python自动化测试之从命令行运行测试用例with verbosity

class RomanNumeralConverter(object):   def __init__(self, roman_numeral):     self.roman_numeral = roman_numeral     self.digit_map = {"M":1000, "D":500, "C":100, "L":50, "X":10,               "V":5, "I":1}   def convert_to_decimal(self):     val = 0     for char in self.roman_numeral:       val += self.digit_map[char]     return val     import unittest class RomanNumeralConverterTest(unittest.TestCase):        def test_parsing_millenia(self):     value = RomanNumeralConverter("M")     self.assertEquals(1000, value.convert_to_decimal())        def test_parsing_century(self):     '''THIS is a error test case'''     value = RomanNumeralConverter("C")     self.assertEquals(10, value.convert_to_decimal())                if __name__ == "__main__":   suite = unittest.TestLoader().loadTestsFromTestCase(RomanNumeralConverterTest)   unittest.TextTestRunner(verbosity=2).run(suite)