def test_dist(self):
x = Interval(1, 4)
y = Interval(-1, 0)
z = Interval(0, 3)
assert Interval.dist(x, y) == 1
assert Interval.dist(y, x) == -1
assert Interval.dist(x, z) == 0
assert Interval.dist(z, x) == 0
assert Interval.dist(y, z) == 0
assert Interval.dist(z, y) == 0
assert Interval.dist((1, 4), (10, 12)) == -6
def test_dist(self):
x = Interval(1, 4)
y = Interval(-1, 0)
z = Interval(0, 3)
self.assertEqual(1, Interval.dist(x, y))
self.assertEqual(-1, Interval.dist(y, x))
self.assertEqual(0, Interval.dist(x, z))
self.assertEqual(0, Interval.dist(z, x))
self.assertEqual(0, Interval.dist(y, z))
self.assertEqual(0, Interval.dist(z, y))
self.assertEqual(-6, Interval.dist((1, 4), (10, 12)))
