From 2476593dd4bc78bbf9183e873f2ca641ce15fddf Mon Sep 17 00:00:00 2001
From: Max Reitz <mreitz@redhat.com>
Date: Mon, 18 Jun 2018 14:47:36 +0200
Subject: [PATCH 26/54] iotests: Add test for cancelling a mirror job
RH-Author: Max Reitz <mreitz@redhat.com>
Message-id: <20180618144736.29873-4-mreitz@redhat.com>
Patchwork-id: 80745
O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH 3/3] iotests: Add test for cancelling a mirror job
Bugzilla: 1572856
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
We already have an extensive mirror test (041) which does cover
cancelling a mirror job, especially after it has emitted the READY
event. However, it does not check what exact events are emitted after
block-job-cancel is executed. More importantly, it does not use
throttling to ensure that it covers the case of block-job-cancel before
READY.
It would be possible to add this case to 041, but considering it is
already our largest test file, it makes sense to create a new file for
these cases.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180501220509.14152-3-mreitz@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
(cherry picked from commit dc885fff972c447f51572afc4c921a26b880731b)
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
tests/qemu-iotests/218 | 138 +++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/218.out | 30 ++++++++++
tests/qemu-iotests/group | 1 +
3 files changed, 169 insertions(+)
create mode 100644 tests/qemu-iotests/218
create mode 100644 tests/qemu-iotests/218.out
diff --git a/tests/qemu-iotests/218 b/tests/qemu-iotests/218
new file mode 100644
index 0000000..92c331b
--- /dev/null
+++ b/tests/qemu-iotests/218
@@ -0,0 +1,138 @@
+#!/usr/bin/env python
+#
+# This test covers what happens when a mirror block job is cancelled
+# in various phases of its existence.
+#
+# Note that this test only checks the emitted events (i.e.
+# BLOCK_JOB_COMPLETED vs. BLOCK_JOB_CANCELLED), it does not compare
+# whether the target is in sync with the source when the
+# BLOCK_JOB_COMPLETED event occurs. This is covered by other tests
+# (such as 041).
+#
+# Copyright (C) 2018 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# Creator/Owner: Max Reitz <mreitz@redhat.com>
+
+import iotests
+from iotests import log
+
+iotests.verify_platform(['linux'])
+
+
+# Launches the VM, adds two null-co nodes (source and target), and
+# starts a blockdev-mirror job on them.
+#
+# Either both or none of speed and buf_size must be given.
+
+def start_mirror(vm, speed=None, buf_size=None):
+ vm.launch()
+
+ ret = vm.qmp('blockdev-add',
+ node_name='source',
+ driver='null-co',
+ size=1048576)
+ assert ret['return'] == {}
+
+ ret = vm.qmp('blockdev-add',
+ node_name='target',
+ driver='null-co',
+ size=1048576)
+ assert ret['return'] == {}
+
+ if speed is not None:
+ ret = vm.qmp('blockdev-mirror',
+ job_id='mirror',
+ device='source',
+ target='target',
+ sync='full',
+ speed=speed,
+ buf_size=buf_size)
+ else:
+ ret = vm.qmp('blockdev-mirror',
+ job_id='mirror',
+ device='source',
+ target='target',
+ sync='full')
+
+ assert ret['return'] == {}
+
+
+log('')
+log('=== Cancel mirror job before convergence ===')
+log('')
+
+log('--- force=false ---')
+log('')
+
+with iotests.VM() as vm:
+ # Low speed so it does not converge
+ start_mirror(vm, 65536, 65536)
+
+ log('Cancelling job')
+ log(vm.qmp('block-job-cancel', device='mirror', force=False))
+
+ log(vm.event_wait('BLOCK_JOB_CANCELLED'),
+ filters=[iotests.filter_qmp_event])
+
+log('')
+log('--- force=true ---')
+log('')
+
+with iotests.VM() as vm:
+ # Low speed so it does not converge
+ start_mirror(vm, 65536, 65536)
+
+ log('Cancelling job')
+ log(vm.qmp('block-job-cancel', device='mirror', force=True))
+
+ log(vm.event_wait('BLOCK_JOB_CANCELLED'),
+ filters=[iotests.filter_qmp_event])
+
+
+log('')
+log('=== Cancel mirror job after convergence ===')
+log('')
+
+log('--- force=false ---')
+log('')
+
+with iotests.VM() as vm:
+ start_mirror(vm)
+
+ log(vm.event_wait('BLOCK_JOB_READY'),
+ filters=[iotests.filter_qmp_event])
+
+ log('Cancelling job')
+ log(vm.qmp('block-job-cancel', device='mirror', force=False))
+
+ log(vm.event_wait('BLOCK_JOB_COMPLETED'),
+ filters=[iotests.filter_qmp_event])
+
+log('')
+log('--- force=true ---')
+log('')
+
+with iotests.VM() as vm:
+ start_mirror(vm)
+
+ log(vm.event_wait('BLOCK_JOB_READY'),
+ filters=[iotests.filter_qmp_event])
+
+ log('Cancelling job')
+ log(vm.qmp('block-job-cancel', device='mirror', force=True))
+
+ log(vm.event_wait('BLOCK_JOB_CANCELLED'),
+ filters=[iotests.filter_qmp_event])
diff --git a/tests/qemu-iotests/218.out b/tests/qemu-iotests/218.out
new file mode 100644
index 0000000..7dbf78e
--- /dev/null
+++ b/tests/qemu-iotests/218.out
@@ -0,0 +1,30 @@
+
+=== Cancel mirror job before convergence ===
+
+--- force=false ---
+
+Cancelling job
+{u'return': {}}
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'mirror', u'type': u'mirror', u'speed': 65536, u'len': 1048576, u'offset': 65536}, u'event': u'BLOCK_JOB_CANCELLED'}
+
+--- force=true ---
+
+Cancelling job
+{u'return': {}}
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'mirror', u'type': u'mirror', u'speed': 65536, u'len': 1048576, u'offset': 65536}, u'event': u'BLOCK_JOB_CANCELLED'}
+
+=== Cancel mirror job after convergence ===
+
+--- force=false ---
+
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'mirror', u'type': u'mirror', u'speed': 0, u'len': 1048576, u'offset': 1048576}, u'event': u'BLOCK_JOB_READY'}
+Cancelling job
+{u'return': {}}
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'mirror', u'type': u'mirror', u'speed': 0, u'len': 1048576, u'offset': 1048576}, u'event': u'BLOCK_JOB_COMPLETED'}
+
+--- force=true ---
+
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'mirror', u'type': u'mirror', u'speed': 0, u'len': 1048576, u'offset': 1048576}, u'event': u'BLOCK_JOB_READY'}
+Cancelling job
+{u'return': {}}
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'device': u'mirror', u'type': u'mirror', u'speed': 0, u'len': 1048576, u'offset': 1048576}, u'event': u'BLOCK_JOB_CANCELLED'}
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 99777ec..3a89aed 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -212,3 +212,4 @@
211 rw auto quick
212 rw auto quick
213 rw auto quick
+218 rw auto quick
--
1.8.3.1