def test_capacitor(self):
ns.circ(['va a 0 ac 1 dc 0', 'c a 0 1'])
ns.ac('lin', 1, 1, 1)
self.assertVectors({'frequency': [1],
'a': [1],
'va#branch': [-2j * pi],
})
def test_inductor(self):
# operating point does not converge if I use a voltage source here
ns.circ(['ia a 0 ac 1 dc 0', 'l1 a 0 1'])
ns.ac('lin', 1, 1, 1)
self.assertVectors({'frequency': [1],
'a': [-2j * pi],
'l1#branch': [-1],
})
def test_model_parameters(self):
ns.circ(['r n 0 rmodel', '.model rmodel R res = 3'])
self.assertEqual(ns.model_parameters(model='rmodel')['r'], 3)
self.assertEqual(ns.model_parameters(device='r')['r'], 3)
# Must specify device or model, and not both
self.assertRaises(ValueError, ns.model_parameters)
self.assertRaises(ValueError, ns.model_parameters, model='rmodel',
device='r')
def test_ac(self):
ns.circ(['va a 0 ac 1 dc 0', 'c a 0 1'])
results = ns.ac('lin', 1, 1, 1)
self.assertEqual(results.keys(), {'a', 'va#branch', 'frequency'})
# Invalid mode
self.assertRaises(ValueError, ns.ac, 'foo', 1, 2, 3)
# fstart > fstop
self.assertRaises(ValueError, ns.ac, 'lin', 2, 3, 2)
def test_plots(self):
ns.circ('va a 0 dc 1')
for ii in range(3):
ns.operating_point()
self.assertEqual(ns.plots(),
['op3', 'op2', 'op1', 'const'])
def test_resistor(self):
ns.circ(['va a 0 dc 1', 'r a 0 2'])
ns.operating_point()
self.assertEqual(ns.vectors(),
{'a': [1],
'va#branch': [-0.5]})
def test_vsource(self):
ns.circ('va a 0 dc 1')
ns.operating_point()
self.assertEqual(ns.vectors(),
{'a': [1],
'va#branch': [0]})
def setUp(self):
ns.circ('va a 0 dc 0')
def test_altermod(self):
ns.circ(['r n 0 rmodel', '.model rmodel R res = 3'])
ns.alter_model('r', res=4)
ns.operating_point()
self.assertEqual(ns.vector('@r[resistance]'), 4)
def test_alter(self):
ns.circ('r n 0 1')
ns.alter('r', resistance=2, temp=3)
ns.operating_point() # Necessary for resistance to be calculated
self.assertEqual(ns.vector('@r[resistance]'), 2)
self.assertEqual(ns.vector('@r[temp]'), 3)
