anchor.diff:  Future testAggregateToStream() {
     Db db = new Db('${DefaultUri}mongo_dart-test');
     List<Map> result = [];
  -  bool skipTest;
  +  bool skipTest = false;
     return db.open().then((c){
       return db.getBuildInfo();
     }).then((v){
  
positive.code:     return db.close();
    });
  }
  Future testFindEach(){
    Db db = new Db('${DefaultUri}mongo_dart-test');
    int count = 0;
  
negative.code:     test('testSaveWithObjectId',testSaveWithObjectId);
      test('testInsertWithObjectId',testSaveWithObjectId);
      test('testSkip',testSkip);
      test('testDateTime',testDateTime);
      test('testUpdateWithUpsert', testUpdateWithUpsert);
      test('testUpdateWithMultiUpdate', testUpdateWithMultiUpdate);
      test('testFindWithFieldsClause',testFindWithFieldsClause);
  