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Head commit for run: 2c2cf2fce09e524da199816f2f2eed930c1db5aa / Xinyuan Lin <[email protected]> test(amber): add unit test coverage for FutureBijection and SerializedState (#5403) ### What changes were proposed in this PR? Adds `EngineCommonConversionsSpec` covering two `org.apache.texera.amber.engine.common` conversion helpers. Bundled because both files are short, both deal with engine-level value-shape conversions, and a single suite is the right level of focus. | File | Behavior pinned | | --- | --- | | `FutureBijection.scala` | `RichTwitterFuture.asScala`: `TwitterFuture.value` resolves Scala success; `TwitterFuture.exception` fails Scala with the original exception (`eq` identity, no rewrapping); async propagation via a Twitter `Promise` resolved after conversion. `RichScalaFuture.asTwitter`: `Scala.successful` / `Scala.failed` mirror the above; async propagation via a Scala `Promise`; a never-completing Scala `Promise` leaves the Twitter side un-resolved (verified with a short `TwitterAwait` throwing `TimeoutException`). | | `SerializedState.scala` | The five wire-format key constants (`CP_STATE_KEY` / `DP_STATE_KEY` / `IN_FLIGHT_MSG_KEY` / `DP_QUEUED_MSG_KEY` / `OUTPUT_MSG_KEY`) — a rename would silently break checkpoint files written under the old names. `fromObject` captures non-empty bytes + non-negative `serializerId` + non-null `manifest`. Round-trip via `toObject` preserves value equality for a case class (top-level on the companion, intentionally not nested so Kryo doesn't try to serialize a captured outer reference), a boxed `Integer`, and an immutable `Map[String, Int]`. `size()` equals `bytes.length` for populated and empty `SerializedState` values. | The suite owns a suite-local Pekko `ActorSystem` injected into `Serialization`, torn down via `TestKit.shutdownActorSystem` in `afterAll` so no Pekko threads outlive the run (same pattern as `CheckpointSubsystemSpec`). No production code changed; this is test-only. ### Any related issues, documentation, discussions? Closes #5398 ### How was this PR tested? ``` sbt "WorkflowExecutionService/Test/testOnly org.apache.texera.amber.engine.common.EngineCommonConversionsSpec" # → 14 tests, all pass sbt "WorkflowExecutionService/Test/scalafmtCheck" # → clean ``` ### Was this PR authored or co-authored using generative AI tooling? Generated-by: Claude Code (Claude Opus 4.7) Report URL: https://github.com/apache/texera/actions/runs/27726980871 With regards, GitHub Actions via GitBox
