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test_backup_list_restore_service.py
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test_backup_list_restore_service.py
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import unittest
from google.appengine.ext import testbed, ndb
from mock import patch, PropertyMock
from src.backup.datastore.Backup import Backup
from src.backup.datastore.Table import Table
from src.commons.config.configuration import Configuration
from src.commons.exceptions import ParameterValidationException
from src.commons.table_reference import TableReference
from src.restore.async_batch_restore_service import AsyncBatchRestoreService
from src.restore.datastore.restore_item import RestoreItem
from src.restore.list.backup_list_restore_service import \
BackupItem, BackupListRestoreRequest, BackupListRestoreService
class TestBackupListRestoreService(unittest.TestCase):
def setUp(self):
self.testbed = testbed.Testbed()
self.testbed.activate()
self.testbed.init_datastore_v3_stub()
self.testbed.init_memcache_stub()
patch('src.restore.async_batch_restore_service.BigQuery').start()
patch.object(Configuration, 'backup_project_id', return_value='source_project_id', new_callable=PropertyMock).start()
patch.object(Configuration, 'restoration_project_id', return_value='target_proj', new_callable=PropertyMock).start()
ndb.get_context().clear_cache()
def tearDown(self):
patch.stopall()
self.testbed.deactivate()
@patch.object(AsyncBatchRestoreService, 'restore')
def test_that_restore_service_will_receive_suitable_request(
self, mocked_restore_service):
# given
source_entity = self.__create_table_entity("source_project_id",
"source_dataset_id",
"source_table_id",
"source_partition_id")
source_entity.put()
backup_entity = self.__create_backup_entity(source_entity,
"backup_dataset_id",
"backup_table_id")
backup_key = backup_entity.put()
output_parameters = "{\"test_param_key\": \"test_value\"}"
backup_item = BackupItem(backup_key, output_parameters)
request = BackupListRestoreRequest([backup_item], "td123")
expected_source_table_reference = TableReference(
Configuration.backup_project_id,
"backup_dataset_id",
"backup_table_id",
"source_partition_id"
)
expected_target_table_reference = TableReference(
Configuration.restoration_project_id,
"td123",
"source_table_id",
"source_partition_id"
)
expected_restore_item = RestoreItem.create(
expected_source_table_reference,
expected_target_table_reference,
output_parameters
)
# when
BackupListRestoreService().restore("restorationId", request)
# then
mocked_restore_service.assert_called_once()
mocked_restore_service.assert_called_with(
ndb.Key('RestorationJob', 'restorationId'),
[[expected_restore_item]]
)
@patch.object(AsyncBatchRestoreService, 'restore',
return_value="restorationId")
def test_that_restore_service_will_generate_default_dataset_id_if_missing(
self, mocked_restore_service):
source_entity = self.__create_table_entity("source_project_id",
"source_dataset_id",
"source_table_id",
"source_partition_id")
source_entity.put()
backup_entity = self.__create_backup_entity(source_entity,
"backup_dataset_id",
"backup_table_id")
backup_key = backup_entity.put()
request = BackupListRestoreRequest(iter([BackupItem(backup_key)]))
expected_source_table_reference = TableReference(
Configuration.backup_project_id,
"backup_dataset_id",
"backup_table_id",
"source_partition_id"
)
expected_target_table_reference = TableReference(
Configuration.restoration_project_id,
"source_project_id___source_dataset_id",
"source_table_id",
"source_partition_id"
)
expected_restore_item = RestoreItem.create(
expected_source_table_reference, expected_target_table_reference
)
# when
result = BackupListRestoreService().restore("restorationId", request)
# then
mocked_restore_service.assert_called_once()
mocked_restore_service.assert_called_with(
ndb.Key('RestorationJob', 'restorationId'),
[[expected_restore_item]]
)
def test_that_restore_will_fail_if_backup_not_exists_in_ds(self):
# given
url_safe_key = "ahFlfmRldi1wcm9qZWN0LWJicXIlCxIFVGFibG" \
"UYgICAgJTOzAgMCxIGQmFja3VwGICAgICAgIAKDA"
backup_key = ndb.Key(urlsafe=url_safe_key)
request = BackupListRestoreRequest(iter([BackupItem(backup_key)]))
error_message = "Couldn\'t obtain backup entity in datastore. Error:"
# when
with self.assertRaises(ParameterValidationException) as context:
BackupListRestoreService().restore("restoreId", request)
# then
self.assertTrue(error_message in str(context.exception))
def test_that_restore_will_fail_if_backup_source_table_not_exists_in_ds(
self):
# given
source_entity = self.__create_table_entity("source_project_id",
"source_dataset_id",
"source_table_id",
"source_partition_id")
source_entity.put()
backup_entity = self.__create_backup_entity(source_entity,
"backup_dataset_id",
"backup_table_id")
backup_key = backup_entity.put()
source_entity.key.delete()
request = BackupListRestoreRequest(iter([BackupItem(backup_key)]))
error_message = "Backup ancestor doesn't exists: '{}:{}'. " \
.format(backup_entity.dataset_id, backup_entity.table_id)
# when
with self.assertRaises(ParameterValidationException) as context:
BackupListRestoreService().restore("restoreId",request)
# then
self.assertEquals(error_message, str(context.exception))
@staticmethod
def __create_table_entity(project_id, dataset_id, table_id, partition_id):
return Table(project_id=project_id,
dataset_id=dataset_id,
table_id=table_id,
partition_id=partition_id)
@staticmethod
def __create_backup_entity(source_table_entity, dataset_id, table_id):
return Backup(dataset_id=dataset_id,
table_id=table_id,
parent=source_table_entity.key)
@staticmethod
def __get_mocked_service_argument(mocked_service):
return mocked_service.call_args[0][0]