#!/usr/bin/python

# encoding: utf-8

def hello():

    print "i am in demo1"

def add(x,y):

    return x+y

#可以把测试代码写到main中，这样别的类调用此类时，也不会执行main函数

if __name__=='__main__':

    hello()

    a=10

    b="hello"

    c='''hello1

    hello2

    helllo3

    '''

    d,e,f=5,'world',True

    print a,b,c,d,e,f

import unittest

from lesson1.demo1 import add

class MyTestCase(unittest.TestCase):

    def test_add(self):

        x=3

        y=4

        z=add(x,y)

        self.assertEqual(z, 7,'method add test failed')

if __name__ == '__main__':

    unittest.main()