学python中会发现要测试某个函数的功能是否如你预期的一样，用python提供的unittest中的TestCase将会更加的简单，而且更加好用。
单元测试：
单元：
def get_formatted_name(first, last, middle=''):
"""Generate a neatly formatted full name."""
if middle:
full_name = first + ' ' + middle + ' ' + last
else:
full_name = first + ' ' + last
return full_name.title()
测试：
import unittest
from name_function import get_formatted_name
"""单元测试"""
class NamesTestCase(unittest.TestCase):
"""的测试name_function.py"""
def test_first_last_name(self):
"""能够正确的处理像Janis Joplin这样的姓名吗？"""
formatted_name = get_formatted_name('janis', 'joplin')
self.assertEqual(formatted_name, 'Janis Joplin')
def test_first_middle_last_name(self):
"""能够正确的处理像Wolfgang Amadeus Mozart这样的姓名吗？"""
formatted_name = get_formatted_name('wolfgang', 'amadeus', 'mozart')
self.assertEqual(formatted_name, 'Wolfgang Mozart Amadeus')
unittest.main()
类的测试：
类：
class AnonymousSurvey():
""""收集匿名调查的问卷的答案"""
def __init__(self, question):
"""存储一个问题，并为存储答案做准备"""
self.question = question
self.responses = []
def show_question(self):
"""显示调查问卷"""
print(self.question)
def store_response(self, new_response):
"""存储单份调查答卷"""
self.responses.append(new_response)
def show_results(self):
"""显示收集到的所有调查答卷"""
print("Survey results:")
for response in self.responses:
print("- " + response)
测试：
import unittest
from survey import AnonymousSurvey
class TestAnonymousSurvey(unittest.TestCase):
"""针对AnonymousSurvey类的测试"""
def setUp(self):
"""创建一个测试对象和测试结果"""
question = "What language did you first learn to speak?"
self.my_survey = AnonymousSurvey(question)
self.responses = ['English', 'Spanish', 'Mandarin']
def test_store_single_response(self):
"""测试单个答案会被妥善保存"""
self.my_survey.store_response(self.responses[0])
self.assertIn(self.responses[0], self.my_survey.responses)
def test_store_three_response(self):
"""测试三个答案会被妥善保存"""
for response in self.responses:
self.my_survey.store_response(response)
for response in self.responses:
self.assertIn(response, self.my_survey.responses)
unittest.main()