This is a translation of Cassandra's CQL unit test source file
BatchTest.java into our cql-pytest framework.
This test file an old (2014) and small test file, with only a few minimal
testing of mostly error paths in batch statements. All test tests pass in
both Cassandra and Scylla.
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
Closes#14733
