Messages were in-memory only — gone on leaving the conversation. - MessageStore: keystore-backed (no plaintext), a capped per-peer JSON list (last 200). Simple; the encrypted Drift DB is the eventual home at scale. - MessagesCubit: loads saved history on start (subscribes FIRST, then loads, so a message arriving during the load isn't dropped) and persists every sent and received message. Wired via DI + TaneApp(messageStore). Tests (plain 'test', no hang risk): MessageStore round-trip/per-peer/cap, and a cubit test that reopens a fresh cubit and sees the saved conversation. Analyzer clean; run 'flutter test' locally to confirm.
120 lines
4.1 KiB
Dart
120 lines
4.1 KiB
Dart
import 'dart:async';
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import 'package:commons_core/commons_core.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tane/services/message_store.dart';
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import 'package:tane/state/messages_cubit.dart';
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import '../support/test_support.dart';
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/// In-memory [MessageTransport]: records sends, lets a test push inbox messages.
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class FakeMessageTransport implements MessageTransport {
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final List<({String to, String text})> sent = [];
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final StreamController<PrivateMessage> _inbox =
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StreamController<PrivateMessage>.broadcast();
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void receive(PrivateMessage message) => _inbox.add(message);
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@override
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Future<void> send({required String toPubkey, required String text}) async =>
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sent.add((to: toPubkey, text: text));
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@override
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Stream<PrivateMessage> inbox() => _inbox.stream;
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@override
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Future<void> close() async => _inbox.close();
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}
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void main() {
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const peer = 'aa';
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const me = 'bb';
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PrivateMessage msg(String from, String text) =>
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PrivateMessage(fromPubkey: from, text: text, at: DateTime(2026));
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test('receives messages from the peer only', () async {
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final transport = FakeMessageTransport();
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final cubit =
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MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
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transport.receive(msg(peer, 'hola'));
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transport.receive(msg('cc', 'not for this chat')); // other conversation
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await pumpEventQueue();
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expect(cubit.state.messages, hasLength(1));
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expect(cubit.state.messages.single.text, 'hola');
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expect(cubit.isMine(cubit.state.messages.single), isFalse);
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await cubit.close();
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});
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test('send delivers to the peer and appends our own message', () async {
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final transport = FakeMessageTransport();
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final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me);
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await cubit.send(' ¿cambiamos? ');
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expect(transport.sent, [(to: peer, text: '¿cambiamos?')]);
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expect(cubit.state.messages, hasLength(1));
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expect(cubit.isMine(cubit.state.messages.single), isTrue);
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expect(cubit.state.sending, isFalse);
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await cubit.close();
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});
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test('a full exchange keeps order and sides', () async {
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final transport = FakeMessageTransport();
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final cubit =
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MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
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await cubit.send('hi');
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transport.receive(msg(peer, 'hello'));
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await pumpEventQueue();
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expect(cubit.state.messages.map((m) => m.text), ['hi', 'hello']);
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expect(cubit.state.messages.map(cubit.isMine), [true, false]);
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await cubit.close();
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});
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test('empty/whitespace text is not sent', () async {
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final transport = FakeMessageTransport();
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final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me);
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await cubit.send(' ');
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expect(transport.sent, isEmpty);
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expect(cubit.state.messages, isEmpty);
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await cubit.close();
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});
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test('loads saved history on start and persists across a new cubit',
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() async {
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final store = MessageStore(InMemorySecretStore());
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await store.append(
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peer, msg(peer, 'earlier')); // a message from a previous session
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final transport = FakeMessageTransport();
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final cubit = MessagesCubit(transport,
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peerPubkey: peer, selfPubkey: me, store: store);
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await cubit.start();
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expect(cubit.state.messages.map((m) => m.text), ['earlier']);
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await cubit.send('hi'); // persisted
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transport.receive(msg(peer, 'reply')); // persisted
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await pumpEventQueue();
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expect(cubit.state.messages.map((m) => m.text), ['earlier', 'hi', 'reply']);
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await cubit.close();
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// A fresh cubit (even offline) sees the saved conversation.
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final reopened =
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MessagesCubit(null, peerPubkey: peer, selfPubkey: me, store: store);
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await reopened.start();
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expect(reopened.state.messages.map((m) => m.text),
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['earlier', 'hi', 'reply']);
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await reopened.close();
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});
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test('offline (no transport) never throws', () async {
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final cubit = MessagesCubit(null, peerPubkey: peer, selfPubkey: me)..start();
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expect(cubit.isOnline, isFalse);
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await cubit.send('hi');
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expect(cubit.state.messages, isEmpty);
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await cubit.close();
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});
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}
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