[Qemu-block] [PATCH 4/7] qemu-iotests: 148: properly skip test if quorum support is missing

[Sascha Silbe]

qemu-iotests test case 148 already had some code for skipping the test
if quorum support is missing, but it didn't work in all
cases. TestQuorumEvents.setUp() gets run before the actual test class
(which contains the skipping code) and tries to start qemu with a drive
using the quorum driver. For some reason this works fine when using
qcow2, but fails for raw.

As the entire test case requires quorum, just check for availability
before even starting the test suite. Introduce a verify_quorum()
function in iotests.py for this purpose so future test cases can make
use of it.

Signed-off-by: Sascha Silbe <address@hidden>
Reviewed-by: Bo Tu <address@hidden>
---
 tests/qemu-iotests/148        | 4 +---
 tests/qemu-iotests/iotests.py | 5 +++++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/tests/qemu-iotests/148 b/tests/qemu-iotests/148
index d066ec3..e01b061 100644
--- a/tests/qemu-iotests/148
+++ b/tests/qemu-iotests/148
@@ -79,9 +79,6 @@ sector = "%d"
                 self.assert_qmp(event, 'data/sector-num', sector)
 
     def testQuorum(self):
-        if not 'quorum' in iotests.qemu_img_pipe('--help'):
-            return
-
         # Generate an error and get an event
         self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
                             (offset * sector_size, sector_size))
@@ -139,4 +136,5 @@ class TestFifoQuorumEvents(TestQuorumEvents):
     read_pattern = 'fifo'
 
 if __name__ == '__main__':
+    iotests.verify_quorum()
     iotests.main(supported_fmts=["raw"])
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index fb5c482..bf31ec8 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -437,6 +437,11 @@ def verify_platform(supported_oses=['linux']):
     if True not in [sys.platform.startswith(x) for x in supported_oses]:
         notrun('not suitable for this OS: %s' % sys.platform)
 
+def verify_quorum():
+    '''Skip test suite if quorum support is not available'''
+    if 'quorum' not in qemu_img_pipe('--help'):
+        notrun('quorum support missing')
+
 def main(supported_fmts=[], supported_oses=['linux']):
     '''Run tests'''
 
-- 
1.9.1