dioxus-mirror/packages/native-core-macro/tests/initial_build.rs

use dioxus::core::ElementId;
use dioxus::prelude::*;
use dioxus_native_core::real_dom::RealDom;
use dioxus_native_core::state::State;
use dioxus_native_core::RealNodeId;
use dioxus_native_core_macro::State;

#[derive(Default, Clone, State)]
struct Empty {}

#[test]
fn initial_build_simple() {
    #[allow(non_snake_case)]
    fn Base(cx: Scope) -> Element {
        render!(div {})
    }

    let vdom = VirtualDom::new(Base);

    let mutations = vdom.create_vnodes(rsx! {
        div{}
    });

    let mut dom: RealDom<Empty> = RealDom::new();

    let _to_update = dom.apply_mutations(vec![mutations]);

    assert_eq!(dom.size(), 2);
    assert_eq!(dom[RealNodeId::ElementId(ElementId(2))].node_data.height, 1);
}

#[test]
fn initial_build_with_children() {
    #[allow(non_snake_case)]
    fn Base(cx: Scope) -> Element {
        render!(div {})
    }

    let vdom = VirtualDom::new(Base);

    let mutations = vdom.create_vnodes(rsx! {
        div{
            div{
                "hello"
                p{
                    "world"
                }
                "hello world"
            }
        }
    });

    let mut dom: RealDom<Empty> = RealDom::new();

    let _to_update = dom.apply_mutations(vec![mutations]);
    assert_eq!(dom.size(), 2);
    assert_eq!(dom[RealNodeId::ElementId(ElementId(2))].node_data.height, 1);
    assert_eq!(dom[RealNodeId::UnaccessableId(6)].node_data.height, 2);
    assert_eq!(dom[RealNodeId::UnaccessableId(5)].node_data.height, 3);
    assert_eq!(dom[RealNodeId::UnaccessableId(8)].node_data.height, 3);
    assert_eq!(dom[RealNodeId::UnaccessableId(10)].node_data.height, 3);
    assert_eq!(dom[RealNodeId::UnaccessableId(9)].node_data.height, 4);
}