def test_intersection(self):
interval_list = [Interval(1, 10), Interval(5, 7), Interval(7)]
assert Interval.intersection(*interval_list) == Interval(7)
interval_list.append(Interval(11))
assert Interval.intersection(*interval_list) is None
with pytest.raises(AttributeError):
Interval.intersection()
def test_intersection(self):
interval_list = [Interval(1, 10), Interval(5, 7), Interval(7)]
self.assertEqual(Interval(7), Interval.intersection(*interval_list))
interval_list.append(Interval(11))
self.assertEqual(None, Interval.intersection(*interval_list))
with self.assertRaises(AttributeError):
Interval.intersection()
