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test_database.py
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1583 lines (1247 loc) · 55.1 KB
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# Copyright 2016 Google LLC All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import mock
DML_WO_PARAM = """
DELETE FROM citizens
"""
DML_W_PARAM = """
INSERT INTO citizens(first_name, last_name, age)
VALUES ("Phred", "Phlyntstone", @age)
"""
PARAMS = {"age": 30}
PARAM_TYPES = {"age": "INT64"}
MODE = 2 # PROFILE
def _make_credentials(): # pragma: NO COVER
import google.auth.credentials
class _CredentialsWithScopes(
google.auth.credentials.Credentials, google.auth.credentials.Scoped
):
pass
return mock.Mock(spec=_CredentialsWithScopes)
class _BaseTest(unittest.TestCase):
PROJECT_ID = "project-id"
PARENT = "projects/" + PROJECT_ID
INSTANCE_ID = "instance-id"
INSTANCE_NAME = PARENT + "/instances/" + INSTANCE_ID
DATABASE_ID = "database_id"
DATABASE_NAME = INSTANCE_NAME + "/databases/" + DATABASE_ID
SESSION_ID = "session_id"
SESSION_NAME = DATABASE_NAME + "/sessions/" + SESSION_ID
TRANSACTION_ID = b"transaction_id"
def _make_one(self, *args, **kwargs):
return self._get_target_class()(*args, **kwargs)
@staticmethod
def _make_timestamp():
import datetime
from google.cloud._helpers import UTC
return datetime.datetime.utcnow().replace(tzinfo=UTC)
@staticmethod
def _make_duration(seconds=1, microseconds=0):
import datetime
return datetime.timedelta(seconds=seconds, microseconds=microseconds)
class TestDatabase(_BaseTest):
def _get_target_class(self):
from google.cloud.spanner_v1.database import Database
return Database
@staticmethod
def _make_database_admin_api():
from google.cloud.spanner_v1.client import DatabaseAdminClient
return mock.create_autospec(DatabaseAdminClient, instance=True)
@staticmethod
def _make_spanner_api():
import google.cloud.spanner_v1.gapic.spanner_client
return mock.create_autospec(
google.cloud.spanner_v1.gapic.spanner_client.SpannerClient, instance=True
)
def test_ctor_defaults(self):
from google.cloud.spanner_v1.pool import BurstyPool
instance = _Instance(self.INSTANCE_NAME)
database = self._make_one(self.DATABASE_ID, instance)
self.assertEqual(database.database_id, self.DATABASE_ID)
self.assertIs(database._instance, instance)
self.assertEqual(list(database.ddl_statements), [])
self.assertIsInstance(database._pool, BurstyPool)
# BurstyPool does not create sessions during 'bind()'.
self.assertTrue(database._pool._sessions.empty())
def test_ctor_w_explicit_pool(self):
instance = _Instance(self.INSTANCE_NAME)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
self.assertEqual(database.database_id, self.DATABASE_ID)
self.assertIs(database._instance, instance)
self.assertEqual(list(database.ddl_statements), [])
self.assertIs(database._pool, pool)
self.assertIs(pool._bound, database)
def test_ctor_w_ddl_statements_non_string(self):
with self.assertRaises(ValueError):
self._make_one(
self.DATABASE_ID, instance=object(), ddl_statements=[object()]
)
def test_ctor_w_ddl_statements_w_create_database(self):
with self.assertRaises(ValueError):
self._make_one(
self.DATABASE_ID,
instance=object(),
ddl_statements=["CREATE DATABASE foo"],
)
def test_ctor_w_ddl_statements_ok(self):
from tests._fixtures import DDL_STATEMENTS
instance = _Instance(self.INSTANCE_NAME)
pool = _Pool()
database = self._make_one(
self.DATABASE_ID, instance, ddl_statements=DDL_STATEMENTS, pool=pool
)
self.assertEqual(database.database_id, self.DATABASE_ID)
self.assertIs(database._instance, instance)
self.assertEqual(list(database.ddl_statements), DDL_STATEMENTS)
def test_from_pb_bad_database_name(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
database_name = "INCORRECT_FORMAT"
database_pb = admin_v1_pb2.Database(name=database_name)
klass = self._get_target_class()
with self.assertRaises(ValueError):
klass.from_pb(database_pb, None)
def test_from_pb_project_mistmatch(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
ALT_PROJECT = "ALT_PROJECT"
client = _Client(project=ALT_PROJECT)
instance = _Instance(self.INSTANCE_NAME, client)
database_pb = admin_v1_pb2.Database(name=self.DATABASE_NAME)
klass = self._get_target_class()
with self.assertRaises(ValueError):
klass.from_pb(database_pb, instance)
def test_from_pb_instance_mistmatch(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
ALT_INSTANCE = "/projects/%s/instances/ALT-INSTANCE" % (self.PROJECT_ID,)
client = _Client()
instance = _Instance(ALT_INSTANCE, client)
database_pb = admin_v1_pb2.Database(name=self.DATABASE_NAME)
klass = self._get_target_class()
with self.assertRaises(ValueError):
klass.from_pb(database_pb, instance)
def test_from_pb_success_w_explicit_pool(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client)
database_pb = admin_v1_pb2.Database(name=self.DATABASE_NAME)
klass = self._get_target_class()
pool = _Pool()
database = klass.from_pb(database_pb, instance, pool=pool)
self.assertTrue(isinstance(database, klass))
self.assertEqual(database._instance, instance)
self.assertEqual(database.database_id, self.DATABASE_ID)
self.assertIs(database._pool, pool)
def test_from_pb_success_w_hyphen_w_default_pool(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
from google.cloud.spanner_v1.pool import BurstyPool
DATABASE_ID_HYPHEN = "database-id"
DATABASE_NAME_HYPHEN = self.INSTANCE_NAME + "/databases/" + DATABASE_ID_HYPHEN
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client)
database_pb = admin_v1_pb2.Database(name=DATABASE_NAME_HYPHEN)
klass = self._get_target_class()
database = klass.from_pb(database_pb, instance)
self.assertTrue(isinstance(database, klass))
self.assertEqual(database._instance, instance)
self.assertEqual(database.database_id, DATABASE_ID_HYPHEN)
self.assertIsInstance(database._pool, BurstyPool)
# BurstyPool does not create sessions during 'bind()'.
self.assertTrue(database._pool._sessions.empty())
def test_name_property(self):
instance = _Instance(self.INSTANCE_NAME)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
expected_name = self.DATABASE_NAME
self.assertEqual(database.name, expected_name)
def test_spanner_api_property_w_scopeless_creds(self):
client = _Client()
client_info = client._client_info = mock.Mock()
credentials = client.credentials = object()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
patch = mock.patch("google.cloud.spanner_v1.database.SpannerClient")
with patch as spanner_client:
api = database.spanner_api
self.assertIs(api, spanner_client.return_value)
# API instance is cached
again = database.spanner_api
self.assertIs(again, api)
spanner_client.assert_called_once_with(
credentials=credentials, client_info=client_info
)
def test_spanner_api_w_scoped_creds(self):
import google.auth.credentials
from google.cloud.spanner_v1.database import SPANNER_DATA_SCOPE
class _CredentialsWithScopes(google.auth.credentials.Scoped):
def __init__(self, scopes=(), source=None):
self._scopes = scopes
self._source = source
def requires_scopes(self): # pragma: NO COVER
return True
def with_scopes(self, scopes):
return self.__class__(scopes, self)
expected_scopes = (SPANNER_DATA_SCOPE,)
client = _Client()
client_info = client._client_info = mock.Mock()
credentials = client.credentials = _CredentialsWithScopes()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
patch = mock.patch("google.cloud.spanner_v1.database.SpannerClient")
with patch as spanner_client:
api = database.spanner_api
self.assertIs(api, spanner_client.return_value)
# API instance is cached
again = database.spanner_api
self.assertIs(again, api)
self.assertEqual(len(spanner_client.call_args_list), 1)
called_args, called_kw = spanner_client.call_args
self.assertEqual(called_args, ())
self.assertEqual(called_kw["client_info"], client_info)
scoped = called_kw["credentials"]
self.assertEqual(scoped._scopes, expected_scopes)
self.assertIs(scoped._source, credentials)
def test___eq__(self):
instance = _Instance(self.INSTANCE_NAME)
pool1, pool2 = _Pool(), _Pool()
database1 = self._make_one(self.DATABASE_ID, instance, pool=pool1)
database2 = self._make_one(self.DATABASE_ID, instance, pool=pool2)
self.assertEqual(database1, database2)
def test___eq__type_differ(self):
pool = _Pool()
database1 = self._make_one(self.DATABASE_ID, None, pool=pool)
database2 = object()
self.assertNotEqual(database1, database2)
def test___ne__same_value(self):
instance = _Instance(self.INSTANCE_NAME)
pool1, pool2 = _Pool(), _Pool()
database1 = self._make_one(self.DATABASE_ID, instance, pool=pool1)
database2 = self._make_one(self.DATABASE_ID, instance, pool=pool2)
comparison_val = database1 != database2
self.assertFalse(comparison_val)
def test___ne__(self):
pool1, pool2 = _Pool(), _Pool()
database1 = self._make_one("database_id1", "instance1", pool=pool1)
database2 = self._make_one("database_id2", "instance2", pool=pool2)
self.assertNotEqual(database1, database2)
def test_create_grpc_error(self):
from google.api_core.exceptions import GoogleAPICallError
from google.api_core.exceptions import Unknown
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.create_database.side_effect = Unknown("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(GoogleAPICallError):
database.create()
api.create_database.assert_called_once_with(
parent=self.INSTANCE_NAME,
create_statement="CREATE DATABASE {}".format(self.DATABASE_ID),
extra_statements=[],
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_create_already_exists(self):
from google.cloud.exceptions import Conflict
DATABASE_ID_HYPHEN = "database-id"
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.create_database.side_effect = Conflict("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(DATABASE_ID_HYPHEN, instance, pool=pool)
with self.assertRaises(Conflict):
database.create()
api.create_database.assert_called_once_with(
parent=self.INSTANCE_NAME,
create_statement="CREATE DATABASE `{}`".format(DATABASE_ID_HYPHEN),
extra_statements=[],
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_create_instance_not_found(self):
from google.cloud.exceptions import NotFound
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.create_database.side_effect = NotFound("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(NotFound):
database.create()
api.create_database.assert_called_once_with(
parent=self.INSTANCE_NAME,
create_statement="CREATE DATABASE {}".format(self.DATABASE_ID),
extra_statements=[],
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_create_success(self):
from tests._fixtures import DDL_STATEMENTS
op_future = object()
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.create_database.return_value = op_future
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(
self.DATABASE_ID, instance, ddl_statements=DDL_STATEMENTS, pool=pool
)
future = database.create()
self.assertIs(future, op_future)
api.create_database.assert_called_once_with(
parent=self.INSTANCE_NAME,
create_statement="CREATE DATABASE {}".format(self.DATABASE_ID),
extra_statements=DDL_STATEMENTS,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_exists_grpc_error(self):
from google.api_core.exceptions import Unknown
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.get_database_ddl.side_effect = Unknown("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(Unknown):
database.exists()
api.get_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_exists_not_found(self):
from google.cloud.exceptions import NotFound
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.get_database_ddl.side_effect = NotFound("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
self.assertFalse(database.exists())
api.get_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_exists_success(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
from tests._fixtures import DDL_STATEMENTS
client = _Client()
ddl_pb = admin_v1_pb2.GetDatabaseDdlResponse(statements=DDL_STATEMENTS)
api = client.database_admin_api = self._make_database_admin_api()
api.get_database_ddl.return_value = ddl_pb
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
self.assertTrue(database.exists())
api.get_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_reload_grpc_error(self):
from google.api_core.exceptions import Unknown
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.get_database_ddl.side_effect = Unknown("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(Unknown):
database.reload()
api.get_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_reload_not_found(self):
from google.cloud.exceptions import NotFound
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.get_database_ddl.side_effect = NotFound("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(NotFound):
database.reload()
api.get_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_reload_success(self):
from google.cloud.spanner_admin_database_v1.proto import (
spanner_database_admin_pb2 as admin_v1_pb2,
)
from tests._fixtures import DDL_STATEMENTS
client = _Client()
ddl_pb = admin_v1_pb2.GetDatabaseDdlResponse(statements=DDL_STATEMENTS)
api = client.database_admin_api = self._make_database_admin_api()
api.get_database_ddl.return_value = ddl_pb
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
database.reload()
self.assertEqual(database._ddl_statements, tuple(DDL_STATEMENTS))
api.get_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_update_ddl_grpc_error(self):
from google.api_core.exceptions import Unknown
from tests._fixtures import DDL_STATEMENTS
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.update_database_ddl.side_effect = Unknown("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(Unknown):
database.update_ddl(DDL_STATEMENTS)
api.update_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
DDL_STATEMENTS,
"",
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_update_ddl_not_found(self):
from google.cloud.exceptions import NotFound
from tests._fixtures import DDL_STATEMENTS
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.update_database_ddl.side_effect = NotFound("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(NotFound):
database.update_ddl(DDL_STATEMENTS)
api.update_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
DDL_STATEMENTS,
"",
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_update_ddl(self):
from tests._fixtures import DDL_STATEMENTS
op_future = object()
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.update_database_ddl.return_value = op_future
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
future = database.update_ddl(DDL_STATEMENTS)
self.assertIs(future, op_future)
api.update_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
DDL_STATEMENTS,
"",
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_update_ddl_w_operation_id(self):
from tests._fixtures import DDL_STATEMENTS
op_future = object()
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.update_database_ddl.return_value = op_future
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
future = database.update_ddl(DDL_STATEMENTS, operation_id="someOperationId")
self.assertIs(future, op_future)
api.update_database_ddl.assert_called_once_with(
self.DATABASE_NAME,
DDL_STATEMENTS,
"someOperationId",
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_drop_grpc_error(self):
from google.api_core.exceptions import Unknown
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.drop_database.side_effect = Unknown("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(Unknown):
database.drop()
api.drop_database.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_drop_not_found(self):
from google.cloud.exceptions import NotFound
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.drop_database.side_effect = NotFound("testing")
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
with self.assertRaises(NotFound):
database.drop()
api.drop_database.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_drop_success(self):
from google.protobuf.empty_pb2 import Empty
client = _Client()
api = client.database_admin_api = self._make_database_admin_api()
api.drop_database.return_value = Empty()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
database.drop()
api.drop_database.assert_called_once_with(
self.DATABASE_NAME,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def _execute_partitioned_dml_helper(self, dml, params=None, param_types=None):
from google.protobuf.struct_pb2 import Struct
from google.cloud.spanner_v1.proto.result_set_pb2 import (
PartialResultSet,
ResultSetStats,
)
from google.cloud.spanner_v1.proto.transaction_pb2 import (
Transaction as TransactionPB,
TransactionSelector,
TransactionOptions,
)
from google.cloud.spanner_v1._helpers import _make_value_pb
transaction_pb = TransactionPB(id=self.TRANSACTION_ID)
stats_pb = ResultSetStats(row_count_lower_bound=2)
result_sets = [PartialResultSet(stats=stats_pb)]
iterator = _MockIterator(*result_sets)
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
session = _Session()
pool.put(session)
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
api = database._spanner_api = self._make_spanner_api()
api.begin_transaction.return_value = transaction_pb
api.execute_streaming_sql.return_value = iterator
row_count = database.execute_partitioned_dml(dml, params, param_types)
self.assertEqual(row_count, 2)
txn_options = TransactionOptions(
partitioned_dml=TransactionOptions.PartitionedDml()
)
api.begin_transaction.assert_called_once_with(
session.name,
txn_options,
metadata=[("google-cloud-resource-prefix", database.name)],
)
if params:
expected_params = Struct(
fields={key: _make_value_pb(value) for (key, value) in params.items()}
)
else:
expected_params = None
expected_transaction = TransactionSelector(id=self.TRANSACTION_ID)
api.execute_streaming_sql.assert_called_once_with(
self.SESSION_NAME,
dml,
transaction=expected_transaction,
params=expected_params,
param_types=param_types,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_execute_partitioned_dml_wo_params(self):
self._execute_partitioned_dml_helper(dml=DML_WO_PARAM)
def test_execute_partitioned_dml_w_params_wo_param_types(self):
with self.assertRaises(ValueError):
self._execute_partitioned_dml_helper(dml=DML_W_PARAM, params=PARAMS)
def test_execute_partitioned_dml_w_params_and_param_types(self):
self._execute_partitioned_dml_helper(
dml=DML_W_PARAM, params=PARAMS, param_types=PARAM_TYPES
)
def test_session_factory_defaults(self):
from google.cloud.spanner_v1.session import Session
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
session = database.session()
self.assertTrue(isinstance(session, Session))
self.assertIs(session.session_id, None)
self.assertIs(session._database, database)
self.assertEqual(session.labels, {})
def test_session_factory_w_labels(self):
from google.cloud.spanner_v1.session import Session
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
labels = {"foo": "bar"}
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
session = database.session(labels=labels)
self.assertTrue(isinstance(session, Session))
self.assertIs(session.session_id, None)
self.assertIs(session._database, database)
self.assertEqual(session.labels, labels)
def test_snapshot_defaults(self):
from google.cloud.spanner_v1.database import SnapshotCheckout
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
session = _Session()
pool.put(session)
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
checkout = database.snapshot()
self.assertIsInstance(checkout, SnapshotCheckout)
self.assertIs(checkout._database, database)
self.assertEqual(checkout._kw, {})
def test_snapshot_w_read_timestamp_and_multi_use(self):
import datetime
from google.cloud._helpers import UTC
from google.cloud.spanner_v1.database import SnapshotCheckout
now = datetime.datetime.utcnow().replace(tzinfo=UTC)
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
session = _Session()
pool.put(session)
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
checkout = database.snapshot(read_timestamp=now, multi_use=True)
self.assertIsInstance(checkout, SnapshotCheckout)
self.assertIs(checkout._database, database)
self.assertEqual(checkout._kw, {"read_timestamp": now, "multi_use": True})
def test_batch(self):
from google.cloud.spanner_v1.database import BatchCheckout
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
session = _Session()
pool.put(session)
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
checkout = database.batch()
self.assertIsInstance(checkout, BatchCheckout)
self.assertIs(checkout._database, database)
def test_batch_snapshot(self):
from google.cloud.spanner_v1.database import BatchSnapshot
database = self._make_one(self.DATABASE_ID, instance=object(), pool=_Pool())
batch_txn = database.batch_snapshot()
self.assertIsInstance(batch_txn, BatchSnapshot)
self.assertIs(batch_txn._database, database)
self.assertIsNone(batch_txn._read_timestamp)
self.assertIsNone(batch_txn._exact_staleness)
def test_batch_snapshot_w_read_timestamp(self):
from google.cloud.spanner_v1.database import BatchSnapshot
database = self._make_one(self.DATABASE_ID, instance=object(), pool=_Pool())
timestamp = self._make_timestamp()
batch_txn = database.batch_snapshot(read_timestamp=timestamp)
self.assertIsInstance(batch_txn, BatchSnapshot)
self.assertIs(batch_txn._database, database)
self.assertEqual(batch_txn._read_timestamp, timestamp)
self.assertIsNone(batch_txn._exact_staleness)
def test_batch_snapshot_w_exact_staleness(self):
from google.cloud.spanner_v1.database import BatchSnapshot
database = self._make_one(self.DATABASE_ID, instance=object(), pool=_Pool())
duration = self._make_duration()
batch_txn = database.batch_snapshot(exact_staleness=duration)
self.assertIsInstance(batch_txn, BatchSnapshot)
self.assertIs(batch_txn._database, database)
self.assertIsNone(batch_txn._read_timestamp)
self.assertEqual(batch_txn._exact_staleness, duration)
def test_run_in_transaction_wo_args(self):
import datetime
NOW = datetime.datetime.now()
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
session = _Session()
pool.put(session)
session._committed = NOW
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
_unit_of_work = object()
committed = database.run_in_transaction(_unit_of_work)
self.assertEqual(committed, NOW)
self.assertEqual(session._retried, (_unit_of_work, (), {}))
def test_run_in_transaction_w_args(self):
import datetime
SINCE = datetime.datetime(2017, 1, 1)
UNTIL = datetime.datetime(2018, 1, 1)
NOW = datetime.datetime.now()
client = _Client()
instance = _Instance(self.INSTANCE_NAME, client=client)
pool = _Pool()
session = _Session()
pool.put(session)
session._committed = NOW
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
_unit_of_work = object()
committed = database.run_in_transaction(_unit_of_work, SINCE, until=UNTIL)
self.assertEqual(committed, NOW)
self.assertEqual(session._retried, (_unit_of_work, (SINCE,), {"until": UNTIL}))
def test_run_in_transaction_nested(self):
from datetime import datetime
# Perform the various setup tasks.
instance = _Instance(self.INSTANCE_NAME, client=_Client())
pool = _Pool()
session = _Session(run_transaction_function=True)
session._committed = datetime.now()
pool.put(session)
database = self._make_one(self.DATABASE_ID, instance, pool=pool)
# Define the inner function.
inner = mock.Mock(spec=())
# Define the nested transaction.
def nested_unit_of_work():
return database.run_in_transaction(inner)
# Attempting to run this transaction should raise RuntimeError.
with self.assertRaises(RuntimeError):
database.run_in_transaction(nested_unit_of_work)
self.assertEqual(inner.call_count, 0)
class TestBatchCheckout(_BaseTest):
def _get_target_class(self):
from google.cloud.spanner_v1.database import BatchCheckout
return BatchCheckout
@staticmethod
def _make_spanner_client():
from google.cloud.spanner_v1.gapic.spanner_client import SpannerClient
return mock.create_autospec(SpannerClient)
def test_ctor(self):
database = _Database(self.DATABASE_NAME)
checkout = self._make_one(database)
self.assertIs(checkout._database, database)
def test_context_mgr_success(self):
import datetime
from google.cloud.spanner_v1.proto.spanner_pb2 import CommitResponse
from google.cloud.spanner_v1.proto.transaction_pb2 import TransactionOptions
from google.cloud._helpers import UTC
from google.cloud._helpers import _datetime_to_pb_timestamp
from google.cloud.spanner_v1.batch import Batch
now = datetime.datetime.utcnow().replace(tzinfo=UTC)
now_pb = _datetime_to_pb_timestamp(now)
response = CommitResponse(commit_timestamp=now_pb)
database = _Database(self.DATABASE_NAME)
api = database.spanner_api = self._make_spanner_client()
api.commit.return_value = response
pool = database._pool = _Pool()
session = _Session(database)
pool.put(session)
checkout = self._make_one(database)
with checkout as batch:
self.assertIsNone(pool._session)
self.assertIsInstance(batch, Batch)
self.assertIs(batch._session, session)
self.assertIs(pool._session, session)
self.assertEqual(batch.committed, now)
expected_txn_options = TransactionOptions(read_write={})
api.commit.assert_called_once_with(
self.SESSION_NAME,
[],
single_use_transaction=expected_txn_options,
metadata=[("google-cloud-resource-prefix", database.name)],
)
def test_context_mgr_failure(self):
from google.cloud.spanner_v1.batch import Batch
database = _Database(self.DATABASE_NAME)
pool = database._pool = _Pool()
session = _Session(database)
pool.put(session)
checkout = self._make_one(database)
class Testing(Exception):
pass
with self.assertRaises(Testing):
with checkout as batch:
self.assertIsNone(pool._session)
self.assertIsInstance(batch, Batch)
self.assertIs(batch._session, session)
raise Testing()
self.assertIs(pool._session, session)
self.assertIsNone(batch.committed)
class TestSnapshotCheckout(_BaseTest):
def _get_target_class(self):
from google.cloud.spanner_v1.database import SnapshotCheckout
return SnapshotCheckout
def test_ctor_defaults(self):
from google.cloud.spanner_v1.snapshot import Snapshot