[FLINK-39785][table] Add e2e tests for LateralSnapshotJoin#28713
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…h-down source Wire the existing source.sleep-after-elements / source.sleep-time options into TestValuesScanTableSourceWithWatermarkPushDown Generated-By: Claude Opus 4.8 (1M context)
…st framework Lets restore tests take the stop-with-savepoint at a point defined by an input-side signal rather than sink output, so operators that emit nothing at the point of interest can be captured. * RestoreTestBase: extract the trigger into an overridable awaitSavepointReady (default unchanged: waits for sinks to reach their before-restore rows) and retry stop-with-savepoint while the job is not yet fully running. * TestValues watermark-push-down NewSource: add a per-table emission barrier (TestValuesTableFactory#awaitSourceEmitted) completed as rows are emitted. Generated-By: Claude Opus 4.8 (1M context)
Adds end-to-end coverage for the LATERAL SNAPSHOT processing-time temporal join: * LateralSnapshotJoinITCase: result tests over HEAP and ROCKSDB backends covering different configurations and input scenarios * LateralSnapshotJoinRestoreTest / LateralSnapshotJoinTestPrograms: savepoint restore tests Generated-By: Claude Opus 4.8 (1M context)
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What is the purpose of the change
This PR adds end-2-end and restore tests for the LATERAL SNAPSHOT join.
Brief change log
FromElementSourceFunctionWithWatermarkRestoreTestBaseLateralSnapshotJoinITCaseLateralSnapshotJoinTestProgramsVerifying this change
This is a tests-only PR.
Does this pull request potentially affect one of the following parts:
@Public(Evolving): noDocumentation
Was generative AI tooling used to co-author this PR?
Generated-by: Claude Code 2.1.200 (Opus 4.8)