Synnefo

# vim: set fileencoding=utf-8 :

# Copyright 2013 GRNET S.A. All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

#   1. Redistributions of source code must retain the above copyright

#      notice, this list of conditions and the following disclaimer.

#

#  2. Redistributions in binary form must reproduce the above copyright

#     notice, this list of conditions and the following disclaimer in the

#     documentation and/or other materials provided with the distribution.

#

# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

# SUCH DAMAGE.

#

# The views and conclusions contained in the software and documentation are

# those of the authors and should not be interpreted as representing official

# policies, either expressed or implied, of GRNET S.A.

# Provides automated tests for logic module

from django.test import TransactionTestCase

#from snf_django.utils.testing import mocked_quotaholder

from synnefo.logic import servers

from synnefo import quotas

from synnefo.db import models_factory as mfactory, models

from mock import patch

from snf_django.lib.api import faults

from snf_django.utils.testing import mocked_quotaholder, override_settings

from django.conf import settings

from copy import deepcopy

@patch("synnefo.logic.rapi_pool.GanetiRapiClient")

class ServerCreationTest(TransactionTestCase):

    def test_create(self, mrapi):

        flavor = mfactory.FlavorFactory()

        kwargs = {

            "userid": "test",

            "name": "test_vm",

            "password": "1234",

            "flavor": flavor,

            "image": {"id": "foo", "backend_id": "foo", "format": "diskdump",

                      "metadata": "{}"},

            "metadata": {"foo": "bar"},

            "personality": [],

        }

        # no backend!

        mfactory.BackendFactory(offline=True)

        self.assertRaises(faults.ServiceUnavailable, servers.create, **kwargs)

        self.assertEqual(models.VirtualMachine.objects.count(), 0)

        mfactory.IPv4SubnetFactory(network__public=True)

        mfactory.IPv6SubnetFactory(network__public=True)

        mfactory.BackendFactory()

        # error in nics

        req = deepcopy(kwargs)

        req["networks"] = [{"uuid": 42}]

        self.assertRaises(faults.ItemNotFound, servers.create, **req)

        self.assertEqual(models.VirtualMachine.objects.count(), 0)

        # error in enqueue. check the vm is deleted and resources released

        mrapi().CreateInstance.side_effect = Exception("ganeti is down")

        with mocked_quotaholder():

            servers.create(**kwargs)

        vm = models.VirtualMachine.objects.get()

        self.assertFalse(vm.deleted)

        self.assertEqual(vm.operstate, "ERROR")

        self.assertEqual(len(vm.nics.all()), 2)

        for nic in vm.nics.all():

            self.assertEqual(nic.state, "ERROR")

@patch("synnefo.logic.rapi_pool.GanetiRapiClient")

class ServerTest(TransactionTestCase):

    def test_connect_network(self, mrapi):

        # Common connect

        for dhcp in [True, False]:

            subnet = mfactory.IPv4SubnetFactory(network__flavor="CUSTOM",

                                                cidr="192.168.2.0/24",

                                                gateway="192.168.2.1",

                                                dhcp=dhcp)

            net = subnet.network

            vm = mfactory.VirtualMachineFactory(operstate="STARTED")

            mfactory.BackendNetworkFactory(network=net, backend=vm.backend)

            mrapi().ModifyInstance.return_value = 42

            with override_settings(settings, GANETI_USE_HOTPLUG=True):

                servers.connect(vm, net)

            pool = net.get_ip_pools(locked=False)[0]

            self.assertFalse(pool.is_available("192.168.2.2"))

            args, kwargs = mrapi().ModifyInstance.call_args

            nics = kwargs["nics"][0]

            self.assertEqual(kwargs["instance"], vm.backend_vm_id)

            self.assertEqual(nics[0], "add")

            self.assertEqual(nics[1], "-1")

            self.assertEqual(nics[2]["ip"], "192.168.2.2")

            self.assertEqual(nics[2]["network"], net.backend_id)

        # Test connect to IPv6 only network

        vm = mfactory.VirtualMachineFactory(operstate="STARTED")

        subnet = mfactory.IPv6SubnetFactory(cidr="2000::/64",

                                            gateway="2000::1")

        net = subnet.network

        mfactory.BackendNetworkFactory(network=net, backend=vm.backend)

        with override_settings(settings, GANETI_USE_HOTPLUG=True):

            servers.connect(vm, net)

        args, kwargs = mrapi().ModifyInstance.call_args

        nics = kwargs["nics"][0]

        self.assertEqual(kwargs["instance"], vm.backend_vm_id)

        self.assertEqual(nics[0], "add")

        self.assertEqual(nics[1], "-1")

        self.assertEqual(nics[2]["ip"], None)

        self.assertEqual(nics[2]["network"], net.backend_id)

@patch("synnefo.logic.rapi_pool.GanetiRapiClient")

class ServerCommandTest(TransactionTestCase):

    def test_pending_task(self, mrapi):

        vm = mfactory.VirtualMachineFactory(task="REBOOT", task_job_id=1)

        self.assertRaises(faults.BadRequest, servers.start, vm)

        vm = mfactory.VirtualMachineFactory(task="BUILD", task_job_id=1)

        self.assertRaises(faults.BuildInProgress, servers.start, vm)

        # Assert always succeeds

        vm = mfactory.VirtualMachineFactory(task="BUILD", task_job_id=1)

        mrapi().DeleteInstance.return_value = 1

        with mocked_quotaholder():

            servers.destroy(vm)

        vm = mfactory.VirtualMachineFactory(task="REBOOT", task_job_id=1)

        with mocked_quotaholder():

            servers.destroy(vm)

    def test_deleted_vm(self, mrapi):

        vm = mfactory.VirtualMachineFactory(deleted=True)

        self.assertRaises(faults.BadRequest, servers.start, vm)

    def test_invalid_operstate_for_action(self, mrapi):

        vm = mfactory.VirtualMachineFactory(operstate="STARTED")

        self.assertRaises(faults.BadRequest, servers.start, vm)

        vm = mfactory.VirtualMachineFactory(operstate="STOPPED")

        self.assertRaises(faults.BadRequest, servers.stop, vm)

        vm = mfactory.VirtualMachineFactory(operstate="STARTED")

        flavor = mfactory.FlavorFactory()

        self.assertRaises(faults.BadRequest, servers.resize, vm, flavor)

        # Check that connect/disconnect is allowed only in STOPPED vms

        # if hotplug is disabled.

        vm = mfactory.VirtualMachineFactory(operstate="STARTED")

        network = mfactory.NetworkFactory(state="ACTIVE")

        with override_settings(settings, GANETI_USE_HOTPLUG=False):

            self.assertRaises(faults.BadRequest, servers.connect, vm, network)

            self.assertRaises(faults.BadRequest, servers.disconnect, vm,

                              network)

        #test valid

        vm = mfactory.VirtualMachineFactory(operstate="STOPPED")

        mrapi().StartupInstance.return_value = 1

        with mocked_quotaholder():

            servers.start(vm)

        vm.task = None

        vm.task_job_id = None

        vm.save()

        with mocked_quotaholder():

            quotas.accept_serial(vm.serial)

        mrapi().RebootInstance.return_value = 1

        with mocked_quotaholder():

            servers.reboot(vm, "HARD")

    def test_commission(self, mrapi):

        vm = mfactory.VirtualMachineFactory(operstate="STOPPED")

        # Still pending

        vm.serial = mfactory.QuotaHolderSerialFactory(serial=200,

                                                      resolved=False,

                                                      pending=True)

        serial = vm.serial

        mrapi().StartupInstance.return_value = 1

        with mocked_quotaholder() as m:

            with self.assertRaises(quotas.ResolveError):

                servers.start(vm)

        # Not pending, rejct

        vm.task = None

        vm.serial = mfactory.QuotaHolderSerialFactory(serial=400,

                                                      resolved=False,

                                                      pending=False,

                                                      accept=False)

        serial = vm.serial

        mrapi().StartupInstance.return_value = 1

        with mocked_quotaholder() as m:

            servers.start(vm)

            m.resolve_commissions.assert_called_once_with([],

                                                          [serial.serial])

            self.assertTrue(m.issue_one_commission.called)

        # Not pending, accept

        vm.task = None

        vm.serial = mfactory.QuotaHolderSerialFactory(serial=600,

                                                      resolved=False,

                                                      pending=False,

                                                      accept=True)

        serial = vm.serial

        mrapi().StartupInstance.return_value = 1

        with mocked_quotaholder() as m:

            servers.start(vm)

            m.resolve_commissions.assert_called_once_with([serial.serial],

                                                          [])

            self.assertTrue(m.issue_one_commission.called)

        mrapi().StartupInstance.side_effect = ValueError

        vm.task = None

        vm.serial = None

        # Test reject if Ganeti erro

        with mocked_quotaholder() as m:

            try:

                servers.start(vm)

            except:

                m.resolve_commissions\

                 .assert_called_once_with([], [vm.serial.serial])

    def test_task_after(self, mrapi):

        return

        vm = mfactory.VirtualMachineFactory()

        mrapi().StartupInstance.return_value = 1

        mrapi().ShutdownInstance.return_value = 2

        mrapi().RebootInstance.return_value = 2

        with mocked_quotaholder():

            vm.task = None

            vm.operstate = "STOPPED"

            servers.start(vm)

            self.assertEqual(vm.task, "START")

            self.assertEqual(vm.task_job_id, 1)

        with mocked_quotaholder():

            vm.task = None

            vm.operstate = "STARTED"

            servers.stop(vm)

            self.assertEqual(vm.task, "STOP")

            self.assertEqual(vm.task_job_id, 2)

        with mocked_quotaholder():

            vm.task = None

            servers.reboot(vm)

            self.assertEqual(vm.task, "REBOOT")

            self.assertEqual(vm.task_job_id, 3)