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Add SnapshotResults struct to egui_kittest (#5672)

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I got annoyed by all the slightly different variations of "collect
snapshot results and unwrap them at the end of test" I've written, so I
added a struct to make this nice and simple.

One controversial thing: It panics when dropped. I wanted to ensure
people cannot forget to unwrap the results at the end, and this was the
best thing I could come up with. I don't think this is possible via
clippy lint or something like that.

* [x] I have followed the instructions in the PR template
This commit is contained in:
lucasmerlin
2025-02-04 14:01:32 +01:00
committed by GitHub
parent 23ed49334e
commit b8051cc301
10 changed files with 135 additions and 53 deletions
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11
crates/egui_demo_app/tests/test_demo_app.rs
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@@ -2,6 +2,7 @@ use egui::accesskit::Role;
use egui::Vec2;
use egui_demo_app::{Anchor, WrapApp};
use egui_kittest::kittest::Queryable;
use egui_kittest::SnapshotResults;
#[test]
fn test_demo_app() {
@@ -27,7 +28,7 @@ fn test_demo_app() {
"Expected to find the Custom3d app.",
);
let mut results = vec![];
let mut results = SnapshotResults::new();
for (name, anchor) in apps {
harness.get_by_role_and_label(Role::Button, name).click();
@@ -68,12 +69,6 @@ fn test_demo_app() {
// Can't use Harness::run because fractal clock keeps requesting repaints
harness.run_steps(2);
if let Err(e) = harness.try_snapshot(&anchor.to_string()) {
results.push(e);
}
}
if let Some(error) = results.first() {
panic!("{error}");
results.add(harness.try_snapshot(&anchor.to_string()));
}
}