    @Test
    public void shouldSkipValidationOfPropertiesWithDefaultType()
    {

        Properties properties = new Properties();
        properties.put("property", "false");

        MappedConfiguration<String, Object> configuration = Mockito.mock(MappedConfiguration.class);

        ConfigHelper configHelper = new ConfigHelper(properties);
        configHelper.add("property", configuration);

        Mockito.inOrder(configuration)
                .verify(configuration, Mockito.calls(1))
                .add("property", "false");

        PropertyTypeValidator validator = new PropertyTypeValidator(null, null);

        validator.validate(configHelper);
    }