Python Dispatcher.add_target示例

示例#1

文件： test_dispatcher.py 项目： writeoncereadmany/python-dispatch

   def test_uses_default_if_no_match(self):
      dispatcher = Dispatcher('func')
      dispatcher.add_target(Pattern(5), lambda x: x*x)
      dispatcher.add_default(lambda x: x*2)

      self.assertEqual(dispatcher(5), 25)
      self.assertEqual(dispatcher(3), 6)

示例#2

文件： test_dispatcher.py 项目： writeoncereadmany/python-dispatch

 def test_dispatches_correct_method(self):
    dispatcher = Dispatcher('func')
    dispatcher.add_target(Pattern(lambda num: num % 2 == 0), lambda x: 'even')
    dispatcher.add_target(Pattern(lambda num: num % 2 != 0), lambda x: 'odd')
    
    self.assertEqual(dispatcher(2), 'even')
    self.assertEqual(dispatcher(3), 'odd')