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iotests: Make 245 faster and more reliable

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Sometimes, 245 fails for me because some stream job has already finished
while the test expects it to still be active.  (With -c none, it fails
basically every time.) The most reliable way to fix this is to simply
set auto_finalize=false so the job will remain in the block graph as
long as we need it.  This allows us to drop the rate limiting, too,
which makes the test faster.

The only problem with this is that there is a single place that yields a
different error message depending on whether the stream job is still
copying data (so COR is enabled) or not (COR has been disabled, but the
job still has the WRITE_UNCHANGED permission on the target node).  We
can easily address that by expecting either error message.

Note that we do not need auto_finalize=false (or rate limiting) for the
active commit job, because It never completes without an explicit
block-job-complete anyway.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2019-05-15 22:15:03 +02:00 committed by Kevin Wolf
parent 86a4f599a6
commit c423a6af59
2 changed files with 26 additions and 8 deletions
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22
tests/qemu-iotests/245
View file

@ -862,7 +862,8 @@ class TestBlockdevReopen(iotests.QMPTestCase):
# hd2 <- hd0
result = self.vm.qmp('block-stream', conv_keys = True, job_id = 'stream0',
device = 'hd0', base_node = 'hd2', speed = 512 * 1024)
device = 'hd0', base_node = 'hd2',
auto_finalize = False)
self.assert_qmp(result, 'return', {})
# We can't remove hd2 while the stream job is ongoing
@ -873,7 +874,7 @@ class TestBlockdevReopen(iotests.QMPTestCase):
opts['backing'] = None
self.reopen(opts, {}, "Cannot change 'backing' link from 'hd0' to 'hd1'")
self.wait_until_completed(drive = 'stream0')
self.vm.run_job('stream0', auto_finalize = False, auto_dismiss = True)
# Reopen the chain during a block-stream job (from hd2 to hd1)
def test_block_stream_4(self):
@ -886,12 +887,16 @@ class TestBlockdevReopen(iotests.QMPTestCase):
# hd1 <- hd0
result = self.vm.qmp('block-stream', conv_keys = True, job_id = 'stream0',
device = 'hd1', speed = 512 * 1024)
device = 'hd1', auto_finalize = False)
self.assert_qmp(result, 'return', {})
# We can't reopen with the original options because that would
# make hd1 read-only and block-stream requires it to be read-write
self.reopen(opts, {}, "Can't set node 'hd1' to r/o with copy-on-read enabled")
# (Which error message appears depends on whether the stream job is
# already done with copying at this point.)
self.reopen(opts, {},
["Can't set node 'hd1' to r/o with copy-on-read enabled",
"Cannot make block node read-only, there is a writer on it"])
# We can't remove hd2 while the stream job is ongoing
opts['backing']['backing'] = None
@ -901,7 +906,7 @@ class TestBlockdevReopen(iotests.QMPTestCase):
opts['backing'] = None
self.reopen(opts)
self.wait_until_completed(drive = 'stream0')
self.vm.run_job('stream0', auto_finalize = False, auto_dismiss = True)
# Reopen the chain during a block-commit job (from hd0 to hd2)
def test_block_commit_1(self):
@ -913,7 +918,7 @@ class TestBlockdevReopen(iotests.QMPTestCase):
self.assert_qmp(result, 'return', {})
result = self.vm.qmp('block-commit', conv_keys = True, job_id = 'commit0',
device = 'hd0', speed = 1024 * 1024)
device = 'hd0')
self.assert_qmp(result, 'return', {})
# We can't remove hd2 while the commit job is ongoing
@ -944,7 +949,8 @@ class TestBlockdevReopen(iotests.QMPTestCase):
self.assert_qmp(result, 'return', {})
result = self.vm.qmp('block-commit', conv_keys = True, job_id = 'commit0',
device = 'hd0', top_node = 'hd1', speed = 1024 * 1024)
device = 'hd0', top_node = 'hd1',
auto_finalize = False)
self.assert_qmp(result, 'return', {})
# We can't remove hd2 while the commit job is ongoing
@ -956,7 +962,7 @@ class TestBlockdevReopen(iotests.QMPTestCase):
self.reopen(opts, {}, "Cannot change backing link if 'hd0' has an implicit backing file")
# hd2 <- hd0
self.wait_until_completed(drive = 'commit0')
self.vm.run_job('commit0', auto_finalize = False, auto_dismiss = True)
self.assert_qmp(self.get_node('hd0'), 'ro', False)
self.assertEqual(self.get_node('hd1'), None)

12
tests/qemu-iotests/245.out
View file

@ -3,3 +3,15 @@
Ran 18 tests
OK
{"execute": "job-finalize", "arguments": {"id": "commit0"}}
{"return": {}}
{"data": {"id": "commit0", "type": "commit"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"device": "commit0", "len": 3145728, "offset": 3145728, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"execute": "job-finalize", "arguments": {"id": "stream0"}}
{"return": {}}
{"data": {"id": "stream0", "type": "stream"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"device": "stream0", "len": 3145728, "offset": 3145728, "speed": 0, "type": "stream"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"execute": "job-finalize", "arguments": {"id": "stream0"}}
{"return": {}}
{"data": {"id": "stream0", "type": "stream"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"device": "stream0", "len": 3145728, "offset": 3145728, "speed": 0, "type": "stream"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}