*/
@Test
public void testHashCode()
{
final Unit unit1 = new Unit(2, "meters");
final Unit unit2 = new Unit(2, "meters");
final Unit unit3 = new Unit(3, "meters");
final Unit unit4 = new Unit(2, "kilometers");
assertThat(unit1.hashCode(), is(unit2.hashCode()));
assertThat(unit1.hashCode(), not(unit3.hashCode()));
assertThat(unit1.hashCode(), not(unit4.hashCode()));
}