tane/apps/app_seeds/test/state/messages_cubit_test.dart
vjrj efd64c4da4 feat(block2): messaging UI — private 1:1 chat (NIP-17)
- MessagesCubit: 1:1 conversation over MessageTransport. Filters the shared
  inbox to the peer; tags our own sends with our pubkey (NIP-17 wraps don't come
  back to the sender) so the UI can align bubbles; degrades gracefully offline.
- ChatScreen (mockup 10): message bubbles (mine right / peer left) + a composer;
  opens a session lazily, shows 'set up sharing' when there's no relay.
- Entry point: a 'Message' button on each offer card (hidden on your own
  listings) → /chat/:pubkey.
- Routing + i18n en/es/pt.

Tests: 5 cubit (send/receive/order/filter/offline) + chat offline + market, green.
2026-07-10 10:59:47 +02:00

90 lines
3 KiB
Dart

import 'dart:async';
import 'package:commons_core/commons_core.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:tane/state/messages_cubit.dart';
/// In-memory [MessageTransport]: records sends, lets a test push inbox messages.
class FakeMessageTransport implements MessageTransport {
final List<({String to, String text})> sent = [];
final StreamController<PrivateMessage> _inbox =
StreamController<PrivateMessage>.broadcast();
void receive(PrivateMessage message) => _inbox.add(message);
@override
Future<void> send({required String toPubkey, required String text}) async =>
sent.add((to: toPubkey, text: text));
@override
Stream<PrivateMessage> inbox() => _inbox.stream;
@override
Future<void> close() async => _inbox.close();
}
void main() {
const peer = 'aa';
const me = 'bb';
PrivateMessage msg(String from, String text) =>
PrivateMessage(fromPubkey: from, text: text, at: DateTime(2026));
test('receives messages from the peer only', () async {
final transport = FakeMessageTransport();
final cubit =
MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
transport.receive(msg(peer, 'hola'));
transport.receive(msg('cc', 'not for this chat')); // other conversation
await pumpEventQueue();
expect(cubit.state.messages, hasLength(1));
expect(cubit.state.messages.single.text, 'hola');
expect(cubit.isMine(cubit.state.messages.single), isFalse);
await cubit.close();
});
test('send delivers to the peer and appends our own message', () async {
final transport = FakeMessageTransport();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me);
await cubit.send(' ¿cambiamos? ');
expect(transport.sent, [(to: peer, text: '¿cambiamos?')]);
expect(cubit.state.messages, hasLength(1));
expect(cubit.isMine(cubit.state.messages.single), isTrue);
expect(cubit.state.sending, isFalse);
await cubit.close();
});
test('a full exchange keeps order and sides', () async {
final transport = FakeMessageTransport();
final cubit =
MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
await cubit.send('hi');
transport.receive(msg(peer, 'hello'));
await pumpEventQueue();
expect(cubit.state.messages.map((m) => m.text), ['hi', 'hello']);
expect(cubit.state.messages.map(cubit.isMine), [true, false]);
await cubit.close();
});
test('empty/whitespace text is not sent', () async {
final transport = FakeMessageTransport();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me);
await cubit.send(' ');
expect(transport.sent, isEmpty);
expect(cubit.state.messages, isEmpty);
await cubit.close();
});
test('offline (no transport) never throws', () async {
final cubit = MessagesCubit(null, peerPubkey: peer, selfPubkey: me)..start();
expect(cubit.isOnline, isFalse);
await cubit.send('hi');
expect(cubit.state.messages, isEmpty);
await cubit.close();
});
}