Python之测试

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