refactor: Move the core implementation to the shared package with no manual queries (#107)
This commit is contained in:
Marcelo Mendonça Soares
GitHub
parent
92a8e22d04
commit
9f2ce4d9e6
1 changed files with 1992 additions and 14018 deletions
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@ -0,0 +1,414 @@
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import 'dart:async';
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import 'package:serverpod_offline_sync/serverpod_offline_sync.dart';
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import 'package:test/test.dart';
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import 'package:uuid/uuid.dart';
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void main() {
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group('Given an HlcManager,', () {
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final userId = const Uuid().v7obj();
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final nodeId = const Uuid().v7obj();
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final lastHlc = Hlc(DateTime.utc(2026, 5, 10, 12), 7, nodeId);
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final manager = HlcManager.forScope(
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CrdtScope(
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id: 42,
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uuidScopeId: userId,
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currentNodeId: 9,
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currentNode: CrdtNode(
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id: 9,
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uuidNodeId: nodeId,
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lastHlc: lastHlc,
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),
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),
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);
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test(
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'when getting the node, '
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'then the persisted node shape is preserved.',
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() {
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final node = manager.getNode();
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expect(node.id, 9);
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expect(node.uuidNodeId, nodeId);
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expect(node.lastHlc, lastHlc);
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},
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);
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});
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group('Given a sync stream with complete framed sync batches,', () {
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final uuidScopeId = const Uuid().v7obj();
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final rowId = const Uuid().v7obj();
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final requesterNodeId = const Uuid().v7obj();
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final row = CrdtNode(uuidNodeId: rowId);
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeInsert(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 12),
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hlcCounter: 1,
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tableName: 'person',
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uuidRowId: rowId,
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uuidNodeId: requesterNodeId,
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data: row,
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),
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],
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),
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CrdtSyncEndOfBatch(),
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeDelete(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 13),
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hlcCounter: 2,
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tableName: 'person',
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uuidRowId: rowId,
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uuidNodeId: requesterNodeId,
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clFlag: 2,
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reason: CrdtDataDeletedReason.userDelete,
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),
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],
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),
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CrdtSyncEndOfBatch(),
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]);
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test(
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'when collecting batches, '
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'then each framed batch becomes a merge set.',
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() async {
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final iterator = StreamIterator(stream);
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final firstBatch = await iterator.collectNextBatch();
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final secondBatch = await iterator.collectNextBatch();
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expect(firstBatch, isNotNull);
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expect(secondBatch, isNotNull);
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expect(firstBatch!.changes.inserts, hasLength(1));
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expect(firstBatch.changes.deletes, isEmpty);
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expect(secondBatch!.changes.inserts, isEmpty);
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expect(secondBatch.changes.deletes, hasLength(1));
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expect(
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iterator.collectNextBatch,
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throwsA(isA<CrdtSyncStreamClosedException>()),
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);
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},
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);
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test(
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'when collecting the next batch, '
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'then batched merge changes are preserved.',
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() async {
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final singleBatchStream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeInsert(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 16),
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hlcCounter: 1,
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tableName: 'person',
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uuidRowId: rowId,
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uuidNodeId: requesterNodeId,
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data: row,
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),
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CrdtMergeDelete(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 17),
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hlcCounter: 2,
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tableName: 'person',
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uuidRowId: rowId,
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uuidNodeId: requesterNodeId,
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clFlag: 2,
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reason: CrdtDataDeletedReason.userDelete,
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),
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],
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),
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CrdtSyncEndOfBatch(),
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]);
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final batch = await StreamIterator(singleBatchStream).collectNextBatch();
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expect(batch, isNotNull);
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expect(batch!.changes, hasLength(2));
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},
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);
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});
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test(
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'Given a stream that starts with CrdtSyncEndOfBatch, '
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'when collecting the next batch, '
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'then an empty merge set is returned.',
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() async {
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncEndOfBatch(),
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]);
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final iterator = StreamIterator(stream);
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final batch = await iterator.collectNextBatch();
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expect(batch, isNotNull);
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expect(batch!.isEmpty, isTrue);
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expect(batch.changes, isEmpty);
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},
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);
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test(
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'Given a stream that is idle before a batch starts, '
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'when collecting the next batch, '
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'then an empty merge set is returned.',
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() async {
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncIdleTimeout(),
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]);
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final iterator = StreamIterator(stream);
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final batch = await iterator.collectNextBatch();
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expect(batch, isNotNull);
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expect(batch!.isEmpty, isTrue);
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expect(batch.changes, isEmpty);
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},
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);
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test(
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'Given a stream that is idle after a merge batch, '
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'when collecting the next batch, '
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'then the idle event does not end the batch.',
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() async {
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final uuidScopeId = const Uuid().v7obj();
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final rowId = const Uuid().v7obj();
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final requesterNodeId = const Uuid().v7obj();
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeDelete(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 14),
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hlcCounter: 3,
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tableName: 'person',
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uuidRowId: rowId,
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uuidNodeId: requesterNodeId,
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clFlag: 2,
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reason: CrdtDataDeletedReason.userDelete,
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),
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],
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),
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CrdtSyncIdleTimeout(),
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CrdtSyncEndOfBatch(),
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]);
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final iterator = StreamIterator(stream);
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final batch = await iterator.collectNextBatch();
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expect(batch, isNotNull);
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expect(batch!.changes.deletes, hasLength(1));
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},
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);
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test(
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'Given a stream with CrdtSyncClose before CrdtSyncEndOfBatch, '
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'when collecting the next batch, '
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'then changes are discarded and null is returned.',
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() async {
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final uuidScopeId = const Uuid().v7obj();
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeDelete(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 14),
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hlcCounter: 3,
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tableName: 'person',
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uuidRowId: const Uuid().v7obj(),
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uuidNodeId: const Uuid().v7obj(),
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clFlag: 2,
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reason: CrdtDataDeletedReason.userDelete,
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),
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],
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),
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CrdtSyncClose(),
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]);
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final iterator = StreamIterator(stream);
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final batch = await iterator.collectNextBatch();
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expect(batch, isNull);
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},
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);
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test(
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'Given an empty stream, '
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'when collecting the next batch allowing close before batch, '
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'then null is returned.',
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() async {
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const stream = Stream<CrdtSyncStreamEvent>.empty();
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final iterator = StreamIterator(stream);
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final batch = await iterator.collectNextBatch(allowCloseBeforeBatch: true);
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expect(batch, isNull);
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},
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);
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test(
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'Given an empty stream, '
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'when collecting the next batch, '
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'then collection fails.',
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() async {
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const stream = Stream<CrdtSyncStreamEvent>.empty();
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final iterator = StreamIterator(stream);
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expect(
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iterator.collectNextBatch,
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throwsA(isA<CrdtSyncStreamClosedException>()),
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);
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},
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);
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test(
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'Given a stream that ends without CrdtSyncEndOfBatch, '
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'when collecting the next batch, '
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'then collection fails.',
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() async {
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final uuidScopeId = const Uuid().v7obj();
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeDelete(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 14),
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hlcCounter: 3,
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tableName: 'person',
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uuidRowId: const Uuid().v7obj(),
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uuidNodeId: const Uuid().v7obj(),
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clFlag: 2,
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reason: CrdtDataDeletedReason.userDelete,
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),
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],
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),
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]);
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final iterator = StreamIterator(stream);
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expect(
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iterator.collectNextBatch,
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throwsA(isA<CrdtSyncStreamClosedException>()),
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);
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},
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);
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test(
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'Given a stream that ends after a merge batch without CrdtSyncEndOfBatch, '
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'when collecting the next batch allowing close before batch, '
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'then collection fails.',
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() async {
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final uuidScopeId = const Uuid().v7obj();
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncMergeChunk(
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changes: [
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CrdtMergeDelete(
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uuidScopeId: uuidScopeId,
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hlcDatetime: DateTime.utc(2026, 5, 10, 14),
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hlcCounter: 3,
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tableName: 'person',
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uuidRowId: const Uuid().v7obj(),
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uuidNodeId: const Uuid().v7obj(),
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clFlag: 2,
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reason: CrdtDataDeletedReason.userDelete,
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),
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],
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),
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]);
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final iterator = StreamIterator(stream);
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expect(
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() => iterator.collectNextBatch(allowCloseBeforeBatch: true),
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throwsA(isA<CrdtSyncStreamClosedException>()),
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);
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},
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);
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test(
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'Given an empty stream, '
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'when expecting CrdtSyncConnect, '
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'then it throws a CrdtSyncStreamClosedException.',
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() async {
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const stream = Stream<CrdtSyncStreamEvent>.empty();
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final iterator = StreamIterator(stream);
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expect(
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() => iterator.moveAndThrowIfNot<CrdtSyncConnect>(),
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throwsA(
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isA<CrdtSyncStreamClosedException>().having(
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(exception) => exception.toString(),
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'toString',
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'CrdtSyncStreamClosedException: sync stream closed before '
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'"CrdtSyncConnect" event.',
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),
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),
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);
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},
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);
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test(
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'Given a stream starting with CrdtSyncEndOfBatch, '
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'when expecting CrdtSyncConnect, '
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'then it throws a CrdtSyncUnexpectedEventException.',
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() async {
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncEndOfBatch(),
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]);
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final iterator = StreamIterator(stream);
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expect(
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() => iterator.moveAndThrowIfNot<CrdtSyncConnect>(),
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throwsA(
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isA<CrdtSyncUnexpectedEventException>()
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.having(
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(exception) => exception.received,
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'received',
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isA<CrdtSyncEndOfBatch>(),
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)
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.having(
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(exception) => exception.toString(),
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'toString',
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'CrdtSyncUnexpectedEventException: expected "CrdtSyncConnect", but '
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'received "CrdtSyncEndOfBatch" instead.',
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),
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),
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);
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},
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);
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test(
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'Given a stream starting with CrdtSyncConnect, '
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'when expecting CrdtSyncClose, '
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'then it throws a CrdtSyncUnexpectedEventException.',
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() async {
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final stream = Stream<CrdtSyncStreamEvent>.fromIterable([
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CrdtSyncConnect(
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localNodeId: const Uuid().v7obj(),
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syncTablesHash: 'hash',
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),
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]);
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final iterator = StreamIterator(stream);
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expect(
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() => iterator.moveAndThrowIfNot<CrdtSyncClose>(),
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throwsA(
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isA<CrdtSyncUnexpectedEventException>()
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.having(
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(exception) => exception.received,
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'received',
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isA<CrdtSyncConnect>(),
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)
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.having(
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(exception) => exception.toString(),
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'toString',
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'CrdtSyncUnexpectedEventException: expected "CrdtSyncClose", but '
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'received "CrdtSyncConnect" instead.',
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),
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),
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);
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},
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);
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}
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