def test_diff_many_digits(self):
calc = Calculator("5,4,3,2,1")
self.assertEqual(calc.diff(), -5)
def test_diff_three_digits(self):
calc = Calculator("3,2,1")
self.assertEqual(calc.diff(), 0)
def test_diff_one_digit(self):
calc = Calculator("1")
with self.assertRaises(ValueError):
calc.diff()
def test_diff_two_digits(self):
calc = Calculator("1,0")
self.assertEqual(calc.diff(), 1)
print "8. Fail!!"
calc = Calculator("1,2,3")
if calc.add() == 6:
print "9. Success!"
else:
print "9. Fail!!"
calc = Calculator("1,2,3,4,5,6")
if calc.add() == 21:
print "10. Success!"
else:
print "10. Fail!!"
calc.expr("1,0")
if calc.diff() == 1:
print "11. Success!"
else:
print "11. Fail!!"
c = Calculator("3,2,1")
if c.diff() == 0:
print "12. Success"
else:
print "12. Fail!!"
a = Calculator("5,4,3,2,1")
if a.diff() == -5:
print "13. Success"
else:
print "13. Fail!!"
