def testBackwardHalfMetre(self):
d = DriveSystem(2)
d.backward(0.5)
self.assertEqual(d.get_position(), (0, -0.5))
self.assertEqual(d.get_bearing(), 0)
def testBackwardTwoMetres(self):
d = DriveSystem(2)
d.backward(2)
self.assertEqual(d.get_position(), (0, -2))
self.assertEqual(d.get_bearing(), 0)
def testBackwardOneMetre(self):
d = DriveSystem(2)
d.backward(1)
self.assertEqual(d.get_position(), (0, -1))
self.assertEqual(d.get_bearing(), 0)
