Python:从入门到实践--第十一章--测试代码--练习

#1.城市和国家:编写一个函数,它接受两个形参:一个城市名和一个国家名。
#这个函数返回一个格式为City,Country的字符串,如Santiago,Chile。将这个函数
#存储在一个名为city_function.py的模块中
#创建一个名为test_cities.py的程序,对编写的函数进行测试
#编写一个名为test_city_country()的方法核实得到的字符串正确

#city_function.py

def city_country(city,country):
    #国家和城市
    country_city = city + " " + country
    return country_city.title()
    
#test_cities.py
from city_function import city_country

print("\nEnter q to quit.")
while True:
    #输入城市和国家
    city = input("\nEnter a city: ")
    if city == 'q':
        break
    country = input("\nEnter country of the city: ")
    if country == 'q':
        break
    
    get_msg = city_country(city,country)
    print("The city and country: " + get_msg.title())
    
    
#unittest_test_city.py
import unittest
from city_function import city_country

class CityTestCase(unittest.TestCase):
    def test_city_country(self):
        get_city_country_name = city_country("beijing","china")
        self.assertEqual(get_city_country_name,"Beijing China")
    
unittest.main()

#2.人口数量:修改1中的函数,使其包含必不可少的形参population
#并返回一个格式City,Country - population xxx 的字符串

def city_country(city,country,population=''):
    #国家和城市
    country_city = city + ", " + country + " -- Population " + population
    return country_city.title()

##测试模块
import unittest
from city_function import city_country

class CityTestCase(unittest.TestCase):
    def test_city_country(self):
        get_city_country_name = city_country("beijing","china","5000")
        self.assertEqual(get_city_country_name,"Beijing, China -- Population 5000")
    
unittest.main()
        
#3.雇员:编写一个名为Employee的类,其方法__init__()接受名、姓和年薪
#并将它们存储在属性中。编写一个名为give_raise()的方法,它默认将年薪增加5000
#但也能够接受其他的年薪增量。编写一个测试用例,其中包含两个测试方法:
#test_give_default_raise()和test_give_custom_raise()
#使用setUp方法,以免在每个测试方法中都创建新的雇员实例,运行这个测试用例
#确认两个测试都通过

#employee.py
class Employee():
    
    def __init__(self,first_name,last_name,salary):
        self.first_name = first_name
        self.last_name = last_name
        self.salary = salary
        self.raising = 5000
        
    def give_raise(self):
        return self.raising

        
#test_employee.py
import unittest
from employee import Employee

class TestEmployee(unittest.TestCase):
    #针对Employee类的测试
    
    def setUp(self):
        self.employee_test = Employee('Ma','Naoke',5000)
        
    def test_give_default_raise(self):
       #测试默认的工资
        raising = self.employee_test.give_raise()
        self.assertEqual(raising,5000)
        
    def test_give_custom_raise(self):
        #测试年薪增量
        self.employee_test.raising = 6000
        raising = self.employee_test.give_raise()
        self.assertEqual(raising,6000)

unittest.main()

 

posted @ 2019-04-02 20:36  红桃6  阅读(685)  评论(0编辑  收藏  举报