dioxus/packages/core/tests/lifecycle.rs

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//! Tests for the lifecycle of components.
use std::{cell::RefCell, rc::Rc};
use anyhow::{Context, Result};
use dioxus::prelude::*;
use dioxus_core as dioxus;
use dioxus_html as dioxus_elements;
mod test_logging;
const IS_LOGGING_ENABLED: bool = true;
type Shared<T> = Rc<RefCell<T>>;
#[test]
fn manual_diffing() {
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test_logging::set_up_logging(IS_LOGGING_ENABLED);
#[derive(PartialEq, Props)]
struct AppProps {
value: Shared<&'static str>,
}
static App: FC<AppProps> = |cx| {
let val = cx.value.borrow();
cx.render(rsx! { div { "{val}" } })
};
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let value = Rc::new(RefCell::new("Hello"));
let mut dom = VirtualDom::new_with_props(
App,
AppProps {
value: value.clone(),
},
);
let _ = dom.rebuild();
*value.borrow_mut() = "goodbye";
let edits = dom.diff();
log::debug!("edits: {:?}", edits);
}