluster://gluster-host/vol0/img0",
+      "encryption_key_missing": false
+    },
+    {
+      "iops_rd": 0,
+      "detect_zeroes": "off",
+      "image": {
+        "virtual-size": 197120,
+        "filename": "gluster://gluster-host/vol0/img0",
+        "format": "gluster",
+        "actual-size": 197120
+      },
+      "iops_wr": 0,
+      "ro": true,
+      "node-name": "#block269",
+      "backing_file_depth": 0,
+      "drv": "gluster",
+      "iops": 0,
+      "bps_wr": 0,
+      "write_threshold": 0,
+      "encrypted": false,
+      "bps": 0,
+      "bps_rd": 0,
+      "cache": {
+        "no-flush": false,
+        "direct": true,
+        "writeback": true
+      },
+      "file": "gluster://gluster-host/vol0/img0",
+      "encryption_key_missing": false
+    }
+  ]

tests/qemumonitorjsondata/qemumonitorjson-nodename-gluster.result

+filename    : 'gluster://gluster-host/vol0/img1'
+format node : '#block1008'
+storage node: '#block981'
+backingfile : 'gluster://gluster-host/vol0/img0'
+backing ptr : '#block349'
+  filename    : 'gluster://gluster-host/vol0/img0'
+  format node : '#block349'
+  storage node: '#block269'
+  backingfile : '<null>'
+  backing ptr : '<null>'

tests/qemumonitorjsontest.c

@@ -2932,6 +2932,7 @@ mymain(void)
     DO_TEST_BLOCK_NODE_DETECT("2", "#block161");
     DO_TEST_BLOCK_NODE_DETECT("same-backing", "#block170,#block574");
     DO_TEST_BLOCK_NODE_DETECT("relative", "#block153,#block1177");
+    DO_TEST_BLOCK_NODE_DETECT("gluster", "#block1008");
 
 #undef DO_TEST_BLOCK_NODE_DETECT