grapesjs/test/specs/test_utils.js

define(() => ({
  storageMock: function() {
    var db = {};
    return {
      id: 'testStorage',
      store: function(data){
        db = data;
      },
      load: function(keys){
        return db;
      },
      getDb: function(){
        return db;
      },
    };
  }
}));