各種斷言方法：

assertEqual(a,b)

a == b

assertNotEqual(a,b)

a != b

assertTrue(x)

x == True

assertFalse(x)

x == Flase

assertIn(item,list)

判斷item 在 list中

assertNotIn（item,list）

判斷 item不在list中

編寫一個類，用於調查用戶最喜歡的運動：

class Survey():
    ‘‘‘問卷調查‘‘‘
    def __init__(self,question):
        self.question = question
 

        self.responses = []

    def show_question(self):
        ‘‘‘顯示問題‘‘‘
        print(self.question)

    def store_response(self,new_response):
        ‘‘‘存儲單個答案‘‘‘
        self.responses.append(new_response)

    def show_results(self):
        ‘‘‘顯示收集到的答案‘‘‘
        print(‘surver_result :‘)
        for response in self.responses:
 

            print(‘- ‘ + response)

這個類，通過方法 show_question()，對用戶進行提問；通過方法 store_response()來保存用戶的答復。

最終生成一個列表：responses 用於包含用戶的答案。

編寫一個測試代碼，對這個類進測試：

import unittest
from surveys import Survey

class Test_Survey(unittest.TestCase):
    ‘‘‘針對Survey進測試的類‘‘‘
    def test_store_single_responses(self):
        ‘‘‘測試1個答案的方法‘‘‘
 

        question = "What is your favorite sports ?"
        my_survey = Survey(question)
        my_survey.store_response(‘compute games‘)
        self.assertIn(‘compute games‘ , my_survey.responses)

這個代碼只能對一個答案進行測試，意義不大，如果用戶輸入了多個答案，如何確保程序不出錯，也需要進行測試。

import unittest
from surveys import Survey

class Test_Survey(unittest.TestCase):
    ‘‘‘針對Survey進測試的類‘‘‘
    def test_store_single_responses(self):
        ‘‘‘測試1個答案的方法‘‘‘
        question = "What is your favorite sports ?"
        my_survey = Survey(question)
        my_survey.store_response(‘compute games‘)
        self.assertIn(‘compute games‘ , my_survey.responses)
    def test_store_more_response(self):
        ‘‘‘測試多個答案的方法‘‘‘
        question = "What is your favorite sports ?"
        my_survey = Survey(question)
        responses = [‘basketball‘ , ‘football‘ , ‘compute games‘]
        for response in responses:
            my_survey.store_response(response)
        for response in responses:
            self.assertIn(response,my_survey.responses)

通過setUp巧妙的修改這個測試代碼：

import unittest
from surveys import Survey

class Test_Survey(unittest.TestCase):
    ‘‘‘測試Survey類是否在各種情況正常工作‘‘‘

    def setUp(self):
        question = "What is your favorite sports ?"
        self.my_survey = Survey(question)
        self.responses = [‘basketball‘ , ‘football‘ , ‘compute games‘]

    def test_single_response(self):
        ‘‘‘測試單個答案的方法‘‘‘
        self.my_survey.store_response(self.responses[0])
        self.assertIn(self.responses[0],self.my_survey.responses)
    def test_more_response(self):
        ‘‘‘測試多個答案的方法‘‘‘
        for response in self.responses:
            self.my_survey.store_response(response)
        for response in self.responses:
            self.assertIn(response,self.my_survey.responses)

測試class