def test_causal1(self):
a = Circuit()
a.add('V1 1 0 {4 + 2 * u(t)}; down')
a.add('R1 1 2 2; right=2')
a.add('L1 2 3 2; down')
a.add('W 0 3; right')
self.assertEqual(a.sub['s'].is_causal, True, "Causal incorrect")
self.assertEqual2(a.L1.v, 2 * exp(-t) * u(t), "L current incorrect")
def test_causal1(self):
a = Circuit()
a.add('V1 1 0 {4 + 2 * u(t)}; down')
a.add('R1 1 2 2; right=2')
a.add('L1 2 3 2; down')
a.add('W 0 3; right')
self.assertEqual(a.sub['s'].is_causal, True, "Causal incorrect")
self.assertEqual2(a.L1.v, 2 * exp(-t) * u(t), "L current incorrect")