Following alternator unit tests, cql-pytest now also boots
Scylla/Cassandra with authentication enabled.
Unconditionally enabling authentication does not ruin any existing
test case, while it enables testing more scenarios. For instance,
Scylla-specific service levels can only be created and attached
to roles, which depends on authentication being enabled.
A sad side-effect is that Scylla boots slower with PasswordAuthenticator
than without it - it takes 15 seconds to set up the default
superuser account due to a hardcoded sleep duration [1] :( That should be
solved by a separate fix though.
[1]:
auth/common.hh:
inline future<> delay_until_system_ready(seastar::abort_source& as) {
return sleep_abortable(15s, as);
}
Single-node funtional tests for Scylla's CQL features. Tests use the Python CQL library and the pytest frameworks. By using an actual CQL library for the tests, they can be run against any implementation of CQL - both Scylla and Cassandra. Most tests - except in rare cases - should pass on both, to ensure that Scylla is compatible with Cassandra in most features.
To run all tests against an already-running local installation of Scylla
or Cassandra on localhost, just run pytest. The "--host" and "--port"
can be used to give a different location for the running Scylla or Cassanra.
More conveniently, we have two scripts - "run" and "run-cassandra" - which do all the work necessary to start Scylla or Cassandra (respectively), and run the tests on them. The Scylla or Cassandra process is run in a temporary directory which is automatically deleted when the test ends.
Additional options can be passed to "pytest" or to "run" / "run-cassandra" to control which tests to run:
- To run all tests in a single file, do
pytest test_table.py. - To run a single specific test, do
pytest test_table.py::test_create_table_unsupported_names.
Additional useful pytest options, especially useful for debugging tests:
- -v: show the names of each individual test running instead of just dots.
- -s: show the full output of running tests (by default, pytest captures the test's output and only displays it if a test fails)