snapshot/cli: Fix snapshot status xml output

    Backport of http://review.gluster.org/#/c/14018/

snap status --xml errors out if a brick is down and
doesn't have pid. It is handled in the cli of the snap
status where "N/A" is displayed in such a scenario.
Handled the same in xml

snap status <snapname> --xml fails as the writer is
not initialised for the same. Using GF_SNAP_STATUS_TYPE_ITER
instead of GF_SNAP_STATUS_TYPE_SNAP for all snap's
status to differentiate between the two scenarios.

Added testcase volume-snapshot-xml.t to check
all snapshot commands xml outputs

> Reviewed-on: http://review.gluster.org/14018
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>

Change-Id: I99563e8f3e84f1aaeabd865326bb825c44f5c745
BUG: 1369372
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/15291
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/tests/basic/volume-snapshot-xml.t b/tests/basic/volume-snapshot-xml.t
new file mode 100755
index 00000000000..d58e898083a
--- /dev/null
+++ b/tests/basic/volume-snapshot-xml.t
@@ -0,0 +1,76 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../snapshot.rc
+
+function get-xml()
+{
+        $CLI $1 --xml | xmllint --format - | grep $2 | sed 's/\(<"$2">\|<\/"$2">\)//g'
+}
+
+cleanup;
+TEST verify_lvm_version;
+TEST glusterd;
+TEST pidof glusterd;
+
+TEST setup_lvm 1
+
+TEST $CLI volume create $V0 $H0:$L1
+TEST $CLI volume start $V0
+
+# Snapshot config xmls
+EXPECT "enable" get-xml "snapshot config activate-on-create enable" "activateOnCreate"
+EXPECT "100" get-xml "snapshot config $V0 snap-max-hard-limit 100" "newHardLimit"
+EXPECT "70" get-xml "snapshot config snap-max-soft-limit 70" "newSoftLimit"
+EXPECT "enable" get-xml "snapshot config auto-delete enable" "autoDelete"
+
+# Snapshot create, activate, deactivate xmls
+EXPECT "snap1" get-xml "snapshot create snap1 $V0 no-timestamp" "name"
+EXPECT "snap1" get-xml "snapshot deactivate snap1" "name"
+EXPECT "snap1" get-xml "snapshot activate snap1" "name"
+EXPECT "snap2" get-xml "snapshot create snap2 $V0 no-timestamp" "name"
+
+# Snapshot info xmls
+EXPECT "2" get-xml "snapshot info" "count"
+EXPECT "Started" get-xml "snapshot info" "status"
+EXPECT "2" get-xml "snapshot info volume $V0" "count"
+EXPECT "Started" get-xml "snapshot info volume $V0" "status"
+EXPECT "1" get-xml "snapshot info snap1" "count"
+EXPECT "2" get-xml "snapshot info snap1" "snapCount"
+EXPECT "Started" get-xml "snapshot info snap1" "status"
+
+# Snapshot list xmls
+EXPECT "2" get-xml "snapshot list" "count"
+EXPECT "snap2" get-xml "snapshot list $V0" "snapshot"
+
+# Snapshot status xmls
+EXPECT "snap2" get-xml "snapshot status" "name"
+EXPECT "snap2" get-xml "snapshot deactivate snap2" "name"
+EXPECT "N/A" get-xml "snapshot status" "pid"
+EXPECT "snap1" get-xml "snapshot status snap1" "name"
+EXPECT "Yes" get-xml "snapshot status snap1" "brick_running"
+
+# Snapshot restore xmls
+TEST $CLI volume stop $V0
+EXPECT "snap2" get-xml "snapshot restore snap2" "name"
+EXPECT "30807" get-xml "snapshot restore snap2" "opErrno"
+EXPECT "0" get-xml "snapshot restore snap1" "opErrno"
+
+# Snapshot delete xmls
+TEST $CLI volume start $V0
+EXPECT "snap1" get-xml "snapshot create snap1 $V0 no-timestamp" "name"
+EXPECT "snap2" get-xml "snapshot create snap2 $V0 no-timestamp" "name"
+EXPECT "snap3" get-xml "snapshot create snap3 $V0 no-timestamp" "name"
+EXPECT "Success" get-xml "snapshot delete snap3" "status"
+EXPECT "Success" get-xml "snapshot delete all" "status"
+EXPECT "0" get-xml "snapshot list" "count"
+EXPECT "snap1" get-xml "snapshot create snap1 $V0 no-timestamp" "name"
+EXPECT "snap2" get-xml "snapshot create snap2 $V0 no-timestamp" "name"
+EXPECT "snap3" get-xml "snapshot create snap3 $V0 no-timestamp" "name"
+EXPECT "Success" get-xml "snapshot delete volume $V0" "status"
+EXPECT "0" get-xml "snapshot list" "count"
+
+# Snapshot clone xmls
+# Snapshot clone xml is broken. Once it is fixed it will be added here.
+
+cleanup;