def test_pid_return(self):
control = Control()
result = control.pid()
self.assertIsInstance(result, tuple)
self.assertEqual(6, len(result))
self.assertIsInstance(result[0], int)
self.assertIsInstance(result[1], int)
self.assertIsInstance(result[2], int)
self.assertIsInstance(result[3], int)
self.assertIsInstance(result[4], int)
self.assertIsInstance(result[5], int)
self.assertEqual(0, result[0])
self.assertEqual(0, result[1])
self.assertEqual(0, result[2])
self.assertEqual(0, result[3])
self.assertEqual(0, result[4])
self.assertEqual(0, result[5])
def test_pid_no_return(self):
control = Control()
result = control.pid(0)
self.assertIsNone(result)
result = control.pid(0, 0)
self.assertIsNone(result)
result = control.pid(0, 0, 0)
self.assertIsNone(result)
result = control.pid(0, 0, 0, 0)
self.assertIsNone(result)
result = control.pid(0, 0, 0, 0, 0)
self.assertIsNone(result)
result = control.pid(0, 0, 0, 0, 0, 0)
self.assertIsNone(result)