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[Qemu-devel] [PATCH v2 6/7] qemu-iotests: add initial tests for live blo
From: |
Jeff Cody |
Subject: |
[Qemu-devel] [PATCH v2 6/7] qemu-iotests: add initial tests for live block commit |
Date: |
Tue, 25 Sep 2012 12:29:38 -0400 |
Derived from the streaming test cases (030), this adds the
following tests:
1. For the following image chain, commit [mid] into [backing],
and use qemu-io to verify [backing] has its original data, as
well as the data from [mid]
[backing] <-- [mid] <-- [test]
2. Verifies that 'block-commit' with the 'speed' parameter sets the
speed parameter, as reported by 'query-block-jobs'
3. Verifies that a bogus 'device' parameter to 'block-commit'
results in error
Signed-off-by: Jeff Cody <address@hidden>
---
tests/qemu-iotests/040 | 142 +++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/040.out | 5 ++
tests/qemu-iotests/group | 1 +
3 files changed, 148 insertions(+)
create mode 100755 tests/qemu-iotests/040
create mode 100644 tests/qemu-iotests/040.out
diff --git a/tests/qemu-iotests/040 b/tests/qemu-iotests/040
new file mode 100755
index 0000000..6b89a41
--- /dev/null
+++ b/tests/qemu-iotests/040
@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+#
+# Tests for image block commit.
+#
+# Copyright (C) 2012 IBM, Corp.
+# Copyright (C) 2012 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# Test for live block commit
+# Derived from Image Streaming Test 030
+
+import time
+import os
+import iotests
+from iotests import qemu_img, qemu_io
+import struct
+
+backing_img = os.path.join(iotests.test_dir, 'backing.img')
+mid_img = os.path.join(iotests.test_dir, 'mid.img')
+test_img = os.path.join(iotests.test_dir, 'test.img')
+
+class ImageCommitTestCase(iotests.QMPTestCase):
+ '''Abstract base class for image commit test cases'''
+
+ def assert_no_active_commit(self):
+ result = self.vm.qmp('query-block-jobs')
+ self.assert_qmp(result, 'return', [])
+
+ def cancel_and_wait(self, drive='drive0'):
+ '''Cancel a block job and wait for it to finish'''
+ result = self.vm.qmp('block-job-cancel', device=drive)
+ self.assert_qmp(result, 'return', {})
+
+ cancelled = False
+ while not cancelled:
+ for event in self.vm.get_qmp_events(wait=True):
+ if event['event'] == 'BLOCK_JOB_CANCELLED':
+ self.assert_qmp(event, 'data/type', 'commit')
+ self.assert_qmp(event, 'data/device', drive)
+ cancelled = True
+
+ self.assert_no_active_commit()
+
+ def create_image(self, name, size):
+ file = open(name, 'w')
+ i = 0
+ while i < size:
+ sector = struct.pack('>l504xl', i / 512, i / 512)
+ file.write(sector)
+ i = i + 512
+ file.close()
+
+
+class TestSingleDrive(ImageCommitTestCase):
+ image_len = 1 * 1024 * 1024
+ test_len = 1 * 1024 * 256
+
+ def setUp(self):
+ self.create_image(backing_img, TestSingleDrive.image_len)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' %
backing_img, mid_img)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' %
mid_img, test_img)
+ qemu_io('-c', 'write -P 0xab 0 524288', backing_img)
+ qemu_io('-c', 'write -P 0xef 524288 524288', mid_img)
+ self.vm = iotests.VM().add_drive(test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ self.vm.shutdown()
+ os.remove(test_img)
+ os.remove(mid_img)
+ os.remove(backing_img)
+
+ def test_commit(self):
+ self.assert_no_active_commit()
+ result = self.vm.qmp('block-commit', device='drive0')
+ self.assert_qmp(result, 'return', {})
+
+ completed = False
+ while not completed:
+ for event in self.vm.get_qmp_events(wait=True):
+ if event['event'] == 'BLOCK_JOB_COMPLETED':
+ self.assert_qmp(event, 'data/type', 'commit')
+ self.assert_qmp(event, 'data/device', 'drive0')
+ self.assert_qmp(event, 'data/offset', self.image_len)
+ self.assert_qmp(event, 'data/len', self.image_len)
+ completed = True
+
+ self.assert_no_active_commit()
+ self.vm.shutdown()
+
+ self.assertEqual(-1, qemu_io('-c', 'read -P 0xab 0 524288',
backing_img).find("verification failed"))
+ self.assertEqual(-1, qemu_io('-c', 'read -P 0xef 524288 524288',
backing_img).find("verification failed"))
+
+ def test_device_not_found(self):
+ result = self.vm.qmp('block-commit', device='nonexistent')
+ self.assert_qmp(result, 'error/class', 'DeviceNotFound')
+
+
+class TestSetSpeed(ImageCommitTestCase):
+ image_len = 80 * 1024 * 1024 # MB
+
+ def setUp(self):
+ qemu_img('create', backing_img, str(TestSetSpeed.image_len))
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' %
backing_img, mid_img)
+ qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' %
mid_img, test_img)
+ self.vm = iotests.VM().add_drive(test_img)
+ self.vm.launch()
+
+ def tearDown(self):
+ self.vm.shutdown()
+ os.remove(test_img)
+ os.remove(mid_img)
+ os.remove(backing_img)
+
+ def test_set_speed(self):
+ self.assert_no_active_commit()
+
+ result = self.vm.qmp('block-commit', device='drive0', top=mid_img,
speed=1024 * 1024)
+ self.assert_qmp(result, 'return', {})
+
+ # Ensure the speed we set was accepted
+ result = self.vm.qmp('query-block-jobs')
+ self.assert_qmp(result, 'return[0]/device', 'drive0')
+ self.assert_qmp(result, 'return[0]/speed', 1024 * 1024)
+
+ self.cancel_and_wait()
+
+
+if __name__ == '__main__':
+ iotests.main(supported_fmts=['qcow2', 'qed'])
diff --git a/tests/qemu-iotests/040.out b/tests/qemu-iotests/040.out
new file mode 100644
index 0000000..8d7e996
--- /dev/null
+++ b/tests/qemu-iotests/040.out
@@ -0,0 +1,5 @@
+...
+----------------------------------------------------------------------
+Ran 3 tests
+
+OK
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index ebb5ca4..4b54fa6 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -46,3 +46,4 @@
037 rw auto backing
038 rw auto backing
039 rw auto
+040 rw auto
--
1.7.11.4