4cf21f3a0f
This patch fixes cql-pytest/run-cassandra to work on systems which default to Java 11, including Fedora 33. Recent versions of Cassandra can run on Java 11 fine, but requires a bunch of weird JVM options to work around its JPMS (Java Platform Module System) feature. Cassandra's start scripts require these options to be listd in conf/jvm11-server.options, which is read by the startup script cassandra.in.sh. Because our "run-cassandra" builds its own "conf" directory, we need to create a jvm11-server.options file in that directory. This is ugly, but unfortunately necessary if cql-pytest/run-cassandra is to run with on systems defaulting to Java 11. Signed-off-by: Nadav Har'El <nyh@scylladb.com> Message-Id: <20210406220039.195796-1-nyh@scylladb.com>
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)