Python之测试

sunage001

　　测试函数功能：

def average(values):
"""Computes.
>>> print(average([1,3,5,7,9]))
5.0
"""
return sum(values)/len(values)
 
import doctest
doctest.testmod()
　　结果;
　　TestResults(failed=0, attempted=1)
　　单元测试demo:

import unittest
def average(values):
"""Computes.
>>> print(average([1,3,5,7,9]))
5.0
"""
return sum(values)/len(values)
class TestStatisticalFunctions(unittest.TestCase):
def test_average(self):
self.assertEqual(average([20, 30, 70]), 40.0)
self.assertEqual(round(average([1, 5, 7]), 1), 4.3)
self.assertRaises(ZeroDivisionError, average, [])
self.assertRaises(TypeError, average, 20, 30, 70)
unittest.main() # Calling from the command line invokes all tests
　　执行结果如下;
　　Ran 1 test in 0.022s


OK

Traceback (most recent call last):

  File "C:/Python31/unitTestDemo", line 16, in <module>

    unittest.main() # Calling from the command line invokes all tests

  File "C:\Python31\lib\unittest.py", line 1566, in __init__

    self.runTests()

  File "C:\Python31\lib\unittest.py", line 1613, in runTests

    sys.exit(not self.result.wasSuccessful())

SystemExit: False