def test_can_be_linked_to_next_year(self):
y2012 = Year(2012)
y2013 = Year(2013)
y2012.set_next_year(y2013)
self.assertEquals(y2012.get_next_year(), y2013)
def test_can_be_linked_to_next_year(self):
y2012 = Year(2012)
y2013 = Year(2013)
y2012.set_next_year(y2013)
self.assertEquals(y2012.get_next_year(), y2013)
