def test_unvisited_closure_overlapping_intersection(self):
unvisited = fierce.unvisited_closure()
unvisited(set([1, 2, 3]))
result = unvisited(set([2, 3, 4]))
expected = set([4])
self.assertEqual(expected, result)
def test_unvisited_closure_empty(self):
unvisited = fierce.unvisited_closure()
ips = set()
result = unvisited(ips)
expected = set()
self.assertEqual(expected, result)
def test_unvisited_closure_empty_intersection(self):
unvisited = fierce.unvisited_closure()
unvisited(set([1, 2, 3]))
result = unvisited(set([4, 5, 6]))
expected = set([4, 5, 6])
self.assertEqual(expected, result)
def test_unvisited_closure_empty(self):
unvisited = fierce.unvisited_closure()
ips = set()
result = unvisited(ips)
expected = set()
assert expected == result