Joseph Doherty 543b791cb5 feat: port remaining JetStream core tests from Go (edge cases, preconditions, direct get) ...

Adds 110 new tests across 5 files covering gaps identified from Go's jetstream_test.go:

- JetStreamStreamEdgeCaseTests (29 tests): max msgs/bytes enforcement, discard
  old/new policies, max msg size, max msgs per subject, sealed/deny-delete/deny-purge
  config, work queue and interest retention, state tracking, CRUD edges.

- JetStreamConsumerDeliveryEdgeTests (25 tests): AckProcessor unit tests (register,
  drop, ack floor, expiry, redelivery), push consumer heartbeat/flow-control frames,
  pull fetch no-wait, batch limit, filter delivery, wildcard filter, ack explicit
  pending tracking, ack-all clearing, work queue pull consumer.

- JetStreamPublishPreconditionTests (21 tests): expected-last-seq match/mismatch,
  duplicate window dedup acceptance/rejection, window expiry allows re-publish,
  PublishPreconditions unit tests (IsDuplicate, Record, TrimOlderThan,
  CheckExpectedLastSeq), pub ack stream/seq fields, sequential writes enforcement.

- JetStreamAccountLimitTests (17 tests): max streams per account (1/3/unlimited),
  slot freed on delete, Account.TryReserveStream/ReleaseStream unit tests,
  JetStreamStreamCount tracking, account info stream/consumer counts, stream names
  sorted, consumer names list, error code 10027 on limit exceeded.

- JetStreamDirectGetTests (18 tests): direct get by sequence (first/middle/last),
  subject preservation, non-existent sequence error, empty stream error, zero seq
  error, multiple independent retrieves, STREAM.MSG.GET API, get-after-delete,
  get-after-purge, memory storage, backend type reporting, consistency between
  direct get and stream msg get.

Go reference: golang/nats-server/server/jetstream_test.go

2026-02-24 06:47:17 -05:00

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