doctest模块是内置模块
应用举例
# -*- coding: utf-8 -*-
def add(x, y):
"""
求和 x + y
Args:
x: int
y: int
Returns:
int
eg:
>>> add(1, 1)
2
>>> add(5, 5)
10
>>> 2/0
Traceback (most recent call last):
...
ZeroDivisionError: division by zero
"""
return x + y * 2
if __name__ == '__main__':
import doctest
doctest.testmod()
运行结果
**********************************************************************
Failed example:
add(1, 1)
Expected:
2
Got:
3
**********************************************************************
Failed example:
add(5, 5)
Expected:
10
Got:
15
**********************************************************************
1 items had failures:
2 of 2 in __main__.add
***Test Failed*** 2 failures.
Process finished with exit code 0
如果所有测试用例都能通过测试，则不生成任何输出结果
