def test_constructor(self):
"Constructor with valid and invalid configuration"
with self.assertRaises(TypeError):
b = Bus('0')
with self.assertRaises(TypeError):
b = Bus(0)
with self.assertRaises(TypeError):
b = Bus(1, -1)
with self.assertRaises(TypeError):
b = Bus(1, 2)
with self.assertRaises(TypeError):
b = Bus(1, '0')
b = Bus(8, 255)
self.assertTrue(b.read() == 255)
self.assertTrue(b.size() == 8)
def test_size(self):
"Valid bus size presented"
b = Bus(8, 255)
self.assertTrue(b.size() == 8)