source: class ValidatorSetTest  {
  
      private EditText mockEditText_2;
      private EditText mockEditText_3;
      private ValidatorSet validatorSet;
  
      @Test public void addOneValidator() {
  
target:         validatorSet.addValidator(new RequiredValidator(mockEditText, errorMessage, true));
          assertEquals(validatorSet.map.size(), 1);
      }
  
  }