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[PATCH v4 11/23] iotests: 56: prepare for backup over block-copy

From: Vladimir Sementsov-Ogievskiy
Subject: [PATCH v4 11/23] iotests: 56: prepare for backup over block-copy
Date: Sun, 17 Jan 2021 00:46:53 +0300

After introducing parallel async copy requests instead of plain
cluster-by-cluster copying loop, we'll have to wait for paused status,
as we need to wait for several parallel request. So, let's gently wait
instead of just asserting that job already paused.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
 tests/qemu-iotests/056 | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tests/qemu-iotests/056 b/tests/qemu-iotests/056
index 052456aa00..e2978ba019 100755
--- a/tests/qemu-iotests/056
+++ b/tests/qemu-iotests/056
@@ -307,8 +307,13 @@ class BackupTest(iotests.QMPTestCase):
         event = self.vm.event_wait(name="BLOCK_JOB_ERROR",
                                    match={'data': {'device': 'drive0'}})
         self.assertNotEqual(event, None)
-        # OK, job should be wedged
-        res = self.vm.qmp('query-block-jobs')
+        # OK, job should pause, but it can't do it immediately, as it can't
+        # cancel other parallel requests (which didn't fail)
+        with iotests.Timeout(60, "Timeout waiting for backup actually paused"):
+            while True:
+                res = self.vm.qmp('query-block-jobs')
+                if res['return'][0]['status'] == 'paused':
+                    break
         self.assert_qmp(res, 'return[0]/status', 'paused')
         res = self.vm.qmp('block-job-dismiss', id='drive0')
         self.assert_qmp(res, 'error/desc',

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