5510eaf820
* [REF-2265] ComponentState: scaffold for copying State per Component instance Define a base ComponentState which can be used to easily create copies of the given State definition (Vars and EventHandlers) that are tied to a particular instance of a Component (returned by get_component) * Define `State` field on `Component` for typing compatibility. This is an Optional field of Type[State] and is populated by ComponentState. * Add integration/test_component_state.py Create two independent counters and increment them separately * Add unit test for ComponentState
43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
"""Ensure that Components returned by ComponentState.create have independent State classes."""
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import reflex as rx
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from reflex.components.base.bare import Bare
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def test_component_state():
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"""Create two components with independent state classes."""
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class CS(rx.ComponentState):
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count: int = 0
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def increment(self):
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self.count += 1
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@classmethod
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def get_component(cls, *children, **props):
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return rx.el.div(
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*children,
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**props,
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)
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cs1, cs2 = CS.create("a", id="a"), CS.create("b", id="b")
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assert isinstance(cs1, rx.Component)
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assert isinstance(cs2, rx.Component)
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assert cs1.State is not None
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assert cs2.State is not None
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assert cs1.State != cs2.State
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assert issubclass(cs1.State, CS)
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assert issubclass(cs1.State, rx.State)
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assert issubclass(cs2.State, CS)
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assert issubclass(cs2.State, rx.State)
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assert CS._per_component_state_instance_count == 2
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assert isinstance(cs1.State.increment, rx.event.EventHandler)
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assert cs1.State.increment != cs2.State.increment
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assert len(cs1.children) == 1
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assert cs1.children[0].render() == Bare.create("{`a`}").render()
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assert cs1.id == "a"
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assert len(cs2.children) == 1
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assert cs2.children[0].render() == Bare.create("{`b`}").render()
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assert cs2.id == "b"
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