KAFKA-20501: Add IQv1 isolation-level integration tests - #22957
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KAFKA-20501: Add IQv1 isolation-level integration tests#22957nicktelford wants to merge 1 commit into
nicktelford wants to merge 1 commit into
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The interactive-query isolation-level support added under KIP-892 spans many store implementations, but has so far only been covered by unit tests. This adds end-to-end IQv1 integration tests proving that a READ_COMMITTED query observes only committed records while a READ_UNCOMMITTED query sees uncommitted writes, across all store shapes (in-memory and persistent key-value, window, and session stores, plus persistent versioned stores). Shared harness setup lives in IsolationLevelIntegrationFixtures, which the IQv2 counterpart test (KAFKA-20502, on a separate stacked branch) also reuses. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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The interactive-query isolation-level support added under KIP-892 spans many store implementations, but has so far only been covered by unit tests. That leaves the end-to-end behaviour — that a READ_COMMITTED query observes only committed records while a READ_UNCOMMITTED query sees uncommitted writes — unverified against a running Streams application.
This adds end-to-end IQv1 integration tests exercising all store shapes (in-memory and persistent key-value, window, and session stores, plus persistent versioned stores). Shared harness setup lives in
IsolationLevelIntegrationFixtures, which the IQv2 counterpart (KAFKA-20502, stacked on this branch) also reuses.