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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2010 Citrix Systems, Inc.
#
# 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"""
from nova.virt import xenapi_conn
from nova.virt.xenapi import fake
from nova.virt.xenapi import volume_utils
from nova.virt.xenapi import vm_utils
def stubout_instance_snapshot(stubs):
@classmethod
def fake_fetch_image(cls, session, instance_id, image, user, project,
type):
# Stubout wait_for_task
def fake_wait_for_task(self, task, id):
class FakeEvent:
def send(self, value):
self.rv = value
def wait(self):
return self.rv
done = FakeEvent()
self._poll_task(id, task, done)
rv = done.wait()
return rv
def fake_loop(self):
pass
stubs.Set(xenapi_conn.XenAPISession, 'wait_for_task',
fake_wait_for_task)
stubs.Set(xenapi_conn.XenAPISession, '_stop_loop', fake_loop)
from nova.virt.xenapi.fake import create_vdi
name_label = "instance-%s" % instance_id
#TODO: create fake SR record
sr_ref = "fakesr"
vdi_ref = create_vdi(name_label=name_label, read_only=False,
sr_ref=sr_ref, sharable=False)
vdi_rec = session.get_xenapi().VDI.get_record(vdi_ref)
vdi_uuid = vdi_rec['uuid']
return vdi_uuid
stubs.Set(vm_utils.VMHelper, 'fetch_image', fake_fetch_image)
def fake_parse_xmlrpc_value(val):
return val
stubs.Set(xenapi_conn, '_parse_xmlrpc_value', fake_parse_xmlrpc_value)
def fake_wait_for_vhd_coalesce(session, instance_id, sr_ref, vdi_ref,
original_parent_uuid):
from nova.virt.xenapi.fake import create_vdi
name_label = "instance-%s" % instance_id
#TODO: create fake SR record
sr_ref = "fakesr"
vdi_ref = create_vdi(name_label=name_label, read_only=False,
sr_ref=sr_ref, sharable=False)
vdi_rec = session.get_xenapi().VDI.get_record(vdi_ref)
vdi_uuid = vdi_rec['uuid']
return vdi_uuid
stubs.Set(vm_utils.VMHelper, 'fetch_image', fake_fetch_image)
def fake_parse_xmlrpc_value(val):
return val
stubs.Set(xenapi_conn, '_parse_xmlrpc_value', fake_parse_xmlrpc_value)
def fake_wait_for_vhd_coalesce(session, instance_id, sr_ref, vdi_ref,
original_parent_uuid):
#TODO(sirp): Should we actually fake out the data here
return "fakeparent"
stubs.Set(vm_utils, 'wait_for_vhd_coalesce', fake_wait_for_vhd_coalesce)
def stubout_session(stubs, cls):
"""Stubs out two methods from XenAPISession"""
def fake_import(self):
"""Stubs out get_imported_xenapi of XenAPISession"""
fake_module = 'nova.virt.xenapi.fake'
from_list = ['fake']
return __import__(fake_module, globals(), locals(), from_list, -1)
stubs.Set(xenapi_conn.XenAPISession, '_create_session',
lambda s, url: cls(url))
stubs.Set(xenapi_conn.XenAPISession, 'get_imported_xenapi',
fake_import)
def stub_out_get_target(stubs):
"""Stubs out _get_target in volume_utils"""
def fake_get_target(volume_id):
return (None, None)
stubs.Set(volume_utils, '_get_target', fake_get_target)
def stubout_get_this_vm_uuid(stubs):
def f():
vms = [rec['uuid'] for ref, rec
in fake.get_all_records('VM').iteritems()
if rec['is_control_domain']]
return vms[0]
stubs.Set(vm_utils, 'get_this_vm_uuid', f)
def stubout_stream_disk(stubs):
def f(_1, _2, _3, _4):
pass
stubs.Set(vm_utils, '_stream_disk', f)
def stubout_is_vdi_pv(stubs):
def f(_1):
return False
stubs.Set(vm_utils, '_is_vdi_pv', f)
class FakeSessionForVMTests(fake.SessionBase):
""" Stubs out a XenAPISession for VM tests """
def __init__(self, uri):
super(FakeSessionForVMTests, self).__init__(uri)
def network_get_all_records_where(self, _1, _2):
return self.xenapi.network.get_all_records()
def host_call_plugin(self, _1, _2, _3, _4, _5):
sr_ref = fake.get_all('SR')[0]
vdi_ref = fake.create_vdi('', False, sr_ref, False)
vdi_rec = fake.get_record('VDI', vdi_ref)
return '<string>%s</string>' % vdi_rec['uuid']
def VM_start(self, _1, ref, _2, _3):
vm = fake.get_record('VM', ref)
if vm['power_state'] != 'Halted':
raise fake.Failure(['VM_BAD_POWER_STATE', ref, 'Halted',
vm['power_state']])
vm['power_state'] = 'Running'
vm['is_a_template'] = False
vm['is_control_domain'] = False
def VM_snapshot(self, session_ref, vm_ref, label):
status = "Running"
template_vm_ref = fake.create_vm(label, status, is_a_template=True,
is_control_domain=False)
sr_ref = "fakesr"
template_vdi_ref = fake.create_vdi(label, read_only=True,
sr_ref=sr_ref, sharable=False)
template_vbd_ref = fake.create_vbd(template_vm_ref, template_vdi_ref)
return template_vm_ref
def VDI_destroy(self, session_ref, vdi_ref):
fake.destroy_vdi(vdi_ref)
def VM_destroy(self, session_ref, vm_ref):
fake.destroy_vm(vm_ref)
def SR_scan(self, session_ref, sr_ref):
pass
def VDI_set_name_label(self, session_ref, vdi_ref, name_label):
pass
class FakeSessionForVolumeTests(fake.SessionBase):
""" Stubs out a XenAPISession for Volume tests """
def __init__(self, uri):
super(FakeSessionForVolumeTests, self).__init__(uri)
def VDI_introduce(self, _1, uuid, _2, _3, _4, _5,
_6, _7, _8, _9, _10, _11):
valid_vdi = False
refs = fake.get_all('VDI')
for ref in refs:
rec = fake.get_record('VDI', ref)
if rec['uuid'] == uuid:
valid_vdi = True
if not valid_vdi:
raise fake.Failure([['INVALID_VDI', 'session', self._session]])
class FakeSessionForVolumeFailedTests(FakeSessionForVolumeTests):
""" Stubs out a XenAPISession for Volume tests: it injects failures """
def __init__(self, uri):
super(FakeSessionForVolumeFailedTests, self).__init__(uri)
def VDI_introduce(self, _1, uuid, _2, _3, _4, _5,
_6, _7, _8, _9, _10, _11):
# This is for testing failure
raise fake.Failure([['INVALID_VDI', 'session', self._session]])
def PBD_unplug(self, _1, ref):
rec = fake.get_record('PBD', ref)
rec['currently-attached'] = False
def SR_forget(self, _1, ref):
pass
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