How to use an_invariant method in hypothesis

Best Python code snippet using hypothesis

test_stateful.py

Source:test_stateful.py Github

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...492 def __init__(self):493 super().__init__()494 @invariant()495 @precondition(lambda _: False)496 def an_invariant(self):497 raise ValueError()498 @precondition(lambda _: False)499 @invariant()500 def another_invariant(self):501 raise ValueError()502 @rule()503 def do_stuff(self):504 pass505 run_state_machine_as_test(Invariant)506def test_invalid_rule_argument():507 """Rule kwargs that are not a Strategy are expected to raise an InvalidArgument error."""508 with pytest.raises(InvalidArgument):509 class InvalidRuleMachine(RuleBasedStateMachine):510 @rule(strategy=object())...

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