Python unittest 简单实现参数化的方法

class TestOdd1(unittest.TestCase):
 NUMBER=1
 def runTest(self):
  """Assert that the item is odd"""
  self.assertTrue( self.NUMBER % 2 == 1, "Number should be odd")
 
class TestOdd2(TestOdd1):
 NUMBER=2
 
if __name__ == '__main__':
 unittest.main()

pip install nose
pip install ddt

import unittest
from ddt import ddt, data
 
@ddt
class TestOdd(unittest.TestCase):
 
 @data(3, 4, 12, 23)
 def runTest(self, value):
  self.assertTrue( self.NUMBER % 2 == 1, "Number should be odd")

import unittest
 
class ParametrizedTestCase(unittest.TestCase):
 """ TestCase classes that want to be parametrized should
  inherit from this class.
 """
 def __init__(self, methodName='runTest', param=None):
  super(ParametrizedTestCase, self).__init__(methodName)
  self.param = param
 
 @staticmethod
 def parametrize(testcase_klass, param=None):
  """ Create a suite containing all tests taken from the given
   subclass, passing them the parameter 'param'.
  """
  testloader = unittest.TestLoader()
  testnames = testloader.getTestCaseNames(testcase_klass)
  suite = unittest.TestSuite()
  for name in testnames:
   suite.addTest(testcase_klass(name, param=param))
  return suite

class TestOne(ParametrizedTestCase):
 def test_something(self):
  print 'param =', self.param
  self.assertEqual(1, 1)
 
 def test_something_else(self):
  self.assertEqual(2, 2)

uite = unittest.TestSuite()
suite.addTest(ParametrizedTestCase.parametrize(TestOne, param=42))
suite.addTest(ParametrizedTestCase.parametrize(TestOne, param=13))
unittest.TextTestRunner(verbosity=2).run(suite)

test_something (__main__.TestOne) ... param = 42
ok
test_something_else (__main__.TestOne) ... ok
test_something (__main__.TestOne) ... param = 13
ok
test_something_else (__main__.TestOne) ... ok
 
-----------------------------------------------
Ran 4 tests in 0.000s
 
OK