Files
scylladb/test/cql-pytest/test_cdc.py
Avi Kivity fcb8d040e8 treewide: use Software Package Data Exchange (SPDX) license identifiers
Instead of lengthy blurbs, switch to single-line, machine-readable
standardized (https://spdx.dev) license identifiers. The Linux kernel
switched long ago, so there is strong precedent.

Three cases are handled: AGPL-only, Apache-only, and dual licensed.
For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0),
reasoning that our changes are extensive enough to apply our license.

The changes we applied mechanically with a script, except to
licenses/README.md.

Closes #9937
2022-01-18 12:15:18 +01:00

34 lines
1.3 KiB
Python

# Copyright 2021-present ScyllaDB
#
# SPDX-License-Identifier: AGPL-3.0-or-later
from cassandra.cluster import ConsistencyLevel
from cassandra.query import SimpleStatement
from util import new_test_table
def test_cdc_log_entries_use_cdc_streams(scylla_only, cql, test_keyspace):
'''Test that the stream IDs chosen for CDC log entries come from the CDC generation
whose streams are listed in the streams description table. Since this test is executed
on a single-node cluster, there is only one generation.'''
schema = "pk int primary key"
extra = " with cdc = {'enabled': true}"
with new_test_table(cql, test_keyspace, schema, extra) as table:
stmt = cql.prepare(f"insert into {table} (pk) values (?) using timeout 5m")
for i in range(100):
cql.execute(stmt, [i])
log_stream_ids = set(r[0] for r in cql.execute(f'select "cdc$stream_id" from {table}_scylla_cdc_log'))
# There should be exactly one generation, so we just select the streams
streams_desc = cql.execute(SimpleStatement(
'select streams from system_distributed.cdc_streams_descriptions_v2',
consistency_level=ConsistencyLevel.ONE))
stream_ids = set()
for entry in streams_desc:
stream_ids.update(entry.streams)
assert(log_stream_ids.issubset(stream_ids))