Synnefo » snf-ganeti » ganeti-local

#!/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"""

try:

  import httplib2

  BaseHttp = httplib2.Http

  from ganeti.rapi import client

except ImportError:

  httplib2 = None

  BaseHttp = object

import re

import unittest

import warnings

from ganeti import http

from ganeti.rapi import connector

from ganeti.rapi import rlib2

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 HttpResponseMock(dict):

  """Dumb mock of httplib2.Response.

  """

  def __init__(self, status):

    self.status = status

    self['status'] = status

class HttpMock(BaseHttp):

  """Mock for httplib.Http.

  """

  def __init__(self, rapi):

    self._rapi = rapi

    self._last_request = None

  last_request_url = property(lambda self: self._last_request[0])

  last_request_method = property(lambda self: self._last_request[1])

  last_request_body = property(lambda self: self._last_request[2])

  def request(self, url, method, body, headers):

    self._last_request = (url, method, body)

    code, resp_body = self._rapi.FetchResponse(_GetPathFromUri(url), method)

    return HttpResponseMock(code), resp_body

class RapiMock(object):

  def __init__(self):

    self._mapper = connector.Mapper()

    self._responses = []

    self._last_handler = None

  def AddResponse(self, response):

    self._responses.insert(0, response)

  def PopResponse(self):

    if len(self._responses) > 0:

      return self._responses.pop()

    else:

      return None

  def GetLastHandler(self):

    return self._last_handler

  def FetchResponse(self, path, method):

    code = 200

    response = None

    try:

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

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

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

        code = 400

        response = "Bad request"

    except http.HttpException, ex:

      code = ex.code

      response = ex.message

    if not response:

      response = self.PopResponse()

    return code, response

class RapiMockTest(unittest.TestCase):

  def test(self):

    rapi = RapiMock()

    path = "/version"

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

    self.assertEqual((400, "Bad request"),

                     rapi.FetchResponse("/version", "POST"))

    rapi.AddResponse("2")

    code, response = rapi.FetchResponse("/version", "GET")

    self.assertEqual(200, code)

    self.assertEqual("2", response)

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

class GanetiRapiClientTests(unittest.TestCase):

  """Tests for remote API client.

  """

  def setUp(self):

    # Monkey-patch a fake VerifyCertificate function

    self._verify_certificate = client._VerifyCertificate

    client._VerifyCertificate = lambda x, y, z: True

    self.rapi = RapiMock()

    self.http = HttpMock(self.rapi)

    self.client = client.GanetiRapiClient('master.foo.com')

    self.client._http = self.http

    # Hard-code the version for easier testing.

    self.client._version = 2

  def tearDown(self):

    # Un-do the monkey-patch

    client._VerifyCertificate = self._verify_certificate

  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 testGetVersion(self):

    self.client._version = None

    self.rapi.AddResponse("2")

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

    self.assertHandler(rlib2.R_version)

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

    self.assertHandler(rlib2.R_2_tags)

    self.assertDryRun()

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

  def testDeleteClusterTags(self):

    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 testGetInstanceInfo(self):

    self.rapi.AddResponse("[]")

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

    self.assertHandler(rlib2.R_2_instances_name)

    self.assertItems(["instance"])

  def testCreateInstance(self):

    self.rapi.AddResponse("1234")

    self.assertEqual(1234, self.client.CreateInstance(dry_run=True))

    self.assertHandler(rlib2.R_2_instances)

    self.assertDryRun()

  def testDeleteInstance(self):

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

                               ignore_secondaries=True, dry_run=True)

    self.assertHandler(rlib2.R_2_instances_name_reboot)

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

    self.assertDryRun()

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

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

  def testShutdownInstance(self):

    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.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.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",

        ["hda", "hdc"], dry_run=True)

    self.assertEqual(999, job_id)

    self.assertHandler(rlib2.R_2_instances_name_replace_disks)

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

    self.assertQuery("disks", ["hda,hdc"])

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

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

    self.assertDryRun()

    self.assertRaises(client.InvalidReplacementMode,

                      self.client.ReplaceInstanceDisks,

                      "instance_a", ["hda"], mode="invalid_mode")

    self.assertRaises(client.GanetiApiError,

                      self.client.ReplaceInstanceDisks,

                      "instance-foo", ["hda"], mode="replace_on_secondary")

    self.rapi.AddResponse("1000")

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

        ["hda"], mode="replace_on_secondary", remote_node="foo-node",

        dry_run=True)

    self.assertEqual(1000, job_id)

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

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

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

    self.assertDryRun()

  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 testDeleteJob(self):

    self.client.DeleteJob(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 testGetNodeInfo(self):

    self.rapi.AddResponse("{}")

    self.assertEqual({}, self.client.GetNodeInfo("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", ["True"])

    self.assertEqual("master-candidate", self.http.last_request_body)

    self.assertRaises(client.InvalidNodeRole,

                      self.client.SetNodeRole, "node-bar", "fake-role")

  def testGetNodeStorageUnits(self):

    self.rapi.AddResponse("42")

    self.assertEqual(42,

        self.client.GetNodeStorageUnits("node-x", "lvm-pv", "fields"))

    self.assertHandler(rlib2.R_2_nodes_name_storage)

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

    self.assertQuery("storage_type", ["lvm-pv"])

    self.assertQuery("output_fields", ["fields"])

    self.assertRaises(client.InvalidStorageType,

                      self.client.GetNodeStorageUnits,

                      "node-y", "floppy-disk", "fields")

  def testModifyNodeStorageUnits(self):

    self.rapi.AddResponse("14")

    self.assertEqual(14,

        self.client.ModifyNodeStorageUnits("node-z", "lvm-pv", "hda"))

    self.assertHandler(rlib2.R_2_nodes_name_storage_modify)

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

    self.assertQuery("storage_type", ["lvm-pv"])

    self.assertQuery("name", ["hda"])

    self.assertRaises(client.InvalidStorageType,

                      self.client.ModifyNodeStorageUnits,

                      "node-n", "floppy-disk", "hdc")

  def testGetNodeTags(self):

    self.rapi.AddResponse("[\"fry\", \"bender\"]")

    self.assertEqual(["fry", "bender"], self.client.GetNodeTags("node-k"))

    self.assertHandler(rlib2.R_2_nodes_name_tags)

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

  def testAddNodeTags(self):

    self.client.AddNodeTags("node-v", ["awesome"], dry_run=True)

    self.assertHandler(rlib2.R_2_nodes_name_tags)

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

    self.assertDryRun()

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

  def testDeleteNodeTags(self):

    self.client.DeleteNodeTags("node-w", ["awesome"], dry_run=True)

    self.assertHandler(rlib2.R_2_nodes_name_tags)

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

    self.assertDryRun()

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

if __name__ == '__main__':

  if httplib2 is None:

    warnings.warn("These tests require the httplib2 library")

  else:

    testutils.GanetiTestProgram()