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egui_kittest: Allow passing state to the app closure (#5313)

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The allows us to pass any state to the ui closure. While it is possible
to just store state in the closure itself, accessing that state after
the harness was created to e.g. read or modify it would require interior
mutability. With this change there are new `Harness::new_state`,
`Harness::run_state`, ... methods that allow passing state on each run.

This builds on top of #5301, which should be merged first

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
This commit is contained in:
lucasmerlin
2024-11-06 14:43:41 +01:00
committed by GitHub
parent fc743d63b4
commit 3c7ad0ee12
6 changed files with 215 additions and 56 deletions
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16
crates/egui_demo_lib/src/demo/text_edit.rs
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@@ -121,12 +121,15 @@ mod tests {
#[test]
pub fn should_type() {
let mut text = "Hello, world!".to_owned();
let mut harness = Harness::new(move |ctx| {
CentralPanel::default().show(ctx, |ui| {
ui.text_edit_singleline(&mut text);
});
});
let text = "Hello, world!".to_owned();
let mut harness = Harness::new_state(
move |ctx, text| {
CentralPanel::default().show(ctx, |ui| {
ui.text_edit_singleline(text);
});
},
text,
);
harness.run();
@@ -144,5 +147,6 @@ mod tests {
harness.run();
let text_edit = harness.get_by_role(accesskit::Role::TextInput);
assert_eq!(text_edit.value().as_deref(), Some("Hi there!"));
assert_eq!(harness.state(), "Hi there!");
}
}