Merge "Adds Hyper-V support in nova-compute (with new network_info model), including unit tests"

179 files changed, 1206 insertions, 0 deletions

diff --git a/nova/tests/hyperv/__init__.py b/nova/tests/hyperv/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/nova/tests/hyperv/__init__.py
diff --git a/nova/tests/hyperv/basetestcase.py b/nova/tests/hyperv/basetestcase.py
new file mode 100644
index 000000000..318cf2e28
--- /dev/null
+++ b/nova/tests/hyperv/basetestcase.py
@@ -0,0 +1,96 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+TestCase for MockProxy based tests and related classes.
+"""
+
+import gzip
+import os
+import pickle
+
+from nova import test
+from nova.tests.hyperv import mockproxy
+
+gen_test_mocks_key = 'NOVA_GENERATE_TEST_MOCKS'
+
+
+class BaseTestCase(test.TestCase):
+    """TestCase for MockProxy based tests."""
+
+    def run(self, result=None):
+        self._currentResult = result
+        super(BaseTestCase, self).run(result)
+
+    def setUp(self):
+        super(BaseTestCase, self).setUp()
+        self._mps = {}
+
+    def tearDown(self):
+        super(BaseTestCase, self).tearDown()
+
+        has_errors = len([test for (test, msgs) in self._currentResult.errors
+            if test.id() == self.id()]) > 0
+        failed = len([test for (test, msgs) in self._currentResult.failures
+            if test.id() == self.id()]) > 0
+
+        if not has_errors and not failed:
+            self._save_mock_proxies()
+
+    def _save_mock(self, name, mock):
+        path = self._get_stub_file_path(self.id(), name)
+        pickle.dump(mock, gzip.open(path, 'wb'))
+
+    def _get_stub_file_path(self, test_name, mock_name):
+        # test naming differs between platforms
+        prefix = 'nova.tests.'
+        if test_name.startswith(prefix):
+            test_name = test_name[len(prefix):]
+        file_name = '{0}_{1}.p.gz'.format(test_name, mock_name)
+        return os.path.join(os.path.dirname(mockproxy.__file__),
+                "stubs", file_name)
+
+    def _load_mock(self, name):
+        path = self._get_stub_file_path(self.id(), name)
+        if os.path.exists(path):
+            return pickle.load(gzip.open(path, 'rb'))
+        else:
+            return None
+
+    def _load_mock_or_create_proxy(self, module_name):
+        m = None
+        if not gen_test_mocks_key in os.environ or \
+                os.environ[gen_test_mocks_key].lower() \
+                    not in ['true', 'yes', '1']:
+            m = self._load_mock(module_name)
+        else:
+            module = __import__(module_name)
+            m = mockproxy.MockProxy(module)
+            self._mps[module_name] = m
+        return m
+
+    def _inject_mocks_in_modules(self, objects_to_mock, modules_to_test):
+        for module_name in objects_to_mock:
+            mp = self._load_mock_or_create_proxy(module_name)
+            for mt in modules_to_test:
+                module_local_name = module_name.split('.')[-1]
+                setattr(mt, module_local_name, mp)
+
+    def _save_mock_proxies(self):
+        for name, mp in self._mps.items():
+            m = mp.get_mock()
+            if m.has_values():
+                self._save_mock(name, m)
diff --git a/nova/tests/hyperv/db_fakes.py b/nova/tests/hyperv/db_fakes.py
new file mode 100644
index 000000000..9f5572fd1
--- /dev/null
+++ b/nova/tests/hyperv/db_fakes.py
@@ -0,0 +1,166 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Stubouts, mocks and fixtures for the test suite
+"""
+
+import time
+
+from nova.compute import task_states
+from nova.compute import vm_states
+from nova import db
+from nova import utils
+
+
+def get_fake_instance_data(name, project_id, user_id):
+    return {'name': name,
+              'id': 1,
+              'uuid': utils.gen_uuid(),
+              'project_id': project_id,
+              'user_id': user_id,
+              'image_ref': "1",
+              'kernel_id': "1",
+              'ramdisk_id': "1",
+              'mac_address': "de:ad:be:ef:be:ef",
+              'instance_type': 'm1.tiny',
+              }
+
+
+def get_fake_image_data(project_id, user_id):
+    return {'name': 'image1',
+              'id': 1,
+              'project_id': project_id,
+              'user_id': user_id,
+              'image_ref': "1",
+              'kernel_id': "1",
+              'ramdisk_id': "1",
+              'mac_address': "de:ad:be:ef:be:ef",
+              'instance_type': 'm1.tiny',
+              }
+
+
+def get_fake_volume_info_data(target_portal, volume_id):
+    return {
+        'driver_volume_type': 'iscsi',
+        'data': {
+            'volume_id': 1,
+            'target_iqn': 'iqn.2010-10.org.openstack:volume-' + volume_id,
+            'target_portal': target_portal,
+            'target_lun': 1,
+            'auth_method': 'CHAP',
+            'auth_method': 'fake',
+            'auth_method': 'fake',
+        }
+}
+
+
+def get_fake_block_device_info(target_portal, volume_id):
+    return {
+            'block_device_mapping': [{'connection_info': {
+                'driver_volume_type': 'iscsi',
+                'data': {'target_lun': 1,
+                         'volume_id': volume_id,
+                         'target_iqn': 'iqn.2010-10.org.openstack:volume-' +
+                            volume_id,
+                         'target_portal': target_portal,
+                         'target_discovered': False}},
+                'mount_device': 'vda',
+                'delete_on_termination': False}],
+            'root_device_name': None,
+            'ephemerals': [],
+            'swap': None
+    }
+
+
+def stub_out_db_instance_api(stubs):
+    """Stubs out the db API for creating Instances."""
+
+    INSTANCE_TYPES = {
+        'm1.tiny': dict(memory_mb=512, vcpus=1, root_gb=0, flavorid=1),
+        'm1.small': dict(memory_mb=2048, vcpus=1, root_gb=20, flavorid=2),
+        'm1.medium':
+            dict(memory_mb=4096, vcpus=2, root_gb=40, flavorid=3),
+        'm1.large': dict(memory_mb=8192, vcpus=4, root_gb=80, flavorid=4),
+        'm1.xlarge':
+            dict(memory_mb=16384, vcpus=8, root_gb=160, flavorid=5)}
+
+    class FakeModel(object):
+        """Stubs out for model."""
+
+        def __init__(self, values):
+            self.values = values
+
+        def __getattr__(self, name):
+            return self.values[name]
+
+        def __getitem__(self, key):
+            if key in self.values:
+                return self.values[key]
+            else:
+                raise NotImplementedError()
+
+    def fake_instance_create(context, values):
+        """Stubs out the db.instance_create method."""
+
+        if 'instance_type' not in values:
+            return
+
+        type_data = INSTANCE_TYPES[values['instance_type']]
+
+        base_options = {
+            'name': values['name'],
+            'id': values['id'],
+            'uuid': utils.gen_uuid(),
+            'reservation_id': utils.generate_uid('r'),
+            'image_ref': values['image_ref'],
+            'kernel_id': values['kernel_id'],
+            'ramdisk_id': values['ramdisk_id'],
+            'vm_state': vm_states.BUILDING,
+            'task_state': task_states.SCHEDULING,
+            'user_id': values['user_id'],
+            'project_id': values['project_id'],
+            'launch_time': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime()),
+            'instance_type': values['instance_type'],
+            'memory_mb': type_data['memory_mb'],
+            'vcpus': type_data['vcpus'],
+            'mac_addresses': [{'address': values['mac_address']}],
+            'root_gb': type_data['root_gb'],
+            }
+        return FakeModel(base_options)
+
+    def fake_network_get_by_instance(context, instance_id):
+        """Stubs out the db.network_get_by_instance method."""
+
+        fields = {
+            'bridge': 'vmnet0',
+            'netmask': '255.255.255.0',
+            'gateway': '10.10.10.1',
+            'broadcast': '10.10.10.255',
+            'dns1': 'fake',
+            'vlan': 100}
+        return FakeModel(fields)
+
+    def fake_instance_type_get_all(context, inactive=0, filters=None):
+        return INSTANCE_TYPES.values()
+
+    def fake_instance_type_get_by_name(context, name):
+        return INSTANCE_TYPES[name]
+
+    stubs.Set(db, 'instance_create', fake_instance_create)
+    stubs.Set(db, 'network_get_by_instance', fake_network_get_by_instance)
+    stubs.Set(db, 'instance_type_get_all', fake_instance_type_get_all)
+    stubs.Set(db, 'instance_type_get_by_name', fake_instance_type_get_by_name)
diff --git a/nova/tests/hyperv/hypervutils.py b/nova/tests/hyperv/hypervutils.py
new file mode 100644
index 000000000..7cf9f32fe
--- /dev/null
+++ b/nova/tests/hyperv/hypervutils.py
@@ -0,0 +1,245 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Hyper-V classes to be used in testing.
+"""
+
+import sys
+import time
+
+from nova import exception
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import volumeutils
+from xml.etree import ElementTree
+
+# Check needed for unit testing on Unix
+if sys.platform == 'win32':
+    import wmi
+
+
+class HyperVUtils(object):
+    def __init__(self):
+        self.__conn = None
+        self.__conn_v2 = None
+        self.__conn_cimv2 = None
+        self.__conn_wmi = None
+        self._volumeutils = volumeutils.VolumeUtils()
+
+    @property
+    def _conn(self):
+        if self.__conn is None:
+            self.__conn = wmi.WMI(moniker='//./root/virtualization')
+        return self.__conn
+
+    @property
+    def _conn_v2(self):
+        if self.__conn_v2 is None:
+            self.__conn_v2 = wmi.WMI(moniker='//./root/virtualization/v2')
+        return self.__conn_v2
+
+    @property
+    def _conn_cimv2(self):
+        if self.__conn_cimv2 is None:
+            self.__conn_cimv2 = wmi.WMI(moniker='//./root/cimv2')
+        return self.__conn_cimv2
+
+    @property
+    def _conn_wmi(self):
+        if self.__conn_wmi is None:
+            self.__conn_wmi = wmi.WMI(moniker='//./root/wmi')
+        return self.__conn_wmi
+
+    def create_vhd(self, path):
+        image_service = self._conn.query(
+            "Select * from Msvm_ImageManagementService")[0]
+        (job, ret_val) = image_service.CreateDynamicVirtualHardDisk(
+                Path=path, MaxInternalSize=3 * 1024 * 1024)
+
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job)
+        else:
+            success = (ret_val == 0)
+        if not success:
+            raise Exception('Failed to create Dynamic disk %s with error %d'
+                    % (path, ret_val))
+
+    def _check_job_status(self, jobpath):
+        """Poll WMI job state for completion"""
+        job_wmi_path = jobpath.replace('\\', '/')
+        job = wmi.WMI(moniker=job_wmi_path)
+
+        while job.JobState == constants.WMI_JOB_STATE_RUNNING:
+            time.sleep(0.1)
+            job = wmi.WMI(moniker=job_wmi_path)
+        return job.JobState == constants.WMI_JOB_STATE_COMPLETED
+
+    def _get_vm(self, vm_name, conn=None):
+        if conn is None:
+            conn = self._conn
+        vml = conn.Msvm_ComputerSystem(ElementName=vm_name)
+        if not len(vml):
+            raise exception.InstanceNotFound(instance=vm_name)
+        return vml[0]
+
+    def remote_vm_exists(self, server, vm_name):
+        conn = wmi.WMI(moniker='//' + server + '/root/virtualization')
+        return self._vm_exists(conn, vm_name)
+
+    def vm_exists(self, vm_name):
+        return self._vm_exists(self._conn, vm_name)
+
+    def _vm_exists(self, conn, vm_name):
+        return len(conn.Msvm_ComputerSystem(ElementName=vm_name)) > 0
+
+    def _get_vm_summary(self, vm_name):
+        vm = self._get_vm(vm_name)
+        vs_man_svc = self._conn.Msvm_VirtualSystemManagementService()[0]
+        vmsettings = vm.associators(
+                       wmi_association_class='Msvm_SettingsDefineState',
+                       wmi_result_class='Msvm_VirtualSystemSettingData')
+        settings_paths = [v.path_() for v in vmsettings]
+        return vs_man_svc.GetSummaryInformation([100, 105],
+            settings_paths)[1][0]
+
+    def get_vm_uptime(self, vm_name):
+        return self._get_vm_summary(vm_name).UpTime
+
+    def get_vm_state(self, vm_name):
+        return self._get_vm_summary(vm_name).EnabledState
+
+    def set_vm_state(self, vm_name, req_state):
+        self._set_vm_state(self._conn, vm_name, req_state)
+
+    def _set_vm_state(self, conn, vm_name, req_state):
+        vm = self._get_vm(vm_name, conn)
+        (job, ret_val) = vm.RequestStateChange(req_state)
+
+        success = False
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job)
+        elif ret_val == 0:
+            success = True
+        elif ret_val == 32775:
+            #Invalid state for current operation. Typically means it is
+            #already in the state requested
+            success = True
+        if not success:
+            raise Exception(_("Failed to change vm state of %(vm_name)s"
+                    " to %(req_state)s") % locals())
+
+    def get_vm_disks(self, vm_name):
+        return self._get_vm_disks(self._conn, vm_name)
+
+    def _get_vm_disks(self, conn, vm_name):
+        vm = self._get_vm(vm_name, conn)
+        vmsettings = vm.associators(
+            wmi_result_class='Msvm_VirtualSystemSettingData')
+        rasds = vmsettings[0].associators(
+            wmi_result_class='MSVM_ResourceAllocationSettingData')
+
+        disks = [r for r in rasds
+            if r.ResourceSubType == 'Microsoft Virtual Hard Disk']
+        disk_files = []
+        for disk in disks:
+            disk_files.extend([c for c in disk.Connection])
+
+        volumes = [r for r in rasds
+            if r.ResourceSubType == 'Microsoft Physical Disk Drive']
+        volume_drives = []
+        for volume in volumes:
+            hostResources = volume.HostResource
+            drive_path = hostResources[0]
+            volume_drives.append(drive_path)
+
+        return (disk_files, volume_drives)
+
+    def remove_remote_vm(self, server, vm_name):
+        conn = wmi.WMI(moniker='//' + server + '/root/virtualization')
+        conn_cimv2 = wmi.WMI(moniker='//' + server + '/root/cimv2')
+        self._remove_vm(vm_name, conn, conn_cimv2)
+
+    def remove_vm(self, vm_name):
+        self._remove_vm(vm_name, self._conn, self._conn_cimv2)
+
+    def _remove_vm(self, vm_name, conn, conn_cimv2):
+        vm = self._get_vm(vm_name, conn)
+        vs_man_svc = conn.Msvm_VirtualSystemManagementService()[0]
+        #Stop the VM first.
+        self._set_vm_state(conn, vm_name, 3)
+
+        (disk_files, volume_drives) = self._get_vm_disks(conn, vm_name)
+
+        (job, ret_val) = vs_man_svc.DestroyVirtualSystem(vm.path_())
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job)
+        elif ret_val == 0:
+            success = True
+        if not success:
+            raise Exception(_('Failed to destroy vm %s') % vm_name)
+
+        #Delete associated vhd disk files.
+        for disk in disk_files:
+            vhd_file = conn_cimv2.query(
+            "Select * from CIM_DataFile where Name = '" +
+                disk.replace("'", "''") + "'")[0]
+            vhd_file.Delete()
+
+    def _get_target_iqn(self, volume_id):
+        return 'iqn.2010-10.org.openstack:volume-' + volume_id
+
+    def logout_iscsi_volume_sessions(self, volume_id):
+        target_iqn = self._get_target_iqn(volume_id)
+        self._volumeutils.logout_storage_target(self._conn_wmi, target_iqn)
+
+    def iscsi_volume_sessions_exist(self, volume_id):
+        target_iqn = self._get_target_iqn(volume_id)
+        return len(self._conn_wmi.query(
+                    "SELECT * FROM MSiSCSIInitiator_SessionClass \
+                    WHERE TargetName='" + target_iqn + "'")) > 0
+
+    def get_vm_count(self):
+        return len(self._conn.query(
+            "Select * from Msvm_ComputerSystem where Description "
+            "<> 'Microsoft Hosting Computer System'"))
+
+    def get_vm_snapshots_count(self, vm_name):
+        return len(self._conn.query(
+                "Select * from Msvm_VirtualSystemSettingData where \
+                SettingType = 5 and SystemName = '" + vm_name + "'"))
+
+    def get_vhd_parent_path(self, vhd_path):
+
+        image_man_svc = self._conn.Msvm_ImageManagementService()[0]
+
+        (vhd_info, job_path, ret_val) = \
+            image_man_svc.GetVirtualHardDiskInfo(vhd_path)
+        if ret_val == constants.WMI_JOB_STATUS_STARTED:
+            success = self._check_job_status(job_path)
+        else:
+            success = (ret_val == 0)
+        if not success:
+                raise Exception(_("Failed to get info for disk %s") %
+                    (vhd_path))
+
+        base_disk_path = None
+        et = ElementTree.fromstring(vhd_info)
+        for item in et.findall("PROPERTY"):
+            if item.attrib["NAME"] == "ParentPath":
+                base_disk_path = item.find("VALUE").text
+                break
+
+        return base_disk_path
diff --git a/nova/tests/hyperv/mockproxy.py b/nova/tests/hyperv/mockproxy.py
new file mode 100644
index 000000000..ff04ea709
--- /dev/null
+++ b/nova/tests/hyperv/mockproxy.py
@@ -0,0 +1,234 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+
+"""
+Classes for dynamic generation of mock objects.
+"""
+
+import inspect
+
+
+def serialize_obj(obj):
+    if isinstance(obj, float):
+        val = str(round(obj, 10))
+    elif isinstance(obj, dict):
+        d = {}
+        for k1, v1 in obj.items():
+            d[k1] = serialize_obj(v1)
+        val = str(d)
+    elif isinstance(obj, list):
+        l1 = []
+        for i1 in obj:
+            l1.append(serialize_obj(i1))
+        val = str(l1)
+    elif isinstance(obj, tuple):
+        l1 = ()
+        for i1 in obj:
+            l1 = l1 + (serialize_obj(i1),)
+        val = str(l1)
+    else:
+        val = str(obj)
+    return val
+
+
+def serialize_args(*args, **kwargs):
+    """Workaround for float string conversion issues in Python 2.6"""
+    return serialize_obj((args, kwargs))
+
+
+class Mock(object):
+    def _get_next_value(self, name):
+        c = self._access_count.get(name)
+        if c is None:
+            c = 0
+        else:
+            c = c + 1
+        self._access_count[name] = c
+        return self._values[name][c]
+
+    def _get_next_ret_value(self, name, params):
+        d = self._access_count.get(name)
+        if d is None:
+            d = {}
+            self._access_count[name] = d
+        c = d.get(params)
+        if c is None:
+            c = 0
+        else:
+            c = c + 1
+        d[params] = c
+        return self._values[name][params][c]
+
+    def __init__(self, values):
+        self._values = values
+        self._access_count = {}
+
+    def has_values(self):
+        return len(self._values) > 0
+
+    def __getattr__(self, name):
+        if name.startswith('__') and name.endswith('__'):
+            return object.__getattribute__(self, name)
+        else:
+            if isinstance(self._values[name], dict):
+                def newfunc(*args, **kwargs):
+                    params = serialize_args(args, kwargs)
+                    return self._get_next_ret_value(name, params)
+                return newfunc
+            else:
+                return self._get_next_value(name)
+
+    def __str__(self):
+        return self._get_next_value('__str__')
+
+    def __iter__(self):
+        return getattr(self._get_next_value('__iter__'), '__iter__')()
+
+    def __len__(self):
+        return self._get_next_value('__len__')
+
+    def __getitem__(self, key):
+        return self._get_next_ret_value('__getitem__', str(key))
+
+    def __call__(self, *args, **kwargs):
+        params = serialize_args(args, kwargs)
+        return self._get_next_ret_value('__call__', params)
+
+
+class MockProxy(object):
+    def __init__(self, wrapped):
+        self._wrapped = wrapped
+        self._recorded_values = {}
+
+    def _get_proxy_object(self, obj):
+        if hasattr(obj, '__dict__') or isinstance(obj, tuple) or \
+            isinstance(obj, list) or isinstance(obj, dict):
+            p = MockProxy(obj)
+        else:
+            p = obj
+        return p
+
+    def __getattr__(self, name):
+        if name in ['_wrapped']:
+            return object.__getattribute__(self, name)
+        else:
+            attr = getattr(self._wrapped, name)
+            if inspect.isfunction(attr) or inspect.ismethod(attr) or \
+                inspect.isbuiltin(attr):
+                def newfunc(*args, **kwargs):
+                    result = attr(*args, **kwargs)
+                    p = self._get_proxy_object(result)
+                    params = serialize_args(args, kwargs)
+                    self._add_recorded_ret_value(name, params, p)
+                    return p
+                return newfunc
+            elif hasattr(attr, '__dict__') or (hasattr(attr, '__getitem__')
+                and not (isinstance(attr, str) or isinstance(attr, unicode))):
+                p = MockProxy(attr)
+            else:
+                p = attr
+            self._add_recorded_value(name, p)
+            return p
+
+    def __setattr__(self, name, value):
+        if name in ['_wrapped', '_recorded_values']:
+            object.__setattr__(self, name, value)
+        else:
+            setattr(self._wrapped, name, value)
+
+    def _add_recorded_ret_value(self, name, params, val):
+        d = self._recorded_values.get(name)
+        if d is None:
+            d = {}
+            self._recorded_values[name] = d
+        l = d.get(params)
+        if l is None:
+            l = []
+            d[params] = l
+        l.append(val)
+
+    def _add_recorded_value(self, name, val):
+        if not name in self._recorded_values:
+            self._recorded_values[name] = []
+        self._recorded_values[name].append(val)
+
+    def get_mock(self):
+        values = {}
+        for k, v in self._recorded_values.items():
+            if isinstance(v, dict):
+                d = {}
+                values[k] = d
+                for k1, v1 in v.items():
+                    l = []
+                    d[k1] = l
+                    for i1 in v1:
+                        if isinstance(i1, MockProxy):
+                            l.append(i1.get_mock())
+                        else:
+                            l.append(i1)
+            else:
+                l = []
+                values[k] = l
+                for i in v:
+                    if isinstance(i, MockProxy):
+                        l.append(i.get_mock())
+                    elif isinstance(i, dict):
+                        d = {}
+                        for k1, v1 in v.items():
+                            if isinstance(v1, MockProxy):
+                                d[k1] = v1.get_mock()
+                            else:
+                                d[k1] = v1
+                        l.append(d)
+                    elif isinstance(i, list):
+                        l1 = []
+                        for i1 in i:
+                            if isinstance(i1, MockProxy):
+                                l1.append(i1.get_mock())
+                            else:
+                                l1.append(i1)
+                        l.append(l1)
+                    else:
+                        l.append(i)
+        return Mock(values)
+
+    def __str__(self):
+        s = str(self._wrapped)
+        self._add_recorded_value('__str__', s)
+        return s
+
+    def __len__(self):
+        l = len(self._wrapped)
+        self._add_recorded_value('__len__', l)
+        return l
+
+    def __iter__(self):
+        it = []
+        for i in self._wrapped:
+            it.append(self._get_proxy_object(i))
+        self._add_recorded_value('__iter__', it)
+        return iter(it)
+
+    def __getitem__(self, key):
+        p = self._get_proxy_object(self._wrapped[key])
+        self._add_recorded_ret_value('__getitem__', str(key), p)
+        return p
+
+    def __call__(self, *args, **kwargs):
+        c = self._wrapped(*args, **kwargs)
+        p = self._get_proxy_object(c)
+        params = serialize_args(args, kwargs)
+        self._add_recorded_ret_value('__call__', params, p)
+        return p
diff --git a/nova/tests/hyperv/stubs/README.rst b/nova/tests/hyperv/stubs/README.rst
new file mode 100644
index 000000000..150fd3ad1
--- /dev/null
+++ b/nova/tests/hyperv/stubs/README.rst
@@ -0,0 +1,2 @@
+Files with extension p.gz are compressed pickle files containing serialized
+mocks used during unit testing
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
new file mode 100644
index 000000000..c65832c57
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
new file mode 100644
index 000000000..7076c4868
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
new file mode 100644
index 000000000..c251f9d6c
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
new file mode 100644
index 000000000..cac08e3d0
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
new file mode 100644
index 000000000..d6e624bb0
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz
new file mode 100644
index 000000000..bb18f7453
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz
new file mode 100644
index 000000000..a5f592a74
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz
new file mode 100644
index 000000000..4bebe0e72
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz
new file mode 100644
index 000000000..29a610f36
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz
new file mode 100644
index 000000000..ca92ece00
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_subprocess.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_subprocess.p.gz
new file mode 100644
index 000000000..58269455d
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_subprocess.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_time.p.gz
new file mode 100644
index 000000000..97cd7e62b
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_time.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_uuid.p.gz
new file mode 100644
index 000000000..708197430
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_wmi.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_wmi.p.gz
new file mode 100644
index 000000000..d5eb4d746
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_boot_from_volume_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_os.p.gz
new file mode 100644
index 000000000..d8c63d8ad
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_os.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_subprocess.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_subprocess.p.gz
new file mode 100644
index 000000000..d0b27d201
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_subprocess.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_time.p.gz
new file mode 100644
index 000000000..657379cec
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_time.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_uuid.p.gz
new file mode 100644
index 000000000..8bf58ef5c
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_wmi.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_wmi.p.gz
new file mode 100644
index 000000000..c20281811
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_detach_volume_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_os.p.gz
new file mode 100644
index 000000000..a198af844
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_os.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_time.p.gz
new file mode 100644
index 000000000..749eabe40
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_time.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_uuid.p.gz
new file mode 100644
index 000000000..c40e6f995
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_os.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_os.p.gz
new file mode 100644
index 000000000..c67dc9271
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_os.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_time.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_time.p.gz
new file mode 100644
index 000000000..0d671fc18
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_time.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_uuid.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_uuid.p.gz
new file mode 100644
index 000000000..66583beb1
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_wmi.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_wmi.p.gz
new file mode 100644
index 000000000..efdef819f
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_with_target_failure_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_wmi.p.gz b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_wmi.p.gz
new file mode 100644
index 000000000..5edd6f147
--- /dev/null
+++ b/nova/tests/hyperv/stubs/nova.tests.test_hypervapi.HyperVAPITestCase.test_live_migration_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
new file mode 100644
index 000000000..009a2d45d
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_shutil.p.gz
new file mode 100644
index 000000000..cb7818abb
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
new file mode 100644
index 000000000..d4005b336
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_subprocess.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
new file mode 100644
index 000000000..041d7314a
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
new file mode 100644
index 000000000..cab9cd580
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
new file mode 100644
index 000000000..0dfe439ca
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_shutil.p.gz
new file mode 100644
index 000000000..17f83545d
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz
new file mode 100644
index 000000000..1ecf26961
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_subprocess.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz
new file mode 100644
index 000000000..1c68ad11e
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz
new file mode 100644
index 000000000..7d4bae7a9
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz
new file mode 100644
index 000000000..c1d101887
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_with_target_connection_failure_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_attach_volume_wmi.p.gz
new file mode 100644
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diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_time.p.gz
new file mode 100644
index 000000000..0d15a012e
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_uuid.p.gz
new file mode 100644
index 000000000..b0b49c932
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_wmi.p.gz
new file mode 100644
index 000000000..574ce071e
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_cow_image_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_os.p.gz
new file mode 100644
index 000000000..c19b6e25e
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_shutil.p.gz
new file mode 100644
index 000000000..1d655bb02
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_time.p.gz
new file mode 100644
index 000000000..678b4cd10
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_uuid.p.gz
new file mode 100644
index 000000000..0884a350b
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_wmi.p.gz
new file mode 100644
index 000000000..128b20ac5
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_spawn_no_vswitch_exception_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_os.p.gz
new file mode 100644
index 000000000..bc4d4b99d
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_shutil.p.gz
new file mode 100644
index 000000000..8de7c4e71
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_time.p.gz
new file mode 100644
index 000000000..ee94dd6c2
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_uuid.p.gz
new file mode 100644
index 000000000..313bcfa06
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_wmi.p.gz
new file mode 100644
index 000000000..de8064431
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_already_suspended_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_os.p.gz
new file mode 100644
index 000000000..e852140a1
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_shutil.p.gz
new file mode 100644
index 000000000..f89c63faf
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_time.p.gz
new file mode 100644
index 000000000..12cda7550
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_uuid.p.gz
new file mode 100644
index 000000000..07445af3e
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_wmi.p.gz
new file mode 100644
index 000000000..8e21428f2
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_suspend_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_os.p.gz
new file mode 100644
index 000000000..794d9a09d
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_shutil.p.gz
new file mode 100644
index 000000000..775f8232c
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_time.p.gz
new file mode 100644
index 000000000..d0c0306f2
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_uuid.p.gz
new file mode 100644
index 000000000..3cb6c4b7f
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_wmi.p.gz
new file mode 100644
index 000000000..a48d4aa9b
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_already_running_wmi.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_os.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_os.p.gz
new file mode 100644
index 000000000..5578f64f8
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_os.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_shutil.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_shutil.p.gz
new file mode 100644
index 000000000..224ba464f
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_shutil.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_time.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_time.p.gz
new file mode 100644
index 000000000..29c15fe82
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_time.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_uuid.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_uuid.p.gz
new file mode 100644
index 000000000..9ac16ec7d
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_uuid.p.gz
diff --git a/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_wmi.p.gz b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_wmi.p.gz
new file mode 100644
index 000000000..d6244c3fc
--- /dev/null
+++ b/nova/tests/hyperv/stubs/test_hypervapi.HyperVAPITestCase.test_unpause_wmi.p.gz
diff --git a/nova/tests/test_hypervapi.py b/nova/tests/test_hypervapi.py
new file mode 100644
index 000000000..8c4296dd3
--- /dev/null
+++ b/nova/tests/test_hypervapi.py
@@ -0,0 +1,463 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#  Copyright 2012 Cloudbase Solutions Srl
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Test suite for the Hyper-V driver and related APIs.
+"""
+
+import os
+import shutil
+import sys
+import uuid
+
+from nova.compute import power_state
+from nova import context
+from nova import db
+from nova import flags
+from nova.image import glance
+from nova.tests import fake_network
+from nova.tests.hyperv import basetestcase
+from nova.tests.hyperv import db_fakes
+from nova.tests.hyperv import hypervutils
+from nova.tests.hyperv import mockproxy
+import nova.tests.image.fake as fake_image
+from nova.virt.hyperv import constants
+from nova.virt.hyperv import driver as driver_hyperv
+from nova.virt.hyperv import vmutils
+from nova.virt import images
+
+
+class HyperVAPITestCase(basetestcase.BaseTestCase):
+    """Unit tests for Hyper-V driver calls."""
+
+    def setUp(self):
+        super(HyperVAPITestCase, self).setUp()
+
+        self._user_id = 'fake'
+        self._project_id = 'fake'
+        self._instance_data = None
+        self._image_metadata = None
+        self._dest_server = None
+        self._fetched_image = None
+        self._update_image_raise_exception = False
+        self._post_method_called = False
+        self._recover_method_called = False
+        self._volume_target_portal = '192.168.1.112:3260'
+        self._volume_id = '10958016-e196-42e3-9e7f-5d8927ae3099'
+        self._context = context.RequestContext(self._user_id, self._project_id)
+
+        self._setup_stubs()
+
+        self.flags(instances_path=r'C:\Hyper-V\test\instances',
+                        vswitch_name='external')
+
+        self._hypervutils = hypervutils.HyperVUtils()
+        self._conn = driver_hyperv.HyperVDriver()
+
+    def _setup_stubs(self):
+        db_fakes.stub_out_db_instance_api(self.stubs)
+        fake_image.stub_out_image_service(self.stubs)
+
+        def fake_fetch(context, image_id, target, user, project):
+            self._fetched_image = target
+            if not os.path.exists(target):
+                self._hypervutils.create_vhd(target)
+        self.stubs.Set(images, 'fetch', fake_fetch)
+
+        def fake_get_remote_image_service(context, name):
+            class FakeGlanceImageService(object):
+                def update(self_fake, context, image_id, image_metadata, f):
+                    if self._update_image_raise_exception:
+                        raise vmutils.HyperVException(
+                            "Simulated update failure")
+                    self._image_metadata = image_metadata
+            return (FakeGlanceImageService(), 1)
+        self.stubs.Set(glance, 'get_remote_image_service',
+            fake_get_remote_image_service)
+
+        # Modules to mock
+        modules_to_mock = [
+            'wmi',
+            'os',
+            'shutil',
+            'uuid',
+            'time',
+            'subprocess',
+            'multiprocessing',
+            '_winreg'
+        ]
+
+        # Modules in which the mocks are going to be injected
+        from nova.virt.hyperv import baseops
+        from nova.virt.hyperv import livemigrationops
+        from nova.virt.hyperv import snapshotops
+        from nova.virt.hyperv import vmops
+        from nova.virt.hyperv import volumeops
+        from nova.virt.hyperv import volumeutils
+
+        modules_to_test = [
+            driver_hyperv,
+            baseops,
+            vmops,
+            vmutils,
+            volumeops,
+            volumeutils,
+            snapshotops,
+            livemigrationops,
+            hypervutils,
+            sys.modules[__name__]
+        ]
+
+        self._inject_mocks_in_modules(modules_to_mock, modules_to_test)
+
+        if isinstance(snapshotops.wmi, mockproxy.Mock):
+            from nova.virt.hyperv import ioutils
+            import StringIO
+
+            def fake_open(name, mode):
+                return StringIO.StringIO("fake file content")
+            self.stubs.Set(ioutils, 'open', fake_open)
+
+    def tearDown(self):
+        try:
+            if self._instance_data and self._hypervutils.vm_exists(
+                    self._instance_data["name"]):
+                self._hypervutils.remove_vm(self._instance_data["name"])
+
+            if self._dest_server and \
+                    self._hypervutils.remote_vm_exists(self._dest_server,
+                        self._instance_data["name"]):
+                self._hypervutils.remove_remote_vm(self._dest_server,
+                    self._instance_data["name"])
+
+            self._hypervutils.logout_iscsi_volume_sessions(self._volume_id)
+
+            shutil.rmtree(flags.FLAGS.instances_path, True)
+
+            fake_image.FakeImageService_reset()
+        finally:
+            super(HyperVAPITestCase, self).tearDown()
+
+    def test_list_instances(self):
+        num_vms = self._hypervutils.get_vm_count()
+        instances = self._conn.list_instances()
+
+        self.assertEquals(len(instances), num_vms)
+
+    def test_get_info(self):
+        self._spawn_instance(True)
+        info = self._conn.get_info(self._instance_data)
+
+        self.assertEquals(info["state"], str(power_state.RUNNING))
+
+    def test_spawn_cow_image(self):
+        self._test_spawn_instance(True)
+
+    def test_spawn_no_cow_image(self):
+        self._test_spawn_instance(False)
+
+    def test_spawn_no_vswitch_exception(self):
+        # Set flag to a non existing vswitch
+        self.flags(vswitch_name=str(uuid.uuid4()))
+        self.assertRaises(vmutils.HyperVException, self._spawn_instance, True)
+
+        self.assertFalse(self._hypervutils.vm_exists(
+            self._instance_data["name"]))
+
+    def _test_vm_state_change(self, action, from_state, to_state):
+        self._spawn_instance(True)
+        if from_state:
+            self._hypervutils.set_vm_state(self._instance_data["name"],
+                from_state)
+        action(self._instance_data)
+
+        vmstate = self._hypervutils.get_vm_state(self._instance_data["name"])
+        self.assertEquals(vmstate, to_state)
+
+    def test_pause(self):
+        self._test_vm_state_change(self._conn.pause, None,
+            constants.HYPERV_VM_STATE_PAUSED)
+
+    def test_pause_already_paused(self):
+        self._test_vm_state_change(self._conn.pause,
+            constants.HYPERV_VM_STATE_PAUSED,
+            constants.HYPERV_VM_STATE_PAUSED)
+
+    def test_unpause(self):
+        self._test_vm_state_change(self._conn.unpause,
+            constants.HYPERV_VM_STATE_PAUSED,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_unpause_already_running(self):
+        self._test_vm_state_change(self._conn.unpause, None,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_suspend(self):
+        self._test_vm_state_change(self._conn.suspend, None,
+                constants.HYPERV_VM_STATE_SUSPENDED)
+
+    def test_suspend_already_suspended(self):
+        self._test_vm_state_change(self._conn.suspend,
+                constants.HYPERV_VM_STATE_SUSPENDED,
+                constants.HYPERV_VM_STATE_SUSPENDED)
+
+    def test_resume(self):
+        self._test_vm_state_change(self._conn.resume,
+            constants.HYPERV_VM_STATE_SUSPENDED,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_resume_already_running(self):
+        self._test_vm_state_change(self._conn.resume, None,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_power_off(self):
+        self._test_vm_state_change(self._conn.power_off, None,
+            constants.HYPERV_VM_STATE_DISABLED)
+
+    def test_power_off_already_powered_off(self):
+        self._test_vm_state_change(self._conn.suspend,
+            constants.HYPERV_VM_STATE_DISABLED,
+            constants.HYPERV_VM_STATE_DISABLED)
+
+    def test_power_on(self):
+        self._test_vm_state_change(self._conn.power_on,
+            constants.HYPERV_VM_STATE_DISABLED,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_power_on_already_running(self):
+        self._test_vm_state_change(self._conn.power_on, None,
+            constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_reboot(self):
+        self._spawn_instance(True)
+
+        network_info = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                              spectacular=True)
+        self._conn.reboot(self._instance_data, network_info, None)
+
+        vmstate = self._hypervutils.get_vm_state(self._instance_data["name"])
+        self.assertEquals(vmstate, constants.HYPERV_VM_STATE_ENABLED)
+
+    def test_destroy(self):
+        self._spawn_instance(True)
+        (vhd_paths, _) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+
+        self._conn.destroy(self._instance_data)
+
+        self.assertFalse(self._hypervutils.vm_exists(
+            self._instance_data["name"]))
+        self._instance_data = None
+
+        for vhd_path in vhd_paths:
+            self.assertFalse(os.path.exists(vhd_path))
+
+    def test_live_migration(self):
+        self.flags(limit_cpu_features=True)
+        self._spawn_instance(False)
+
+        # Existing server
+        self._dest_server = "HV12RCTest1"
+
+        self._live_migration(self._dest_server)
+
+        instance_name = self._instance_data["name"]
+        self.assertFalse(self._hypervutils.vm_exists(instance_name))
+        self.assertTrue(self._hypervutils.remote_vm_exists(self._dest_server,
+            instance_name))
+
+        self.assertTrue(self._post_method_called)
+        self.assertFalse(self._recover_method_called)
+
+    def test_live_migration_with_target_failure(self):
+        self.flags(limit_cpu_features=True)
+        self._spawn_instance(False)
+
+        dest_server = "nonexistingserver"
+
+        exception_raised = False
+        try:
+            self._live_migration(dest_server)
+        except Exception:
+            exception_raised = True
+
+        # Cannot use assertRaises with pythoncom.com_error on Linux
+        self.assertTrue(exception_raised)
+
+        instance_name = self._instance_data["name"]
+        self.assertTrue(self._hypervutils.vm_exists(instance_name))
+
+        self.assertFalse(self._post_method_called)
+        self.assertTrue(self._recover_method_called)
+
+    def _live_migration(self, dest_server):
+        def fake_post_method(context, instance_ref, dest, block_migration):
+                self._post_method_called = True
+
+        def fake_recover_method(context, instance_ref, dest, block_migration):
+            self._recover_method_called = True
+
+        self._conn.live_migration(self._context, self._instance_data,
+            dest_server, fake_post_method, fake_recover_method)
+
+    def test_pre_live_migration_cow_image(self):
+        self._test_pre_live_migration(True)
+
+    def test_pre_live_migration_no_cow_image(self):
+        self._test_pre_live_migration(False)
+
+    def _test_pre_live_migration(self, cow):
+        self.flags(use_cow_images=cow)
+
+        instance_name = 'openstack_unit_test_vm_' + str(uuid.uuid4())
+
+        network_info = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                              spectacular=True)
+        instance_data = db_fakes.get_fake_instance_data(instance_name,
+            self._project_id, self._user_id)
+        block_device_info = None
+
+        self._conn.pre_live_migration(self._context, instance_data,
+            block_device_info, network_info)
+
+        if cow:
+            self.assertTrue(not self._fetched_image is None)
+        else:
+            self.assertTrue(self._fetched_image is None)
+
+    def test_snapshot_with_update_failure(self):
+        self._spawn_instance(True)
+
+        self._update_image_raise_exception = True
+        snapshot_name = 'test_snapshot_' + str(uuid.uuid4())
+        self.assertRaises(vmutils.HyperVException, self._conn.snapshot,
+            self._context, self._instance_data, snapshot_name)
+
+        # assert VM snapshots have been removed
+        self.assertEquals(self._hypervutils.get_vm_snapshots_count(
+            self._instance_data["name"]), 0)
+
+    def test_snapshot(self):
+        self._spawn_instance(True)
+
+        snapshot_name = 'test_snapshot_' + str(uuid.uuid4())
+        self._conn.snapshot(self._context, self._instance_data, snapshot_name)
+
+        self.assertTrue(self._image_metadata and
+                "disk_format" in self._image_metadata and
+                self._image_metadata["disk_format"] == "vhd")
+
+        # assert VM snapshots have been removed
+        self.assertEquals(self._hypervutils.get_vm_snapshots_count(
+            self._instance_data["name"]), 0)
+
+    def _spawn_instance(self, cow, block_device_info=None):
+        self.flags(use_cow_images=cow)
+
+        instance_name = 'openstack_unit_test_vm_' + str(uuid.uuid4())
+
+        self._instance_data = db_fakes.get_fake_instance_data(instance_name,
+                self._project_id, self._user_id)
+        instance = db.instance_create(self._context, self._instance_data)
+
+        image = db_fakes.get_fake_image_data(self._project_id, self._user_id)
+
+        network_info = fake_network.fake_get_instance_nw_info(self.stubs,
+                                                              spectacular=True)
+
+        self._conn.spawn(self._context, instance, image, network_info,
+            block_device_info)
+
+    def _test_spawn_instance(self, cow):
+        self._spawn_instance(cow)
+
+        self.assertTrue(self._hypervutils.vm_exists(
+            self._instance_data["name"]))
+
+        vmstate = self._hypervutils.get_vm_state(self._instance_data["name"])
+        self.assertEquals(vmstate, constants.HYPERV_VM_STATE_ENABLED)
+
+        (vhd_paths, _) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+        self.assertEquals(len(vhd_paths), 1)
+
+        parent_path = self._hypervutils.get_vhd_parent_path(vhd_paths[0])
+        if cow:
+            self.assertTrue(not parent_path is None)
+            self.assertEquals(self._fetched_image, parent_path)
+        else:
+            self.assertTrue(parent_path is None)
+            self.assertEquals(self._fetched_image, vhd_paths[0])
+
+    def _attach_volume(self):
+        self._spawn_instance(True)
+        connection_info = db_fakes.get_fake_volume_info_data(
+            self._volume_target_portal, self._volume_id)
+
+        self._conn.attach_volume(connection_info,
+            self._instance_data["name"], '/dev/sdc')
+
+    def test_attach_volume(self):
+        self._attach_volume()
+
+        (_, volumes_paths) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+        self.assertEquals(len(volumes_paths), 1)
+
+        sessions_exist = self._hypervutils.iscsi_volume_sessions_exist(
+            self._volume_id)
+        self.assertTrue(sessions_exist)
+
+    def test_detach_volume(self):
+        self._attach_volume()
+        connection_info = db_fakes.get_fake_volume_info_data(
+            self._volume_target_portal, self._volume_id)
+
+        self._conn.detach_volume(connection_info,
+            self._instance_data["name"], '/dev/sdc')
+
+        (_, volumes_paths) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+        self.assertEquals(len(volumes_paths), 0)
+
+        sessions_exist = self._hypervutils.iscsi_volume_sessions_exist(
+            self._volume_id)
+        self.assertFalse(sessions_exist)
+
+    def test_boot_from_volume(self):
+        block_device_info = db_fakes.get_fake_block_device_info(
+            self._volume_target_portal, self._volume_id)
+
+        self._spawn_instance(False, block_device_info)
+
+        (_, volumes_paths) = self._hypervutils.get_vm_disks(
+            self._instance_data["name"])
+
+        self.assertEquals(len(volumes_paths), 1)
+
+        sessions_exist = self._hypervutils.iscsi_volume_sessions_exist(
+            self._volume_id)
+        self.assertTrue(sessions_exist)
+
+    def test_attach_volume_with_target_connection_failure(self):
+        self._spawn_instance(True)
+
+        target = 'nonexistingtarget:3260'
+        connection_info = db_fakes.get_fake_volume_info_data(target,
+            self._volume_id)
+
+        self.assertRaises(vmutils.HyperVException, self._conn.attach_volume,
+            connection_info, self._instance_data["name"], '/dev/sdc')