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bh=01Pp/2cvfi1jYvxDkdl8bLU++4JhKcpZOA1HDPfsfbY=; b=MYh1jqWvlPeBLte/g3q52+cytZ5KWfCSMfkEDc3XJZpGySI5TdDyi/SOOjDS3//hVWep6Y il44ds6cWQLOjT/CkPiAgY1ViaXoNeXdMMDldz7fl1+01j4UcaRJsZd0XiCNkUXeHZyBu9 Ej9MfTULcFMHJjkoe/aGpg7eLrslb2c= X-MC-Unique: T1zOUSGzOuGTb0werdVA7Q-1 From: Max Reitz To: qemu-block@nongnu.org Subject: [PATCH v8 41/43] iotests: Add filter mirror test cases Date: Tue, 1 Sep 2020 16:34:22 +0200 Message-Id: <20200901143424.884735-42-mreitz@redhat.com> In-Reply-To: <20200901143424.884735-1-mreitz@redhat.com> References: <20200901143424.884735-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mreitz@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.120; envelope-from=mreitz@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/01 05:11:36 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Andrey Shinkevich , Vladimir Sementsov-Ogievskiy , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This patch adds some test cases how mirroring relates to filters. One of them tests what happens when you mirror off a filtered COW node, two others use the mirror filter node as basically our only example of an implicitly created filter node so far (besides the commit filter). Signed-off-by: Max Reitz Reviewed-by: Andrey Shinkevich Reviewed-by: Kevin Wolf --- tests/qemu-iotests/041 | 146 ++++++++++++++++++++++++++++++++++++- tests/qemu-iotests/041.out | 4 +- 2 files changed, 147 insertions(+), 3 deletions(-) diff --git a/tests/qemu-iotests/041 b/tests/qemu-iotests/041 index f0a7bf6650..cdbef3ba20 100755 --- a/tests/qemu-iotests/041 +++ b/tests/qemu-iotests/041 @@ -21,8 +21,9 @@ import time import os import re +import json import iotests -from iotests import qemu_img, qemu_io +from iotests import qemu_img, qemu_img_pipe, qemu_io =20 backing_img =3D os.path.join(iotests.test_dir, 'backing.img') target_backing_img =3D os.path.join(iotests.test_dir, 'target-backing.img') @@ -1288,6 +1289,149 @@ class TestReplaces(iotests.QMPTestCase): =20 self.vm.assert_block_path('filter0', '/file', 'target') =20 +# Tests for mirror with filters (and how the mirror filter behaves, as +# an example for an implicit filter) +class TestFilters(iotests.QMPTestCase): + def setUp(self): + qemu_img('create', '-f', iotests.imgfmt, backing_img, '1M') + qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img, test_i= mg) + qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img, target= _img) + + qemu_io('-c', 'write -P 1 0 512k', backing_img) + qemu_io('-c', 'write -P 2 512k 512k', test_img) + + self.vm =3D iotests.VM() + self.vm.launch() + + result =3D self.vm.qmp('blockdev-add', **{ + 'node-name': 'target', + 'driver': iotests.imgfmt, + 'file': { + 'driver': 'file', + 'filename': target_img + }, + 'backing': None + }) + self.assert_qmp(result, 'return', {}) + + self.filterless_chain =3D { + 'node-name': 'source', + 'driver': iotests.imgfmt, + 'file': { + 'driver': 'file', + 'filename': test_img + }, + 'backing': { + 'node-name': 'backing', + 'driver': iotests.imgfmt, + 'file': { + 'driver': 'file', + 'filename': backing_img + } + } + } + + def tearDown(self): + self.vm.shutdown() + + os.remove(test_img) + os.remove(target_img) + os.remove(backing_img) + + def test_cor(self): + result =3D self.vm.qmp('blockdev-add', **{ + 'node-name': 'filter', + 'driver': 'copy-on-read', + 'file': self.filterless_chain + }) + self.assert_qmp(result, 'return', {}) + + result =3D self.vm.qmp('blockdev-mirror', + job_id=3D'mirror', + device=3D'filter', + target=3D'target', + sync=3D'top') + self.assert_qmp(result, 'return', {}) + + self.complete_and_wait('mirror') + + self.vm.qmp('blockdev-del', node_name=3D'target') + + target_map =3D qemu_img_pipe('map', '--output=3Djson', target_img) + target_map =3D json.loads(target_map) + + assert target_map[0]['start'] =3D=3D 0 + assert target_map[0]['length'] =3D=3D 512 * 1024 + assert target_map[0]['depth'] =3D=3D 1 + + assert target_map[1]['start'] =3D=3D 512 * 1024 + assert target_map[1]['length'] =3D=3D 512 * 1024 + assert target_map[1]['depth'] =3D=3D 0 + + def test_implicit_mirror_filter(self): + result =3D self.vm.qmp('blockdev-add', **self.filterless_chain) + self.assert_qmp(result, 'return', {}) + + # We need this so we can query from above the mirror node + result =3D self.vm.qmp('device_add', + driver=3D'virtio-blk', + id=3D'virtio', + bus=3D'pci.0', + drive=3D'source') + self.assert_qmp(result, 'return', {}) + + result =3D self.vm.qmp('blockdev-mirror', + job_id=3D'mirror', + device=3D'source', + target=3D'target', + sync=3D'top') + self.assert_qmp(result, 'return', {}) + + # The mirror filter is now an implicit node, so it should be + # invisible when querying the backing chain + device_info =3D self.vm.qmp('query-block')['return'][0] + assert device_info['qdev'] =3D=3D '/machine/peripheral/virtio/virt= io-backend' + + assert device_info['inserted']['node-name'] =3D=3D 'source' + + image_info =3D device_info['inserted']['image'] + assert image_info['filename'] =3D=3D test_img + assert image_info['backing-image']['filename'] =3D=3D backing_img + + self.complete_and_wait('mirror') + + def test_explicit_mirror_filter(self): + # Same test as above, but this time we give the mirror filter + # a node-name so it will not be invisible + result =3D self.vm.qmp('blockdev-add', **self.filterless_chain) + self.assert_qmp(result, 'return', {}) + + # We need this so we can query from above the mirror node + result =3D self.vm.qmp('device_add', + driver=3D'virtio-blk', + id=3D'virtio', + bus=3D'pci.0', + drive=3D'source') + self.assert_qmp(result, 'return', {}) + + result =3D self.vm.qmp('blockdev-mirror', + job_id=3D'mirror', + device=3D'source', + target=3D'target', + sync=3D'top', + filter_node_name=3D'mirror-filter') + self.assert_qmp(result, 'return', {}) + + # With a node-name given to it, the mirror filter should now + # be visible + device_info =3D self.vm.qmp('query-block')['return'][0] + assert device_info['qdev'] =3D=3D '/machine/peripheral/virtio/virt= io-backend' + + assert device_info['inserted']['node-name'] =3D=3D 'mirror-filter' + + self.complete_and_wait('mirror') + + if __name__ =3D=3D '__main__': iotests.main(supported_fmts=3D['qcow2', 'qed'], supported_protocols=3D['file'], diff --git a/tests/qemu-iotests/041.out b/tests/qemu-iotests/041.out index 53abe11d73..46651953e8 100644 --- a/tests/qemu-iotests/041.out +++ b/tests/qemu-iotests/041.out @@ -1,5 +1,5 @@ -..........................................................................= .............................. +..........................................................................= ................................. ---------------------------------------------------------------------- -Ran 104 tests +Ran 107 tests =20 OK --=20 2.26.2