python自动化测试之setUp与tearDown实例

本文实例讲述了python自动化测试之setUp与tearDown的用法，分享给大家供大家参考。具体如下：

实例代码如下：

class RomanNumeralConverter(object):
 def __init__(self):
   self.digit_map = {"M":1000, "D":500, "C":100, "L":50, "X":10,  
            "V":5, "I":1}
 def convert_to_decimal(self, roman_numeral):
   val = 0
   for char in roman_numeral:
     val += self.digit_map[char]
   return val

import unittest
class RomanNumeralConverterTest(unittest.TestCase):
 def setUp(self):
   print "Create a new RomanNumeralConverterTest....."
   self.cvt = RomanNumeralConverter()

def tearDown(self):
   print "Destroying a RomanNumeralConverterTest...."
   self.cvt = None

def test_parsing_millenia(self):
   self.assertEquals(1000, self.cvt.convert_to_decimal("M"))

if __name__ == "__main__":
 unittest.main()

输出结果如下：

Create a new RomanNumeralConverterTest.....
Destroying a RomanNumeralConverterTest....
.
----------------------------------------------------------------------
Ran 1 test in 0.016s

OK

注：setUp和tearDown在每个测试方法运行时被调用