【python测试】--doctest简单点的
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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[*]# 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.
# 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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[*]# 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.
# 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！
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