TDD with Python

Example to Demonstrate Test driven development using Python




#write a unite test to tst the method
"""doc sting
"""
import unittest

def simple_intrest(principle, rate, time):
    """this function compute simple interest
    """
    return (principle*rate*time)/100
def amount(principle, rate, time):
    """this function compute the amount on
    i.e  simple interest + principle
    """
    return principle+simple_intrest(principle, rate, time)
class TestBanking(unittest.TestCase):
    """ the is the test class
    """
    def test_simple_intrest(self):
        """ test simple intrest
        """
        self.assertEqual(simple_intrest(1000, 8, 1), 80)
        self.assertEqual(simple_intrest(100, 8, 1), 8)
        self.assertEqual(simple_intrest(-100, 8, 1), -8)
    def test_amount(self):
        """ test amount
        """
        self.assertEqual(amount(100, 8, 1), 108)
        self.assertEqual(amount(10, 8, 1), 10.8)

RUN_TEST = TestBanking()
#call test simple intrest function
RUN_TEST.test_simple_intrest()
#call test amount function
RUN_TEST.test_amount()