Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-01-06' into staging

Block patches:
- Minor fixes and tests from the freeze period (too minor to be included
  in 4.2)
- Allow many bash iotests to test qcow2's external data file feature
- Add compress filter driver
- Fix Python iotests after 6f6e1698a6
- Fix for the backup job

# gpg: Signature made Mon 06 Jan 2020 14:33:06 GMT
# gpg:                using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg:                issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2020-01-06: (34 commits)
  backup-top: Begin drain earlier
  tests/qemu-iotests: Update tests to recent desugarized -accel option
  tests/qemu-iotests: add case to write compressed data of multiple clusters
  qcow2: Allow writing compressed data of multiple clusters
  block: introduce compress filter driver
  iotests: Allow check -o data_file
  iotests: Disable data_file where it cannot be used
  iotests: Make 198 work with data_file
  iotests: Make 137 work with data_file
  iotests: Make 110 work with data_file
  iotests: Make 091 work with data_file
  iotests: Avoid cp/mv of test images
  iotests: Use _rm_test_img for deleting test images
  iotests: Avoid qemu-img create
  iotests: Drop IMGOPTS use in 267
  iotests: Replace IMGOPTS='' by --no-opts
  iotests: Replace IMGOPTS= by -o
  iotests: Inject space into -ocompat=0.10 in 051
  iotests: Add -o and --no-opts to _make_test_img
  iotests: Let _make_test_img parse its parameters
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 12 insertions, 6 deletions

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 8739ec6613..13fd8b5cd2 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -811,15 +811,20 @@ class QMPTestCase(unittest.TestCase):
         self.assert_no_active_block_jobs()
         return result
 
-    def wait_until_completed(self, drive='drive0', check_offset=True, wait=60.0):
+    def wait_until_completed(self, drive='drive0', check_offset=True, wait=60.0,
+                             error=None):
         '''Wait for a block job to finish, returning the event'''
         while True:
             for event in self.vm.get_qmp_events(wait=wait):
                 if event['event'] == 'BLOCK_JOB_COMPLETED':
                     self.assert_qmp(event, 'data/device', drive)
-                    self.assert_qmp_absent(event, 'data/error')
-                    if check_offset:
-                        self.assert_qmp(event, 'data/offset', event['data']['len'])
+                    if error is None:
+                        self.assert_qmp_absent(event, 'data/error')
+                        if check_offset:
+                            self.assert_qmp(event, 'data/offset',
+                                            event['data']['len'])
+                    else:
+                        self.assert_qmp(event, 'data/error', error)
                     self.assert_no_active_block_jobs()
                     return event
                 elif event['event'] == 'JOB_STATUS_CHANGE':
@@ -837,7 +842,8 @@ class QMPTestCase(unittest.TestCase):
         self.assert_qmp(event, 'data/type', 'mirror')
         self.assert_qmp(event, 'data/offset', event['data']['len'])
 
-    def complete_and_wait(self, drive='drive0', wait_ready=True):
+    def complete_and_wait(self, drive='drive0', wait_ready=True,
+                          completion_error=None):
         '''Complete a block job and wait for it to finish'''
         if wait_ready:
             self.wait_ready(drive=drive)
@@ -845,7 +851,7 @@ class QMPTestCase(unittest.TestCase):
         result = self.vm.qmp('block-job-complete', device=drive)
         self.assert_qmp(result, 'return', {})
 
-        event = self.wait_until_completed(drive=drive)
+        event = self.wait_until_completed(drive=drive, error=completion_error)
         self.assert_qmp(event, 'data/type', 'mirror')
 
     def pause_wait(self, job_id='job0'):