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From 05fedde1374abb180cd2b51457385d8128aa7fe4 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 7 Feb 2020 11:24:00 +0000
Subject: [PATCH 03/18] iotests: Create VM.blockdev_create()

RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200207112404.25198-3-kwolf@redhat.com>
Patchwork-id: 93748
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 2/6] iotests: Create VM.blockdev_create()
Bugzilla: 1781637
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>

We have several almost identical copies of a blockdev_create() function
in different test cases. Time to create one unified function in
iotests.py.

To keep the diff managable, this patch only creates the function and
follow-up patches will convert the individual test cases.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit e9dbd1cae86f7cb6f8e470e1485aeb0c6e23ae64)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 tests/qemu-iotests/iotests.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 3cff671..5741efb 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -638,6 +638,22 @@ class VM(qtest.QEMUQtestMachine):
             elif status == 'null':
                 return error
 
+    # Returns None on success, and an error string on failure
+    def blockdev_create(self, options, job_id='job0', filters=None):
+        if filters is None:
+            filters = [filter_qmp_testfiles]
+        result = self.qmp_log('blockdev-create', filters=filters,
+                              job_id=job_id, options=options)
+
+        if 'return' in result:
+            assert result['return'] == {}
+            job_result = self.run_job(job_id)
+        else:
+            job_result = result['error']
+
+        log("")
+        return job_result
+
     def enable_migration_events(self, name):
         log('Enabling migration QMP events on %s...' % name)
         log(self.qmp('migrate-set-capabilities', capabilities=[
-- 
1.8.3.1