Synnefo » snf-ganeti

#!/usr/bin/python

#

# Copyright (C) 2010 Google Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

"""Script for unittesting the RAPI client module"""

import re

import unittest

import warnings

import pycurl

from ganeti import constants

from ganeti import http

from ganeti import serializer

from ganeti.rapi import connector

from ganeti.rapi import rlib2

from ganeti.rapi import client

import testutils

_URI_RE = re.compile(r"https://(?P<host>.*):(?P<port>\d+)(?P<path>/.*)")

def _GetPathFromUri(uri):

  """Gets the path and query from a URI.

  """

  match = _URI_RE.match(uri)

  if match:

    return match.groupdict()["path"]

  else:

    return None

class FakeCurl:

  def __init__(self, rapi):

    self._rapi = rapi

    self._opts = {}

    self._info = {}

  def setopt(self, opt, value):

    self._opts[opt] = value

  def getopt(self, opt):

    return self._opts.get(opt)

  def unsetopt(self, opt):

    self._opts.pop(opt, None)

  def getinfo(self, info):

    return self._info[info]

  def perform(self):

    method = self._opts[pycurl.CUSTOMREQUEST]

    url = self._opts[pycurl.URL]

    request_body = self._opts[pycurl.POSTFIELDS]

    writefn = self._opts[pycurl.WRITEFUNCTION]

    path = _GetPathFromUri(url)

    (code, resp_body) = self._rapi.FetchResponse(path, method, request_body)

    self._info[pycurl.RESPONSE_CODE] = code

    if resp_body is not None:

      writefn(resp_body)

class RapiMock(object):

  def __init__(self):

    self._mapper = connector.Mapper()

    self._responses = []

    self._last_handler = None

    self._last_req_data = None

  def AddResponse(self, response, code=200):

    self._responses.insert(0, (code, response))

  def GetLastHandler(self):

    return self._last_handler

  def GetLastRequestData(self):

    return self._last_req_data

  def FetchResponse(self, path, method, request_body):

    self._last_req_data = request_body

    try:

      HandlerClass, items, args = self._mapper.getController(path)

      self._last_handler = HandlerClass(items, args, None)

      if not hasattr(self._last_handler, method.upper()):

        raise http.HttpNotImplemented(message="Method not implemented")

    except http.HttpException, ex:

      code = ex.code

      response = ex.message

    else:

      if not self._responses:

        raise Exception("No responses")

      (code, response) = self._responses.pop()

    return code, response

class TestConstants(unittest.TestCase):

  def test(self):

    self.assertEqual(client.GANETI_RAPI_PORT, constants.DEFAULT_RAPI_PORT)

    self.assertEqual(client.GANETI_RAPI_VERSION, constants.RAPI_VERSION)

    self.assertEqual(client.HTTP_APP_JSON, http.HTTP_APP_JSON)

    self.assertEqual(client._REQ_DATA_VERSION_FIELD, rlib2._REQ_DATA_VERSION)

    self.assertEqual(client._INST_CREATE_REQV1, rlib2._INST_CREATE_REQV1)

class RapiMockTest(unittest.TestCase):

  def test(self):

    rapi = RapiMock()

    path = "/version"

    self.assertEqual((404, None), rapi.FetchResponse("/foo", "GET", None))

    self.assertEqual((501, "Method not implemented"),

                     rapi.FetchResponse("/version", "POST", None))

    rapi.AddResponse("2")

    code, response = rapi.FetchResponse("/version", "GET", None)

    self.assertEqual(200, code)

    self.assertEqual("2", response)

    self.failUnless(isinstance(rapi.GetLastHandler(), rlib2.R_version))

def _FakeNoSslPycurlVersion():

  # Note: incomplete version tuple

  return (3, "7.16.0", 462848, "mysystem", 1581, None, 0)

def _FakeFancySslPycurlVersion():

  # Note: incomplete version tuple

  return (3, "7.16.0", 462848, "mysystem", 1581, "FancySSL/1.2.3", 0)

def _FakeOpenSslPycurlVersion():

  # Note: incomplete version tuple

  return (2, "7.15.5", 462597, "othersystem", 668, "OpenSSL/0.9.8c", 0)

def _FakeGnuTlsPycurlVersion():

  # Note: incomplete version tuple

  return (3, "7.18.0", 463360, "somesystem", 1581, "GnuTLS/2.0.4", 0)

class TestExtendedConfig(unittest.TestCase):

  def testAuth(self):

    curl = FakeCurl(RapiMock())

    cl = client.GanetiRapiClient("master.example.com",

                                 username="user", password="pw",

                                 curl=curl)

    self.assertEqual(curl.getopt(pycurl.HTTPAUTH), pycurl.HTTPAUTH_BASIC)

    self.assertEqual(curl.getopt(pycurl.USERPWD), "user:pw")

  def testInvalidAuth(self):

    # No username

    self.assertRaises(client.Error, client.GanetiRapiClient,

                      "master-a.example.com", password="pw")

    # No password

    self.assertRaises(client.Error, client.GanetiRapiClient,

                      "master-b.example.com", username="user")

  def testCertVerifyInvalidCombinations(self):

    self.assertRaises(client.Error, client.GenericCurlConfig,

                      use_curl_cabundle=True, cafile="cert1.pem")

    self.assertRaises(client.Error, client.GenericCurlConfig,

                      use_curl_cabundle=True, capath="certs/")

    self.assertRaises(client.Error, client.GenericCurlConfig,

                      use_curl_cabundle=True,

                      cafile="cert1.pem", capath="certs/")

  def testProxySignalVerifyHostname(self):

    for use_gnutls in [False, True]:

      if use_gnutls:

        pcverfn = _FakeGnuTlsPycurlVersion

      else:

        pcverfn = _FakeOpenSslPycurlVersion

      for proxy in ["", "http://127.0.0.1:1234"]:

        for use_signal in [False, True]:

          for verify_hostname in [False, True]:

            cfgfn = client.GenericCurlConfig(proxy=proxy, use_signal=use_signal,

                                             verify_hostname=verify_hostname,

                                             _pycurl_version_fn=pcverfn)

            curl = FakeCurl(RapiMock())

            cl = client.GanetiRapiClient("master.example.com",

                                         curl_config_fn=cfgfn, curl=curl)

            self.assertEqual(curl.getopt(pycurl.PROXY), proxy)

            self.assertEqual(curl.getopt(pycurl.NOSIGNAL), not use_signal)

            if verify_hostname:

              self.assertEqual(curl.getopt(pycurl.SSL_VERIFYHOST), 2)

            else:

              self.assertEqual(curl.getopt(pycurl.SSL_VERIFYHOST), 0)

  def testNoCertVerify(self):

    cfgfn = client.GenericCurlConfig()

    curl = FakeCurl(RapiMock())

    cl = client.GanetiRapiClient("master.example.com", curl_config_fn=cfgfn,

                                 curl=curl)

    self.assertFalse(curl.getopt(pycurl.SSL_VERIFYPEER))

    self.assertFalse(curl.getopt(pycurl.CAINFO))

    self.assertFalse(curl.getopt(pycurl.CAPATH))

  def testCertVerifyCurlBundle(self):

    cfgfn = client.GenericCurlConfig(use_curl_cabundle=True)

    curl = FakeCurl(RapiMock())

    cl = client.GanetiRapiClient("master.example.com", curl_config_fn=cfgfn,

                                 curl=curl)

    self.assert_(curl.getopt(pycurl.SSL_VERIFYPEER))

    self.assertFalse(curl.getopt(pycurl.CAINFO))

    self.assertFalse(curl.getopt(pycurl.CAPATH))

  def testCertVerifyCafile(self):

    mycert = "/tmp/some/UNUSED/cert/file.pem"

    cfgfn = client.GenericCurlConfig(cafile=mycert)

    curl = FakeCurl(RapiMock())

    cl = client.GanetiRapiClient("master.example.com", curl_config_fn=cfgfn,

                                 curl=curl)

    self.assert_(curl.getopt(pycurl.SSL_VERIFYPEER))

    self.assertEqual(curl.getopt(pycurl.CAINFO), mycert)

    self.assertFalse(curl.getopt(pycurl.CAPATH))

  def testCertVerifyCapath(self):

    certdir = "/tmp/some/UNUSED/cert/directory"

    pcverfn = _FakeOpenSslPycurlVersion

    cfgfn = client.GenericCurlConfig(capath=certdir,

                                     _pycurl_version_fn=pcverfn)

    curl = FakeCurl(RapiMock())

    cl = client.GanetiRapiClient("master.example.com", curl_config_fn=cfgfn,

                                 curl=curl)

    self.assert_(curl.getopt(pycurl.SSL_VERIFYPEER))

    self.assertEqual(curl.getopt(pycurl.CAPATH), certdir)

    self.assertFalse(curl.getopt(pycurl.CAINFO))

  def testCertVerifyCapathGnuTls(self):

    certdir = "/tmp/some/UNUSED/cert/directory"

    pcverfn = _FakeGnuTlsPycurlVersion

    cfgfn = client.GenericCurlConfig(capath=certdir,

                                     _pycurl_version_fn=pcverfn)

    curl = FakeCurl(RapiMock())

    self.assertRaises(client.Error, client.GanetiRapiClient,

                      "master.example.com", curl_config_fn=cfgfn, curl=curl)

  def testCertVerifyNoSsl(self):

    certdir = "/tmp/some/UNUSED/cert/directory"

    pcverfn = _FakeNoSslPycurlVersion

    cfgfn = client.GenericCurlConfig(capath=certdir,

                                     _pycurl_version_fn=pcverfn)

    curl = FakeCurl(RapiMock())

    self.assertRaises(client.Error, client.GanetiRapiClient,

                      "master.example.com", curl_config_fn=cfgfn, curl=curl)

  def testCertVerifyFancySsl(self):

    certdir = "/tmp/some/UNUSED/cert/directory"

    pcverfn = _FakeFancySslPycurlVersion

    cfgfn = client.GenericCurlConfig(capath=certdir,

                                     _pycurl_version_fn=pcverfn)

    curl = FakeCurl(RapiMock())

    self.assertRaises(NotImplementedError, client.GanetiRapiClient,

                      "master.example.com", curl_config_fn=cfgfn, curl=curl)

  def testCertVerifyCapath(self):

    for connect_timeout in [None, 1, 5, 10, 30, 60, 300]:

      for timeout in [None, 1, 30, 60, 3600, 24 * 3600]:

        cfgfn = client.GenericCurlConfig(connect_timeout=connect_timeout,

                                         timeout=timeout)

        curl = FakeCurl(RapiMock())

        cl = client.GanetiRapiClient("master.example.com", curl_config_fn=cfgfn,

                                     curl=curl)

        self.assertEqual(curl.getopt(pycurl.CONNECTTIMEOUT), connect_timeout)

        self.assertEqual(curl.getopt(pycurl.TIMEOUT), timeout)

class GanetiRapiClientTests(testutils.GanetiTestCase):

  def setUp(self):

    testutils.GanetiTestCase.setUp(self)

    self.rapi = RapiMock()

    self.curl = FakeCurl(self.rapi)

    self.client = client.GanetiRapiClient("master.example.com",

                                          curl=self.curl)

    # Signals should be disabled by default

    self.assert_(self.curl.getopt(pycurl.NOSIGNAL))

    # No auth and no proxy

    self.assertFalse(self.curl.getopt(pycurl.USERPWD))

    self.assert_(self.curl.getopt(pycurl.PROXY) is None)

    # Content-type is required for requests

    headers = self.curl.getopt(pycurl.HTTPHEADER)

    self.assert_("Content-type: application/json" in headers)

  def assertHandler(self, handler_cls):

    self.failUnless(isinstance(self.rapi.GetLastHandler(), handler_cls))

  def assertQuery(self, key, value):

    self.assertEqual(value, self.rapi.GetLastHandler().queryargs.get(key, None))

  def assertItems(self, items):

    self.assertEqual(items, self.rapi.GetLastHandler().items)

  def assertBulk(self):

    self.assertTrue(self.rapi.GetLastHandler().useBulk())

  def assertDryRun(self):

    self.assertTrue(self.rapi.GetLastHandler().dryRun())

  def testEncodeQuery(self):

    query = [

      ("a", None),

      ("b", 1),

      ("c", 2),

      ("d", "Foo"),

      ("e", True),

      ]

    expected = [

      ("a", ""),

      ("b", 1),

      ("c", 2),

      ("d", "Foo"),

      ("e", 1),

      ]

    self.assertEqualValues(self.client._EncodeQuery(query),

                           expected)

    # invalid types

    for i in [[1, 2, 3], {"moo": "boo"}, (1, 2, 3)]:

      self.assertRaises(ValueError, self.client._EncodeQuery, [("x", i)])

  def testHttpError(self):

    self.rapi.AddResponse(None, code=404)

    try:

      self.client.GetJobStatus(15140)

    except client.GanetiApiError, err:

      self.assertEqual(err.code, 404)

    else:

      self.fail("Didn't raise exception")

  def testGetVersion(self):

    self.client._version = None

    self.rapi.AddResponse("2")

    self.assertEqual(2, self.client.GetVersion())

    self.assertHandler(rlib2.R_version)

  def testGetFeatures(self):

    for features in [[], ["foo", "bar", "baz"]]:

      self.rapi.AddResponse(serializer.DumpJson(features))

      self.assertEqual(features, self.client.GetFeatures())

      self.assertHandler(rlib2.R_2_features)

  def testGetOperatingSystems(self):

    self.rapi.AddResponse("[\"beos\"]")

    self.assertEqual(["beos"], self.client.GetOperatingSystems())

    self.assertHandler(rlib2.R_2_os)

  def testGetClusterTags(self):

    self.rapi.AddResponse("[\"tag\"]")

    self.assertEqual(["tag"], self.client.GetClusterTags())

    self.assertHandler(rlib2.R_2_tags)

  def testAddClusterTags(self):

    self.rapi.AddResponse("1234")

    self.assertEqual(1234,

        self.client.AddClusterTags(["awesome"], dry_run=True))

    self.assertHandler(rlib2.R_2_tags)

    self.assertDryRun()

    self.assertQuery("tag", ["awesome"])

  def testDeleteClusterTags(self):

    self.rapi.AddResponse("5107")

    self.assertEqual(5107, self.client.DeleteClusterTags(["awesome"],

                                                         dry_run=True))

    self.assertHandler(rlib2.R_2_tags)

    self.assertDryRun()

    self.assertQuery("tag", ["awesome"])

  def testGetInfo(self):

    self.rapi.AddResponse("{}")

    self.assertEqual({}, self.client.GetInfo())

    self.assertHandler(rlib2.R_2_info)

  def testGetInstances(self):

    self.rapi.AddResponse("[]")

    self.assertEqual([], self.client.GetInstances(bulk=True))

    self.assertHandler(rlib2.R_2_instances)

    self.assertBulk()

  def testGetInstance(self):

    self.rapi.AddResponse("[]")

    self.assertEqual([], self.client.GetInstance("instance"))

    self.assertHandler(rlib2.R_2_instances_name)

    self.assertItems(["instance"])

  def testGetInstanceInfo(self):

    self.rapi.AddResponse("21291")

    self.assertEqual(21291, self.client.GetInstanceInfo("inst3"))

    self.assertHandler(rlib2.R_2_instances_name_info)

    self.assertItems(["inst3"])

    self.assertQuery("static", None)

    self.rapi.AddResponse("3428")

    self.assertEqual(3428, self.client.GetInstanceInfo("inst31", static=False))

    self.assertHandler(rlib2.R_2_instances_name_info)

    self.assertItems(["inst31"])

    self.assertQuery("static", ["0"])

    self.rapi.AddResponse("15665")

    self.assertEqual(15665, self.client.GetInstanceInfo("inst32", static=True))

    self.assertHandler(rlib2.R_2_instances_name_info)

    self.assertItems(["inst32"])

    self.assertQuery("static", ["1"])

  def testCreateInstanceOldVersion(self):

    self.rapi.AddResponse(serializer.DumpJson([]))

    self.assertRaises(NotImplementedError, self.client.CreateInstance,

                      "create", "inst1.example.com", "plain", [], [],

                      dry_run=True)

  def testCreateInstance(self):

    self.rapi.AddResponse(serializer.DumpJson([rlib2._INST_CREATE_REQV1]))

    self.rapi.AddResponse("23030")

    job_id = self.client.CreateInstance("create", "inst1.example.com",

                                        "plain", [], [], dry_run=True)

    self.assertEqual(job_id, 23030)

    self.assertHandler(rlib2.R_2_instances)

    self.assertDryRun()

    data = serializer.LoadJson(self.rapi.GetLastRequestData())

    for field in ["dry_run", "beparams", "hvparams", "start"]:

      self.assertFalse(field in data)

    self.assertEqual(data["name"], "inst1.example.com")

    self.assertEqual(data["disk_template"], "plain")

  def testCreateInstance2(self):

    self.rapi.AddResponse(serializer.DumpJson([rlib2._INST_CREATE_REQV1]))

    self.rapi.AddResponse("24740")

    job_id = self.client.CreateInstance("import", "inst2.example.com",

                                        "drbd8", [{"size": 100,}],

                                        [{}, {"bridge": "br1", }],

                                        dry_run=False, start=True,

                                        pnode="node1", snode="node9",

                                        ip_check=False)

    self.assertEqual(job_id, 24740)

    self.assertHandler(rlib2.R_2_instances)

    data = serializer.LoadJson(self.rapi.GetLastRequestData())

    self.assertEqual(data[rlib2._REQ_DATA_VERSION], 1)

    self.assertEqual(data["name"], "inst2.example.com")

    self.assertEqual(data["disk_template"], "drbd8")

    self.assertEqual(data["start"], True)

    self.assertEqual(data["ip_check"], False)

    self.assertEqualValues(data["disks"], [{"size": 100,}])

    self.assertEqualValues(data["nics"], [{}, {"bridge": "br1", }])

  def testDeleteInstance(self):

    self.rapi.AddResponse("1234")

    self.assertEqual(1234, self.client.DeleteInstance("instance", dry_run=True))

    self.assertHandler(rlib2.R_2_instances_name)

    self.assertItems(["instance"])

    self.assertDryRun()

  def testGetInstanceTags(self):

    self.rapi.AddResponse("[]")

    self.assertEqual([], self.client.GetInstanceTags("fooinstance"))

    self.assertHandler(rlib2.R_2_instances_name_tags)

    self.assertItems(["fooinstance"])

  def testAddInstanceTags(self):

    self.rapi.AddResponse("1234")

    self.assertEqual(1234,

        self.client.AddInstanceTags("fooinstance", ["awesome"], dry_run=True))

    self.assertHandler(rlib2.R_2_instances_name_tags)

    self.assertItems(["fooinstance"])

    self.assertDryRun()

    self.assertQuery("tag", ["awesome"])

  def testDeleteInstanceTags(self):

    self.rapi.AddResponse("25826")

    self.assertEqual(25826, self.client.DeleteInstanceTags("foo", ["awesome"],

                                                           dry_run=True))

    self.assertHandler(rlib2.R_2_instances_name_tags)

    self.assertItems(["foo"])

    self.assertDryRun()

    self.assertQuery("tag", ["awesome"])

  def testRebootInstance(self):

    self.rapi.AddResponse("6146")

    job_id = self.client.RebootInstance("i-bar", reboot_type="hard",

                                        ignore_secondaries=True, dry_run=True)

    self.assertEqual(6146, job_id)

    self.assertHandler(rlib2.R_2_instances_name_reboot)

    self.assertItems(["i-bar"])

    self.assertDryRun()

    self.assertQuery("type", ["hard"])

    self.assertQuery("ignore_secondaries", ["1"])

  def testShutdownInstance(self):

    self.rapi.AddResponse("1487")

    self.assertEqual(1487, self.client.ShutdownInstance("foo-instance",

                                                        dry_run=True))

    self.assertHandler(rlib2.R_2_instances_name_shutdown)

    self.assertItems(["foo-instance"])

    self.assertDryRun()

  def testStartupInstance(self):

    self.rapi.AddResponse("27149")

    self.assertEqual(27149, self.client.StartupInstance("bar-instance",

                                                        dry_run=True))

    self.assertHandler(rlib2.R_2_instances_name_startup)

    self.assertItems(["bar-instance"])

    self.assertDryRun()

  def testReinstallInstance(self):

    self.rapi.AddResponse("19119")

    self.assertEqual(19119, self.client.ReinstallInstance("baz-instance", "DOS",

                                                          no_startup=True))

    self.assertHandler(rlib2.R_2_instances_name_reinstall)

    self.assertItems(["baz-instance"])

    self.assertQuery("os", ["DOS"])

    self.assertQuery("nostartup", ["1"])

  def testReplaceInstanceDisks(self):

    self.rapi.AddResponse("999")

    job_id = self.client.ReplaceInstanceDisks("instance-name",

        disks=[0, 1], dry_run=True, iallocator="hail")

    self.assertEqual(999, job_id)

    self.assertHandler(rlib2.R_2_instances_name_replace_disks)

    self.assertItems(["instance-name"])

    self.assertQuery("disks", ["0,1"])

    self.assertQuery("mode", ["replace_auto"])

    self.assertQuery("iallocator", ["hail"])

    self.assertDryRun()

    self.rapi.AddResponse("1000")

    job_id = self.client.ReplaceInstanceDisks("instance-bar",

        disks=[1], mode="replace_on_secondary", remote_node="foo-node",

        dry_run=True)

    self.assertEqual(1000, job_id)

    self.assertItems(["instance-bar"])

    self.assertQuery("disks", ["1"])

    self.assertQuery("remote_node", ["foo-node"])

    self.assertDryRun()

    self.rapi.AddResponse("5175")

    self.assertEqual(5175, self.client.ReplaceInstanceDisks("instance-moo"))

    self.assertItems(["instance-moo"])

    self.assertQuery("disks", None)

  def testPrepareExport(self):

    self.rapi.AddResponse("8326")

    self.assertEqual(8326, self.client.PrepareExport("inst1", "local"))

    self.assertHandler(rlib2.R_2_instances_name_prepare_export)

    self.assertItems(["inst1"])

    self.assertQuery("mode", ["local"])

  def testExportInstance(self):

    self.rapi.AddResponse("19695")

    job_id = self.client.ExportInstance("inst2", "local", "nodeX",

                                        shutdown=True)

    self.assertEqual(job_id, 19695)

    self.assertHandler(rlib2.R_2_instances_name_export)

    self.assertItems(["inst2"])

    data = serializer.LoadJson(self.rapi.GetLastRequestData())

    self.assertEqual(data["mode"], "local")

    self.assertEqual(data["destination"], "nodeX")

    self.assertEqual(data["shutdown"], True)

  def testGetJobs(self):

    self.rapi.AddResponse('[ { "id": "123", "uri": "\\/2\\/jobs\\/123" },'

                          '  { "id": "124", "uri": "\\/2\\/jobs\\/124" } ]')

    self.assertEqual([123, 124], self.client.GetJobs())

    self.assertHandler(rlib2.R_2_jobs)

  def testGetJobStatus(self):

    self.rapi.AddResponse("{\"foo\": \"bar\"}")

    self.assertEqual({"foo": "bar"}, self.client.GetJobStatus(1234))

    self.assertHandler(rlib2.R_2_jobs_id)

    self.assertItems(["1234"])

  def testWaitForJobChange(self):

    fields = ["id", "summary"]

    expected = {

      "job_info": [123, "something"],

      "log_entries": [],

      }

    self.rapi.AddResponse(serializer.DumpJson(expected))

    result = self.client.WaitForJobChange(123, fields, [], -1)

    self.assertEqualValues(expected, result)

    self.assertHandler(rlib2.R_2_jobs_id_wait)

    self.assertItems(["123"])

  def testCancelJob(self):

    self.rapi.AddResponse("[true, \"Job 123 will be canceled\"]")

    self.assertEqual([True, "Job 123 will be canceled"],

                     self.client.CancelJob(999, dry_run=True))

    self.assertHandler(rlib2.R_2_jobs_id)

    self.assertItems(["999"])

    self.assertDryRun()

  def testGetNodes(self):

    self.rapi.AddResponse("[ { \"id\": \"node1\", \"uri\": \"uri1\" },"

                          " { \"id\": \"node2\", \"uri\": \"uri2\" } ]")

    self.assertEqual(["node1", "node2"], self.client.GetNodes())

    self.assertHandler(rlib2.R_2_nodes)

    self.rapi.AddResponse("[ { \"id\": \"node1\", \"uri\": \"uri1\" },"

                          " { \"id\": \"node2\", \"uri\": \"uri2\" } ]")

    self.assertEqual([{"id": "node1", "uri": "uri1"},

                      {"id": "node2", "uri": "uri2"}],

                     self.client.GetNodes(bulk=True))

    self.assertHandler(rlib2.R_2_nodes)

    self.assertBulk()

  def testGetNode(self):

    self.rapi.AddResponse("{}")

    self.assertEqual({}, self.client.GetNode("node-foo"))

    self.assertHandler(rlib2.R_2_nodes_name)

    self.assertItems(["node-foo"])

  def testEvacuateNode(self):

    self.rapi.AddResponse("9876")

    job_id = self.client.EvacuateNode("node-1", remote_node="node-2")

    self.assertEqual(9876, job_id)

    self.assertHandler(rlib2.R_2_nodes_name_evacuate)

    self.assertItems(["node-1"])

    self.assertQuery("remote_node", ["node-2"])

    self.rapi.AddResponse("8888")

    job_id = self.client.EvacuateNode("node-3", iallocator="hail", dry_run=True)

    self.assertEqual(8888, job_id)

    self.assertItems(["node-3"])

    self.assertQuery("iallocator", ["hail"])

    self.assertDryRun()

    self.assertRaises(client.GanetiApiError,

                      self.client.EvacuateNode,

                      "node-4", iallocator="hail", remote_node="node-5")

  def testMigrateNode(self):

    self.rapi.AddResponse("1111")

    self.assertEqual(1111, self.client.MigrateNode("node-a", dry_run=True))

    self.assertHandler(rlib2.R_2_nodes_name_migrate)

    self.assertItems(["node-a"])

    self.assertQuery("live", ["1"])

    self.assertDryRun()

  def testGetNodeRole(self):

    self.rapi.AddResponse("\"master\"")

    self.assertEqual("master", self.client.GetNodeRole("node-a"))

    self.assertHandler(rlib2.R_2_nodes_name_role)

    self.assertItems(["node-a"])

  def testSetNodeRole(self):

    self.rapi.AddResponse("789")

    self.assertEqual(789,

        self.client.SetNodeRole("node-foo", "master-candidate", force=True))

    self.assertHandler(rlib2.R_2_nodes_name_role)

    self.assertItems(["node-foo"])

    self.assertQuery("force", ["1"])