@Test
public void nullValueTest() {

    IValueEq<PhysicalData> eq = new PhysicalDataValueEq();
    PhysicalData a = new ImmutablePhysicalData(null, 10F, 10F, 10D, 10F, null, 10D, 10F, 10F, 10F);
    PhysicalData b = new ImmutablePhysicalData(null, 10F, 10F, 10D, 10F, null, 10D, 10F, 10F, null);
    assertFalse(eq.equal(a, b));
}