async def METHOD_NAME() -> None:
    """All disabled widgets should have the :disabled pseudoclass."""
    async with DisableApp().run_test() as pilot:
        for node in pilot.app.screen.query("#test-container > *"):
            node.disabled = True
        assert all(
            node.has_pseudo_class("disabled") and not node.has_pseudo_class("enabled")
            for node in pilot.app.screen.query("#test-container > *")
        )