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From 39bdd3797d4fc450f129a5923f885017f54ad6c4 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Fri, 14 Dec 2018 09:49:46 +0000
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Subject: [PATCH 2/2] iotests: Test migration with -blockdev
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20181214094946.26226-3-kwolf@redhat.com>
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Patchwork-id: 83512
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O-Subject: [RHEL-8.0 qemu-kvm PATCH 2/2] iotests: Test migration with -blockdev
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Bugzilla: 1659395
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RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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Check that block node activation and inactivation works with a block
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graph that is built with individually created nodes.
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RHEL: Disabled query-migrate call on the destination; this returns only
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an empty object in 2.12. Changed reference output for Python 2 (we lack
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the compatibility patches from upstream that make the output independent
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from the Python version).
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Reviewed-by: Max Reitz <mreitz@redhat.com>
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(cherry picked from commit 330ca111ea0979d8c6fc9b3958f72d6dce164d5a)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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 tests/qemu-iotests/234     | 123 +++++++++++++++++++++++++++++++++++++++++++++
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 tests/qemu-iotests/234.out |  28 +++++++++++
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 tests/qemu-iotests/group   |   1 +
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 3 files changed, 152 insertions(+)
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 create mode 100755 tests/qemu-iotests/234
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 create mode 100644 tests/qemu-iotests/234.out
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diff --git a/tests/qemu-iotests/234 b/tests/qemu-iotests/234
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new file mode 100755
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index 0000000..2b0f869
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--- /dev/null
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+++ b/tests/qemu-iotests/234
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@@ -0,0 +1,123 @@
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+#!/usr/bin/env python
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+#
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+# Copyright (C) 2018 Red Hat, Inc.
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+#
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program.  If not, see <http: www.gnu.org="" licenses=""/>.
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+#
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+# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
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+#
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+# Check that block node activation and inactivation works with a block graph
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+# that is built with individually created nodes
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+
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+import iotests
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+import os
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+
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+iotests.verify_image_format(supported_fmts=['qcow2'])
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+iotests.verify_platform(['linux'])
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+
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+with iotests.FilePath('img') as img_path, \
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+     iotests.FilePath('backing') as backing_path, \
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+     iotests.FilePath('mig_fifo_a') as fifo_a, \
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+     iotests.FilePath('mig_fifo_b') as fifo_b, \
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+     iotests.VM(path_suffix='a') as vm_a, \
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+     iotests.VM(path_suffix='b') as vm_b:
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+
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+    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, backing_path, '64M')
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+    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, img_path, '64M')
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+
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+    os.mkfifo(fifo_a)
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+    os.mkfifo(fifo_b)
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+
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+    iotests.log('Launching source VM...')
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+    (vm_a.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))
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+         .add_blockdev('%s,file=drive0-file,node-name=drive0' % (iotests.imgfmt))
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+         .add_blockdev('file,filename=%s,node-name=drive0-backing-file' % (backing_path))
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+         .add_blockdev('%s,file=drive0-backing-file,node-name=drive0-backing' % (iotests.imgfmt))
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+         .launch())
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+
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+    iotests.log('Launching destination VM...')
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+    (vm_b.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))
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+         .add_blockdev('%s,file=drive0-file,node-name=drive0' % (iotests.imgfmt))
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+         .add_blockdev('file,filename=%s,node-name=drive0-backing-file' % (backing_path))
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+         .add_blockdev('%s,file=drive0-backing-file,node-name=drive0-backing' % (iotests.imgfmt))
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+         .add_incoming("exec: cat '%s'" % (fifo_a))
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+         .launch())
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+
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+    # Add a child node that was created after the parent node. The reverse case
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+    # is covered by the -blockdev options above.
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+    iotests.log(vm_a.qmp('blockdev-snapshot', node='drive0-backing',
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+                         overlay='drive0'))
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+    iotests.log(vm_b.qmp('blockdev-snapshot', node='drive0-backing',
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+                         overlay='drive0'))
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+
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+    iotests.log('Enabling migration QMP events on A...')
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+    iotests.log(vm_a.qmp('migrate-set-capabilities', capabilities=[
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+        {
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+            'capability': 'events',
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+            'state': True
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+        }
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+    ]))
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+
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+    iotests.log('Starting migration to B...')
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+    iotests.log(vm_a.qmp('migrate', uri='exec:cat >%s' % (fifo_a)))
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+    with iotests.Timeout(3, 'Migration does not complete'):
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+        while True:
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+            event = vm_a.event_wait('MIGRATION')
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+            iotests.log(event, filters=[iotests.filter_qmp_event])
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+            if event['data']['status'] == 'completed':
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+                break
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+
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+    iotests.log(vm_a.qmp('query-migrate')['return']['status'])
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+    # Returns only {} on this QEMU version (no status)
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+    # iotests.log(vm_b.qmp('query-migrate')['return']['status'])
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+
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+    iotests.log(vm_a.qmp('query-status'))
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+    iotests.log(vm_b.qmp('query-status'))
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+
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+    iotests.log('Add a second parent to drive0-file...')
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+    iotests.log(vm_b.qmp('blockdev-add', driver='raw', file='drive0-file',
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+                         node_name='drive0-raw'))
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+
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+    iotests.log('Restart A with -incoming and second parent...')
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+    vm_a.shutdown()
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+    (vm_a.add_blockdev('raw,file=drive0-file,node-name=drive0-raw')
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+         .add_incoming("exec: cat '%s'" % (fifo_b))
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+         .launch())
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+
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+    iotests.log(vm_a.qmp('blockdev-snapshot', node='drive0-backing',
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+                         overlay='drive0'))
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+
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+    iotests.log('Enabling migration QMP events on B...')
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+    iotests.log(vm_b.qmp('migrate-set-capabilities', capabilities=[
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+        {
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+            'capability': 'events',
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+            'state': True
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+        }
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+    ]))
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+
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+    iotests.log('Starting migration back to A...')
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+    iotests.log(vm_b.qmp('migrate', uri='exec:cat >%s' % (fifo_b)))
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+    with iotests.Timeout(3, 'Migration does not complete'):
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+        while True:
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+            event = vm_b.event_wait('MIGRATION')
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+            iotests.log(event, filters=[iotests.filter_qmp_event])
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+            if event['data']['status'] == 'completed':
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+                break
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+
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+    # Returns only {} on this QEMU version (no status)
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+    # iotests.log(vm_a.qmp('query-migrate')['return']['status'])
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+    iotests.log(vm_b.qmp('query-migrate')['return']['status'])
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+
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+    iotests.log(vm_a.qmp('query-status'))
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+    iotests.log(vm_b.qmp('query-status'))
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diff --git a/tests/qemu-iotests/234.out b/tests/qemu-iotests/234.out
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new file mode 100644
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index 0000000..c7cd95f
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--- /dev/null
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+++ b/tests/qemu-iotests/234.out
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@@ -0,0 +1,28 @@
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+Launching source VM...
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+Launching destination VM...
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+{u'return': {}}
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+{u'return': {}}
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+Enabling migration QMP events on A...
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+{u'return': {}}
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+Starting migration to B...
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+{u'return': {}}
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+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'setup'}, u'event': u'MIGRATION'}
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+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'active'}, u'event': u'MIGRATION'}
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+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'completed'}, u'event': u'MIGRATION'}
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+completed
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+{u'return': {u'status': u'postmigrate', u'singlestep': False, u'running': False}}
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+{u'return': {u'status': u'running', u'singlestep': False, u'running': True}}
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+Add a second parent to drive0-file...
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+{u'return': {}}
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+Restart A with -incoming and second parent...
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+{u'return': {}}
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+Enabling migration QMP events on B...
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+{u'return': {}}
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+Starting migration back to A...
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+{u'return': {}}
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+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'setup'}, u'event': u'MIGRATION'}
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+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'active'}, u'event': u'MIGRATION'}
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+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u'status': u'completed'}, u'event': u'MIGRATION'}
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+completed
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+{u'return': {u'status': u'running', u'singlestep': False, u'running': True}}
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+{u'return': {u'status': u'postmigrate', u'singlestep': False, u'running': False}}
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diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
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index 303daa5..b30689e 100644
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--- a/tests/qemu-iotests/group
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+++ b/tests/qemu-iotests/group
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@@ -224,3 +224,4 @@
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 226 auto quick
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 229 auto quick
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 231 auto quick
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+234 auto quick migration
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-- 
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1.8.3.1
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