@Test
public void testValidationWithEmptyNotRequiredDateShouldNotThrowException()
	throws DDMFormFieldValueValidationException {

	DDMForm ddmForm = DDMFormTestUtil.createDDMForm();
	DDMFormField ddmFormField = DDMFormTestUtil.createDDMFormField(
		"Date", "Date", "date", "string", false, false, false);
	ddmForm.addDDMFormField(ddmFormField);
	DDMFormFieldValue ddmFormFieldValue =
		DDMFormValuesTestUtil.createDDMFormFieldValue(
			"Date", new UnlocalizedValue(""));
	_dateDDMFormFieldValueValidator.validate(
		ddmFormField, ddmFormFieldValue.getValue());
}