vircgrouptest: prepare testCgroupDetectMounts for cgroup v2

Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

tests/vircgroupdata/all-in-one.parsed

@@ -8,3 +8,4 @@ blkio        /not/really/sys/fs/cgroup
 net_cls      <null>
 perf_event   <null>
 name=systemd <null>
+unified      <null>

tests/vircgroupdata/cgroups1.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      /sys/fs/cgroup/net_cls
 perf_event   <null>
 name=systemd <null>
+unified      <null>

tests/vircgroupdata/cgroups2.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      <null>
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd <null>
+unified      <null>

tests/vircgroupdata/cgroups3.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      /sys/fs/cgroup/net_cls
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd <null>
+unified      <null>

tests/vircgroupdata/fedora-18.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      /sys/fs/cgroup/net_cls
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd /sys/fs/cgroup/systemd
+unified      <null>

tests/vircgroupdata/fedora-21.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      /sys/fs/cgroup/net_cls,net_prio
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd /sys/fs/cgroup/systemd
+unified      <null>

tests/vircgroupdata/kubevirt.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      <null>
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd <null>
+unified      <null>

tests/vircgroupdata/ovirt-node-6.6.parsed

@@ -8,3 +8,4 @@ blkio        /cgroup/blkio
 net_cls      /cgroup/net_cls
 perf_event   <null>
 name=systemd <null>
+unified      <null>

tests/vircgroupdata/ovirt-node-7.1.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      /sys/fs/cgroup/net_cls
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd /sys/fs/cgroup/systemd
+unified      <null>

tests/vircgroupdata/rhel-7.1.parsed

@@ -8,3 +8,4 @@ blkio        /sys/fs/cgroup/blkio
 net_cls      /sys/fs/cgroup/net_cls
 perf_event   /sys/fs/cgroup/perf_event
 name=systemd /sys/fs/cgroup/systemd
+unified      <null>

tests/vircgrouptest.c

@@ -175,6 +175,8 @@ testCgroupDetectMounts(const void *args)
                           virCgroupControllerTypeToString(i),
                           NULLSTR(group->legacy[i].mountPoint));
     }
+    virBufferAsprintf(&buf, "%-12s %s\n",
+                      "unified", NULLSTR(group->unified.mountPoint));
     if (virBufferCheckError(&buf) < 0)
         goto cleanup;