【python测试】--doctest简单点的

xuol001

　　1）unitest：通用测试框架
　　2）doctest：简单一点的模块，用于检查文档的，对于编写的单元测试也很在行。
1 doctest

　　


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• #my_math.py  
  
•   
  
• def square(x):  
  
•     '''''
  
•     Squares a number and returns the results.
  
•     >>> square(2)
  
•     4
  
•     >>> square(3)
  
•     9
  
•     '''  
  
•     return x*x  
  
•       
  
• if __name__ == '__main__':  
  
•     import doctest, my_math  
  
•     doctest.testmod(my_math)  
  

#my_math.pydef square(x):'''Squares a number and returns the results.>>> square(2)4>>> square(3)9'''return x*xif __name__ == '__main__':import doctest, my_mathdoctest.testmod(my_math) 　　

　　


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• [iyunv@pdns0 PythonStudy]# python my_math.py -v  
  
• Trying:  
  
•     square(2)  
  
• Expecting:  
  
•     4  
  
• ok  
  
• Trying:  
  
•     square(3)  
  
• Expecting:  
  
•     9  
  
• ok  
  
• 1 items had no tests:  
  
•     my_math  
  
• 1 items passed all tests:  
  
•    2 tests in my_math.square  
  
• 2 tests in 2 items.  
  
• 2 passed and 0 failed.  
  
• Test passed.  
  

[iyunv@pdns0 PythonStudy]# python my_math.py -vTrying:square(2)Expecting:4okTrying:square(3)Expecting:9ok1 items had no tests:my_math1 items passed all tests:2 tests in my_math.square2 tests in 2 items.2 passed and 0 failed.Test passed. 　　
　　把x*x改成x**x,得到以下输出：

　　


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• [iyunv@pdns0 PythonStudy]# python my_math.py -v  
  
• Trying:  
  
•     square(2)  
  
• Expecting:  
  
•     4  
  
• ok  
  
• Trying:  
  
•     square(3)  
  
• Expecting:  
  
•     9  
  
• **********************************************************************  
  
• File "/home/liqing/PythonStudy/my_math.py", line 8, in my_math.square  
  
• Failed example:  
  
•     square(3)  
  
• Expected:  
  
•     9  
  
• Got:  
  
•     27  
  
• 1 items had no tests:  
  
•     my_math  
  
• **********************************************************************  
  
• 1 items had failures:  
  
•    1 of   2 in my_math.square  
  
• 2 tests in 2 items.  
  
• 1 passed and 1 failed.  
  
• ***Test Failed*** 1 failures.  
  

[iyunv@pdns0 PythonStudy]# python my_math.py -vTrying:square(2)Expecting:4okTrying:square(3)Expecting:9**********************************************************************File "/home/liqing/PythonStudy/my_math.py", line 8, in my_math.squareFailed example:square(3)Expected:9Got:271 items had no tests:my_math**********************************************************************1 items had failures:1 of   2 in my_math.square2 tests in 2 items.1 passed and 1 failed.***Test Failed*** 1 failures. 　　
　　错误被扑捉到了！