#!/usr/bin/python
#
# Copyright 2014 Google Inc.  All Rights Reserved.

import mock
import unittest

import settings
import settings_factory

from field import IntegerField
from field import ListField
import download_images

from utils import logger

class TestSettings(unittest.TestCase):

  def setUp(self):
    self.settings = settings.Settings('global_name', 'global')

  def test_init(self):
    self.assertEqual(self.settings.name, 'global_name')
    self.assertEqual(self.settings.settings_type, 'global')
    self.assertIsNone(self.settings.parent)


  def test_set_parent_settings(self):
    self.assertIsNone(self.settings.parent)
    settings_parent = { 'fake_parent_entry' : 0 }
    self.settings.SetParentSettings(settings_parent)
    self.assertIsNotNone(self.settings.parent)
    self.assertEqual(type(self.settings.parent), dict)
    self.assertEqual(self.settings.parent, settings_parent)


  def test_add_field(self):
    self.assertEqual (self.settings.fields, {})
    self.settings.AddField(IntegerField("iterations", default=1, required=False,
                               description="Number of iterations to run the "
                               "test."))
    self.assertEqual(len(self.settings.fields), 1)
    # Adding the same field twice raises an exception.
    self.assertRaises (Exception, self.settings.AddField,
                       (IntegerField("iterations", default=1, required=False,
                                     description="Number of iterations to run the"
                                     " test.")))
    res = self.settings.fields['iterations']
    self.assertIsInstance(res, IntegerField)
    self.assertEqual(res.Get(), 1)


  def test_set_field(self):
    self.assertEqual (self.settings.fields, {})
    self.settings.AddField(IntegerField("iterations", default=1, required=False,
                               description="Number of iterations to run the "
                               "test."))
    res = self.settings.fields['iterations']
    self.assertEqual(res.Get(), 1)

    self.settings.SetField('iterations', 10)
    res = self.settings.fields['iterations']
    self.assertEqual(res.Get(), 10)

    # Setting a field that's not there raises an exception.
    self.assertRaises (Exception, self.settings.SetField, 'remote', 'lumpy1.cros')

    self.settings.AddField(ListField("remote", default=[], description=
                                     "A comma-separated list of ip's of chromeos"
                                     "devices to run experiments on."))
    self.assertEqual(type(self.settings.fields), dict)
    self.assertEqual(len(self.settings.fields), 2)
    res = self.settings.fields['remote']
    self.assertEqual(res.Get(), [])
    self.settings.SetField('remote', 'lumpy1.cros', append=True)
    self.settings.SetField('remote', 'lumpy2.cros', append=True)
    res = self.settings.fields['remote']
    self.assertEqual(res.Get(), [ 'lumpy1.cros', 'lumpy2.cros' ])


  def test_get_field(self):
    # Getting a field that's not there raises an exception.
    self.assertRaises (Exception, self.settings.GetField, 'iterations')

    # Getting a required field that hasn't been assigned raises an exception.
    self.settings.AddField(IntegerField("iterations", required=True,
                                        description="Number of iterations to run "
                                        "the test."))
    self.assertIsNotNone(self.settings.fields['iterations'])
    self.assertRaises (Exception, self.settings.GetField, 'iterations')

    # Set the value, then get it.
    self.settings.SetField('iterations', 5)
    res = self.settings.GetField('iterations')
    self.assertEqual(res, 5)


  def test_inherit(self):
    parent_settings = settings_factory.SettingsFactory().GetSettings('global',
                                                                     'global')
    label_settings = settings_factory.SettingsFactory().GetSettings('label',
                                                                    'label')
    self.assertEqual(parent_settings.GetField('chromeos_root'), '')
    self.assertEqual(label_settings.GetField('chromeos_root'), '')
    self.assertIsNone(label_settings.parent)

    parent_settings.SetField('chromeos_root', '/tmp/chromeos')
    label_settings.SetParentSettings (parent_settings)
    self.assertEqual(parent_settings.GetField('chromeos_root'), '/tmp/chromeos')
    self.assertEqual(label_settings.GetField('chromeos_root'), '')
    label_settings.Inherit()
    self.assertEqual(label_settings.GetField('chromeos_root'), '/tmp/chromeos')


  def test_override(self):
    self.settings.AddField(ListField("email", default=[],
                                     description="Space-seperated"
                                     "list of email addresses to send email to."))


    global_settings = settings_factory.SettingsFactory().GetSettings('global',
                                                                    'global')

    global_settings.SetField('email', 'john.doe@google.com', append=True)
    global_settings.SetField('email', 'jane.smith@google.com', append=True)

    res = self.settings.GetField('email')
    self.assertEqual(res, [])

    self.settings.Override(global_settings)
    res = self.settings.GetField('email')
    self.assertEqual(res, ['john.doe@google.com', 'jane.smith@google.com'])


  def test_validate(self):

    self.settings.AddField(IntegerField("iterations", required=True,
                               description="Number of iterations to run the "
                               "test."))
    self.settings.AddField(ListField("remote", default=[], required=True,
                                     description=
                                     "A comma-separated list of ip's of chromeos"
                                     "devices to run experiments on."))
    self.settings.AddField(ListField("email", default=[],
                                     description="Space-seperated"
                                     "list of email addresses to send email to."))

    # 'required' fields have not been assigned; should raise an exception.
    self.assertRaises (Exception, self.settings.Validate)
    self.settings.SetField('iterations', 2)
    self.settings.SetField('remote', 'x86-alex.cros', append=True)
    # Should run without exception now.
    self.settings.Validate()

  @mock.patch.object (logger,'GetLogger')
  @mock.patch.object (download_images.ImageDownloader, 'Run')
  @mock.patch.object (download_images, 'ImageDownloader')
  def test_get_xbuddy_path(self, mock_downloader, mock_run, mock_logger):


    mock_run.return_value = [ 0, 'fake_xbuddy_translation' ]
    mock_downloader.Run = mock_run
    board = 'lumpy'
    chromeos_root = '/tmp/chromeos'
    log_level = 'average'

    trybot_str = 'trybot-lumpy-paladin/R34-5417.0.0-b1506'
    official_str = 'lumpy-release/R34-5417.0.0'
    xbuddy_str = 'latest-dev'

    self.settings.GetXbuddyPath(trybot_str, board, chromeos_root, log_level)
    self.assertEqual(mock_run.call_count, 1)
    self.assertEqual(mock_run.call_args_list[0][0],
                     ('/tmp/chromeos',
                      'remote/trybot-lumpy-paladin/R34-5417.0.0-b1506',))


    mock_run.reset_mock()
    self.settings.GetXbuddyPath(official_str, board, chromeos_root, log_level)
    self.assertEqual(mock_run.call_count, 1)
    self.assertEqual(mock_run.call_args_list[0][0],
                     ('/tmp/chromeos',
                      'remote/lumpy-release/R34-5417.0.0',))


    mock_run.reset_mock()
    self.settings.GetXbuddyPath(xbuddy_str, board, chromeos_root, log_level)
    self.assertEqual(mock_run.call_count, 1)
    self.assertEqual(mock_run.call_args_list[0][0],
                     ('/tmp/chromeos',
                      'remote/lumpy/latest-dev',))

    mock_run.return_value = [ 1, 'fake_xbuddy_translation' ]
    self.assertRaises (Exception, self.settings.GetXbuddyPath, xbuddy_str, board,
                       chromeos_root, log_level)

if __name__ == "__main__":
  unittest.main()