def test_internal_degree():
net = InteractingNetworks.SmallDirectedTestNetwork()
res = net.internal_degree([0, 3, 5])
exp = np.array([2, 1, 1])
assert (res == exp).all()
res = net.internal_degree([1, 2, 4])
exp = np.array([2, 2, 2])
assert (res == exp).all()
def test_internal_outdegree():
net = InteractingNetworks.SmallDirectedTestNetwork()
res = net.internal_outdegree([0, 1, 3])
exp = np.array([2, 0, 1])
assert (res == exp).all()
def test_cross_outdegree():
net = InteractingNetworks.SmallDirectedTestNetwork()
res = net.cross_outdegree([1, 2], [0, 3, 4])
exp = np.array([1, 0])
assert (res == exp).all()