dkropachev opened a new pull request, #1384:
URL: https://github.com/apache/cassandra-spark-connector/pull/1384
## Summary
- Move database initialization from class constructor body into
`beforeClass` in 8 integration test specs, bringing it under the existing
`wrapUnserializableExceptions` protection
- Convert dependent `val` declarations to `lazy val` so they evaluate after
`beforeClass` completes
## Root Cause
`SparkCassandraITSpecBase` wraps `beforeClass`/`afterAll`/`withFixture` with
`wrapUnserializableExceptions()` to handle non-serializable driver exceptions
in ScalaTest's forked test reporter. However, 8 test specs had
`conn.withSessionDo { ... }` blocks running directly in the class body (during
construction), bypassing this protection entirely.
When the ScyllaDB driver throws `AllNodesFailedException` containing a
non-serializable `ShardingInfo` reference, the forked reporter fails to
serialize the `SuiteAborted` event, causing CI exit code 2 despite all 434
tests passing.
Upstream issue for making `ShardingInfo` serializable:
scylladb/java-driver#805
## Affected Files
- `CassandraRDDSpec` - largest init block (lines 86-333)
- `SchemaSpec`
- `TokenGeneratorSpec`
- `CassandraDataFrameMetadataSpec`
- `CassandraDataFrameSelectUdtSpec`
- `MultiThreadedSpec`
- `BoundStatementBuilderSpec`
- `GroupingBatchBuilderSpec`
## Test plan
- [x] `sbt compile` passes
- [x] `sbt it:compile` passes
- [ ] Integration tests pass on Scylla CI (same results, no exit code 2)
Fixes #38
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