def test_backprop_partial_e_value(self):
nt = Network()
nt.y_hat, nt.Op = 5, 2
self.assertTrue((nt.partial_e() == -3))
def test_least_squares(self):
nt = Network()
nt.y_hat, nt.Op = 5, 2
self.assertTrue((nt.least_squares() == 4.5))