@Test
public void testMinusWithUnlimitedExtraHours() {
Capacity c = Capacity.create(hours(8)).overAssignableWithoutLimit();
assertThat(c.minus(hours(6)).getStandardEffort(), equalTo(hours(2)));
assertTrue(c.minus(hours(6)).isOverAssignableWithoutLimit());
assertThat(c.minus(hours(8)).getStandardEffort(), equalTo(hours(0)));
assertTrue(c.minus(hours(8)).isOverAssignableWithoutLimit());
assertThat(c.minus(hours(10)).getStandardEffort(), equalTo(hours(0)));
assertTrue(c.minus(hours(10)).isOverAssignableWithoutLimit());