python-unittest(5)

執行多個測試套件（suites)

Chaining together a suite of tests

Unittest makes it easy to chain together test cases into a TestSuite. A TestSuite can be run
just like a TestCase, but it also provides additional functionality to add a single test, multiple
tests, and count them.

1. Create a new file named recipe5.py in which to put our sample application and
test cases.

2. Pick a class to test. In this case, we will use our Roman numeral converter.
class RomanNumeralConverter(object):

3. Create two test classes with various test methods spread between them.

4. Create a test runner in a separate file named recipe5_runner.py that pulls in
both test cases.

5. Execute the test runner, and observe how tests are pulled in from both test cases.

 

測試代碼：

Code# !usr/bin/env python 2.7# coding: utf-8# filename: recipe5.pyclass 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 valimport unittestclass RomanNumeralConverterTest(unittest.TestCase):    def setUp(self):        self.cvt = RomanNumeralConverter()    def test_parsing_millenia(self):        self.assertEquals(1000, \                          self.cvt.convert_to_decimal("M"))    def test_parsing_century(self):        self.assertEquals(100, \                          self.cvt.convert_to_decimal("C"))class RomanNumeralComboTest(unittest.TestCase):    def setUp(self):        self.cvt = RomanNumeralConverter()    def test_multi_millenia(self):        self.assertEquals(4000, \                          self.cvt.convert_to_decimal("MMMM"))    def test_multi_add_up(self):        self.assertEquals(2010, \                          self.cvt.convert_to_decimal("MMX"))

 

Code# !usr/bin/env python 2.7# coding: utf-8# filename: recipe5_runner.pyif __name__ == "__main__":    import unittest    from recipe5 import *    suite1 = unittest.TestLoader().loadTestsFromTestCase( \                                 RomanNumeralConverterTest)    suite2 = unittest.TestLoader().loadTestsFromTestCase( \                                 RomanNumeralComboTest)    suite = unittest.TestSuite([suite1, suite2])    unittest.TextTestRunner(verbosity=2).run(suite)

運行結果：

test_parsing_century (recipe5.RomanNumeralConverterTest) ... ok
test_parsing_millenia (recipe5.RomanNumeralConverterTest) ... ok
test_multi_add_up (recipe5.RomanNumeralComboTest) ... ok
test_multi_millenia (recipe5.RomanNumeralComboTest) ... ok

----------------------------------------------------------------------
Ran 4 tests in 0.001s

OK