ganeti.rapi.client_unittest.py 14.3 KB
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#!/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()