Files
scylladb/test
Łukasz Paszkowski e5bd2f8679 test/storage: harden out-of-space prevention tests around restart and disk-utilization transitions
The tests in test_out_of_space_prevention.py are flaky. Three issues contribute:

1. After creating/removing the blob file that simulates disk pressure,
   the tests immediately checked derived state (e.g., "compaction_manager
   - Drained") without first confirming the disk space monitor had detected
   the utilization change. Fix: explicitly wait for "Reached/Dropped below
   critical disk utilization level" right after creating/removing the blob
   file, before checking downstream effects.

2. Several tests called `manager.driver_connect()` or omitted reconnection
   entirely after `server_restart()` / `server_start()`. The pre-existing
   driver session can silently reconnect multiple times, causing subsequent
   CQL queries to fail. Fix: call `reconnect_driver()` after every node restart.
   Additionally, call `wait_for_cql_and_get_hosts()` where CQL is used afterward,
   to ensure all connection pools are established.

3. Some log assertions used marks captured before a restart, so they could
   match pre-restart messages or miss messages emitted in the correct post-restart
   window. Fix: refresh marks at the right points.

Apart from that, the patch fixes a typo: autotoogle -> autotoggle.

Fixes: https://scylladb.atlassian.net/browse/SCYLLADB-655

Closes scylladb/scylladb#28626

(cherry picked from commit 826fd5d6c3)

Closes scylladb/scylladb#28967

Closes scylladb/scylladb#29197
2026-04-03 22:23:17 +03:00
..

Scylla in-source tests.

For details on how to run the tests, see docs/dev/testing.md

Shared C++ utils, libraries are in lib/, for Python - pylib/

alternator - Python tests which connect to a single server and use the DynamoDB API unit, boost, raft - unit tests in C++ cqlpy - Python tests which connect to a single server and use CQL topology* - tests that set up clusters and add/remove nodes cql - approval tests that use CQL and pre-recorded output rest_api - tests for Scylla REST API Port 9000 scylla-gdb - tests for scylla-gdb.py helper script nodetool - tests for C++ implementation of nodetool

If you can use an existing folder, consider adding your test to it. New folders should be used for new large categories/subsystems, or when the test environment is significantly different from some existing suite, e.g. you plan to start scylladb with different configuration, and you intend to add many tests and would like them to reuse an existing Scylla cluster (clusters can be reused for tests within the same folder).

To add a new folder, create a new directory, and then copy & edit its suite.ini.