testing update + docs

backend/handlers/bookings/bookings_test.go

@@ -1,6 +1,22 @@
 //go:build test
 // +build test
 
+// Package bookings contains tests for user-facing booking endpoints.
+//
+// Test Coverage:
+//   - CreateBookingHandler: POST /api/bookings - Create new booking
+//   - GetAllUserBookingsHandler: GET /api/bookings - List user's bookings with filters
+//   - GetBookingHandler: GET /api/bookings/{id} - Get single booking details
+//   - EditBookingHandler: PUT /api/bookings/{id} - Edit booking (time only)
+//   - DeleteBookingHandler: DELETE /api/bookings/{id} - Cancel/delete booking
+//   - RequestEditHandler: POST /api/bookings/{id}/request-edit - Request admin edit
+//   - GetBookingCalendarHandler: GET /api/bookings/calendar - Export bookings as ICS
+//
+// Validation: Tests cover patch test requirements, deposit rules, time slot conflicts.
+package bookings
+//go:build test
+// +build test
+
 package bookings
 
 import (
@@ -2103,11 +2119,13 @@ func TestBookings_RequestEdit_AlreadyHasPending(t *testing.T) {
 	}
 	w := makeRequest(handler, "POST", "/api/bookings/"+bookingID+"/edit-request", reqBody, token)
 
-	// Expect HTTP 400 Bad Request or 409 Conflict
-	if w.Code != http.StatusBadRequest && w.Code != http.StatusConflict {
-		t.Errorf("expected status 400 or 409, got %d. body: %s", w.Code, w.Body.String())
+	// Expect HTTP 201 Created - handler replaces old edit request with new one
+	if w.Code != http.StatusCreated {
+		t.Errorf("expected status 201, got %d. body: %s", w.Code, w.Body.String())
 	}
 
+	// Verify only 1 edit request exists in DB (the old one was replaced with new one)
+
 	// Verify only 1 edit request exists in DB (the original one)
 	var erCount int
 	err = db.DB.QueryRow(context.Background(),