vjrj
f17ae7751c
Bound market memory and let large areas page instead of loading everything: - DiscoveryQuery gains an until cursor; OfferTransport gains discoverPage() (one-shot, EOSE-bounded, newest-first) alongside the existing live discover() stream, which now accepts since so it only carries NEW offers going forward. - NostrOfferTransport.discoverPage sorts by created_at desc and derives the next cursor from the oldest event seen (not the oldest type-matched one, so filtering never skips a page). - OffersCubit: discover() fetches the first page + opens a since=now live sub; loadNextPage() pages further back; the in-memory list is capped at 400 offers (each can carry a ~40KB inline photo thumbnail, so unbounded growth in a busy area was a real OOM risk). - market_screen: infinite scroll via a scroll-position trigger + footer spinner, instead of a single unbounded ListView. - Added discoverPage unit tests (commons_core) and cubit pagination tests (first page/cursor, accumulation, cap, cross-page dedup).
838 lines
27 KiB
Dart
838 lines
27 KiB
Dart
import 'dart:async';
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import 'dart:typed_data';
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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/data/variety_repository.dart';
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import 'package:tane/db/enums.dart';
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import 'package:tane/services/discovery_area.dart';
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import 'package:tane/services/offer_mapper.dart';
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import 'package:tane/services/offer_outbox.dart';
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import 'package:tane/state/offers_cubit.dart';
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import '../support/test_support.dart';
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/// In-memory [OfferTransport] for tests: addressable by id, discover matches by
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/// geohash prefix. No relay, no network.
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class FakeOfferTransport implements OfferTransport {
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final List<Offer> _offers = [];
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@override
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Future<PublishResult> publish(Offer offer) async {
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_offers.removeWhere((o) => o.id == offer.id);
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_offers.add(offer);
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return PublishResult(accepted: true, transportRef: offer.id);
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}
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@override
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Stream<Offer> discover(DiscoveryQuery query, {int? since}) {
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final controller = StreamController<Offer>();
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for (final o in _offers) {
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if (o.approxGeohash.startsWith(query.geohashPrefix)) controller.add(o);
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}
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return controller.stream; // left open (live), like a real subscription
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}
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@override
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Future<OfferPage> discoverPage(DiscoveryQuery query) async {
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final matches = [
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for (final o in _offers)
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if (o.approxGeohash.startsWith(query.geohashPrefix)) o,
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];
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return OfferPage(offers: matches); // short page → nothing older to load
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}
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@override
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Future<void> retract(String offerId) async =>
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_offers.removeWhere((o) => o.id == offerId);
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@override
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Future<void> close() async {}
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}
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/// Emits every published offer TWICE on discover — the way a relay legitimately
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/// resends an addressable event (a stored copy plus a live echo). Used to prove
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/// the cubit dedups instead of doubling the listing.
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class DuplicatingOfferTransport implements OfferTransport {
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final List<Offer> _offers = [];
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@override
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Future<PublishResult> publish(Offer offer) async {
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_offers.add(offer);
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return PublishResult(accepted: true, transportRef: offer.id);
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}
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@override
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Stream<Offer> discover(DiscoveryQuery query, {int? since}) {
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final controller = StreamController<Offer>();
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for (final o in _offers) {
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if (o.approxGeohash.startsWith(query.geohashPrefix)) {
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controller.add(o);
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controller.add(o); // the duplicate
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}
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}
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return controller.stream;
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}
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@override
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Future<OfferPage> discoverPage(DiscoveryQuery query) async {
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// The stored copy (deduped at relay level); the live echo (the duplicate)
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// still arrives via [discover], so the cubit's dedup is what's under test.
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final matches = [
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for (final o in _offers)
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if (o.approxGeohash.startsWith(query.geohashPrefix)) o,
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];
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return OfferPage(offers: matches);
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}
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@override
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Future<void> retract(String offerId) async =>
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_offers.removeWhere((o) => o.id == offerId);
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@override
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Future<void> close() async {}
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}
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/// A transport that serves offers in `until`-cursored pages (like a relay's
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/// stored events), so the cubit's pagination and memory cap can be exercised.
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/// Each seeded offer gets a descending createdAt; [discover] (live) is empty.
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class PaginatingOfferTransport implements OfferTransport {
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PaginatingOfferTransport(int count, {this.geohash = 'sp3e9'}) {
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// Newest (highest createdAt) first: offer 0 is newest.
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for (var i = 0; i < count; i++) {
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_byCreatedAt.add((
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createdAt: 1000000 - i,
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offer: Offer(
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id: 'o$i',
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authorPubkeyHex: 'ab' * 32,
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summary: 'offer $i',
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type: OfferType.gift,
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approxGeohash: geohash,
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),
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));
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}
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}
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final String geohash;
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final List<({int createdAt, Offer offer})> _byCreatedAt = [];
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@override
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Stream<Offer> discover(DiscoveryQuery query, {int? since}) =>
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const Stream.empty();
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@override
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Future<OfferPage> discoverPage(DiscoveryQuery query) async {
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final matched = _byCreatedAt
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.where((e) => e.offer.approxGeohash.startsWith(query.geohashPrefix))
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.where((e) => query.until == null || e.createdAt <= query.until!)
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.toList()
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..sort((a, b) => b.createdAt.compareTo(a.createdAt));
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final page = matched.take(query.limit).toList();
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final nextCursor = page.length >= query.limit && page.isNotEmpty
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? page.last.createdAt - 1
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: null;
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return OfferPage(
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offers: [for (final e in page) e.offer],
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nextCursor: nextCursor,
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);
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}
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@override
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Future<PublishResult> publish(Offer offer) async =>
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PublishResult(accepted: true, transportRef: offer.id);
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@override
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Future<void> retract(String offerId) async {}
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@override
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Future<void> close() async {}
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}
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void main() {
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group('OfferMapper', () {
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test('maps local sharing intent to the network offer type', () {
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expect(OfferMapper.offerTypeFor(OfferStatus.shared), OfferType.gift);
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expect(OfferMapper.offerTypeFor(OfferStatus.exchange), OfferType.exchange);
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expect(OfferMapper.offerTypeFor(OfferStatus.sell), OfferType.sale);
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});
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test('never publishes a private lot', () {
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expect(() => OfferMapper.offerTypeFor(OfferStatus.private),
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throwsArgumentError);
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});
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test('builds an offer, keeping price only for a sale', () {
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final gift = OfferMapper.fromSharedLot(
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lotId: 'lot-1',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Tomate rosa',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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priceAmount: 5, // should be dropped for a gift
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);
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expect(gift.type, OfferType.gift);
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expect(gift.id, 'lot-1');
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expect(gift.priceAmount, isNull);
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final sale = OfferMapper.fromSharedLot(
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lotId: 'lot-2',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Judía',
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sharing: OfferStatus.sell,
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areaGeohash: 'sp3e9',
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priceAmount: 3,
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priceCurrency: 'G1',
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);
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expect(sale.type, OfferType.sale);
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expect(sale.priceAmount, 3);
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expect(sale.priceCurrency, 'G1');
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});
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test('carries the organic (eco) flag through to the offer', () {
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final eco = OfferMapper.fromSharedLot(
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lotId: 'lot-1',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Lechuga',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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isOrganic: true,
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);
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expect(eco.isOrganic, isTrue);
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final plain = OfferMapper.fromSharedLot(
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lotId: 'lot-2',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Lechuga',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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);
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expect(plain.isOrganic, isFalse);
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});
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});
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group('OffersCubit', () {
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test('discovers published offers by geohash prefix', () async {
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final transport = FakeOfferTransport();
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-1',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Tomate rosa de Barbastro',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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final cubit = OffersCubit(transport);
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await cubit.discover('sp3');
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await pumpEventQueue();
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expect(cubit.state.hasSearched, isTrue);
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expect(cubit.state.searching, isFalse);
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expect(cubit.state.offers, hasLength(1));
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expect(cubit.state.offers.single.summary, 'Tomate rosa de Barbastro');
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await cubit.close();
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});
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test('search narrows visible offers by summary, keeping the full list',
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() async {
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final transport = FakeOfferTransport();
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for (final s in ['Tomate rosa', 'Judía verde', 'Tomate rojo']) {
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: s,
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authorPubkeyHex: 'ab' * 32,
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summary: s,
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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}
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final cubit = OffersCubit(transport);
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await cubit.discover('sp3');
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await pumpEventQueue();
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expect(cubit.state.offers, hasLength(3));
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cubit.search('tomate'); // case-insensitive
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expect(cubit.state.visibleOffers.map((o) => o.summary),
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containsAll(['Tomate rosa', 'Tomate rojo']));
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expect(cubit.state.visibleOffers, hasLength(2));
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expect(cubit.state.offers, hasLength(3)); // underlying list untouched
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cubit.search(''); // clearing shows everything again
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expect(cubit.state.visibleOffers, hasLength(3));
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await cubit.close();
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});
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test('blocked authors disappear from the visible list and can resurface',
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() async {
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final transport = FakeOfferTransport();
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-good',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Tomate rosa',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-spam',
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authorPubkeyHex: 'cd' * 32,
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summary: 'Spam total',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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final cubit = OffersCubit(transport);
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await cubit.discover('sp3');
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await pumpEventQueue();
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expect(cubit.state.visibleOffers, hasLength(2));
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cubit.setBlockedAuthors({'cd' * 32});
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expect(cubit.state.visibleOffers.map((o) => o.summary), ['Tomate rosa']);
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expect(cubit.state.offers, hasLength(2)); // discoveries kept underneath
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// The blocklist survives a refresh (re-discovery resets results only).
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await cubit.discover('sp3');
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await pumpEventQueue();
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expect(cubit.state.visibleOffers.map((o) => o.summary), ['Tomate rosa']);
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cubit.setBlockedAuthors(const {}); // unblock resurfaces
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expect(cubit.state.visibleOffers, hasLength(2));
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await cubit.close();
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});
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test('a hidden (reported) offer disappears without touching its author',
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() async {
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final transport = FakeOfferTransport();
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for (final id in ['lot-1', 'lot-2']) {
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: id,
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authorPubkeyHex: 'ab' * 32,
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summary: 'Oferta $id',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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}
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final cubit = OffersCubit(transport);
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await cubit.discover('sp3');
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await pumpEventQueue();
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expect(cubit.state.visibleOffers, hasLength(2));
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cubit.setHiddenOffers({'${'ab' * 32}:lot-1'});
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expect(cubit.state.visibleOffers.map((o) => o.id), ['lot-2']);
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await cubit.close();
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});
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test('the search filter survives a refresh (re-discovery)', () async {
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final transport = FakeOfferTransport();
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-1',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Pimiento',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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final cubit = OffersCubit(transport);
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await cubit.discover('sp3');
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await pumpEventQueue();
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cubit.search('pim');
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expect(cubit.state.query, 'pim');
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await cubit.discover('sp3'); // pull-to-refresh
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await pumpEventQueue();
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expect(cubit.state.query, 'pim'); // kept across the refresh
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expect(cubit.state.visibleOffers, hasLength(1));
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await cubit.close();
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});
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test('a neighbour in an adjacent cell is found via the coarsened prefix',
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() async {
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// Regression: A publishes at 'sp3e9', B lives one ±2.4 km cell over at
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// 'sp3e8'. Searching B's full 5-char area misses it; searching the
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// precision-4 prefix ('sp3e') finds it, because publish emits the ladder.
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final transport = FakeOfferTransport();
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-1',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Tomate rosa',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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final cubit = OffersCubit(transport);
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await cubit.discover(searchPrefix('sp3e8', 4)); // 'sp3e'
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await pumpEventQueue();
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expect(cubit.state.offers, hasLength(1));
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await cubit.discover('sp3e8'); // full precision → the old, broken behaviour
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await pumpEventQueue();
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expect(cubit.state.offers, isEmpty);
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await cubit.close();
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});
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test('a different area finds nothing', () async {
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final transport = FakeOfferTransport();
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await transport.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-1',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Pimiento',
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sharing: OfferStatus.shared,
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areaGeohash: 'sp3e9',
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));
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final cubit = OffersCubit(transport);
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await cubit.discover('u09');
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await pumpEventQueue();
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expect(cubit.state.offers, isEmpty);
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await cubit.close();
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});
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test('publish reports the transport verdict', () async {
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final cubit = OffersCubit(FakeOfferTransport());
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final result = await cubit.publish(OfferMapper.fromSharedLot(
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lotId: 'lot-9',
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authorPubkeyHex: 'ab' * 32,
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summary: 'Calabaza',
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sharing: OfferStatus.exchange,
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areaGeohash: 'sp3e9',
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exchangeTerms: 'a cambio de legumbre',
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));
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expect(result.accepted, isTrue);
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expect(cubit.state.publishing, isFalse);
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await cubit.close();
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});
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test('publishLots publishes each shared lot and counts acceptances',
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() async {
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final transport = FakeOfferTransport();
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final cubit = OffersCubit(transport);
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final count = await cubit.publishLots(
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const [
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ShareableLot(
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lotId: 'lot-1',
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varietyId: 'var-1',
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summary: 'Tomate',
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offerStatus: OfferStatus.shared,
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category: 'Solanaceae',
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),
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ShareableLot(
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lotId: 'lot-2',
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varietyId: 'var-2',
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summary: 'Judía',
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offerStatus: OfferStatus.exchange,
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),
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],
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authorPubkeyHex: 'ab' * 32,
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areaGeohash: 'sp3e9',
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);
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expect(count, 2);
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expect(cubit.state.publishing, isFalse);
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await cubit.discover('sp3');
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await pumpEventQueue();
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expect(cubit.state.offers, hasLength(2));
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await cubit.close();
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});
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test('publishLots carries the lot asking price on sale offers', () async {
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final transport = FakeOfferTransport();
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final cubit = OffersCubit(transport);
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await cubit.publishLots(
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const [
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ShareableLot(
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lotId: 'lot-sale',
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varietyId: 'var-1',
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summary: 'Tomate',
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offerStatus: OfferStatus.sell,
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priceAmount: 3.5,
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priceCurrency: 'Ğ1',
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),
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// "To be agreed": sale without a figure publishes without a price.
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ShareableLot(
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lotId: 'lot-negotiable',
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varietyId: 'var-2',
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summary: 'Judía',
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offerStatus: OfferStatus.sell,
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),
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],
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authorPubkeyHex: 'ab' * 32,
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areaGeohash: 'sp3e9',
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);
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await cubit.discover('sp3');
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await pumpEventQueue();
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final sale = cubit.state.offers.singleWhere((o) => o.id == 'lot-sale');
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expect(sale.type, OfferType.sale);
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expect(sale.priceAmount, 3.5);
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expect(sale.priceCurrency, 'Ğ1');
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final negotiable =
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cubit.state.offers.singleWhere((o) => o.id == 'lot-negotiable');
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expect(negotiable.priceAmount, isNull);
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await cubit.close();
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});
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test('publishLots embeds an inline thumbnail data-URI on the offer',
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() async {
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final transport = FakeOfferTransport();
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var thumbnailed = 0;
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final cubit = OffersCubit(
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transport,
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coverPhoto: (id) async => Uint8List.fromList([1, 2, 3]),
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thumbnail: (bytes) {
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thumbnailed++;
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return 'data:image/jpeg;base64,AAAA';
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},
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);
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await cubit.publishLots(
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const [
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ShareableLot(
|
|
lotId: 'lot-1',
|
|
varietyId: 'var-1',
|
|
summary: 'Tomate',
|
|
offerStatus: OfferStatus.shared,
|
|
),
|
|
],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
);
|
|
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
expect(thumbnailed, 1);
|
|
expect(cubit.state.offers.single.imageUrl, 'data:image/jpeg;base64,AAAA');
|
|
await cubit.close();
|
|
});
|
|
|
|
test('publishLots still publishes (without image) when thumbnailing fails',
|
|
() async {
|
|
final transport = FakeOfferTransport();
|
|
final cubit = OffersCubit(
|
|
transport,
|
|
coverPhoto: (id) async => Uint8List.fromList([1, 2, 3]),
|
|
thumbnail: (bytes) => throw Exception('boom'),
|
|
);
|
|
final count = await cubit.publishLots(
|
|
const [
|
|
ShareableLot(
|
|
lotId: 'lot-1',
|
|
varietyId: 'var-1',
|
|
summary: 'Tomate',
|
|
offerStatus: OfferStatus.shared,
|
|
),
|
|
],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
);
|
|
|
|
expect(count, 1); // the offer still went out
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
expect(cubit.state.offers.single.imageUrl, isNull);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('publishLots without a thumbnailer publishes no image', () async {
|
|
final transport = FakeOfferTransport();
|
|
final cubit = OffersCubit(transport); // no thumbnail, no coverPhoto
|
|
await cubit.publishLots(
|
|
const [
|
|
ShareableLot(
|
|
lotId: 'lot-1',
|
|
varietyId: 'var-1',
|
|
summary: 'Tomate',
|
|
offerStatus: OfferStatus.shared,
|
|
),
|
|
],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
);
|
|
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
expect(cubit.state.offers.single.imageUrl, isNull);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('publishLots is a no-op offline or with no area', () async {
|
|
final offline = OffersCubit(null);
|
|
expect(
|
|
await offline.publishLots(
|
|
const [
|
|
ShareableLot(
|
|
lotId: 'x',
|
|
varietyId: 'vx',
|
|
summary: 'x',
|
|
offerStatus: OfferStatus.shared,
|
|
),
|
|
],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
),
|
|
0,
|
|
);
|
|
await offline.close();
|
|
|
|
final noArea = OffersCubit(FakeOfferTransport());
|
|
expect(
|
|
await noArea.publishLots(
|
|
const [
|
|
ShareableLot(
|
|
lotId: 'x',
|
|
varietyId: 'vx',
|
|
summary: 'x',
|
|
offerStatus: OfferStatus.shared,
|
|
),
|
|
],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: '',
|
|
),
|
|
0,
|
|
);
|
|
await noArea.close();
|
|
});
|
|
|
|
test('flushOutbox publishes queued lots, then clears them', () async {
|
|
final outbox = OfferOutbox(InMemorySecretStore());
|
|
await outbox.enqueue(['lot-1', 'lot-2']);
|
|
final cubit = OffersCubit(FakeOfferTransport());
|
|
final count = await flushOutbox(
|
|
outbox: outbox,
|
|
cubit: cubit,
|
|
shareableLots: const [
|
|
ShareableLot(
|
|
lotId: 'lot-1',
|
|
varietyId: 'var-1',
|
|
summary: 'Tomate',
|
|
offerStatus: OfferStatus.shared),
|
|
ShareableLot(
|
|
lotId: 'lot-2',
|
|
varietyId: 'var-2',
|
|
summary: 'Judía',
|
|
offerStatus: OfferStatus.exchange),
|
|
ShareableLot(
|
|
lotId: 'lot-3',
|
|
varietyId: 'var-3',
|
|
summary: 'Otro',
|
|
offerStatus: OfferStatus.shared),
|
|
],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
);
|
|
expect(count, 2);
|
|
expect(await outbox.pending(), isEmpty);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('flushOutbox offline keeps the queue for later', () async {
|
|
final outbox = OfferOutbox(InMemorySecretStore());
|
|
await outbox.enqueue(['lot-1']);
|
|
final cubit = OffersCubit(null); // offline
|
|
final count = await flushOutbox(
|
|
outbox: outbox,
|
|
cubit: cubit,
|
|
shareableLots: const [],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
);
|
|
expect(count, 0);
|
|
expect(await outbox.pending(), {'lot-1'});
|
|
await cubit.close();
|
|
});
|
|
|
|
test('flushOutbox drops queued lots that no longer exist', () async {
|
|
final outbox = OfferOutbox(InMemorySecretStore());
|
|
await outbox.enqueue(['gone']);
|
|
final cubit = OffersCubit(FakeOfferTransport());
|
|
final count = await flushOutbox(
|
|
outbox: outbox,
|
|
cubit: cubit,
|
|
shareableLots: const [],
|
|
authorPubkeyHex: 'ab' * 32,
|
|
areaGeohash: 'sp3e9',
|
|
);
|
|
expect(count, 0);
|
|
expect(await outbox.pending(), isEmpty);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('offline (no transport): degrades gracefully, never throws', () async {
|
|
final cubit = OffersCubit(null);
|
|
expect(cubit.isOnline, isFalse);
|
|
await cubit.discover('sp3');
|
|
expect(cubit.state.error, 'offline');
|
|
final result = await cubit.publish(OfferMapper.fromSharedLot(
|
|
lotId: 'x',
|
|
authorPubkeyHex: 'ab' * 32,
|
|
summary: 'x',
|
|
sharing: OfferStatus.shared,
|
|
areaGeohash: 'sp3e9',
|
|
));
|
|
expect(result.accepted, isFalse);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('a resent offer is not duplicated in the list', () async {
|
|
// Regression: publishing an inventory lot showed up twice because the
|
|
// relay resends the addressable event; the cubit must dedup by author+id.
|
|
final transport = DuplicatingOfferTransport();
|
|
await transport.publish(OfferMapper.fromSharedLot(
|
|
lotId: 'lot-1',
|
|
authorPubkeyHex: 'ab' * 32,
|
|
summary: 'Tomate rosa',
|
|
sharing: OfferStatus.shared,
|
|
areaGeohash: 'sp3e9',
|
|
));
|
|
final cubit = OffersCubit(transport);
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
expect(cubit.state.offers, hasLength(1));
|
|
await cubit.close();
|
|
});
|
|
|
|
test('two authors reusing the same lot id are kept apart', () async {
|
|
// A non-deduping transport, so both authors' same-id offers reach discover.
|
|
final transport = DuplicatingOfferTransport();
|
|
for (final author in ['ab' * 32, 'cd' * 32]) {
|
|
await transport.publish(Offer(
|
|
id: 'lot-1', // same d-tag, different author
|
|
authorPubkeyHex: author,
|
|
summary: 'Tomate',
|
|
type: OfferType.gift,
|
|
approxGeohash: 'sp3e9',
|
|
));
|
|
}
|
|
final cubit = OffersCubit(transport);
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
expect(cubit.state.offers, hasLength(2));
|
|
await cubit.close();
|
|
});
|
|
});
|
|
|
|
group('OffersCubit filters', () {
|
|
Offer offer(String id, OfferType type,
|
|
{String? category, bool organic = false}) =>
|
|
Offer(
|
|
id: id,
|
|
authorPubkeyHex: 'ab' * 32,
|
|
summary: id,
|
|
type: type,
|
|
category: category,
|
|
approxGeohash: 'sp3e9',
|
|
isOrganic: organic,
|
|
);
|
|
|
|
Future<OffersCubit> seeded(List<Offer> offers) async {
|
|
final transport = FakeOfferTransport();
|
|
for (final o in offers) {
|
|
await transport.publish(o);
|
|
}
|
|
final cubit = OffersCubit(transport);
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
return cubit;
|
|
}
|
|
|
|
test('type, category and eco chips narrow the list (ANDed with search)',
|
|
() async {
|
|
final cubit = await seeded([
|
|
offer('tomate-eco', OfferType.gift, category: 'Solanaceae', organic: true),
|
|
offer('tomate-sale', OfferType.sale, category: 'Solanaceae'),
|
|
offer('judia-eco', OfferType.gift, category: 'Fabaceae', organic: true),
|
|
]);
|
|
|
|
cubit.toggleType(OfferType.gift);
|
|
expect(cubit.state.visibleOffers.map((o) => o.id),
|
|
containsAll(['tomate-eco', 'judia-eco']));
|
|
expect(cubit.state.visibleOffers, hasLength(2));
|
|
|
|
cubit.toggleCategory('Solanaceae');
|
|
expect(cubit.state.visibleOffers.single.id, 'tomate-eco');
|
|
|
|
cubit.toggleOrganicOnly();
|
|
expect(cubit.state.visibleOffers.single.id, 'tomate-eco');
|
|
|
|
cubit.clearFilters();
|
|
expect(cubit.state.visibleOffers, hasLength(3));
|
|
expect(cubit.state.hasActiveFilter, isFalse);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('exposes categories and hasOrganic from the discovered offers',
|
|
() async {
|
|
final cubit = await seeded([
|
|
offer('a', OfferType.gift, category: 'Solanaceae', organic: true),
|
|
offer('b', OfferType.gift, category: 'Fabaceae'),
|
|
offer('c', OfferType.gift),
|
|
]);
|
|
expect(cubit.state.categories, ['Fabaceae', 'Solanaceae']); // sorted
|
|
expect(cubit.state.hasOrganic, isTrue);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('chip filters survive a refresh (re-discovery)', () async {
|
|
final cubit = await seeded([
|
|
offer('gift', OfferType.gift),
|
|
offer('sale', OfferType.sale),
|
|
]);
|
|
cubit.toggleType(OfferType.gift);
|
|
await cubit.discover('sp3'); // pull-to-refresh
|
|
await pumpEventQueue();
|
|
expect(cubit.state.typeFilter, {OfferType.gift});
|
|
expect(cubit.state.visibleOffers.single.id, 'gift');
|
|
await cubit.close();
|
|
});
|
|
});
|
|
|
|
group('OffersCubit pagination', () {
|
|
test('discover loads the first page and exposes a next-page cursor',
|
|
() async {
|
|
final cubit = OffersCubit(PaginatingOfferTransport(250));
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
// One page (default limit 100) — not the whole 250 — is kept in memory.
|
|
expect(cubit.state.offers, hasLength(100));
|
|
expect(cubit.state.canLoadMore, isTrue);
|
|
expect(cubit.state.searching, isFalse);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('loadNextPage accumulates older offers until the source is exhausted',
|
|
() async {
|
|
final cubit = OffersCubit(PaginatingOfferTransport(250));
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
|
|
await cubit.loadNextPage();
|
|
expect(cubit.state.offers, hasLength(200));
|
|
expect(cubit.state.canLoadMore, isTrue);
|
|
|
|
await cubit.loadNextPage();
|
|
// Only 250 exist: the third page is short, so there is nothing older.
|
|
expect(cubit.state.offers, hasLength(250));
|
|
expect(cubit.state.canLoadMore, isFalse);
|
|
|
|
// Paging past the end is a harmless no-op.
|
|
await cubit.loadNextPage();
|
|
expect(cubit.state.offers, hasLength(250));
|
|
await cubit.close();
|
|
});
|
|
|
|
test('the in-memory list is capped and paging stops at the cap', () async {
|
|
final cubit = OffersCubit(PaginatingOfferTransport(600));
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
// Keep paging until the cubit says there is no more.
|
|
var guard = 0;
|
|
while (cubit.state.canLoadMore && guard++ < 20) {
|
|
await cubit.loadNextPage();
|
|
}
|
|
expect(cubit.state.offers, hasLength(OffersCubit.maxOffersKept));
|
|
expect(cubit.state.canLoadMore, isFalse);
|
|
await cubit.close();
|
|
});
|
|
|
|
test('offers are de-duplicated across pages by (author, id)', () async {
|
|
// Two pages that overlap on the boundary id must not double it.
|
|
final cubit = OffersCubit(PaginatingOfferTransport(150));
|
|
await cubit.discover('sp3');
|
|
await pumpEventQueue();
|
|
await cubit.loadNextPage();
|
|
final ids = cubit.state.offers.map((o) => o.id).toList();
|
|
expect(ids.toSet(), hasLength(ids.length)); // no duplicates
|
|
expect(cubit.state.offers, hasLength(150));
|
|
await cubit.close();
|
|
});
|
|
});
|
|
}
|