Verbessere die Handhabung von Datumsbereichen in der Worklog-Abfrage und füge Fehlerbehandlung für Statistikabfragen in den Komponenten hinzu.

backend/test/time-displays.test.js

@@ -101,3 +101,74 @@ test('Status: keine Fehlzeit für kranken Montag, Pausen angerechnet, laufende W
   assert.equal(stats.adjustedEndTodayWeek, '16:30');
   assert.equal(stats.totalOvertime, '+5:49');
 });
+
+// Repository nicht ersetzen: Genau dort muss die Datumsabfrage funktionieren.
+const { Op } = require('sequelize');
+const weekController = require('../src/controllers/WeekOverviewController');
+const timeController = require('../src/controllers/TimeEntryController');
+const actualFindByDateRange = repository.findByDateRange;
+
+function responseRecorder() {
+  return {
+    statusCode: 200,
+    status(code) { this.statusCode = code; return this; },
+    json(body) { this.body = body; return this; }
+  };
+}
+
+function setupRepositoryFlow(t) {
+  setupWeek(t);
+  mock(t, repository, 'findByDateRange', actualFindByDateRange);
+  mock(t, database, 'getModels', () => ({
+    Worklog: {
+      findAll: async options => {
+        assert.equal(options.where.user_id, 1);
+        const range = options.where.tstamp[Op.between];
+        assert.equal(range[0].getTime(), new Date('2026-10-26T00:00:00').getTime());
+        assert.equal(range[1].getTime(), new Date('2026-11-01T23:59:59.999').getTime());
+        return [{ id: 1, state: 'start work', tstamp: '2026-10-27 08:00:00' }];
+      }
+    },
+    User: { findByPk: async () => ({ daily_hours: 8 }) },
+    Timewish: { findOne: async () => null, findAll: async () => [] }
+  }));
+  mock(t, service, '_calculateTotalOvertime', async () => ({ minutes: 349, formatted: '+5:49' }));
+}
+
+test('Wochen-API durchläuft echte Repository-Abfrage und liefert aktuelle Woche', async t => {
+  setupRepositoryFlow(t);
+  const res = responseRecorder();
+  await weekController.getWeekOverview({ user: { userId: 1 }, query: { weekOffset: '0' } }, res);
+  assert.equal(res.statusCode, 200);
+  assert.equal(res.body.data.weekStart, '2026-10-26');
+  assert.equal(res.body.data.weekEnd, '2026-11-01');
+  assert.equal(res.body.data.days[0].sick.hours, 8);
+});
+
+test('Statistik-API durchläuft echte Repository-Abfrage und liefert Werte statt Fehlerobjekt', async t => {
+  setupRepositoryFlow(t);
+  const res = responseRecorder();
+  await timeController.getStats({ user: { userId: 1 } }, res);
+  assert.equal(res.statusCode, 200);
+  assert.equal(res.body.overtime, '+0:00');
+  assert.equal(res.body.nonWorkingHours, '8:00');
+  assert.match(res.body.open, /^\d{2}:\d{2}:\d{2}$/);
+});
+
+test('Repository: Arbeitszeitpaare verwenden den vollständigen Datumsbereich', async t => {
+  const start = new Date('2026-10-26T00:00:00');
+  const end = new Date('2026-11-01T23:59:59.999');
+  let queried = false;
+  mock(t, database, 'getModels', () => ({ Worklog: { findAll: async options => {
+    queried = true;
+    assert.deepEqual(options.where.tstamp[Op.between], [start, end]);
+    return [
+      { id: 1, state: 'start work', tstamp: '2026-10-27 08:00:00' },
+      { id: 2, state: 'stop work', tstamp: '2026-10-27 16:00:00', relatedTo_id: 1 }
+    ];
+  } } }));
+  const pairs = await repository.findPairsByUserInDateRange(1, start, end);
+  assert.equal(queried, true);
+  assert.equal(pairs.length, 1);
+  assert.equal(pairs[0].end_id, 2);
+});