On Thu, Nov 16, 2017 at 07:54:58PM +0300, Anton Nefedov wrote:
Signed-off-by: Anton Nefedov <anton.nefe...@virtuozzo.com>
---
tests/qemu-iotests/030 | 66 +++++++++++++++++++++++++++++++++++++++++++++-
tests/qemu-iotests/030.out | 4 +--
2 files changed, 67 insertions(+), 3 deletions(-)
diff --git a/tests/qemu-iotests/030 b/tests/qemu-iotests/030
index 457984b..831d6f3 100755
--- a/tests/qemu-iotests/030
+++ b/tests/qemu-iotests/030
@@ -21,7 +21,7 @@
import time
import os
import iotests
-from iotests import qemu_img, qemu_io
+from iotests import qemu_img, qemu_img_pipe, qemu_io
backing_img = os.path.join(iotests.test_dir, 'backing.img')
mid_img = os.path.join(iotests.test_dir, 'mid.img')
@@ -804,5 +804,69 @@ class TestSetSpeed(iotests.QMPTestCase):
self.cancel_and_wait(resume=True)
+class TestCompressed(iotests.QMPTestCase):
+ supported_fmts = ['qcow2']
+ cluster_size = 64 * 1024;
+ image_len = 1 * 1024 * 1024;
Please drop the unnecessary semicolons
+
+ def setUp(self):
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d' %
TestCompressed.cluster_size, backing_img, str(TestCompressed.image_len))
+ qemu_io('-c', 'write -P 1 0 ' + str(TestCompressed.image_len),
backing_img)
+ qemu_img('create', '-f', iotests.imgfmt, '-o',
'backing_file=%s,cluster_size=%d' % (backing_img, TestCompressed.cluster_size),
test_img)
+
+ # write '3' in every 3rd cluster
+ step = 3
+ for off in range(0, TestCompressed.image_len,
TestCompressed.cluster_size * step):
+ qemu_io('-c', 'write -P %d %d %d' %
+ (step, off, TestCompressed.cluster_size), test_img)
+
+ self.vm = iotests.VM().add_drive(test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ os.remove(test_img)
+ os.remove(backing_img)
+
+ def _first_divider(self, x, divs):
"Divisor" or "factor":
https://en.wikipedia.org/wiki/Divisor
+ return divs[0] if not x%divs[0] else self._first_divider(x, divs[1:])
An alternative that I find easier to read than conditional expressions:
for divisor in divs:
if x % divisor == 0:
return divisor
raise ValueError('No suitable divisor found')
+
+ def test_compressed(self):
+ self.assert_no_active_block_jobs()
+
+ result = self.vm.qmp('block-stream', device='drive0', compress=True)
+ if iotests.imgfmt not in TestCompressed.supported_fmts:
+ self.assert_qmp(
+ result, 'error/desc',
+ 'Compression is not supported for this drive drive0')
+ return
+ self.assert_qmp(result, 'return', {})
+
+ # write '4' in every 4th cluster
+ step = 4
+ for off in range(0, TestCompressed.image_len,
TestCompressed.cluster_size * step):
+ result = self.vm.qmp('human-monitor-command',
+ command_line=
+ 'qemu-io drive0 "write -P %d %d %d"' %
+ (step, off, TestCompressed.cluster_size))
+ self.assert_qmp(result, 'return', "")
+
+ self.wait_until_completed()
+ self.assert_no_active_block_jobs()
+
+ self.vm.shutdown()
It is safe to call self.vm.shutdown() multiple times. Please call it
from tearDown() too so the QEMU process is cleaned up on failure.
