def testDiff():
o3 = Odometer(3)
o4 = Odometer(3)
o3.next_reading(4)
o3.prev_reading(6)
assert o3.diff(o4) == 2
assert o4.diff(o3) == 82
def test_diff(self):
odo = Odometer(2)
self.o2.next_reading(3)
odo.next_reading(5)
self.assertEqual(self.o2.diff(odo), 2)
self.assertEqual(odo.diff(self.o2), 34)
class TestOdometer(unittest.TestCase):
def setUp(self):
self.o1 = Odometer(1)
self.o2 = Odometer(2)
def test_ascending(self):
self.assertEqual(Odometer.is_ascending(11), False)
self.assertEqual(Odometer.is_ascending(4689), True)
self.assertEqual(Odometer.is_ascending(2), True)
self.assertEqual(Odometer.is_ascending(123456789), True)
def test_length(self):
length = self.o1.LENGTH
self.assertEqual(length, 0)
length = self.o2.LENGTH
self.assertEqual(length, 36)
def test_next_reading(self):
#getting back the starting pos after adding length
length = self.o2.LENGTH
self.o2.next_reading(length)
self.assertEqual(self.o2.readings[self.o2.position], 12)
#adding 1 to the above obtained reading
self.o2.next_reading(1)
self.assertEqual(self.o2.readings[self.o2.position], 13)
#adding 7 to the above reading
self.o2.next_reading(7)
self.assertEqual(self.o2.readings[self.o2.position], 23)
def test_prev_reading(self):
length = self.o2.LENGTH
self.o2.prev_reading(length)
self.assertEqual(self.o2.readings[self.o2.position], 12)
self.o2.prev_reading(1)
self.assertEqual(self.o2.readings[self.o2.position], 89)
self.o2.prev_reading(10)
self.assertEqual(self.o2.readings[self.o2.position], 49)
def test_diff(self):
odo = Odometer(2)
self.o2.next_reading(3)
odo.next_reading(5)
self.assertEqual(self.o2.diff(odo), 2)
self.assertEqual(odo.diff(self.o2), 34)
