refactor: lokale Nachrichtensuche als eigenes Modul (lib/features/search) + 5 Vertragstests
Verhaltensgleich aus search_modal.dart herausgeloest (gleiche Deckel 1500/60/500, gleiche Schleife; Medien-Filter jetzt Parameter). Tests laufen ueber die echte SDK-DB-Schicht mit synthetischen Daten (test/support/synthetic_matrix_data.dart). Co-Authored-By: Claude Opus 5.5 <[email protected]>
This commit is contained in:
Bernd Steckmeister
co-authored by
Claude Opus 5.5
Claude Opus 5.5
parent
b2413ef627
commit
d5ff7982a0
@@ -0,0 +1,200 @@
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import 'dart:math';
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import 'package:matrix/matrix.dart';
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import 'package:sqflite_common_ffi/sqflite_ffi.dart';
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/// Synthetische Matrix-Daten für Tests und `benchmark/` – komplett offline:
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/// kein Homeserver, keine echten Konten, keine Secrets.
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///
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/// Die Daten gehen über die ECHTE SDK-Datenbankschicht (`MatrixSdkDatabase`,
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/// `storeRoomUpdate`/`storeEventUpdate` in Sync-artigen Transaktionen) – also
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/// denselben Weg wie beim echten Sync. Dadurch messen/prüfen Tests und
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/// Benchmarks die Speicherstruktur, die die App wirklich auf der Platte hat.
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class SyntheticMatrixData {
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SyntheticMatrixData._();
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static const homeserverDomain = 'bench.invalid';
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static const _senders = 5;
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/// Wörter für die Nachrichtentexte (bewusst mit Umlauten – die Suche
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/// arbeitet mit `toLowerCase`).
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static const _words = [
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'hallo',
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'morgen',
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'treffen',
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'kaffee',
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'bahnhof',
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'urlaub',
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'foto',
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'danke',
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'später',
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'gleich',
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'abend',
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'essen',
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'kino',
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'wetter',
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'regen',
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'sonne',
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'arbeit',
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'pause',
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'auto',
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'zug',
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'buch',
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'musik',
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'spiel',
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'garten',
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'hund',
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'katze',
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'einkaufen',
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'termin',
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'grüße',
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'übermorgen',
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];
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static String roomId(int r) => '!room$r:$homeserverDomain';
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static String eventId(int r, int i) => '\$r${r}e$i';
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static String sender(int i) => '@user${i % _senders}:$homeserverDomain';
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/// Öffnet die SDK-Datenbank auf [db] und baut einen Offline-Client darauf.
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static Future<Client> openClient(
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Database db, {
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String name = 'PyramidBench',
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}) async {
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final sdkDb = await MatrixSdkDatabase.init('pyramid', database: db);
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return Client(name, database: sdkDb);
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}
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/// Schreibt [rooms] Räume mit je [eventsPerRoom] Nachrichten in die DB.
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///
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/// Wie beim echten Sync landen die Events in Transaktionen à [batchSize]
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/// (≈ eine Sync-Antwort) und in zeitlicher Reihenfolge (älteste zuerst).
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/// Jede 10. Nachricht ist ein Bild (`m.image`). Ist [needleEvery] gesetzt,
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/// enthält jede n-te Nachricht zusätzlich das Wort [needle] – so kennen
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/// Tests die exakte Trefferzahl der Suche.
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static Future<void> populate(
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Client client, {
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required int rooms,
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required int eventsPerRoom,
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int batchSize = 50,
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String needle = 'nadelwort',
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int? needleEvery,
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int seed = 42,
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}) async {
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final db = client.database;
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final rnd = Random(seed);
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final baseTs = DateTime.utc(2026, 1, 1).millisecondsSinceEpoch;
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for (var r = 0; r < rooms; r++) {
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final id = roomId(r);
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await db.transaction(() async {
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await db.storeRoomUpdate(
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id,
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JoinedRoomUpdate(
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summary: RoomSummary.fromJson({
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'm.joined_member_count': _senders,
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'm.invited_member_count': 0,
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}),
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),
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null,
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client,
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);
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for (final state in _roomState(r)) {
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await db.storeEventUpdate(id, state, EventUpdateType.state, client);
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}
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});
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for (var start = 0; start < eventsPerRoom; start += batchSize) {
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final end = min(start + batchSize, eventsPerRoom);
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await db.transaction(() async {
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for (var i = start; i < end; i++) {
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final hasNeedle = needleEvery != null && i % needleEvery == 0;
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await db.storeEventUpdate(
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id,
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_message(r, i, baseTs, rnd, hasNeedle ? needle : null),
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EventUpdateType.timeline,
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client,
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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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/// Lädt die Raumliste aus der DB in `client.rooms` – das, was beim
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/// App-Start `client.init()` macht, ohne Netzwerk/Login.
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static Future<List<Room>> loadRooms(Client client) async {
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final rooms = await client.database.getRoomList(client);
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client.rooms
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..clear()
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..addAll(rooms);
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return rooms;
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}
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static List<MatrixEvent> _roomState(int r) {
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final ts = DateTime.utc(2025, 12, 1).millisecondsSinceEpoch;
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MatrixEvent state(
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String type,
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String stateKey,
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Map<String, Object?> content,
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int n,
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) => MatrixEvent(
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type: type,
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eventId: '\$state${r}_$n',
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senderId: sender(0),
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originServerTs: DateTime.fromMillisecondsSinceEpoch(ts + n),
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stateKey: stateKey,
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content: content,
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roomId: roomId(r),
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);
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return [
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state(EventTypes.RoomCreate, '', {'creator': sender(0)}, 0),
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state(EventTypes.RoomName, '', {'name': 'Raum $r'}, 1),
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for (var u = 0; u < _senders; u++)
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state(EventTypes.RoomMember, sender(u), {
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'membership': 'join',
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'displayname': 'Nutzer $u',
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}, 2 + u),
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];
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}
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static MatrixEvent _message(
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int r,
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int i,
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int baseTs,
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Random rnd,
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String? needle,
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) {
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final isImage = i % 10 == 9;
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final Map<String, Object?> content;
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if (isImage) {
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content = {
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'msgtype': 'm.image',
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'body': 'IMG_${r}_$i.jpg',
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'url': 'mxc://$homeserverDomain/img$r$i',
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'info': {
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'w': 1920,
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'h': 1080,
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'mimetype': 'image/jpeg',
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'size': 250000,
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},
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};
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} else {
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final words = List.generate(
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4 + rnd.nextInt(20),
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(_) => _words[rnd.nextInt(_words.length)],
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);
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if (needle != null) words.insert(rnd.nextInt(words.length), needle);
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content = {'msgtype': 'm.text', 'body': words.join(' ')};
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}
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return MatrixEvent(
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type: EventTypes.Message,
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eventId: eventId(r, i),
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senderId: sender(i),
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originServerTs: DateTime.fromMillisecondsSinceEpoch(
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baseTs + r * 1000 + i * 60000,
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),
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content: content,
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roomId: roomId(r),
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);
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}
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}
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