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#!/usr/bin/python

#

# Copyright (C) 2008 Google Inc.

#

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

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

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

# (at your option) any later version.

#

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

# WITHOUT ANY WARRANTY; without even the implied warranty of

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

# General Public License for more details.

#

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

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

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

# 0.0510-1301, USA.

"""Script for unittesting the cmdlib module"""

import os

import unittest

import time

import tempfile

import shutil

from ganeti import mcpu

from ganeti import cmdlib

from ganeti import opcodes

from ganeti import errors

from ganeti import utils

from ganeti import luxi

import testutils

import mocks

class TestCertVerification(testutils.GanetiTestCase):

  def setUp(self):

    testutils.GanetiTestCase.setUp(self)

    self.tmpdir = tempfile.mkdtemp()

  def tearDown(self):

    shutil.rmtree(self.tmpdir)

  def testVerifyCertificate(self):

    cmdlib._VerifyCertificate(self._TestDataFilename("cert1.pem"))

    nonexist_filename = os.path.join(self.tmpdir, "does-not-exist")

    (errcode, msg) = cmdlib._VerifyCertificate(nonexist_filename)

    self.assertEqual(errcode, cmdlib.LUVerifyCluster.ETYPE_ERROR)

    # Try to load non-certificate file

    invalid_cert = self._TestDataFilename("bdev-net.txt")

    (errcode, msg) = cmdlib._VerifyCertificate(invalid_cert)

    self.assertEqual(errcode, cmdlib.LUVerifyCluster.ETYPE_ERROR)

class TestOpcodeParams(testutils.GanetiTestCase):

  def testParamsStructures(self):

    for op in sorted(mcpu.Processor.DISPATCH_TABLE):

      lu = mcpu.Processor.DISPATCH_TABLE[op]

      lu_name = lu.__name__

      self.failIf(hasattr(lu, "_OP_REQP"), "LU '%s' has old-style _OP_REQP" %

                  lu_name)

      self.failIf(hasattr(lu, "_OP_DEFS"), "LU '%s' has old-style _OP_DEFS" %

                  lu_name)

      # this needs to remain a list!

      defined_params = [v[0] for v in lu._OP_PARAMS]

      for row in lu._OP_PARAMS:

        # this relies on there being at least one element

        param_name = row[0]

        self.failIf(len(row) != 3, "LU '%s' parameter %s has invalid length" %

                    (lu_name, param_name))

        self.failIf(defined_params.count(param_name) > 1, "LU '%s' parameter"

                    " '%s' is defined multiple times" % (lu_name, param_name))

  def testParamsDefined(self):

    for op in sorted(mcpu.Processor.DISPATCH_TABLE):

      lu = mcpu.Processor.DISPATCH_TABLE[op]

      lu_name = lu.__name__

      # TODO: this doesn't deal with recursive slots definitions

      all_params = set(op.__slots__)

      defined_params = set(v[0] for v in lu._OP_PARAMS)

      missing = all_params.difference(defined_params)

      self.failIf(missing, "Undeclared parameter types for LU '%s': %s" %

                  (lu_name, utils.CommaJoin(missing)))

      extra = defined_params.difference(all_params)

      self.failIf(extra, "Extra parameter types for LU '%s': %s" %

                  (lu_name, utils.CommaJoin(extra)))

class TestIAllocatorChecks(testutils.GanetiTestCase):

  def testFunction(self):

    class TestLU(object):

      def __init__(self, opcode):

        self.cfg = mocks.FakeConfig()

        self.op = opcode

    class TestOpcode(opcodes.OpCode):

      OP_ID = "OP_TEST"

      __slots__ = ["iallocator", "node"]

    default_iallocator = mocks.FakeConfig().GetDefaultIAllocator()

    other_iallocator = default_iallocator + "_not"

    op = TestOpcode()

    lu = TestLU(op)

    c_i = lambda: cmdlib._CheckIAllocatorOrNode(lu, "iallocator", "node")

    # Neither node nor iallocator given

    op.iallocator = None

    op.node = None

    c_i()

    self.assertEqual(lu.op.iallocator, default_iallocator)

    self.assertEqual(lu.op.node, None)

    # Both, iallocator and node given

    op.iallocator = "test"

    op.node = "test"

    self.assertRaises(errors.OpPrereqError, c_i)

    # Only iallocator given

    op.iallocator = other_iallocator

    op.node = None

    c_i()

    self.assertEqual(lu.op.iallocator, other_iallocator)

    self.assertEqual(lu.op.node, None)

    # Only node given

    op.iallocator = None

    op.node = "node"

    c_i()

    self.assertEqual(lu.op.iallocator, None)

    self.assertEqual(lu.op.node, "node")

    # No node, iallocator or default iallocator

    op.iallocator = None

    op.node = None

    lu.cfg.GetDefaultIAllocator = lambda: None

    self.assertRaises(errors.OpPrereqError, c_i)

class TestLUTestJobqueue(unittest.TestCase):

  def test(self):

    self.assert_(cmdlib.LUTestJobqueue._CLIENT_CONNECT_TIMEOUT <

                 (luxi.WFJC_TIMEOUT * 0.75),

                 msg=("Client timeout too high, might not notice bugs"

                      " in WaitForJobChange"))

if __name__ == "__main__":

  testutils.GanetiTestProgram()