def test_forward(self):
result = transform(1, 0, 0, 0)
expected = (1, 1)
self.assertEqual(result, expected)
def test_right(self):
result = transform(0, 0, 0, 1)
expected = (0, 0)
self.assertEqual(result, expected)
def test_idle(self):
result = transform(0, 0, 0, 0)
expected = (0, 0)
self.assertEqual(result, expected)
def test_reverse_left(self):
result = transform(0, 1, 1, 0)
expected = (0, -1)
self.assertEqual(result, expected)