def get_random_dag(self,n,p):
dag = DAG()
for i in range(n):
dag.add_element(i)
arr = [ i for i in range(n) ]
random.shuffle(arr)
for i in range(n):
for j in range(i+1,n):
if random.random() < p:
dag.put_below(arr[i], arr[j])
return dag
def get_random_dag(self, n, p):
dag = DAG()
for i in range(n):
dag.add_element(i)
arr = [i for i in range(n)]
random.shuffle(arr)
for i in range(n):
for j in range(i + 1, n):
if random.random() < p:
dag.put_below(arr[i], arr[j])
return dag
def test_reachable_above(self):
dag = DAG()
for i in range(5):
dag.add_element(i)
self.assertEqual([i], sorted(dag.get_reachable_above(i)))
for i in range(5):
self.assertEqual([i], sorted(dag.get_reachable_above(i)))
dag.put_below(3, 4)
self.assertEqual([3], sorted(dag.get_reachable_above(3)))
self.assertEqual([3,4], sorted(dag.get_reachable_above(4)))
self.assertEqual([1], sorted(dag.get_reachable_above(1)))
dag.put_below(1, 0)
dag.put_below(2, 1)
self.assertEqual([2], sorted(dag.get_reachable_above(2)))
self.assertEqual([1,2], sorted(dag.get_reachable_above(1)))
self.assertEqual([0,1,2], sorted(dag.get_reachable_above(0)))
dag.put_below(2, 0)
self.assertEqual([2], sorted(dag.get_reachable_above(2)))
self.assertEqual([1,2], sorted(dag.get_reachable_above(1)))
self.assertEqual([0,1,2], sorted(dag.get_reachable_above(0)))
dag.put_below(4, 1)
self.assertEqual([2], sorted(dag.get_reachable_above(2)))
self.assertEqual([1,2,3,4], sorted(dag.get_reachable_above(1)))
self.assertEqual([0,1,2,3,4], sorted(dag.get_reachable_above(0)))
dag.put_below(4, 2)
self.assertEqual([0,1,2,3,4], sorted(dag.get_reachable_above(0)))
self.assertEqual([1,2,3,4], sorted(dag.get_reachable_above(1)))
self.assertEqual([2,3,4], sorted(dag.get_reachable_above(2)))
self.assertEqual([3], sorted(dag.get_reachable_above(3)))
self.assertEqual([3,4], sorted(dag.get_reachable_above(4)))
def test_reachable_above(self):
dag = DAG()
for i in range(5):
dag.add_element(i)
self.assertEqual([i], sorted(dag.get_reachable_above(i)))
for i in range(5):
self.assertEqual([i], sorted(dag.get_reachable_above(i)))
dag.put_below(3, 4)
self.assertEqual([3], sorted(dag.get_reachable_above(3)))
self.assertEqual([3, 4], sorted(dag.get_reachable_above(4)))
self.assertEqual([1], sorted(dag.get_reachable_above(1)))
dag.put_below(1, 0)
dag.put_below(2, 1)
self.assertEqual([2], sorted(dag.get_reachable_above(2)))
self.assertEqual([1, 2], sorted(dag.get_reachable_above(1)))
self.assertEqual([0, 1, 2], sorted(dag.get_reachable_above(0)))
dag.put_below(2, 0)
self.assertEqual([2], sorted(dag.get_reachable_above(2)))
self.assertEqual([1, 2], sorted(dag.get_reachable_above(1)))
self.assertEqual([0, 1, 2], sorted(dag.get_reachable_above(0)))
dag.put_below(4, 1)
self.assertEqual([2], sorted(dag.get_reachable_above(2)))
self.assertEqual([1, 2, 3, 4], sorted(dag.get_reachable_above(1)))
self.assertEqual([0, 1, 2, 3, 4], sorted(dag.get_reachable_above(0)))
dag.put_below(4, 2)
self.assertEqual([0, 1, 2, 3, 4], sorted(dag.get_reachable_above(0)))
self.assertEqual([1, 2, 3, 4], sorted(dag.get_reachable_above(1)))
self.assertEqual([2, 3, 4], sorted(dag.get_reachable_above(2)))
self.assertEqual([3], sorted(dag.get_reachable_above(3)))
self.assertEqual([3, 4], sorted(dag.get_reachable_above(4)))