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