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qemu-iotests: 041: More robust assertion on quorum node 

Block nodes are now assigned names automatically, therefore the test
case is fragile in using fixed indices in result. Introduce a method in
iotests.py and do the matching more sensibly.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1460518995-1338-1-git-send-email-famz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Fam Zheng 2016-04-13 11:43:15 +08:00 committed by Max Reitz
parent 5f1525a685
commit e71fc0bae7
2 changed files with 18 additions and 8 deletions
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12
tests/qemu-iotests/041
View File

@ -810,8 +810,7 @@ class TestRepairQuorum(iotests.QMPTestCase):
self.assert_qmp(result, 'return', {})
self.complete_and_wait(drive="quorum0")
result = self.vm.qmp('query-named-block-nodes')
self.assert_qmp(result, 'return[0]/file', quorum_repair_img)
self.assert_has_block_node("repair0", quorum_repair_img)
# TODO: a better test requiring some QEMU infrastructure will be added
# to check that this file is really driven by quorum
self.vm.shutdown()
@ -833,8 +832,7 @@ class TestRepairQuorum(iotests.QMPTestCase):
self.cancel_and_wait(drive="quorum0", force=True)
# here we check that the last registered quorum file has not been
# swapped out and unref
result = self.vm.qmp('query-named-block-nodes')
self.assert_qmp(result, 'return[1]/file', quorum_img3)
self.assert_has_block_node(None, quorum_img3)
self.vm.shutdown()
def test_cancel_after_ready(self):
@ -850,10 +848,9 @@ class TestRepairQuorum(iotests.QMPTestCase):
self.assert_qmp(result, 'return', {})
self.wait_ready_and_cancel(drive="quorum0")
result = self.vm.qmp('query-named-block-nodes')
# here we check that the last registered quorum file has not been
# swapped out and unref
self.assert_qmp(result, 'return[1]/file', quorum_img3)
self.assert_has_block_node(None, quorum_img3)
self.vm.shutdown()
self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img),
'target image does not match source after mirroring')
@ -974,8 +971,7 @@ class TestRepairQuorum(iotests.QMPTestCase):
self.assert_qmp(result, 'return', {})
self.complete_and_wait(drive="quorum0")
result = self.vm.qmp('query-named-block-nodes')
self.assert_qmp(result, 'return[0]/file', quorum_repair_img)
self.assert_has_block_node("repair0", quorum_repair_img)
# TODO: a better test requiring some QEMU infrastructure will be added
# to check that this file is really driven by quorum
self.vm.shutdown()

14
tests/qemu-iotests/iotests.py
View File

@ -348,6 +348,20 @@ class QMPTestCase(unittest.TestCase):
result = self.vm.qmp('query-block-jobs')
self.assert_qmp(result, 'return', [])
def assert_has_block_node(self, node_name=None, file_name=None):
"""Issue a query-named-block-nodes and assert node_name and/or
file_name is present in the result"""
def check_equal_or_none(a, b):
return a == None or b == None or a == b
assert node_name or file_name
result = self.vm.qmp('query-named-block-nodes')
for x in result["return"]:
if check_equal_or_none(x.get("node-name"), node_name) and \
check_equal_or_none(x.get("file"), file_name):
return
self.assertTrue(False, "Cannot find %s %s in result:\n%s" % \
(node_name, file_name, result))
def cancel_and_wait(self, drive='drive0', force=False, resume=False):
'''Cancel a block job and wait for it to finish, returning the event'''
result = self.vm.qmp('block-job-cancel', device=drive, force=force)