@Test
public void buildConstraintsString() {

    KiePMMLFieldOperatorValue kiePMMLFieldOperatorValue = getKiePMMLFieldOperatorValueWithName();
    String expected = "value < 35 surrogate value > 85";
    String retrieved = kiePMMLFieldOperatorValue.buildConstraintsString();
    assertEquals(expected, retrieved);
    kiePMMLFieldOperatorValue = getKiePMMLFieldOperatorValueWithoutName();
    expected = "value < 35 surrogate value > 85";
    retrieved = kiePMMLFieldOperatorValue.buildConstraintsString();
    assertEquals(expected, retrieved);
}