From: Max Reitz <mreitz@redhat.com>
To: qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-devel@nongnu.org, Max Reitz <mreitz@redhat.com>
Subject: [PATCH v3 3/4] migrate-bitmaps-test: Fix pylint warnings
Date: Fri, 14 May 2021 17:43:50 +0200 [thread overview]
Message-ID: <20210514154351.629027-4-mreitz@redhat.com> (raw)
In-Reply-To: <20210514154351.629027-1-mreitz@redhat.com>
There are a couple of things pylint takes issue with:
- The "time" import is unused
- The import order (iotests should come last)
- get_bitmap_hash() doesn't use @self and so should be a function
- Semicolons at the end of some lines
- Parentheses after "if"
- Some lines are too long (80 characters instead of 79)
- inject_test_case()'s @name parameter shadows a top-level @name
variable
- "lambda self: mc(self)" were equivalent to just "mc", but in
inject_test_case(), it is not equivalent, so add a comment and disable
the warning locally
- Always put two empty lines after a function
- f'exec: cat > /dev/null' does not need to be an f-string
Fix them.
Signed-off-by: Max Reitz <mreitz@redhat.com>
---
tests/qemu-iotests/tests/migrate-bitmaps-test | 41 +++++++++++--------
1 file changed, 23 insertions(+), 18 deletions(-)
diff --git a/tests/qemu-iotests/tests/migrate-bitmaps-test b/tests/qemu-iotests/tests/migrate-bitmaps-test
index a5c7bc83e0..31d3255943 100755
--- a/tests/qemu-iotests/tests/migrate-bitmaps-test
+++ b/tests/qemu-iotests/tests/migrate-bitmaps-test
@@ -20,11 +20,10 @@
#
import os
-import iotests
-import time
import itertools
import operator
import re
+import iotests
from iotests import qemu_img, qemu_img_create, Timeout
@@ -37,6 +36,12 @@ mig_cmd = 'exec: cat > ' + mig_file
incoming_cmd = 'exec: cat ' + mig_file
+def get_bitmap_hash(vm):
+ result = vm.qmp('x-debug-block-dirty-bitmap-sha256',
+ node='drive0', name='bitmap0')
+ return result['return']['sha256']
+
+
class TestDirtyBitmapMigration(iotests.QMPTestCase):
def tearDown(self):
self.vm_a.shutdown()
@@ -62,21 +67,16 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase):
params['persistent'] = True
result = vm.qmp('block-dirty-bitmap-add', **params)
- self.assert_qmp(result, 'return', {});
-
- def get_bitmap_hash(self, vm):
- result = vm.qmp('x-debug-block-dirty-bitmap-sha256',
- node='drive0', name='bitmap0')
- return result['return']['sha256']
+ self.assert_qmp(result, 'return', {})
def check_bitmap(self, vm, sha256):
result = vm.qmp('x-debug-block-dirty-bitmap-sha256',
node='drive0', name='bitmap0')
if sha256:
- self.assert_qmp(result, 'return/sha256', sha256);
+ self.assert_qmp(result, 'return/sha256', sha256)
else:
self.assert_qmp(result, 'error/desc',
- "Dirty bitmap 'bitmap0' not found");
+ "Dirty bitmap 'bitmap0' not found")
def do_test_migration_resume_source(self, persistent, migrate_bitmaps):
granularity = 512
@@ -97,7 +97,7 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase):
self.add_bitmap(self.vm_a, granularity, persistent)
for r in regions:
self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % r)
- sha256 = self.get_bitmap_hash(self.vm_a)
+ sha256 = get_bitmap_hash(self.vm_a)
result = self.vm_a.qmp('migrate', uri=mig_cmd)
while True:
@@ -106,7 +106,7 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase):
break
while True:
result = self.vm_a.qmp('query-status')
- if (result['return']['status'] == 'postmigrate'):
+ if result['return']['status'] == 'postmigrate':
break
# test that bitmap is still here
@@ -164,7 +164,7 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase):
self.add_bitmap(self.vm_a, granularity, persistent)
for r in regions:
self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % r)
- sha256 = self.get_bitmap_hash(self.vm_a)
+ sha256 = get_bitmap_hash(self.vm_a)
if pre_shutdown:
self.vm_a.shutdown()
@@ -214,16 +214,20 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase):
self.check_bitmap(self.vm_b, sha256 if persistent else False)
-def inject_test_case(klass, name, method, *args, **kwargs):
+def inject_test_case(klass, suffix, method, *args, **kwargs):
mc = operator.methodcaller(method, *args, **kwargs)
- setattr(klass, 'test_' + method + name, lambda self: mc(self))
+ # The lambda is required to enforce the `self` parameter. Without it,
+ # `mc` would be called without any arguments, and then complain.
+ # pylint: disable=unnecessary-lambda
+ setattr(klass, 'test_' + method + suffix, lambda self: mc(self))
+
for cmb in list(itertools.product((True, False), repeat=5)):
name = ('_' if cmb[0] else '_not_') + 'persistent_'
name += ('_' if cmb[1] else '_not_') + 'migbitmap_'
name += '_online' if cmb[2] else '_offline'
name += '_shared' if cmb[3] else '_nonshared'
- if (cmb[4]):
+ if cmb[4]:
name += '__pre_shutdown'
inject_test_case(TestDirtyBitmapMigration, name, 'do_test_migration',
@@ -270,7 +274,8 @@ class TestDirtyBitmapBackingMigration(iotests.QMPTestCase):
self.assert_qmp(result, 'return', {})
# Check that the bitmaps are there
- for node in self.vm.qmp('query-named-block-nodes', flat=True)['return']:
+ nodes = self.vm.qmp('query-named-block-nodes', flat=True)['return']
+ for node in nodes:
if 'node0' in node['node-name']:
self.assert_qmp(node, 'dirty-bitmaps[0]/name', 'bmap0')
@@ -287,7 +292,7 @@ class TestDirtyBitmapBackingMigration(iotests.QMPTestCase):
"""
Continue the source after migration.
"""
- result = self.vm.qmp('migrate', uri=f'exec: cat > /dev/null')
+ result = self.vm.qmp('migrate', uri='exec: cat > /dev/null')
self.assert_qmp(result, 'return', {})
with Timeout(10, 'Migration timeout'):
--
2.31.1
next prev parent reply other threads:[~2021-05-14 16:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 15:43 [PATCH v3 0/4] iotests/297: Cover tests/ Max Reitz
2021-05-14 15:43 ` [PATCH v3 1/4] iotests/297: Drop 169 and 199 from the skip list Max Reitz
2021-05-14 15:43 ` [PATCH v3 2/4] migrate-bitmaps-postcopy-test: Fix pylint warnings Max Reitz
2021-05-14 15:43 ` Max Reitz [this message]
2021-05-14 16:40 ` [PATCH v3 3/4] migrate-bitmaps-test: " Vladimir Sementsov-Ogievskiy
2021-05-14 15:43 ` [PATCH v3 4/4] iotests/297: Cover tests/ Max Reitz
2021-09-01 13:34 ` [PATCH v3 0/4] " Vladimir Sementsov-Ogievskiy
2021-09-01 14:33 ` Hanna Reitz
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