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Make kittest's predictable texture filtering honor TextureOptions::NEAREST (#8441)

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This commit is contained in:
Emil Ernerfeldt
2026-08-21 01:33:29 -07:00
committed by GitHub
parent 38c4ab7b3d
commit 00dc6e814b
4 changed files with 95 additions and 2 deletions
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35
crates/egui_demo_lib/tests/misc.rs
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@@ -1,6 +1,41 @@
use egui::{Color32, accesskit::Role};
use egui_kittest::{Harness, kittest::Queryable as _};
/// Textures with [`egui::TextureOptions::NEAREST`] should render crisp,
/// also with kittest's predictable texture filtering.
#[test]
fn test_nearest_texture_filtering() {
let mut texture: Option<egui::TextureHandle> = None;
let mut harness = Harness::builder()
.with_size(egui::Vec2::new(80.0, 48.0))
.build_ui(move |ui| {
let texture = texture.get_or_insert_with(|| {
let pixels = [
Color32::BLACK,
Color32::WHITE,
Color32::BLACK,
Color32::WHITE,
Color32::WHITE,
Color32::BLACK,
Color32::WHITE,
Color32::BLACK,
];
let image = egui::ColorImage::new([4, 2], pixels.to_vec());
ui.ctx()
.load_texture("checkerboard", image, egui::TextureOptions::NEAREST)
});
let rect = egui::Rect::from_min_size(egui::pos2(8.0, 8.0), egui::vec2(64.0, 32.0));
let uv = egui::Rect::from_min_max(egui::pos2(0.0, 0.0), egui::pos2(1.0, 1.0));
ui.painter().add(
egui::epaint::RectShape::filled(rect, 0, Color32::WHITE)
.with_texture(texture.id(), uv),
);
});
harness.run();
harness.snapshot("nearest_texture_filtering");
}
#[test]
fn test_kerning() {
let mut results = egui_kittest::SnapshotResults::new();