mirror of
https://github.com/DioxusLabs/dioxus
synced 2024-12-02 17:09:11 +00:00
51 lines
1.3 KiB
Rust
51 lines
1.3 KiB
Rust
use dioxus::core::{ElementId, Mutation::*};
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use dioxus::prelude::*;
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#[test]
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fn state_shares() {
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fn app(cx: Scope) -> Element {
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cx.provide_context(cx.generation() as i32);
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cx.render(rsx!(child_1 {}))
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}
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fn child_1(cx: Scope) -> Element {
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cx.render(rsx!(child_2 {}))
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}
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fn child_2(cx: Scope) -> Element {
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let value = cx.consume_context::<i32>().unwrap();
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cx.render(rsx!("Value is {value}"))
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}
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let mut dom = VirtualDom::new(app);
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assert_eq!(
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dom.rebuild().santize().edits,
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[
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CreateTextNode { value: "Value is 0", id: ElementId(1,) },
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AppendChildren { m: 1, id: ElementId(0) },
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]
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);
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dom.mark_dirty(ScopeId(0));
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_ = dom.render_immediate();
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assert_eq!(dom.base_scope().consume_context::<i32>().unwrap(), 1);
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dom.mark_dirty(ScopeId(0));
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_ = dom.render_immediate();
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assert_eq!(dom.base_scope().consume_context::<i32>().unwrap(), 2);
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dom.mark_dirty(ScopeId(2));
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assert_eq!(
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dom.render_immediate().santize().edits,
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[SetText { value: "Value is 2", id: ElementId(1,) },]
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);
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dom.mark_dirty(ScopeId(0));
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dom.mark_dirty(ScopeId(2));
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let edits = dom.render_immediate();
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assert_eq!(
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edits.santize().edits,
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[SetText { value: "Value is 3", id: ElementId(1,) },]
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);
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}
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