anchor.diff:          }
           await _checkAll(db, expectedExport, _check);
         });
  +
         test('three_stores', () async {
           await _setupDeleteDb();
   
  
positive.code:             _check);
        });
  
        // safari does not support multiple stores - fakes
        test('two_store_two_records', () async {
          await _setupDeleteDb();
  
negative.code: library idb_shim.utils_test;
  
  import 'dart:typed_data';
  
  import 'package:collection/collection.dart';
  import 'package:idb_shim/idb_client.dart';
  