halkyon-days/serverpod-offline-sync
Watch
1
0
Fork
You've already forked serverpod-offline-sync
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

chore: Move the drift_offline_first to legacy in favor of Serverpod implementation (#32)

Browse source
This commit is contained in:
Marcelo Mendonça Soares 2026-04-05 23:20:21 -03:00 • committed by Marcelo Soares
commit cbc472523b
No known key found for this signature in database
GPG key ID: CB2F09CE66E99EAD
1 changed files with 13575 additions and 284 deletions
Download patch file Download diff file Expand all files Collapse all files

106
legacy/drift_offline_sync/test/hlc/hlc_merge_test.dart Normal file
View file

@ -0,0 +1,106 @@
import 'package:clock/clock.dart';
import 'package:drift_offline_sync/drift_offline_sync.dart';
import 'package:test/test.dart';
final _dateTime = DateTime.now().toUtc();
void main() {
group('Given local canonical Hlc and remote with higher time', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime.advance(), 2, 'abd');
test('when merging then result has remote time and counter with local nodeId.', () {
final hlc = canonical.merge(remote);
expect(hlc, Hlc(remote.dateTime, remote.counter, canonical.nodeId));
});
});
group('Given local canonical Hlc and remote with same time but higher counter', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime, 18, 'abd');
test('when merging then result has remote counter with local nodeId.', () {
final hlc = canonical.merge(remote);
expect(hlc, Hlc(canonical.dateTime, remote.counter, canonical.nodeId));
});
});
group('Given local canonical Hlc and remote with same time and counter', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime, 17, 'abd');
test('when merging then local is returned.', () {
final hlc = canonical.merge(remote);
expect(hlc, equals(canonical));
});
});
group('Given local canonical Hlc and remote with lower time', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime.retreat(), 17, 'abcd');
test('when merging then local is returned.', () {
final hlc = canonical.merge(remote);
expect(hlc, equals(canonical));
});
});
group('Given local canonical Hlc and remote with same nodeId and same time', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime, 17, 'abc');
test('when merging then node id is not checked and local is returned.', () {
expect(canonical.merge(remote), canonical);
});
});
group('Given local canonical Hlc and remote with same nodeId and lower time', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime.retreat(), 17, 'abc');
test('when merging then node id is not checked and local is returned.', () {
expect(canonical.merge(remote), canonical);
});
});
group('Given local canonical Hlc and remote with same nodeId and higher time', () {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime.advance(), 0, 'abc');
test('when merging then DuplicateNodeException is thrown.', () {
expect(
() => canonical.merge(remote),
throwsA(isA<DuplicateNodeException>()),
);
});
});
group(
'Given local canonical Hlc and remote with time more than one minute ahead of wall',
() {
final canonical = Hlc(_dateTime, 17, 'abc');
final remote = Hlc(_dateTime.advance(const Duration(minutes: 2)), 17, 'abd');
test('when merging then ClockDriftException is thrown.', () {
withClock(Clock.fixed(_dateTime.advance()), () {
expect(
() => canonical.merge(remote),
throwsA(isA<ClockDriftException>()),
);
});
});
},
);
}
extension on DateTime {
DateTime advance([Duration duration = const Duration(milliseconds: 1)]) =>
add(duration);
DateTime retreat([Duration duration = const Duration(milliseconds: 1)]) =>
subtract(duration);
}