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#!/usr/bin/python
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#
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# Copyright (C) 2008, 2011 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 unittesting the cmdlib module"""
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import os
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import unittest
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import time
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import tempfile
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import shutil
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import operator
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import itertools
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from ganeti import constants
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from ganeti import mcpu
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from ganeti import cmdlib
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from ganeti import opcodes
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from ganeti import errors
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from ganeti import utils
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from ganeti import luxi
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from ganeti import ht
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from ganeti import objects
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from ganeti import compat
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from ganeti import rpc
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from ganeti.hypervisor import hv_xen
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import testutils
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import mocks
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class TestCertVerification(testutils.GanetiTestCase):
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  def setUp(self):
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    testutils.GanetiTestCase.setUp(self)
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    self.tmpdir = tempfile.mkdtemp()
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  def tearDown(self):
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    shutil.rmtree(self.tmpdir)
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  def testVerifyCertificate(self):
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    cmdlib._VerifyCertificate(self._TestDataFilename("cert1.pem"))
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    nonexist_filename = os.path.join(self.tmpdir, "does-not-exist")
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    (errcode, msg) = cmdlib._VerifyCertificate(nonexist_filename)
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    self.assertEqual(errcode, cmdlib.LUClusterVerifyConfig.ETYPE_ERROR)
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    # Try to load non-certificate file
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    invalid_cert = self._TestDataFilename("bdev-net.txt")
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    (errcode, msg) = cmdlib._VerifyCertificate(invalid_cert)
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    self.assertEqual(errcode, cmdlib.LUClusterVerifyConfig.ETYPE_ERROR)
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class TestOpcodeParams(testutils.GanetiTestCase):
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  def testParamsStructures(self):
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    for op in sorted(mcpu.Processor.DISPATCH_TABLE):
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      lu = mcpu.Processor.DISPATCH_TABLE[op]
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      lu_name = lu.__name__
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      self.failIf(hasattr(lu, "_OP_REQP"),
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                  msg=("LU '%s' has old-style _OP_REQP" % lu_name))
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      self.failIf(hasattr(lu, "_OP_DEFS"),
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                  msg=("LU '%s' has old-style _OP_DEFS" % lu_name))
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      self.failIf(hasattr(lu, "_OP_PARAMS"),
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                  msg=("LU '%s' has old-style _OP_PARAMS" % lu_name))
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class TestIAllocatorChecks(testutils.GanetiTestCase):
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  def testFunction(self):
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    class TestLU(object):
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      def __init__(self, opcode):
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        self.cfg = mocks.FakeConfig()
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        self.op = opcode
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    class OpTest(opcodes.OpCode):
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       OP_PARAMS = [
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        ("iallocator", None, ht.NoType, None),
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        ("node", None, ht.NoType, None),
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        ]
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    default_iallocator = mocks.FakeConfig().GetDefaultIAllocator()
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    other_iallocator = default_iallocator + "_not"
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    op = OpTest()
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    lu = TestLU(op)
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    c_i = lambda: cmdlib._CheckIAllocatorOrNode(lu, "iallocator", "node")
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    # Neither node nor iallocator given
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    op.iallocator = None
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    op.node = None
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    c_i()
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    self.assertEqual(lu.op.iallocator, default_iallocator)
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    self.assertEqual(lu.op.node, None)
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    # Both, iallocator and node given
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    op.iallocator = "test"
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    op.node = "test"
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    self.assertRaises(errors.OpPrereqError, c_i)
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    # Only iallocator given
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    op.iallocator = other_iallocator
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    op.node = None
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    c_i()
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    self.assertEqual(lu.op.iallocator, other_iallocator)
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    self.assertEqual(lu.op.node, None)
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    # Only node given
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    op.iallocator = None
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    op.node = "node"
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    c_i()
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    self.assertEqual(lu.op.iallocator, None)
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    self.assertEqual(lu.op.node, "node")
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    # No node, iallocator or default iallocator
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    op.iallocator = None
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    op.node = None
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    lu.cfg.GetDefaultIAllocator = lambda: None
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    self.assertRaises(errors.OpPrereqError, c_i)
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class TestLUTestJqueue(unittest.TestCase):
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  def test(self):
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    self.assert_(cmdlib.LUTestJqueue._CLIENT_CONNECT_TIMEOUT <
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                 (luxi.WFJC_TIMEOUT * 0.75),
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                 msg=("Client timeout too high, might not notice bugs"
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                      " in WaitForJobChange"))
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class TestLUQuery(unittest.TestCase):
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  def test(self):
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    self.assertEqual(sorted(cmdlib._QUERY_IMPL.keys()),
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                     sorted(constants.QR_VIA_OP))
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    assert constants.QR_NODE in constants.QR_VIA_OP
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    assert constants.QR_INSTANCE in constants.QR_VIA_OP
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    for i in constants.QR_VIA_OP:
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      self.assert_(cmdlib._GetQueryImplementation(i))
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    self.assertRaises(errors.OpPrereqError, cmdlib._GetQueryImplementation, "")
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    self.assertRaises(errors.OpPrereqError, cmdlib._GetQueryImplementation,
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                      "xyz")
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class TestLUGroupAssignNodes(unittest.TestCase):
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  def testCheckAssignmentForSplitInstances(self):
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    node_data = dict((name, objects.Node(name=name, group=group))
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                     for (name, group) in [("n1a", "g1"), ("n1b", "g1"),
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                                           ("n2a", "g2"), ("n2b", "g2"),
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                                           ("n3a", "g3"), ("n3b", "g3"),
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                                           ("n3c", "g3"),
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                                           ])
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    def Instance(name, pnode, snode):
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      if snode is None:
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        disks = []
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        disk_template = constants.DT_DISKLESS
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      else:
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        disks = [objects.Disk(dev_type=constants.LD_DRBD8,
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                              logical_id=[pnode, snode, 1, 17, 17])]
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        disk_template = constants.DT_DRBD8
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      return objects.Instance(name=name, primary_node=pnode, disks=disks,
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                              disk_template=disk_template)
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    instance_data = dict((name, Instance(name, pnode, snode))
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                         for name, pnode, snode in [("inst1a", "n1a", "n1b"),
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                                                    ("inst1b", "n1b", "n1a"),
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                                                    ("inst2a", "n2a", "n2b"),
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                                                    ("inst3a", "n3a", None),
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                                                    ("inst3b", "n3b", "n1b"),
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                                                    ("inst3c", "n3b", "n2b"),
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                                                    ])
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    # Test first with the existing state.
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    (new, prev) = \
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      cmdlib.LUGroupAssignNodes.CheckAssignmentForSplitInstances([],
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                                                                 node_data,
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                                                                 instance_data)
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    self.assertEqual([], new)
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    self.assertEqual(set(["inst3b", "inst3c"]), set(prev))
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    # And now some changes.
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    (new, prev) = \
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      cmdlib.LUGroupAssignNodes.CheckAssignmentForSplitInstances([("n1b",
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                                                                   "g3")],
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                                                                 node_data,
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                                                                 instance_data)
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    self.assertEqual(set(["inst1a", "inst1b"]), set(new))
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    self.assertEqual(set(["inst3c"]), set(prev))
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class TestClusterVerifySsh(unittest.TestCase):
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  def testMultipleGroups(self):
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    fn = cmdlib.LUClusterVerifyGroup._SelectSshCheckNodes
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    mygroupnodes = [
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      objects.Node(name="node20", group="my", offline=False),
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      objects.Node(name="node21", group="my", offline=False),
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      objects.Node(name="node22", group="my", offline=False),
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      objects.Node(name="node23", group="my", offline=False),
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      objects.Node(name="node24", group="my", offline=False),
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      objects.Node(name="node25", group="my", offline=False),
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      objects.Node(name="node26", group="my", offline=True),
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      ]
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    nodes = [
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      objects.Node(name="node1", group="g1", offline=True),
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      objects.Node(name="node2", group="g1", offline=False),
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      objects.Node(name="node3", group="g1", offline=False),
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      objects.Node(name="node4", group="g1", offline=True),
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      objects.Node(name="node5", group="g1", offline=False),
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      objects.Node(name="node10", group="xyz", offline=False),
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      objects.Node(name="node11", group="xyz", offline=False),
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      objects.Node(name="node40", group="alloff", offline=True),
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      objects.Node(name="node41", group="alloff", offline=True),
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      objects.Node(name="node50", group="aaa", offline=False),
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      ] + mygroupnodes
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    assert not utils.FindDuplicates(map(operator.attrgetter("name"), nodes))
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    (online, perhost) = fn(mygroupnodes, "my", nodes)
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    self.assertEqual(online, ["node%s" % i for i in range(20, 26)])
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    self.assertEqual(set(perhost.keys()), set(online))
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    self.assertEqual(perhost, {
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      "node20": ["node10", "node2", "node50"],
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      "node21": ["node11", "node3", "node50"],
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      "node22": ["node10", "node5", "node50"],
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      "node23": ["node11", "node2", "node50"],
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      "node24": ["node10", "node3", "node50"],
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      "node25": ["node11", "node5", "node50"],
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      })
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  def testSingleGroup(self):
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    fn = cmdlib.LUClusterVerifyGroup._SelectSshCheckNodes
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    nodes = [
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      objects.Node(name="node1", group="default", offline=True),
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      objects.Node(name="node2", group="default", offline=False),
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      objects.Node(name="node3", group="default", offline=False),
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      objects.Node(name="node4", group="default", offline=True),
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      ]
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    assert not utils.FindDuplicates(map(operator.attrgetter("name"), nodes))
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    (online, perhost) = fn(nodes, "default", nodes)
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    self.assertEqual(online, ["node2", "node3"])
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    self.assertEqual(set(perhost.keys()), set(online))
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    self.assertEqual(perhost, {
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      "node2": [],
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      "node3": [],
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      })
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class TestClusterVerifyFiles(unittest.TestCase):
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  @staticmethod
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  def _FakeErrorIf(errors, cond, ecode, item, msg, *args, **kwargs):
277
    assert ((ecode == constants.CV_ENODEFILECHECK and
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             ht.TNonEmptyString(item)) or
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            (ecode == constants.CV_ECLUSTERFILECHECK and
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             item is None))
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    if args:
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      msg = msg % args
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285
    if cond:
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      errors.append((item, msg))
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  _VerifyFiles = cmdlib.LUClusterVerifyGroup._VerifyFiles
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  def test(self):
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    errors = []
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    master_name = "master.example.com"
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    nodeinfo = [
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      objects.Node(name=master_name, offline=False, vm_capable=True),
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      objects.Node(name="node2.example.com", offline=False, vm_capable=True),
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      objects.Node(name="node3.example.com", master_candidate=True,
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                   vm_capable=False),
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      objects.Node(name="node4.example.com", offline=False, vm_capable=True),
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      objects.Node(name="nodata.example.com", offline=False, vm_capable=True),
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      objects.Node(name="offline.example.com", offline=True),
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      ]
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    cluster = objects.Cluster(modify_etc_hosts=True,
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                              enabled_hypervisors=[constants.HT_XEN_HVM])
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    files_all = set([
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      constants.CLUSTER_DOMAIN_SECRET_FILE,
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      constants.RAPI_CERT_FILE,
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      constants.RAPI_USERS_FILE,
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      ])
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    files_opt = set([
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      constants.RAPI_USERS_FILE,
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      hv_xen.XL_CONFIG_FILE,
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      constants.VNC_PASSWORD_FILE,
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      ])
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    files_mc = set([
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      constants.CLUSTER_CONF_FILE,
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      ])
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    files_vm = set([
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      hv_xen.XEND_CONFIG_FILE,
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      hv_xen.XL_CONFIG_FILE,
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      constants.VNC_PASSWORD_FILE,
321
      ])
322
    nvinfo = {
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      master_name: rpc.RpcResult(data=(True, {
324
        constants.NV_FILELIST: {
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          constants.CLUSTER_CONF_FILE: "82314f897f38b35f9dab2f7c6b1593e0",
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          constants.RAPI_CERT_FILE: "babbce8f387bc082228e544a2146fee4",
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          constants.CLUSTER_DOMAIN_SECRET_FILE: "cds-47b5b3f19202936bb4",
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          hv_xen.XEND_CONFIG_FILE: "b4a8a824ab3cac3d88839a9adeadf310",
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          hv_xen.XL_CONFIG_FILE: "77935cee92afd26d162f9e525e3d49b9"
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        }})),
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      "node2.example.com": rpc.RpcResult(data=(True, {
332
        constants.NV_FILELIST: {
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          constants.RAPI_CERT_FILE: "97f0356500e866387f4b84233848cc4a",
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          hv_xen.XEND_CONFIG_FILE: "b4a8a824ab3cac3d88839a9adeadf310",
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          }
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        })),
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      "node3.example.com": rpc.RpcResult(data=(True, {
338
        constants.NV_FILELIST: {
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          constants.RAPI_CERT_FILE: "97f0356500e866387f4b84233848cc4a",
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          constants.CLUSTER_DOMAIN_SECRET_FILE: "cds-47b5b3f19202936bb4",
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          }
342
        })),
343
      "node4.example.com": rpc.RpcResult(data=(True, {
344
        constants.NV_FILELIST: {
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          constants.RAPI_CERT_FILE: "97f0356500e866387f4b84233848cc4a",
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          constants.CLUSTER_CONF_FILE: "conf-a6d4b13e407867f7a7b4f0f232a8f527",
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          constants.CLUSTER_DOMAIN_SECRET_FILE: "cds-47b5b3f19202936bb4",
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          constants.RAPI_USERS_FILE: "rapiusers-ea3271e8d810ef3",
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          hv_xen.XL_CONFIG_FILE: "77935cee92afd26d162f9e525e3d49b9"
350
          }
351
        })),
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      "nodata.example.com": rpc.RpcResult(data=(True, {})),
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      "offline.example.com": rpc.RpcResult(offline=True),
354
      }
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    assert set(nvinfo.keys()) == set(map(operator.attrgetter("name"), nodeinfo))
356

    
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    self._VerifyFiles(compat.partial(self._FakeErrorIf, errors), nodeinfo,
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                      master_name, nvinfo,
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                      (files_all, files_opt, files_mc, files_vm))
360
    self.assertEqual(sorted(errors), sorted([
361
      (None, ("File %s found with 2 different checksums (variant 1 on"
362
              " node2.example.com, node3.example.com, node4.example.com;"
363
              " variant 2 on master.example.com)" % constants.RAPI_CERT_FILE)),
364
      (None, ("File %s is missing from node(s) node2.example.com" %
365
              constants.CLUSTER_DOMAIN_SECRET_FILE)),
366
      (None, ("File %s should not exist on node(s) node4.example.com" %
367
              constants.CLUSTER_CONF_FILE)),
368
      (None, ("File %s is missing from node(s) node4.example.com" %
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              hv_xen.XEND_CONFIG_FILE)),
370
      (None, ("File %s is missing from node(s) node3.example.com" %
371
              constants.CLUSTER_CONF_FILE)),
372
      (None, ("File %s found with 2 different checksums (variant 1 on"
373
              " master.example.com; variant 2 on node4.example.com)" %
374
              constants.CLUSTER_CONF_FILE)),
375
      (None, ("File %s is optional, but it must exist on all or no nodes (not"
376
              " found on master.example.com, node2.example.com,"
377
              " node3.example.com)" % constants.RAPI_USERS_FILE)),
378
      (None, ("File %s is optional, but it must exist on all or no nodes (not"
379
              " found on node2.example.com)" % hv_xen.XL_CONFIG_FILE)),
380
      ("nodata.example.com", "Node did not return file checksum data"),
381
      ]))
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383

    
384
class _FakeLU:
385
  def __init__(self, cfg=NotImplemented, proc=NotImplemented):
386
    self.warning_log = []
387
    self.info_log = []
388
    self.cfg = cfg
389
    self.proc = proc
390

    
391
  def LogWarning(self, text, *args):
392
    self.warning_log.append((text, args))
393

    
394
  def LogInfo(self, text, *args):
395
    self.info_log.append((text, args))
396

    
397

    
398
class TestLoadNodeEvacResult(unittest.TestCase):
399
  def testSuccess(self):
400
    for moved in [[], [
401
      ("inst20153.example.com", "grp2", ["nodeA4509", "nodeB2912"]),
402
      ]]:
403
      for early_release in [False, True]:
404
        for use_nodes in [False, True]:
405
          jobs = [
406
            [opcodes.OpInstanceReplaceDisks().__getstate__()],
407
            [opcodes.OpInstanceMigrate().__getstate__()],
408
            ]
409

    
410
          alloc_result = (moved, [], jobs)
411
          assert cmdlib.IAllocator._NEVAC_RESULT(alloc_result)
412

    
413
          lu = _FakeLU()
414
          result = cmdlib._LoadNodeEvacResult(lu, alloc_result,
415
                                              early_release, use_nodes)
416

    
417
          if moved:
418
            (_, (info_args, )) = lu.info_log.pop(0)
419
            for (instname, instgroup, instnodes) in moved:
420
              self.assertTrue(instname in info_args)
421
              if use_nodes:
422
                for i in instnodes:
423
                  self.assertTrue(i in info_args)
424
              else:
425
                self.assertTrue(instgroup in info_args)
426

    
427
          self.assertFalse(lu.info_log)
428
          self.assertFalse(lu.warning_log)
429

    
430
          for op in itertools.chain(*result):
431
            if hasattr(op.__class__, "early_release"):
432
              self.assertEqual(op.early_release, early_release)
433
            else:
434
              self.assertFalse(hasattr(op, "early_release"))
435

    
436
  def testFailed(self):
437
    alloc_result = ([], [
438
      ("inst5191.example.com", "errormsg21178"),
439
      ], [])
440
    assert cmdlib.IAllocator._NEVAC_RESULT(alloc_result)
441

    
442
    lu = _FakeLU()
443
    self.assertRaises(errors.OpExecError, cmdlib._LoadNodeEvacResult,
444
                      lu, alloc_result, False, False)
445
    self.assertFalse(lu.info_log)
446
    (_, (args, )) = lu.warning_log.pop(0)
447
    self.assertTrue("inst5191.example.com" in args)
448
    self.assertTrue("errormsg21178" in args)
449
    self.assertFalse(lu.warning_log)
450

    
451

    
452
class TestUpdateAndVerifySubDict(unittest.TestCase):
453
  def setUp(self):
454
    self.type_check = {
455
        "a": constants.VTYPE_INT,
456
        "b": constants.VTYPE_STRING,
457
        "c": constants.VTYPE_BOOL,
458
        "d": constants.VTYPE_STRING,
459
        }
460

    
461
  def test(self):
462
    old_test = {
463
      "foo": {
464
        "d": "blubb",
465
        "a": 321,
466
        },
467
      "baz": {
468
        "a": 678,
469
        "b": "678",
470
        "c": True,
471
        },
472
      }
473
    test = {
474
      "foo": {
475
        "a": 123,
476
        "b": "123",
477
        "c": True,
478
        },
479
      "bar": {
480
        "a": 321,
481
        "b": "321",
482
        "c": False,
483
        },
484
      }
485

    
486
    mv = {
487
      "foo": {
488
        "a": 123,
489
        "b": "123",
490
        "c": True,
491
        "d": "blubb"
492
        },
493
      "bar": {
494
        "a": 321,
495
        "b": "321",
496
        "c": False,
497
        },
498
      "baz": {
499
        "a": 678,
500
        "b": "678",
501
        "c": True,
502
        },
503
      }
504

    
505
    verified = cmdlib._UpdateAndVerifySubDict(old_test, test, self.type_check)
506
    self.assertEqual(verified, mv)
507

    
508
  def testWrong(self):
509
    test = {
510
      "foo": {
511
        "a": "blubb",
512
        "b": "123",
513
        "c": True,
514
        },
515
      "bar": {
516
        "a": 321,
517
        "b": "321",
518
        "c": False,
519
        },
520
      }
521

    
522
    self.assertRaises(errors.TypeEnforcementError,
523
                      cmdlib._UpdateAndVerifySubDict, {}, test, self.type_check)
524

    
525

    
526
class TestHvStateHelper(unittest.TestCase):
527
  def testWithoutOpData(self):
528
    self.assertEqual(cmdlib._MergeAndVerifyHvState(None, NotImplemented), None)
529

    
530
  def testWithoutOldData(self):
531
    new = {
532
      constants.HT_XEN_PVM: {
533
        constants.HVST_MEMORY_TOTAL: 4096,
534
        },
535
      }
536
    self.assertEqual(cmdlib._MergeAndVerifyHvState(new, None), new)
537

    
538
  def testWithWrongHv(self):
539
    new = {
540
      "i-dont-exist": {
541
        constants.HVST_MEMORY_TOTAL: 4096,
542
        },
543
      }
544
    self.assertRaises(errors.OpPrereqError, cmdlib._MergeAndVerifyHvState, new,
545
                      None)
546

    
547
class TestDiskStateHelper(unittest.TestCase):
548
  def testWithoutOpData(self):
549
    self.assertEqual(cmdlib._MergeAndVerifyDiskState(None, NotImplemented),
550
                     None)
551

    
552
  def testWithoutOldData(self):
553
    new = {
554
      constants.LD_LV: {
555
        "xenvg": {
556
          constants.DS_DISK_RESERVED: 1024,
557
          },
558
        },
559
      }
560
    self.assertEqual(cmdlib._MergeAndVerifyDiskState(new, None), new)
561

    
562
  def testWithWrongStorageType(self):
563
    new = {
564
      "i-dont-exist": {
565
        "xenvg": {
566
          constants.DS_DISK_RESERVED: 1024,
567
          },
568
        },
569
      }
570
    self.assertRaises(errors.OpPrereqError, cmdlib._MergeAndVerifyDiskState,
571
                      new, None)
572

    
573

    
574
class TestComputeMinMaxSpec(unittest.TestCase):
575
  def setUp(self):
576
    self.ipolicy = {
577
      constants.ISPECS_MAX: {
578
        constants.ISPEC_MEM_SIZE: 512,
579
        constants.ISPEC_DISK_SIZE: 1024,
580
        },
581
      constants.ISPECS_MIN: {
582
        constants.ISPEC_MEM_SIZE: 128,
583
        constants.ISPEC_DISK_COUNT: 1,
584
        },
585
      }
586

    
587
  def testNoneValue(self):
588
    self.assertTrue(cmdlib._ComputeMinMaxSpec(constants.ISPEC_MEM_SIZE,
589
                                              self.ipolicy, None) is None)
590

    
591
  def testAutoValue(self):
592
    self.assertTrue(cmdlib._ComputeMinMaxSpec(constants.ISPEC_MEM_SIZE,
593
                                              self.ipolicy,
594
                                              constants.VALUE_AUTO) is None)
595

    
596
  def testNotDefined(self):
597
    self.assertTrue(cmdlib._ComputeMinMaxSpec(constants.ISPEC_NIC_COUNT,
598
                                              self.ipolicy, 3) is None)
599

    
600
  def testNoMinDefined(self):
601
    self.assertTrue(cmdlib._ComputeMinMaxSpec(constants.ISPEC_DISK_SIZE,
602
                                              self.ipolicy, 128) is None)
603

    
604
  def testNoMaxDefined(self):
605
    self.assertTrue(cmdlib._ComputeMinMaxSpec(constants.ISPEC_DISK_COUNT,
606
                                                self.ipolicy, 16) is None)
607

    
608
  def testOutOfRange(self):
609
    for (name, val) in ((constants.ISPEC_MEM_SIZE, 64),
610
                        (constants.ISPEC_MEM_SIZE, 768),
611
                        (constants.ISPEC_DISK_SIZE, 4096),
612
                        (constants.ISPEC_DISK_COUNT, 0)):
613
      min_v = self.ipolicy[constants.ISPECS_MIN].get(name, val)
614
      max_v = self.ipolicy[constants.ISPECS_MAX].get(name, val)
615
      self.assertEqual(cmdlib._ComputeMinMaxSpec(name, self.ipolicy, val),
616
                       "%s value %s is not in range [%s, %s]" %
617
                       (name, val,min_v, max_v))
618

    
619
  def test(self):
620
    for (name, val) in ((constants.ISPEC_MEM_SIZE, 256),
621
                        (constants.ISPEC_MEM_SIZE, 128),
622
                        (constants.ISPEC_MEM_SIZE, 512),
623
                        (constants.ISPEC_DISK_SIZE, 1024),
624
                        (constants.ISPEC_DISK_SIZE, 0),
625
                        (constants.ISPEC_DISK_COUNT, 1),
626
                        (constants.ISPEC_DISK_COUNT, 5)):
627
      self.assertTrue(cmdlib._ComputeMinMaxSpec(name, self.ipolicy, val)
628
                      is None)
629

    
630

    
631
def _ValidateComputeMinMaxSpec(name, *_):
632
  assert name in constants.ISPECS_PARAMETERS
633
  return None
634

    
635

    
636
class _SpecWrapper:
637
  def __init__(self, spec):
638
    self.spec = spec
639

    
640
  def ComputeMinMaxSpec(self, *args):
641
    return self.spec.pop(0)
642

    
643

    
644
class TestComputeIPolicySpecViolation(unittest.TestCase):
645
  def test(self):
646
    compute_fn = _ValidateComputeMinMaxSpec
647
    ret = cmdlib._ComputeIPolicySpecViolation(NotImplemented, 1024, 1, 1, 1,
648
                                              [1024], _compute_fn=compute_fn)
649
    self.assertEqual(ret, [])
650

    
651
  def testInvalidArguments(self):
652
    self.assertRaises(AssertionError, cmdlib._ComputeIPolicySpecViolation,
653
                      NotImplemented, 1024, 1, 1, 1, [])
654

    
655
  def testInvalidSpec(self):
656
    spec = _SpecWrapper([None, False, "foo", None, "bar"])
657
    compute_fn = spec.ComputeMinMaxSpec
658
    ret = cmdlib._ComputeIPolicySpecViolation(NotImplemented, 1024, 1, 1, 1,
659
                                              [1024], _compute_fn=compute_fn)
660
    self.assertEqual(ret, ["foo", "bar"])
661
    self.assertFalse(spec.spec)
662

    
663

    
664
class _StubComputeIPolicySpecViolation:
665
  def __init__(self, mem_size, cpu_count, disk_count, nic_count, disk_sizes):
666
    self.mem_size = mem_size
667
    self.cpu_count = cpu_count
668
    self.disk_count = disk_count
669
    self.nic_count = nic_count
670
    self.disk_sizes = disk_sizes
671

    
672
  def __call__(self, _, mem_size, cpu_count, disk_count, nic_count, disk_sizes):
673
    assert self.mem_size == mem_size
674
    assert self.cpu_count == cpu_count
675
    assert self.disk_count == disk_count
676
    assert self.nic_count == nic_count
677
    assert self.disk_sizes == disk_sizes
678

    
679
    return []
680

    
681

    
682
class TestComputeIPolicyInstanceViolation(unittest.TestCase):
683
  def test(self):
684
    beparams = {
685
      constants.BE_MAXMEM: 2048,
686
      constants.BE_VCPUS: 2,
687
      }
688
    disks = [objects.Disk(size=512)]
689
    instance = objects.Instance(beparams=beparams, disks=disks, nics=[])
690
    stub = _StubComputeIPolicySpecViolation(2048, 2, 1, 0, [512])
691
    ret = cmdlib._ComputeIPolicyInstanceViolation(NotImplemented, instance,
692
                                                  _compute_fn=stub)
693
    self.assertEqual(ret, [])
694

    
695

    
696
class TestComputeIPolicyInstanceSpecViolation(unittest.TestCase):
697
  def test(self):
698
    ispec = {
699
      constants.ISPEC_MEM_SIZE: 2048,
700
      constants.ISPEC_CPU_COUNT: 2,
701
      constants.ISPEC_DISK_COUNT: 1,
702
      constants.ISPEC_DISK_SIZE: [512],
703
      constants.ISPEC_NIC_COUNT: 0,
704
      }
705
    stub = _StubComputeIPolicySpecViolation(2048, 2, 1, 0, [512])
706
    ret = cmdlib._ComputeIPolicyInstanceSpecViolation(NotImplemented, ispec,
707
                                                      _compute_fn=stub)
708
    self.assertEqual(ret, [])
709

    
710

    
711
class _CallRecorder:
712
  def __init__(self, return_value=None):
713
    self.called = False
714
    self.return_value = return_value
715

    
716
  def __call__(self, *args):
717
    self.called = True
718
    return self.return_value
719

    
720

    
721
class TestComputeIPolicyNodeViolation(unittest.TestCase):
722
  def setUp(self):
723
    self.recorder = _CallRecorder(return_value=[])
724

    
725
  def testSameGroup(self):
726
    ret = cmdlib._ComputeIPolicyNodeViolation(NotImplemented, NotImplemented,
727
                                              "foo", "foo",
728
                                              _compute_fn=self.recorder)
729
    self.assertFalse(self.recorder.called)
730
    self.assertEqual(ret, [])
731

    
732
  def testDifferentGroup(self):
733
    ret = cmdlib._ComputeIPolicyNodeViolation(NotImplemented, NotImplemented,
734
                                              "foo", "bar",
735
                                              _compute_fn=self.recorder)
736
    self.assertTrue(self.recorder.called)
737
    self.assertEqual(ret, [])
738

    
739

    
740
class _FakeConfigForTargetNodeIPolicy:
741
  def __init__(self, node_info=NotImplemented):
742
    self._node_info = node_info
743

    
744
  def GetNodeInfo(self, _):
745
    return self._node_info
746

    
747

    
748
class TestCheckTargetNodeIPolicy(unittest.TestCase):
749
  def setUp(self):
750
    self.instance = objects.Instance(primary_node="blubb")
751
    self.target_node = objects.Node(group="bar")
752
    node_info = objects.Node(group="foo")
753
    fake_cfg = _FakeConfigForTargetNodeIPolicy(node_info=node_info)
754
    self.lu = _FakeLU(cfg=fake_cfg)
755

    
756
  def testNoViolation(self):
757
    compute_recoder = _CallRecorder(return_value=[])
758
    cmdlib._CheckTargetNodeIPolicy(self.lu, NotImplemented, self.instance,
759
                                   self.target_node,
760
                                   _compute_fn=compute_recoder)
761
    self.assertTrue(compute_recoder.called)
762
    self.assertEqual(self.lu.warning_log, [])
763

    
764
  def testNoIgnore(self):
765
    compute_recoder = _CallRecorder(return_value=["mem_size not in range"])
766
    self.assertRaises(errors.OpPrereqError, cmdlib._CheckTargetNodeIPolicy,
767
                      self.lu, NotImplemented, self.instance, self.target_node,
768
                      _compute_fn=compute_recoder)
769
    self.assertTrue(compute_recoder.called)
770
    self.assertEqual(self.lu.warning_log, [])
771

    
772
  def testIgnoreViolation(self):
773
    compute_recoder = _CallRecorder(return_value=["mem_size not in range"])
774
    cmdlib._CheckTargetNodeIPolicy(self.lu, NotImplemented, self.instance,
775
                                   self.target_node, ignore=True,
776
                                   _compute_fn=compute_recoder)
777
    self.assertTrue(compute_recoder.called)
778
    msg = ("Instance does not meet target node group's (bar) instance policy:"
779
           " mem_size not in range")
780
    self.assertEqual(self.lu.warning_log, [(msg, ())])
781

    
782

    
783
class TestApplyContainerMods(unittest.TestCase):
784
  def testEmptyContainer(self):
785
    container = []
786
    chgdesc = []
787
    cmdlib.ApplyContainerMods("test", container, chgdesc, [], None, None, None)
788
    self.assertEqual(container, [])
789
    self.assertEqual(chgdesc, [])
790

    
791
  def testAdd(self):
792
    container = []
793
    chgdesc = []
794
    mods = cmdlib.PrepareContainerMods([
795
      (constants.DDM_ADD, -1, "Hello"),
796
      (constants.DDM_ADD, -1, "World"),
797
      (constants.DDM_ADD, 0, "Start"),
798
      (constants.DDM_ADD, -1, "End"),
799
      ], None)
800
    cmdlib.ApplyContainerMods("test", container, chgdesc, mods,
801
                              None, None, None)
802
    self.assertEqual(container, ["Start", "Hello", "World", "End"])
803
    self.assertEqual(chgdesc, [])
804

    
805
  def testRemoveError(self):
806
    for idx in [0, 1, 2, 100, -1, -4]:
807
      mods = cmdlib.PrepareContainerMods([
808
        (constants.DDM_REMOVE, idx, None),
809
        ], None)
810
      self.assertRaises(IndexError, cmdlib.ApplyContainerMods,
811
                        "test", [], None, mods, None, None, None)
812

    
813
    mods = cmdlib.PrepareContainerMods([
814
      (constants.DDM_REMOVE, 0, object()),
815
      ], None)
816
    self.assertRaises(AssertionError, cmdlib.ApplyContainerMods,
817
                      "test", [""], None, mods, None, None, None)
818

    
819
  def testAddError(self):
820
    for idx in range(-100, -1):
821
      mods = cmdlib.PrepareContainerMods([
822
        (constants.DDM_ADD, idx, None),
823
        ], None)
824
      self.assertRaises(IndexError, cmdlib.ApplyContainerMods,
825
                        "test", [], None, mods, None, None, None)
826

    
827
  def testRemove(self):
828
    container = ["item 1", "item 2"]
829
    mods = cmdlib.PrepareContainerMods([
830
      (constants.DDM_ADD, -1, "aaa"),
831
      (constants.DDM_REMOVE, -1, None),
832
      (constants.DDM_ADD, -1, "bbb"),
833
      ], None)
834
    chgdesc = []
835
    cmdlib.ApplyContainerMods("test", container, chgdesc, mods,
836
                              None, None, None)
837
    self.assertEqual(container, ["item 1", "item 2", "bbb"])
838
    self.assertEqual(chgdesc, [
839
      ("test/2", "remove"),
840
      ])
841

    
842
  class _PrivateData:
843
    def __init__(self):
844
      self.data = None
845

    
846
  @staticmethod
847
  def _CreateTestFn(idx, params, private):
848
    private.data = ("add", idx, params)
849
    return ((100 * idx, params), [
850
      ("test/%s" % idx, hex(idx)),
851
      ])
852

    
853
  @staticmethod
854
  def _ModifyTestFn(idx, item, params, private):
855
    private.data = ("modify", idx, params)
856
    return [
857
      ("test/%s" % idx, "modify %s" % params),
858
      ]
859

    
860
  @staticmethod
861
  def _RemoveTestFn(idx, item, private):
862
    private.data = ("remove", idx, item)
863

    
864
  def testAddWithCreateFunction(self):
865
    container = []
866
    chgdesc = []
867
    mods = cmdlib.PrepareContainerMods([
868
      (constants.DDM_ADD, -1, "Hello"),
869
      (constants.DDM_ADD, -1, "World"),
870
      (constants.DDM_ADD, 0, "Start"),
871
      (constants.DDM_ADD, -1, "End"),
872
      (constants.DDM_REMOVE, 2, None),
873
      (constants.DDM_MODIFY, -1, "foobar"),
874
      (constants.DDM_REMOVE, 2, None),
875
      (constants.DDM_ADD, 1, "More"),
876
      ], self._PrivateData)
877
    cmdlib.ApplyContainerMods("test", container, chgdesc, mods,
878
      self._CreateTestFn, self._ModifyTestFn, self._RemoveTestFn)
879
    self.assertEqual(container, [
880
      (100, "Start"),
881
      (200, "More"),
882
      (0, "Hello"),
883
      ])
884
    self.assertEqual(chgdesc, [
885
      ("test/0", "0x0"),
886
      ("test/1", "0x1"),
887
      ("test/1", "0x1"),
888
      ("test/3", "0x3"),
889
      ("test/2", "remove"),
890
      ("test/2", "modify foobar"),
891
      ("test/2", "remove"),
892
      ("test/2", "0x2")
893
      ])
894
    self.assertTrue(compat.all(op == private.data[0]
895
                               for (op, _, _, private) in mods))
896
    self.assertEqual([private.data for (op, _, _, private) in mods], [
897
      ("add", 0, "Hello"),
898
      ("add", 1, "World"),
899
      ("add", 1, "Start"),
900
      ("add", 3, "End"),
901
      ("remove", 2, (100, "World")),
902
      ("modify", 2, "foobar"),
903
      ("remove", 2, (300, "End")),
904
      ("add", 2, "More"),
905
      ])
906

    
907

    
908
class _FakeConfigForGenDiskTemplate:
909
  def __init__(self):
910
    self._unique_id = itertools.count()
911
    self._drbd_minor = itertools.count(20)
912
    self._port = itertools.count(constants.FIRST_DRBD_PORT)
913
    self._secret = itertools.count()
914

    
915
  def GetVGName(self):
916
    return "testvg"
917

    
918
  def GenerateUniqueID(self, ec_id):
919
    return "ec%s-uq%s" % (ec_id, self._unique_id.next())
920

    
921
  def AllocateDRBDMinor(self, nodes, instance):
922
    return [self._drbd_minor.next()
923
            for _ in nodes]
924

    
925
  def AllocatePort(self):
926
    return self._port.next()
927

    
928
  def GenerateDRBDSecret(self, ec_id):
929
    return "ec%s-secret%s" % (ec_id, self._secret.next())
930

    
931

    
932
class _FakeProcForGenDiskTemplate:
933
  def GetECId(self):
934
    return 0
935

    
936

    
937
class TestGenerateDiskTemplate(unittest.TestCase):
938
  def setUp(self):
939
    nodegroup = objects.NodeGroup(name="ng")
940
    nodegroup.UpgradeConfig()
941

    
942
    cfg = _FakeConfigForGenDiskTemplate()
943
    proc = _FakeProcForGenDiskTemplate()
944

    
945
    self.lu = _FakeLU(cfg=cfg, proc=proc)
946
    self.nodegroup = nodegroup
947

    
948
  def testWrongDiskTemplate(self):
949
    gdt = cmdlib._GenerateDiskTemplate
950
    disk_template = "##unknown##"
951

    
952
    assert disk_template not in constants.DISK_TEMPLATES
953

    
954
    self.assertRaises(errors.ProgrammerError, gdt, self.lu, disk_template,
955
                      "inst26831.example.com", "node30113.example.com", [], [],
956
                      NotImplemented, NotImplemented, 0, self.lu.LogInfo,
957
                      self.nodegroup.diskparams)
958

    
959
  def testDiskless(self):
960
    gdt = cmdlib._GenerateDiskTemplate
961

    
962
    result = gdt(self.lu, constants.DT_DISKLESS, "inst27734.example.com",
963
                 "node30113.example.com", [], [],
964
                 NotImplemented, NotImplemented, 0, self.lu.LogInfo,
965
                 self.nodegroup.diskparams)
966
    self.assertEqual(result, [])
967

    
968
  def _TestTrivialDisk(self, template, disk_info, base_index, exp_dev_type,
969
                       file_storage_dir=NotImplemented,
970
                       file_driver=NotImplemented,
971
                       req_file_storage=NotImplemented,
972
                       req_shr_file_storage=NotImplemented):
973
    gdt = cmdlib._GenerateDiskTemplate
974

    
975
    map(lambda params: utils.ForceDictType(params,
976
                                           constants.IDISK_PARAMS_TYPES),
977
        disk_info)
978

    
979
    # Check if non-empty list of secondaries is rejected
980
    self.assertRaises(errors.ProgrammerError, gdt, self.lu,
981
                      template, "inst25088.example.com",
982
                      "node185.example.com", ["node323.example.com"], [],
983
                      NotImplemented, NotImplemented, base_index,
984
                      self.lu.LogInfo, self.nodegroup.diskparams,
985
                      _req_file_storage=req_file_storage,
986
                      _req_shr_file_storage=req_shr_file_storage)
987

    
988
    result = gdt(self.lu, template, "inst21662.example.com",
989
                 "node21741.example.com", [],
990
                 disk_info, file_storage_dir, file_driver, base_index,
991
                 self.lu.LogInfo, self.nodegroup.diskparams,
992
                 _req_file_storage=req_file_storage,
993
                 _req_shr_file_storage=req_shr_file_storage)
994

    
995
    for (idx, disk) in enumerate(result):
996
      self.assertTrue(isinstance(disk, objects.Disk))
997
      self.assertEqual(disk.dev_type, exp_dev_type)
998
      self.assertEqual(disk.size, disk_info[idx][constants.IDISK_SIZE])
999
      self.assertEqual(disk.mode, disk_info[idx][constants.IDISK_MODE])
1000
      self.assertTrue(disk.children is None)
1001

    
1002
    self.assertEqual(map(operator.attrgetter("iv_name"), result),
1003
      ["disk/%s" % i for i in range(base_index, base_index + len(disk_info))])
1004

    
1005
    return result
1006

    
1007
  def testPlain(self):
1008
    disk_info = [{
1009
      constants.IDISK_SIZE: 1024,
1010
      constants.IDISK_MODE: constants.DISK_RDWR,
1011
      }, {
1012
      constants.IDISK_SIZE: 4096,
1013
      constants.IDISK_VG: "othervg",
1014
      constants.IDISK_MODE: constants.DISK_RDWR,
1015
      }]
1016

    
1017
    result = self._TestTrivialDisk(constants.DT_PLAIN, disk_info, 3,
1018
                                   constants.LD_LV)
1019

    
1020
    self.assertEqual(map(operator.attrgetter("logical_id"), result), [
1021
      ("testvg", "ec0-uq0.disk3"),
1022
      ("othervg", "ec0-uq1.disk4"),
1023
      ])
1024

    
1025
  @staticmethod
1026
  def _AllowFileStorage():
1027
    pass
1028

    
1029
  @staticmethod
1030
  def _ForbidFileStorage():
1031
    raise errors.OpPrereqError("Disallowed in test")
1032

    
1033
  def testFile(self):
1034
    self.assertRaises(errors.OpPrereqError, self._TestTrivialDisk,
1035
                      constants.DT_FILE, [], 0, NotImplemented,
1036
                      req_file_storage=self._ForbidFileStorage)
1037
    self.assertRaises(errors.OpPrereqError, self._TestTrivialDisk,
1038
                      constants.DT_SHARED_FILE, [], 0, NotImplemented,
1039
                      req_shr_file_storage=self._ForbidFileStorage)
1040

    
1041
    for disk_template in [constants.DT_FILE, constants.DT_SHARED_FILE]:
1042
      disk_info = [{
1043
        constants.IDISK_SIZE: 80 * 1024,
1044
        constants.IDISK_MODE: constants.DISK_RDONLY,
1045
        }, {
1046
        constants.IDISK_SIZE: 4096,
1047
        constants.IDISK_MODE: constants.DISK_RDWR,
1048
        }, {
1049
        constants.IDISK_SIZE: 6 * 1024,
1050
        constants.IDISK_MODE: constants.DISK_RDWR,
1051
        }]
1052

    
1053
      result = self._TestTrivialDisk(disk_template, disk_info, 2,
1054
        constants.LD_FILE, file_storage_dir="/tmp",
1055
        file_driver=constants.FD_BLKTAP,
1056
        req_file_storage=self._AllowFileStorage,
1057
        req_shr_file_storage=self._AllowFileStorage)
1058

    
1059
      self.assertEqual(map(operator.attrgetter("logical_id"), result), [
1060
        (constants.FD_BLKTAP, "/tmp/disk2"),
1061
        (constants.FD_BLKTAP, "/tmp/disk3"),
1062
        (constants.FD_BLKTAP, "/tmp/disk4"),
1063
        ])
1064

    
1065
  def testBlock(self):
1066
    disk_info = [{
1067
      constants.IDISK_SIZE: 8 * 1024,
1068
      constants.IDISK_MODE: constants.DISK_RDWR,
1069
      constants.IDISK_ADOPT: "/tmp/some/block/dev",
1070
      }]
1071

    
1072
    result = self._TestTrivialDisk(constants.DT_BLOCK, disk_info, 10,
1073
                                   constants.LD_BLOCKDEV)
1074

    
1075
    self.assertEqual(map(operator.attrgetter("logical_id"), result), [
1076
      (constants.BLOCKDEV_DRIVER_MANUAL, "/tmp/some/block/dev"),
1077
      ])
1078

    
1079
  def testRbd(self):
1080
    disk_info = [{
1081
      constants.IDISK_SIZE: 8 * 1024,
1082
      constants.IDISK_MODE: constants.DISK_RDONLY,
1083
      }, {
1084
      constants.IDISK_SIZE: 100 * 1024,
1085
      constants.IDISK_MODE: constants.DISK_RDWR,
1086
      }]
1087

    
1088
    result = self._TestTrivialDisk(constants.DT_RBD, disk_info, 0,
1089
                                   constants.LD_RBD)
1090

    
1091
    self.assertEqual(map(operator.attrgetter("logical_id"), result), [
1092
      ("rbd", "ec0-uq0.rbd.disk0"),
1093
      ("rbd", "ec0-uq1.rbd.disk1"),
1094
      ])
1095

    
1096
  def testDrbd8(self):
1097
    gdt = cmdlib._GenerateDiskTemplate
1098
    drbd8_defaults = constants.DISK_LD_DEFAULTS[constants.LD_DRBD8]
1099
    drbd8_default_metavg = drbd8_defaults[constants.LDP_DEFAULT_METAVG]
1100

    
1101
    disk_info = [{
1102
      constants.IDISK_SIZE: 1024,
1103
      constants.IDISK_MODE: constants.DISK_RDWR,
1104
      }, {
1105
      constants.IDISK_SIZE: 100 * 1024,
1106
      constants.IDISK_MODE: constants.DISK_RDONLY,
1107
      constants.IDISK_METAVG: "metavg",
1108
      }, {
1109
      constants.IDISK_SIZE: 4096,
1110
      constants.IDISK_MODE: constants.DISK_RDWR,
1111
      constants.IDISK_VG: "vgxyz",
1112
      },
1113
      ]
1114

    
1115
    exp_logical_ids = [[
1116
      (self.lu.cfg.GetVGName(), "ec0-uq0.disk0_data"),
1117
      (drbd8_default_metavg, "ec0-uq0.disk0_meta"),
1118
      ], [
1119
      (self.lu.cfg.GetVGName(), "ec0-uq1.disk1_data"),
1120
      ("metavg", "ec0-uq1.disk1_meta"),
1121
      ], [
1122
      ("vgxyz", "ec0-uq2.disk2_data"),
1123
      (drbd8_default_metavg, "ec0-uq2.disk2_meta"),
1124
      ]]
1125

    
1126
    assert len(exp_logical_ids) == len(disk_info)
1127

    
1128
    map(lambda params: utils.ForceDictType(params,
1129
                                           constants.IDISK_PARAMS_TYPES),
1130
        disk_info)
1131

    
1132
    # Check if empty list of secondaries is rejected
1133
    self.assertRaises(errors.ProgrammerError, gdt, self.lu, constants.DT_DRBD8,
1134
                      "inst827.example.com", "node1334.example.com", [],
1135
                      disk_info, NotImplemented, NotImplemented, 0,
1136
                      self.lu.LogInfo, self.nodegroup.diskparams)
1137

    
1138
    result = gdt(self.lu, constants.DT_DRBD8, "inst827.example.com",
1139
                 "node1334.example.com", ["node12272.example.com"],
1140
                 disk_info, NotImplemented, NotImplemented, 0, self.lu.LogInfo,
1141
                 self.nodegroup.diskparams)
1142

    
1143
    for (idx, disk) in enumerate(result):
1144
      self.assertTrue(isinstance(disk, objects.Disk))
1145
      self.assertEqual(disk.dev_type, constants.LD_DRBD8)
1146
      self.assertEqual(disk.size, disk_info[idx][constants.IDISK_SIZE])
1147
      self.assertEqual(disk.mode, disk_info[idx][constants.IDISK_MODE])
1148

    
1149
      for child in disk.children:
1150
        self.assertTrue(isinstance(disk, objects.Disk))
1151
        self.assertEqual(child.dev_type, constants.LD_LV)
1152
        self.assertTrue(child.children is None)
1153

    
1154
      self.assertEqual(map(operator.attrgetter("logical_id"), disk.children),
1155
                       exp_logical_ids[idx])
1156

    
1157
      self.assertEqual(len(disk.children), 2)
1158
      self.assertEqual(disk.children[0].size, disk.size)
1159
      self.assertEqual(disk.children[1].size, cmdlib.DRBD_META_SIZE)
1160

    
1161
    self.assertEqual(map(operator.attrgetter("iv_name"), result),
1162
                     ["disk/0", "disk/1", "disk/2"])
1163

    
1164
    self.assertEqual(map(operator.attrgetter("logical_id"), result), [
1165
      ("node1334.example.com", "node12272.example.com",
1166
       constants.FIRST_DRBD_PORT, 20, 21, "ec0-secret0"),
1167
      ("node1334.example.com", "node12272.example.com",
1168
       constants.FIRST_DRBD_PORT + 1, 22, 23, "ec0-secret1"),
1169
      ("node1334.example.com", "node12272.example.com",
1170
       constants.FIRST_DRBD_PORT + 2, 24, 25, "ec0-secret2"),
1171
      ])
1172

    
1173

    
1174
if __name__ == "__main__":
1175
  testutils.GanetiTestProgram()