root / test / py / ganeti.hypervisor.hv_xen_unittest.py @ d2e4e099
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#!/usr/bin/python
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#
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# Copyright (C) 2011, 2013 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Script for testing ganeti.hypervisor.hv_xen"""
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import string # pylint: disable=W0402 |
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import unittest |
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import tempfile |
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import shutil |
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import random |
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import os |
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import mock |
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from ganeti import constants |
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from ganeti import objects |
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from ganeti import pathutils |
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from ganeti import hypervisor |
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from ganeti import utils |
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from ganeti import errors |
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from ganeti import compat |
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from ganeti.hypervisor import hv_base |
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from ganeti.hypervisor import hv_xen |
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import testutils |
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# Map from hypervisor class to hypervisor name
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HVCLASS_TO_HVNAME = utils.InvertDict(hypervisor._HYPERVISOR_MAP) |
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class TestConsole(unittest.TestCase): |
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def test(self): |
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
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for cls in [hv_xen.XenPvmHypervisor(), hv_xen.XenHvmHypervisor()]: |
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instance = objects.Instance(name="xen.example.com",
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primary_node="node24828-uuid")
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node = objects.Node(name="node24828", uuid="node24828-uuid") |
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cons = cls.GetInstanceConsole(instance, node, hvparams, {}) |
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self.assertTrue(cons.Validate())
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self.assertEqual(cons.kind, constants.CONS_SSH)
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self.assertEqual(cons.host, node.name)
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self.assertEqual(cons.command[-1], instance.name) |
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class TestCreateConfigCpus(unittest.TestCase): |
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def testEmpty(self): |
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for cpu_mask in [None, ""]: |
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self.assertEqual(hv_xen._CreateConfigCpus(cpu_mask),
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"cpus = [ ]")
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def testAll(self): |
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self.assertEqual(hv_xen._CreateConfigCpus(constants.CPU_PINNING_ALL),
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None)
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def testOne(self): |
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self.assertEqual(hv_xen._CreateConfigCpus("9"), "cpu = \"9\"") |
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def testMultiple(self): |
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self.assertEqual(hv_xen._CreateConfigCpus("0-2,4,5-5:3:all"), |
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("cpus = [ \"0,1,2,4,5\", \"3\", \"%s\" ]" %
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constants.CPU_PINNING_ALL_XEN)) |
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class TestGetCommand(testutils.GanetiTestCase): |
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def testCommandExplicit(self): |
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"""Test the case when the command is given as class parameter explicitly.
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"""
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expected_cmd = "xl"
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hv = hv_xen.XenHypervisor(_cmd=constants.XEN_CMD_XL) |
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self.assertEqual(hv._GetCommand(None), expected_cmd) |
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def testCommandInvalid(self): |
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"""Test the case an invalid command is given as class parameter explicitly.
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"""
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hv = hv_xen.XenHypervisor(_cmd="invalidcommand")
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self.assertRaises(errors.ProgrammerError, hv._GetCommand, None) |
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def testCommandHvparams(self): |
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expected_cmd = "xl"
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test_hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
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hv = hv_xen.XenHypervisor() |
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self.assertEqual(hv._GetCommand(test_hvparams), expected_cmd)
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def testCommandHvparamsInvalid(self): |
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test_hvparams = {} |
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hv = hv_xen.XenHypervisor() |
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self.assertRaises(errors.HypervisorError, hv._GetCommand, test_hvparams)
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def testCommandHvparamsCmdInvalid(self): |
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test_hvparams = {constants.HV_XEN_CMD: "invalidcommand"}
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hv = hv_xen.XenHypervisor() |
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self.assertRaises(errors.ProgrammerError, hv._GetCommand, test_hvparams)
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class TestParseInstanceList(testutils.GanetiTestCase): |
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def test(self): |
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data = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
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# Exclude node
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self.assertEqual(hv_xen._ParseInstanceList(data.splitlines(), False), []) |
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# Include node
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result = hv_xen._ParseInstanceList(data.splitlines(), True)
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self.assertEqual(len(result), 1) |
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self.assertEqual(len(result[0]), 6) |
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# Name
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self.assertEqual(result[0][0], hv_xen._DOM0_NAME) |
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# ID
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self.assertEqual(result[0][1], 0) |
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# Memory
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self.assertEqual(result[0][2], 1023) |
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# VCPUs
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self.assertEqual(result[0][3], 1) |
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# State
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self.assertEqual(result[0][4], hv_base.HvInstanceState.RUNNING) |
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# Time
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self.assertAlmostEqual(result[0][5], 121152.6) |
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def testWrongLineFormat(self): |
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tests = [ |
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["three fields only"],
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["name InvalidID 128 1 r----- 12345"],
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] |
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for lines in tests: |
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try:
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hv_xen._ParseInstanceList(["Header would be here"] + lines, False) |
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except errors.HypervisorError, err:
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self.assertTrue("Can't parse instance list" in str(err)) |
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else:
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self.fail("Exception was not raised") |
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class TestGetInstanceList(testutils.GanetiTestCase): |
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def _Fail(self): |
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return utils.RunResult(constants.EXIT_FAILURE, None, |
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"stdout", "stderr", None, |
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NotImplemented, NotImplemented) |
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def testTimeout(self): |
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fn = testutils.CallCounter(self._Fail)
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try:
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hv_xen._GetRunningInstanceList(fn, False, _timeout=0.1) |
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except errors.HypervisorError, err:
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self.assertTrue("timeout exceeded" in str(err)) |
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else:
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self.fail("Exception was not raised") |
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self.assertTrue(fn.Count() < 10, |
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msg="'xm list' was called too many times")
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def _Success(self, stdout): |
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return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
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NotImplemented, NotImplemented) |
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def testSuccess(self): |
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data = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
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fn = testutils.CallCounter(compat.partial(self._Success, data))
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result = hv_xen._GetRunningInstanceList(fn, True, _timeout=0.1) |
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self.assertEqual(len(result), 4) |
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self.assertEqual(map(compat.fst, result), [ |
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"Domain-0",
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"server01.example.com",
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"web3106215069.example.com",
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"testinstance.example.com",
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]) |
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self.assertEqual(fn.Count(), 1) |
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class TestParseNodeInfo(testutils.GanetiTestCase): |
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def testEmpty(self): |
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self.assertEqual(hv_xen._ParseNodeInfo(""), {}) |
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def testUnknownInput(self): |
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data = "\n".join([
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"foo bar",
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"something else goes",
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"here",
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]) |
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self.assertEqual(hv_xen._ParseNodeInfo(data), {})
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def testBasicInfo(self): |
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data = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
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result = hv_xen._ParseNodeInfo(data) |
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self.assertEqual(result, {
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"cpu_nodes": 1, |
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"cpu_sockets": 2, |
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"cpu_total": 4, |
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"hv_version": (4, 0), |
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"memory_free": 8004, |
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"memory_total": 16378, |
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}) |
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class TestMergeInstanceInfo(testutils.GanetiTestCase): |
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def testEmpty(self): |
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self.assertEqual(hv_xen._MergeInstanceInfo({}, []), {})
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def _FakeXmList(self, include_node): |
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return [
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(hv_xen._DOM0_NAME, NotImplemented, 4096, 7, NotImplemented, |
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NotImplemented),
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("inst1.example.com", NotImplemented, 2048, 4, NotImplemented, |
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NotImplemented),
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] |
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def testMissingNodeInfo(self): |
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instance_list = self._FakeXmList(True) |
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result = hv_xen._MergeInstanceInfo({}, instance_list) |
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self.assertEqual(result, {
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"memory_dom0": 4096, |
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"cpu_dom0": 7, |
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}) |
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def testWithNodeInfo(self): |
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info = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
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instance_list = self._FakeXmList(True) |
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result = hv_xen._GetNodeInfo(info, instance_list) |
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self.assertEqual(result, {
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"cpu_nodes": 1, |
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"cpu_sockets": 2, |
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"cpu_total": 4, |
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"cpu_dom0": 7, |
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"hv_version": (4, 0), |
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"memory_dom0": 4096, |
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"memory_free": 8004, |
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"memory_hv": 2230, |
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"memory_total": 16378, |
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}) |
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class TestGetConfigFileDiskData(unittest.TestCase): |
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def testLetterCount(self): |
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self.assertEqual(len(hv_xen._DISK_LETTERS), 26) |
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def testNoDisks(self): |
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self.assertEqual(hv_xen._GetConfigFileDiskData([], "hd"), []) |
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def testManyDisks(self): |
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for offset in [0, 1, 10]: |
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disks = [(objects.Disk(dev_type=constants.DT_PLAIN), |
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"/tmp/disk/%s" % idx,
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NotImplemented)
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for idx in range(len(hv_xen._DISK_LETTERS) + offset)] |
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if offset == 0: |
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result = hv_xen._GetConfigFileDiskData(disks, "hd")
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self.assertEqual(result, [
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"'phy:/tmp/disk/%s,hd%s,r'" % (idx, string.ascii_lowercase[idx])
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for idx in range(len(hv_xen._DISK_LETTERS) + offset) |
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]) |
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else:
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try:
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hv_xen._GetConfigFileDiskData(disks, "hd")
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except errors.HypervisorError, err:
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self.assertEqual(str(err), "Too many disks") |
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else:
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self.fail("Exception was not raised") |
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def testTwoLvDisksWithMode(self): |
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disks = [ |
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(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDWR), |
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"/tmp/diskFirst",
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NotImplemented),
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(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDONLY), |
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"/tmp/diskLast",
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NotImplemented),
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] |
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result = hv_xen._GetConfigFileDiskData(disks, "hd")
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self.assertEqual(result, [
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"'phy:/tmp/diskFirst,hda,w'",
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"'phy:/tmp/diskLast,hdb,r'",
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]) |
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def testFileDisks(self): |
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disks = [ |
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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logical_id=[constants.FD_LOOP]), |
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"/tmp/diskFirst",
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NotImplemented),
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDONLY, |
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logical_id=[constants.FD_BLKTAP]), |
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"/tmp/diskTwo",
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NotImplemented),
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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logical_id=[constants.FD_LOOP]), |
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"/tmp/diskThree",
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NotImplemented),
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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logical_id=[constants.FD_BLKTAP]), |
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"/tmp/diskLast",
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NotImplemented),
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] |
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result = hv_xen._GetConfigFileDiskData(disks, "sd")
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self.assertEqual(result, [
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"'file:/tmp/diskFirst,sda,w'",
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"'tap:aio:/tmp/diskTwo,sdb,r'",
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"'file:/tmp/diskThree,sdc,w'",
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"'tap:aio:/tmp/diskLast,sdd,w'",
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]) |
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def testInvalidFileDisk(self): |
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disks = [ |
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(objects.Disk(dev_type=constants.DT_FILE, mode=constants.DISK_RDWR, |
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logical_id=["#unknown#"]),
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"/tmp/diskinvalid",
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NotImplemented),
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] |
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self.assertRaises(KeyError, hv_xen._GetConfigFileDiskData, disks, "sd") |
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class TestXenHypervisorRunXen(unittest.TestCase): |
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XEN_SUB_CMD = "help"
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def testCommandUnknown(self): |
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cmd = "#unknown command#"
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self.assertFalse(cmd in constants.KNOWN_XEN_COMMANDS) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=NotImplemented,
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_cmd=cmd) |
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self.assertRaises(errors.ProgrammerError, hv._RunXen, [], None) |
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def testCommandNoHvparams(self): |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=NotImplemented)
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hvparams = None
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self.assertRaises(errors.HypervisorError, hv._RunXen, [self.XEN_SUB_CMD], |
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hvparams) |
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def testCommandFromHvparams(self): |
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expected_xen_cmd = "xl"
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
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mock_run_cmd = mock.Mock() |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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hv._RunXen([self.XEN_SUB_CMD], hvparams=hvparams)
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mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_SUB_CMD])
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class TestXenHypervisorGetInstanceList(unittest.TestCase): |
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RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
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XEN_LIST = "list"
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def testNoHvparams(self): |
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expected_xen_cmd = "xm"
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mock_run_cmd = mock.Mock(return_value=self.RESULT_OK)
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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self.assertRaises(errors.HypervisorError, hv._GetInstanceList, True, None) |
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def testFromHvparams(self): |
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expected_xen_cmd = "xl"
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
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mock_run_cmd = mock.Mock(return_value=self.RESULT_OK)
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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hv._GetInstanceList(True, hvparams)
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mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST])
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class TestXenHypervisorListInstances(unittest.TestCase): |
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RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
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XEN_LIST = "list"
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def testNoHvparams(self): |
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expected_xen_cmd = "xm"
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mock_run_cmd = mock.Mock(return_value=self.RESULT_OK)
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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self.assertRaises(errors.HypervisorError, hv.ListInstances)
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def testHvparamsXl(self): |
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expected_xen_cmd = "xl"
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hvparams = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
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mock_run_cmd = mock.Mock(return_value=self.RESULT_OK)
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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hv.ListInstances(hvparams=hvparams) |
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mock_run_cmd.assert_called_with([expected_xen_cmd, self.XEN_LIST])
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class TestXenHypervisorCheckToolstack(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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self.cfg_name = "xen_config" |
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self.cfg_path = utils.PathJoin(self.tmpdir, self.cfg_name) |
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self.hv = hv_xen.XenHypervisor()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def testBinaryNotFound(self): |
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RESULT_FAILED = utils.RunResult(1, None, "", "", "", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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result = hv._CheckToolstackBinary("xl")
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self.assertFalse(result)
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def testCheckToolstackXlConfigured(self): |
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RESULT_OK = utils.RunResult(0, None, "", "", "", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_OK) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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result = hv._CheckToolstackXlConfigured() |
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self.assertTrue(result)
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|
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def testCheckToolstackXlNotConfigured(self): |
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RESULT_FAILED = utils.RunResult( |
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1, None, "", |
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"ERROR: A different toolstack (xm) has been selected!",
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"", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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result = hv._CheckToolstackXlConfigured() |
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self.assertFalse(result)
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|
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def testCheckToolstackXlFails(self): |
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RESULT_FAILED = utils.RunResult( |
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1, None, "", |
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"ERROR: The pink bunny hid the binary.",
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"", None, None) |
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mock_run_cmd = mock.Mock(return_value=RESULT_FAILED) |
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hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
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_run_cmd_fn=mock_run_cmd) |
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self.assertRaises(errors.HypervisorError, hv._CheckToolstackXlConfigured)
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|
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|
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class TestXenHypervisorWriteConfigFile(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
|
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|
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
|
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|
476 |
def testWriteError(self): |
477 |
cfgdir = utils.PathJoin(self.tmpdir, "foobar") |
478 |
|
479 |
hv = hv_xen.XenHypervisor(_cfgdir=cfgdir, |
480 |
_run_cmd_fn=NotImplemented,
|
481 |
_cmd=NotImplemented)
|
482 |
|
483 |
self.assertFalse(os.path.exists(cfgdir))
|
484 |
|
485 |
try:
|
486 |
hv._WriteConfigFile("name", "data") |
487 |
except errors.HypervisorError, err:
|
488 |
self.assertTrue(str(err).startswith("Cannot write Xen instance")) |
489 |
else:
|
490 |
self.fail("Exception was not raised") |
491 |
|
492 |
|
493 |
class TestXenHypervisorVerify(unittest.TestCase): |
494 |
|
495 |
def setUp(self): |
496 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
497 |
self._result_ok = utils.RunResult(0, None, output, "", "", None, None) |
498 |
|
499 |
def testVerify(self): |
500 |
hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL} |
501 |
mock_run_cmd = mock.Mock(return_value=self._result_ok)
|
502 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
503 |
_run_cmd_fn=mock_run_cmd) |
504 |
hv._CheckToolstack = mock.Mock(return_value=True)
|
505 |
result = hv.Verify(hvparams) |
506 |
self.assertTrue(result is None) |
507 |
|
508 |
def testVerifyToolstackNotOk(self): |
509 |
hvparams = {constants.HV_XEN_CMD : constants.XEN_CMD_XL} |
510 |
mock_run_cmd = mock.Mock(return_value=self._result_ok)
|
511 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
512 |
_run_cmd_fn=mock_run_cmd) |
513 |
hv._CheckToolstack = mock.Mock() |
514 |
hv._CheckToolstack.side_effect = errors.HypervisorError("foo")
|
515 |
result = hv.Verify(hvparams) |
516 |
self.assertTrue(result is not None) |
517 |
|
518 |
def testVerifyFailing(self): |
519 |
result_failed = utils.RunResult(1, None, "", "", "", None, None) |
520 |
mock_run_cmd = mock.Mock(return_value=result_failed) |
521 |
hv = hv_xen.XenHypervisor(_cfgdir=NotImplemented,
|
522 |
_run_cmd_fn=mock_run_cmd) |
523 |
hv._CheckToolstack = mock.Mock(return_value=True)
|
524 |
result = hv.Verify() |
525 |
self.assertTrue(result is not None) |
526 |
|
527 |
|
528 |
class _TestXenHypervisor(object): |
529 |
TARGET = NotImplemented
|
530 |
CMD = NotImplemented
|
531 |
HVNAME = NotImplemented
|
532 |
VALID_HVPARAMS = {constants.HV_XEN_CMD: constants.XEN_CMD_XL} |
533 |
|
534 |
def setUp(self): |
535 |
super(_TestXenHypervisor, self).setUp() |
536 |
|
537 |
self.tmpdir = tempfile.mkdtemp()
|
538 |
|
539 |
self.vncpw = "".join(random.sample(string.ascii_letters, 10)) |
540 |
|
541 |
self.vncpw_path = utils.PathJoin(self.tmpdir, "vncpw") |
542 |
utils.WriteFile(self.vncpw_path, data=self.vncpw) |
543 |
|
544 |
def tearDown(self): |
545 |
super(_TestXenHypervisor, self).tearDown() |
546 |
|
547 |
shutil.rmtree(self.tmpdir)
|
548 |
|
549 |
def _GetHv(self, run_cmd=NotImplemented): |
550 |
return self.TARGET(_cfgdir=self.tmpdir, _run_cmd_fn=run_cmd, _cmd=self.CMD) |
551 |
|
552 |
def _SuccessCommand(self, stdout, cmd): |
553 |
self.assertEqual(cmd[0], self.CMD) |
554 |
|
555 |
return utils.RunResult(constants.EXIT_SUCCESS, None, stdout, "", None, |
556 |
NotImplemented, NotImplemented) |
557 |
|
558 |
def _FailingCommand(self, cmd): |
559 |
self.assertEqual(cmd[0], self.CMD) |
560 |
|
561 |
return utils.RunResult(constants.EXIT_FAILURE, None, |
562 |
"", "This command failed", None, |
563 |
NotImplemented, NotImplemented) |
564 |
|
565 |
def _FakeTcpPing(self, expected, result, target, port, **kwargs): |
566 |
self.assertEqual((target, port), expected)
|
567 |
return result
|
568 |
|
569 |
def testReadingNonExistentConfigFile(self): |
570 |
hv = self._GetHv()
|
571 |
|
572 |
try:
|
573 |
hv._ReadConfigFile("inst15780.example.com")
|
574 |
except errors.HypervisorError, err:
|
575 |
self.assertTrue(str(err).startswith("Failed to load Xen config file:")) |
576 |
else:
|
577 |
self.fail("Exception was not raised") |
578 |
|
579 |
def testRemovingAutoConfigFile(self): |
580 |
name = "inst8206.example.com"
|
581 |
cfgfile = utils.PathJoin(self.tmpdir, name)
|
582 |
autodir = utils.PathJoin(self.tmpdir, "auto") |
583 |
autocfgfile = utils.PathJoin(autodir, name) |
584 |
|
585 |
os.mkdir(autodir) |
586 |
|
587 |
utils.WriteFile(autocfgfile, data="")
|
588 |
|
589 |
hv = self._GetHv()
|
590 |
|
591 |
self.assertTrue(os.path.isfile(autocfgfile))
|
592 |
hv._WriteConfigFile(name, "content")
|
593 |
self.assertFalse(os.path.exists(autocfgfile))
|
594 |
self.assertEqual(utils.ReadFile(cfgfile), "content") |
595 |
|
596 |
def _XenList(self, cmd): |
597 |
self.assertEqual(cmd, [self.CMD, "list"]) |
598 |
|
599 |
# TODO: Use actual data from "xl" command
|
600 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
601 |
|
602 |
return self._SuccessCommand(output, cmd) |
603 |
|
604 |
def testGetInstanceInfo(self): |
605 |
hv = self._GetHv(run_cmd=self._XenList) |
606 |
|
607 |
(name, instid, memory, vcpus, state, runtime) = \ |
608 |
hv.GetInstanceInfo("server01.example.com")
|
609 |
|
610 |
self.assertEqual(name, "server01.example.com") |
611 |
self.assertEqual(instid, 1) |
612 |
self.assertEqual(memory, 1024) |
613 |
self.assertEqual(vcpus, 1) |
614 |
self.assertEqual(state, hv_base.HvInstanceState.RUNNING)
|
615 |
self.assertAlmostEqual(runtime, 167643.2) |
616 |
|
617 |
def testGetInstanceInfoDom0(self): |
618 |
hv = self._GetHv(run_cmd=self._XenList) |
619 |
|
620 |
# TODO: Not sure if this is actually used anywhere (can't find it), but the
|
621 |
# code supports querying for Dom0
|
622 |
(name, instid, memory, vcpus, state, runtime) = \ |
623 |
hv.GetInstanceInfo(hv_xen._DOM0_NAME) |
624 |
|
625 |
self.assertEqual(name, "Domain-0") |
626 |
self.assertEqual(instid, 0) |
627 |
self.assertEqual(memory, 1023) |
628 |
self.assertEqual(vcpus, 1) |
629 |
self.assertEqual(state, hv_base.HvInstanceState.RUNNING)
|
630 |
self.assertAlmostEqual(runtime, 154706.1) |
631 |
|
632 |
def testGetInstanceInfoUnknown(self): |
633 |
hv = self._GetHv(run_cmd=self._XenList) |
634 |
|
635 |
result = hv.GetInstanceInfo("unknown.example.com")
|
636 |
self.assertTrue(result is None) |
637 |
|
638 |
def testGetAllInstancesInfo(self): |
639 |
hv = self._GetHv(run_cmd=self._XenList) |
640 |
|
641 |
result = hv.GetAllInstancesInfo() |
642 |
|
643 |
self.assertEqual(map(compat.fst, result), [ |
644 |
"server01.example.com",
|
645 |
"web3106215069.example.com",
|
646 |
"testinstance.example.com",
|
647 |
]) |
648 |
|
649 |
def testListInstances(self): |
650 |
hv = self._GetHv(run_cmd=self._XenList) |
651 |
|
652 |
self.assertEqual(hv.ListInstances(), [
|
653 |
"server01.example.com",
|
654 |
"web3106215069.example.com",
|
655 |
"testinstance.example.com",
|
656 |
]) |
657 |
|
658 |
def _StartInstanceCommand(self, inst, paused, failcreate, cmd): |
659 |
if cmd == [self.CMD, "info"]: |
660 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
661 |
elif cmd == [self.CMD, "list"]: |
662 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
663 |
elif cmd[:2] == [self.CMD, "create"]: |
664 |
args = cmd[2:]
|
665 |
cfgfile = utils.PathJoin(self.tmpdir, inst.name)
|
666 |
|
667 |
if paused:
|
668 |
self.assertEqual(args, ["-p", cfgfile]) |
669 |
else:
|
670 |
self.assertEqual(args, [cfgfile])
|
671 |
|
672 |
if failcreate:
|
673 |
return self._FailingCommand(cmd) |
674 |
|
675 |
output = ""
|
676 |
else:
|
677 |
self.fail("Unhandled command: %s" % (cmd, )) |
678 |
|
679 |
return self._SuccessCommand(output, cmd) |
680 |
|
681 |
def _MakeInstance(self): |
682 |
# Copy default parameters
|
683 |
bep = objects.FillDict(constants.BEC_DEFAULTS, {}) |
684 |
hvp = objects.FillDict(constants.HVC_DEFAULTS[self.HVNAME], {})
|
685 |
|
686 |
# Override default VNC password file path
|
687 |
if constants.HV_VNC_PASSWORD_FILE in hvp: |
688 |
hvp[constants.HV_VNC_PASSWORD_FILE] = self.vncpw_path
|
689 |
|
690 |
disks = [ |
691 |
(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDWR), |
692 |
utils.PathJoin(self.tmpdir, "disk0"), |
693 |
NotImplemented),
|
694 |
(objects.Disk(dev_type=constants.DT_PLAIN, mode=constants.DISK_RDONLY), |
695 |
utils.PathJoin(self.tmpdir, "disk1"), |
696 |
NotImplemented),
|
697 |
] |
698 |
|
699 |
inst = objects.Instance(name="server01.example.com",
|
700 |
hvparams=hvp, beparams=bep, |
701 |
osparams={}, nics=[], os="deb1",
|
702 |
disks=map(compat.fst, disks))
|
703 |
inst.UpgradeConfig() |
704 |
|
705 |
return (inst, disks)
|
706 |
|
707 |
def testStartInstance(self): |
708 |
(inst, disks) = self._MakeInstance()
|
709 |
pathutils.LOG_XEN_DIR = self.tmpdir
|
710 |
|
711 |
for failcreate in [False, True]: |
712 |
for paused in [False, True]: |
713 |
run_cmd = compat.partial(self._StartInstanceCommand,
|
714 |
inst, paused, failcreate) |
715 |
|
716 |
hv = self._GetHv(run_cmd=run_cmd)
|
717 |
|
718 |
# Ensure instance is not listed
|
719 |
self.assertTrue(inst.name not in hv.ListInstances()) |
720 |
|
721 |
# Remove configuration
|
722 |
cfgfile = utils.PathJoin(self.tmpdir, inst.name)
|
723 |
utils.RemoveFile(cfgfile) |
724 |
|
725 |
if failcreate:
|
726 |
self.assertRaises(errors.HypervisorError, hv.StartInstance,
|
727 |
inst, disks, paused) |
728 |
# Check whether a stale config file is left behind
|
729 |
self.assertFalse(os.path.exists(cfgfile))
|
730 |
else:
|
731 |
hv.StartInstance(inst, disks, paused) |
732 |
# Check if configuration was updated
|
733 |
lines = utils.ReadFile(cfgfile).splitlines() |
734 |
|
735 |
if constants.HV_VNC_PASSWORD_FILE in inst.hvparams: |
736 |
self.assertTrue(("vncpasswd = '%s'" % self.vncpw) in lines) |
737 |
else:
|
738 |
extra = inst.hvparams[constants.HV_KERNEL_ARGS] |
739 |
self.assertTrue(("extra = '%s'" % extra) in lines) |
740 |
|
741 |
def _StopInstanceCommand(self, instance_name, force, fail, cmd): |
742 |
if (cmd == [self.CMD, "list"]): |
743 |
output = "Name ID Mem VCPUs State Time(s)\n" \
|
744 |
"Domain-0 0 1023 1 r----- 142691.0\n" \
|
745 |
"%s 417 128 1 r----- 3.2\n" % instance_name
|
746 |
elif cmd[:2] == [self.CMD, "destroy"]: |
747 |
self.assertEqual(cmd[2:], [instance_name]) |
748 |
output = ""
|
749 |
elif not force and cmd[:3] == [self.CMD, "shutdown", "-w"]: |
750 |
self.assertEqual(cmd[3:], [instance_name]) |
751 |
output = ""
|
752 |
else:
|
753 |
self.fail("Unhandled command: %s" % (cmd, )) |
754 |
|
755 |
if fail:
|
756 |
# Simulate a failing command
|
757 |
return self._FailingCommand(cmd) |
758 |
else:
|
759 |
return self._SuccessCommand(output, cmd) |
760 |
|
761 |
def testStopInstance(self): |
762 |
name = "inst4284.example.com"
|
763 |
cfgfile = utils.PathJoin(self.tmpdir, name)
|
764 |
cfgdata = "config file content\n"
|
765 |
|
766 |
for force in [False, True]: |
767 |
for fail in [False, True]: |
768 |
utils.WriteFile(cfgfile, data=cfgdata) |
769 |
|
770 |
run_cmd = compat.partial(self._StopInstanceCommand, name, force, fail)
|
771 |
|
772 |
hv = self._GetHv(run_cmd=run_cmd)
|
773 |
|
774 |
self.assertTrue(os.path.isfile(cfgfile))
|
775 |
|
776 |
if fail:
|
777 |
try:
|
778 |
hv._StopInstance(name, force, None)
|
779 |
except errors.HypervisorError, err:
|
780 |
self.assertTrue(str(err).startswith("listing instances failed"), |
781 |
msg=str(err))
|
782 |
else:
|
783 |
self.fail("Exception was not raised") |
784 |
self.assertEqual(utils.ReadFile(cfgfile), cfgdata,
|
785 |
msg=("Configuration was removed when stopping"
|
786 |
" instance failed"))
|
787 |
else:
|
788 |
hv._StopInstance(name, force, None)
|
789 |
self.assertFalse(os.path.exists(cfgfile))
|
790 |
|
791 |
def _MigrateNonRunningInstCmd(self, cmd): |
792 |
if cmd == [self.CMD, "list"]: |
793 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-dom0-only.txt")
|
794 |
else:
|
795 |
self.fail("Unhandled command: %s" % (cmd, )) |
796 |
|
797 |
return self._SuccessCommand(output, cmd) |
798 |
|
799 |
def testMigrateInstanceNotRunning(self): |
800 |
name = "nonexistinginstance.example.com"
|
801 |
target = constants.IP4_ADDRESS_LOCALHOST |
802 |
port = 14618
|
803 |
|
804 |
hv = self._GetHv(run_cmd=self._MigrateNonRunningInstCmd) |
805 |
|
806 |
for live in [False, True]: |
807 |
try:
|
808 |
hv._MigrateInstance(NotImplemented, name, target, port, live,
|
809 |
self.VALID_HVPARAMS, _ping_fn=NotImplemented) |
810 |
except errors.HypervisorError, err:
|
811 |
self.assertEqual(str(err), "Instance not running, cannot migrate") |
812 |
else:
|
813 |
self.fail("Exception was not raised") |
814 |
|
815 |
def _MigrateInstTargetUnreachCmd(self, cmd): |
816 |
if cmd == [self.CMD, "list"]: |
817 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
818 |
else:
|
819 |
self.fail("Unhandled command: %s" % (cmd, )) |
820 |
|
821 |
return self._SuccessCommand(output, cmd) |
822 |
|
823 |
def testMigrateTargetUnreachable(self): |
824 |
name = "server01.example.com"
|
825 |
target = constants.IP4_ADDRESS_LOCALHOST |
826 |
port = 28349
|
827 |
|
828 |
hv = self._GetHv(run_cmd=self._MigrateInstTargetUnreachCmd) |
829 |
hvparams = {constants.HV_XEN_CMD: self.CMD}
|
830 |
|
831 |
for live in [False, True]: |
832 |
if self.CMD == constants.XEN_CMD_XL: |
833 |
# TODO: Detect unreachable targets
|
834 |
pass
|
835 |
else:
|
836 |
try:
|
837 |
hv._MigrateInstance(NotImplemented, name, target, port, live,
|
838 |
hvparams, |
839 |
_ping_fn=compat.partial(self._FakeTcpPing,
|
840 |
(target, port), False))
|
841 |
except errors.HypervisorError, err:
|
842 |
wanted = "Remote host %s not" % target
|
843 |
self.assertTrue(str(err).startswith(wanted)) |
844 |
else:
|
845 |
self.fail("Exception was not raised") |
846 |
|
847 |
def _MigrateInstanceCmd(self, cluster_name, instance_name, target, port, |
848 |
live, fail, cmd): |
849 |
if cmd == [self.CMD, "list"]: |
850 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
851 |
elif cmd[:2] == [self.CMD, "migrate"]: |
852 |
if self.CMD == constants.XEN_CMD_XM: |
853 |
args = ["-p", str(port)] |
854 |
|
855 |
if live:
|
856 |
args.append("-l")
|
857 |
|
858 |
elif self.CMD == constants.XEN_CMD_XL: |
859 |
args = [ |
860 |
"-s", constants.XL_SSH_CMD % cluster_name,
|
861 |
"-C", utils.PathJoin(self.tmpdir, instance_name), |
862 |
] |
863 |
|
864 |
else:
|
865 |
self.fail("Unknown Xen command '%s'" % self.CMD) |
866 |
|
867 |
args.extend([instance_name, target]) |
868 |
self.assertEqual(cmd[2:], args) |
869 |
|
870 |
if fail:
|
871 |
return self._FailingCommand(cmd) |
872 |
|
873 |
output = ""
|
874 |
else:
|
875 |
self.fail("Unhandled command: %s" % (cmd, )) |
876 |
|
877 |
return self._SuccessCommand(output, cmd) |
878 |
|
879 |
def testMigrateInstance(self): |
880 |
clustername = "cluster.example.com"
|
881 |
instname = "server01.example.com"
|
882 |
target = constants.IP4_ADDRESS_LOCALHOST |
883 |
port = 22364
|
884 |
|
885 |
hvparams = {constants.HV_XEN_CMD: self.CMD}
|
886 |
|
887 |
for live in [False, True]: |
888 |
for fail in [False, True]: |
889 |
ping_fn = \ |
890 |
testutils.CallCounter(compat.partial(self._FakeTcpPing,
|
891 |
(target, port), True))
|
892 |
|
893 |
run_cmd = \ |
894 |
compat.partial(self._MigrateInstanceCmd,
|
895 |
clustername, instname, target, port, live, |
896 |
fail) |
897 |
|
898 |
hv = self._GetHv(run_cmd=run_cmd)
|
899 |
|
900 |
if fail:
|
901 |
try:
|
902 |
hv._MigrateInstance(clustername, instname, target, port, live, |
903 |
hvparams, _ping_fn=ping_fn) |
904 |
except errors.HypervisorError, err:
|
905 |
self.assertTrue(str(err).startswith("Failed to migrate instance")) |
906 |
else:
|
907 |
self.fail("Exception was not raised") |
908 |
else:
|
909 |
hv._MigrateInstance(clustername, instname, target, port, live, |
910 |
hvparams, _ping_fn=ping_fn) |
911 |
|
912 |
if self.CMD == constants.XEN_CMD_XM: |
913 |
expected_pings = 1
|
914 |
else:
|
915 |
expected_pings = 0
|
916 |
|
917 |
self.assertEqual(ping_fn.Count(), expected_pings)
|
918 |
|
919 |
def _GetNodeInfoCmd(self, fail, cmd): |
920 |
if cmd == [self.CMD, "info"]: |
921 |
if fail:
|
922 |
return self._FailingCommand(cmd) |
923 |
else:
|
924 |
output = testutils.ReadTestData("xen-xm-info-4.0.1.txt")
|
925 |
elif cmd == [self.CMD, "list"]: |
926 |
if fail:
|
927 |
self.fail("'xm list' shouldn't be called when 'xm info' failed") |
928 |
else:
|
929 |
output = testutils.ReadTestData("xen-xm-list-4.0.1-four-instances.txt")
|
930 |
else:
|
931 |
self.fail("Unhandled command: %s" % (cmd, )) |
932 |
|
933 |
return self._SuccessCommand(output, cmd) |
934 |
|
935 |
def testGetNodeInfo(self): |
936 |
run_cmd = compat.partial(self._GetNodeInfoCmd, False) |
937 |
hv = self._GetHv(run_cmd=run_cmd)
|
938 |
result = hv.GetNodeInfo() |
939 |
|
940 |
self.assertEqual(result["hv_version"], (4, 0)) |
941 |
self.assertEqual(result["memory_free"], 8004) |
942 |
|
943 |
def testGetNodeInfoFailing(self): |
944 |
run_cmd = compat.partial(self._GetNodeInfoCmd, True) |
945 |
hv = self._GetHv(run_cmd=run_cmd)
|
946 |
self.assertTrue(hv.GetNodeInfo() is None) |
947 |
|
948 |
|
949 |
def _MakeTestClass(cls, cmd): |
950 |
"""Makes a class for testing.
|
951 |
|
952 |
The returned class has structure as shown in the following pseudo code:
|
953 |
|
954 |
class Test{cls.__name__}{cmd}(_TestXenHypervisor, unittest.TestCase):
|
955 |
TARGET = {cls}
|
956 |
CMD = {cmd}
|
957 |
HVNAME = {Hypervisor name retrieved using class}
|
958 |
|
959 |
@type cls: class
|
960 |
@param cls: Hypervisor class to be tested
|
961 |
@type cmd: string
|
962 |
@param cmd: Hypervisor command
|
963 |
@rtype: tuple
|
964 |
@return: Class name and class object (not instance)
|
965 |
|
966 |
"""
|
967 |
name = "Test%sCmd%s" % (cls.__name__, cmd.title())
|
968 |
bases = (_TestXenHypervisor, unittest.TestCase) |
969 |
hvname = HVCLASS_TO_HVNAME[cls] |
970 |
|
971 |
return (name, type(name, bases, dict(TARGET=cls, CMD=cmd, HVNAME=hvname))) |
972 |
|
973 |
|
974 |
# Create test classes programmatically instead of manually to reduce the risk
|
975 |
# of forgetting some combinations
|
976 |
for cls in [hv_xen.XenPvmHypervisor, hv_xen.XenHvmHypervisor]: |
977 |
for cmd in constants.KNOWN_XEN_COMMANDS: |
978 |
(name, testcls) = _MakeTestClass(cls, cmd) |
979 |
|
980 |
assert name not in locals() |
981 |
|
982 |
locals()[name] = testcls
|
983 |
|
984 |
|
985 |
if __name__ == "__main__": |
986 |
testutils.GanetiTestProgram() |