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#!/usr/bin/python

#

# Copyright (C) 2012 Google Inc.

#

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

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

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

# (at your option) any later version.

#

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

# WITHOUT ANY WARRANTY; without even the implied warranty of

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

# General Public License for more details.

#

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

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

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

# 02110-1301, USA.

"""Script for testing ganeti.masterd.iallocator"""

import unittest

from ganeti import compat

from ganeti import constants

from ganeti import errors

from ganeti import ht

from ganeti.masterd import iallocator

import testutils

class _StubIAllocator(object):

  def __init__(self, success):

    self.success = success

class TestIAReqMultiInstanceAlloc(unittest.TestCase):

  def testResult(self):

    good_results = [

      # First result (all instances "allocate")

      [

        [["foo", ["a", "b"]],

         ["bar", ["c"]],

         ["baz", []]],

        []

      ],

      # Second result (partial "allocate", partial "fail")

      [

        [["bar", ["c", "b"]],

         ["baz", ["a"]]],

        ["foo"]

      ],

      # Third result (all instances "fail")

      [

        [],

        ["foo", "bar", "baz"]

      ],

      ]

    bad_results = [

      "foobar",

      1234,

      [],

      [[]],

      [[], [], []],

      ]

    result_fn = iallocator.IAReqMultiInstanceAlloc.REQ_RESULT

    self.assertTrue(compat.all(map(result_fn, good_results)))

    self.assertFalse(compat.any(map(result_fn, bad_results)))

class TestIARequestBase(unittest.TestCase):

  def testValidateResult(self):

    class _StubReqBase(iallocator.IARequestBase):

      MODE = constants.IALLOCATOR_MODE_ALLOC

      REQ_RESULT = ht.TBool

    stub = _StubReqBase()

    stub.ValidateResult(_StubIAllocator(True), True)

    self.assertRaises(errors.ResultValidationError, stub.ValidateResult,

                      _StubIAllocator(True), "foo")

    stub.ValidateResult(_StubIAllocator(False), True)

    # We don't validate the result if the iallocation request was not successful

    stub.ValidateResult(_StubIAllocator(False), "foo")

if __name__ == "__main__":

  testutils.GanetiTestProgram()