diff --git a/server/tests/integration/trips.test.ts b/server/tests/integration/trips.test.ts
index 6c619d7..b862b23 100644
--- a/server/tests/integration/trips.test.ts
+++ b/server/tests/integration/trips.test.ts
@@ -89,7 +89,7 @@ describe('Create trip', () => {
     expect(days[4].date).toBe('2026-06-05');
   });
 
-  it('TRIP-002 — POST /api/trips without dates returns 201 and no date-specific days', async () => {
+  it('TRIP-002 — POST /api/trips without dates returns 201 and defaults to a 7-day window', async () => {
     const { user } = createUser(testDb);
 
     const res = await request(app)
@@ -99,12 +99,12 @@ describe('Create trip', () => {
 
     expect(res.status).toBe(201);
     expect(res.body.trip).toBeDefined();
-    expect(res.body.trip.start_date).toBeNull();
-    expect(res.body.trip.end_date).toBeNull();
+    expect(res.body.trip.start_date).not.toBeNull();
+    expect(res.body.trip.end_date).not.toBeNull();
 
-    // Days with explicit dates should not be present
+    // Should have 8 days (start + 7 day window)
     const daysWithDate = testDb.prepare('SELECT * FROM days WHERE trip_id = ? AND date IS NOT NULL').all(res.body.trip.id) as any[];
-    expect(daysWithDate).toHaveLength(0);
+    expect(daysWithDate).toHaveLength(8);
   });
 
   it('TRIP-001 — POST /api/trips requires a title, returns 400 without one', async () => {