def _list_tables_helper(self, table_name=None):
from google.cloud.bigtable._generated import (
table_pb2 as table_data_v2_pb2)
from google.cloud.bigtable._generated import (
bigtable_table_admin_pb2 as table_messages_v1_pb2)
from unit_tests._testing import _FakeStub
client = _Client(self.PROJECT)
instance = self._make_one(self.INSTANCE_ID, client, self.LOCATION_ID)
# Create request_
request_pb = table_messages_v1_pb2.ListTablesRequest(
parent=self.INSTANCE_NAME)
# Create response_pb
if table_name is None:
table_name = self.TABLE_NAME
response_pb = table_messages_v1_pb2.ListTablesResponse(
tables=[
table_data_v2_pb2.Table(name=table_name),
],
)
# Patch the stub used by the API method.
client._table_stub = stub = _FakeStub(response_pb)
# Create expected_result.
expected_table = instance.table(self.TABLE_ID)
expected_result = [expected_table]
# Perform the method and check the result.
result = instance.list_tables()
self.assertEqual(result, expected_result)
self.assertEqual(stub.method_calls, [(
'ListTables',
(request_pb,),
{},
)])
def list_tables(self):
"""List the tables in this instance.
:rtype: list of :class:`Table <google.cloud.bigtable.table.Table>`
:returns: The list of tables owned by the instance.
:raises: :class:`ValueError <exceptions.ValueError>` if one of the
returned tables has a name that is not of the expected format.
"""
request_pb = table_messages_v2_pb2.ListTablesRequest(parent=self.name)
# We expect a `table_messages_v2_pb2.ListTablesResponse`
table_list_pb = self._client._table_stub.ListTables(request_pb)
result = []
for table_pb in table_list_pb.tables:
table_prefix = self.name + '/tables/'
if not table_pb.name.startswith(table_prefix):
raise ValueError('Table name %s not of expected format' %
(table_pb.name, ))
table_id = table_pb.name[len(table_prefix):]
result.append(self.table(table_id))
return result