本文整理汇总了Python中transitions.Machine.prepare_move方法的典型用法代码示例。如果您正苦于以下问题：Python Machine.prepare_move方法的具体用法？Python Machine.prepare_move怎么用？Python Machine.prepare_move使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类transitions.Machine的用法示例。
在下文中一共展示了Machine.prepare_move方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_prepare
# 需要导入模块: from transitions import Machine [as 别名]
# 或者: from transitions.Machine import prepare_move [as 别名]
def test_prepare(self):
m = Machine(Stuff(), states=["A", "B", "C"], initial="A")
m.add_transition("move", "A", "B", prepare="increase_level")
m.add_transition("move", "B", "C", prepare="increase_level")
m.add_transition("move", "C", "A", prepare="increase_level", conditions="this_fails")
m.add_transition("dont_move", "A", "C", prepare="increase_level")
m.prepare_move("increase_level")
m.model.move()
self.assertEquals(m.model.state, "B")
self.assertEquals(m.model.level, 3)
m.model.move()
self.assertEquals(m.model.state, "C")
self.assertEquals(m.model.level, 5)
# State does not advance, but increase_level still runs
m.model.move()
self.assertEquals(m.model.state, "C")
self.assertEquals(m.model.level, 7)
# An invalid transition shouldn't execute the callback
with self.assertRaises(MachineError):
m.model.dont_move()
self.assertEquals(m.model.state, "C")
self.assertEquals(m.model.level, 7)示例2: test_prepare
# 需要导入模块: from transitions import Machine [as 别名]
# 或者: from transitions.Machine import prepare_move [as 别名]
def test_prepare(self):
m = Machine(Stuff(), states=['A', 'B', 'C'], initial='A')
m.add_transition('move', 'A', 'B', prepare='increase_level')
m.add_transition('move', 'B', 'C', prepare='increase_level')
m.add_transition('move', 'C', 'A', prepare='increase_level', conditions='this_fails')
m.add_transition('dont_move', 'A', 'C', prepare='increase_level')
m.prepare_move('increase_level')
m.model.move()
self.assertEqual(m.model.state, 'B')
self.assertEqual(m.model.level, 3)
m.model.move()
self.assertEqual(m.model.state, 'C')
self.assertEqual(m.model.level, 5)
# State does not advance, but increase_level still runs
m.model.move()
self.assertEqual(m.model.state, 'C')
self.assertEqual(m.model.level, 7)
# An invalid transition shouldn't execute the callback
try:
m.model.dont_move()
except MachineError as e:
self.assertTrue("Can't trigger event" in str(e))
self.assertEqual(m.model.state, 'C')
self.assertEqual(m.model.level, 7)